./jbmc --propertyfile ../git-sv-benchmarks/java/ReachSafety.prp ../git-sv-benchmarks/java/jbmc-regression/return1_false-assert.jar -------------------------------------------------------------------------------- ./jbmc-binary --throw-runtime-exceptions --string-max-input-length 100 --classpath core-models.jar --graphml-witness /tmp/JBMC-log.jYFGIF.witness --unwind 11 --stop-on-fail --64 --object-bits 11 --function Main.main ../git-sv-benchmarks/java/jbmc-regression/return1_false-assert.jar Unwind: 11 JBMC version 5.9 (cbmc-5.7-5176-g7c4b5aa) 64-bit x86_64 linux Parsing ../git-sv-benchmarks/java/jbmc-regression/return1_false-assert.jar JAR file without entry point: loading class files failed to load class `java.io.ObjectOutputStream' failed to load class `java.io.ObjectInputStream' failed to load class `java.io.PrintWriter' failed to load class `java.io.PrintStream' failed to load class `java.io.IOException' failed to load class `java.io.Serializable' failed to load class `java.lang.StackTraceElement' failed to load class `java.util.Objects' failed to load class `java.lang.AbstractStringBuilder' failed to load class `java.lang.invoke.MethodHandles' failed to load class `java.util.PrimitiveIterator' failed to load class `java.lang.invoke.LambdaMetafactory' failed to load class `java.lang.invoke.MethodHandle' failed to load class `java.lang.invoke.MethodType' failed to load class `java.lang.invoke.MethodHandles$Lookup' failed to load class `java.lang.invoke.CallSite' failed to load class `java.util.Spliterators' failed to load class `java.util.PrimitiveIterator$OfInt' failed to load class `java.util.Spliterator$OfInt' failed to load class `java.util.stream.StreamSupport' failed to load class `java.util.stream.IntStream' failed to load class `java.util.Spliterator' failed to load class `java.util.function.Supplier' failed to load class `java.util.NoSuchElementException' failed to load class `java.util.function.IntConsumer' failed to load class `java.lang.Comparable' failed to load class `java.util.Locale' failed to load class `java.lang.CharacterName' failed to load class `java.lang.CharacterData' failed to load class `java.lang.Byte' failed to load class `java.io.UnsupportedEncodingException' failed to load class `java.util.Comparator' failed to load class `java.lang.Iterable' failed to load class `java.util.Iterator' failed to load class `java.nio.charset.Charset' failed to load class `java.io.BufferedInputStream' failed to load class `java.lang.Number' failed to load class `java.lang.Long' failed to load class `java.lang.Appendable' failed to load class `java.util.HashMap' failed to load class `sun.reflect.Reflection' failed to load class `java.lang.System' failed to load class `java.lang.SecurityManager' failed to load class `java.lang.ClassLoader' failed to load class `java.util.Map' failed to load class `java.io.ObjectStreamException' failed to load class `java.io.InvalidObjectException' failed to load class `java.util.Arrays' Converting Method: java::java.lang.Object.getClass could not parse signature: ()Ljava/lang/Class<*>; Unsupported class signature: wild card generic reverting to descriptor: ()Ljava/lang/Class; Method: java::java.lang.String.join could not parse signature: (Ljava/lang/CharSequence;Ljava/lang/Iterable<+Ljava/lang/CharSequence;>;)Ljava/lang/String; Unsupported class signature: wild card generic reverting to descriptor: (Ljava/lang/CharSequence;Ljava/lang/Iterable;)Ljava/lang/String; Method: java::java.lang.Class.forName could not parse signature: (Ljava/lang/String;)Ljava/lang/Class<*>; Unsupported class signature: wild card generic reverting to descriptor: (Ljava/lang/String;)Ljava/lang/Class; Method: java::java.lang.Class.forName could not parse signature: (Ljava/lang/String;ZLjava/lang/ClassLoader;)Ljava/lang/Class<*>; Unsupported class signature: wild card generic reverting to descriptor: (Ljava/lang/String;ZLjava/lang/ClassLoader;)Ljava/lang/Class; Method: java::java.lang.Class.desiredAssertionStatus0 could not parse signature: (Ljava/lang/Class<*>;)Z Unsupported class signature: wild card generic reverting to descriptor: (Ljava/lang/Class;)Z Method: java::java.lang.Character$UnicodeScript. signature: ()V descriptor: (Ljava/lang/String;I)V different number of parameters, reverting to descriptor Class: java.lang.Enum could not parse signature: ;>Ljava/lang/Object;Ljava/lang/Comparable;Ljava/io/Serializable; Unsupported class signature: Failed to find generic signature closing delimiter (or recursive generic): java/lang/Enum;>(Ljava/lang/Class;Ljava/lang/String;)TT; Unsupported class signature: Cannot currently parse bounds on generic types reverting to descriptor: (Ljava/lang/Class;Ljava/lang/String;)Ljava/lang/Enum; Method: java::org.cprover.CProver.nondetWithNull could not parse signature: ()TT; Unsupported class signature: Cannot currently parse bounds on generic types reverting to descriptor: ()Ljava/lang/Object; Method: java::org.cprover.CProver.nondetWithNull could not parse signature: (TT;)TT; Unsupported class signature: Cannot currently parse bounds on generic types reverting to descriptor: (Ljava/lang/Object;)Ljava/lang/Object; Method: java::org.cprover.CProver.nondetWithoutNull could not parse signature: ()TT; Unsupported class signature: Cannot currently parse bounds on generic types reverting to descriptor: ()Ljava/lang/Object; Method: java::org.cprover.CProver.nondetWithoutNull could not parse signature: (TT;)TT; Unsupported class signature: Cannot currently parse bounds on generic types reverting to descriptor: (Ljava/lang/Object;)Ljava/lang/Object; Method: java::org.cprover.CProver.nondetWithNullForNotModelled could not parse signature: ()TT; Unsupported class signature: Cannot currently parse bounds on generic types reverting to descriptor: ()Ljava/lang/Object; Method: java::org.cprover.CProver.nondetWithoutNullForNotModelled could not parse signature: ()TT; Unsupported class signature: Cannot currently parse bounds on generic types reverting to descriptor: ()Ljava/lang/Object; Java: added 2219 String or Class constant symbols Generating GOTO Program Running GOTO functions transformation passes Running with 11 object bits, 53 offset bits (user-specified) Starting Bounded Model Checking Unwinding loop __CPROVER__start.0 iteration 1 thread 0 Unwinding loop __CPROVER__start.0 iteration 2 thread 0 Unwinding loop __CPROVER__start.0 iteration 3 thread 0 Unwinding loop __CPROVER__start.0 iteration 4 thread 0 Unwinding loop __CPROVER__start.0 iteration 5 thread 0 Unwinding recursion java::Main::clinit_wrapper iteration 1 aborting path on assume(false) at file Main.java line 34 function java::Main.main:([Ljava/lang/String;)V bytecode-index 16 thread 0 size of program expression: 452 steps simple slicing removed 8 assignments Generated 2 VCC(s), 1 remaining after simplification Passing problem to string refinement loop with MiniSAT 2.2.1 without simplifier converting SSA Running string refinement loop with MiniSAT 2.2.1 without simplifier BV-Refinement: post-processing BV-Refinement: iteration 1 12356 variables, 13085 clauses SAT checker: instance is SATISFIABLE BV-Refinement: got SAT, and it simulates => SAT Total iterations: 1 Runtime decision procedure: 0.0108s Building error trace Counterexample: State 3 thread 0 ---------------------------------------------------- __CPROVER_rounding_mode=0 (00000000 00000000 00000000 00000000) State 4 file Main.java line 30 function java::Main.main:([Ljava/lang/String;)V thread 0 ---------------------------------------------------- java$$Main$$clinit_already_run=false (0) State 6 thread 0 ---------------------------------------------------- Main@class_model={ .@java.lang.Object={ .@class_identifier="java::java.lang.Class", .cproverMonitorCount=0 }, .name=null, .isAnnotation=false, .isArray=false, .isInterface=false, .isSynthetic=false, .isLocalClass=false, .isMemberClass=false, .isEnum=false, .enumConstantDirectory=null } ({ { ?, 00000000 00000000 00000000 00000000 }, 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000, 00000000, 00000000, 00000000, 00000000, 00000000, 00000000, 00000000, 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 }) State 9 thread 0 ---------------------------------------------------- this=&Main@class_model.@java.lang.Object.@class_identifier (00000000 01000000 00000000 00000000 00000000 00000000 00000000 00000000) State 10 thread 0 ---------------------------------------------------- name=&Main.@java.lang.Object.@class_identifier (00000000 01100000 00000000 00000000 00000000 00000000 00000000 00000000) State 11 thread 0 ---------------------------------------------------- isAnnotation=false (00000000) State 12 thread 0 ---------------------------------------------------- isArray=false (00000000) State 13 thread 0 ---------------------------------------------------- isInterface=false (00000000) State 14 thread 0 ---------------------------------------------------- isSynthetic=false (00000000) State 15 thread 0 ---------------------------------------------------- isLocalClass=false (00000000) State 16 thread 0 ---------------------------------------------------- isMemberClass=false (00000000) State 17 thread 0 ---------------------------------------------------- isEnum=false (00000000) State 19 file java/lang/Class.java line 463 function java::java.lang.Class.cproverInitializeClassLiteral:(Ljava/lang/String;ZZZZZZZ)V bytecode-index 2 thread 0 ---------------------------------------------------- Main@class_model.name=&Main.@java.lang.Object.@class_identifier (00000000 01100000 00000000 00000000 00000000 00000000 00000000 00000000) State 21 file java/lang/Class.java line 464 function java::java.lang.Class.cproverInitializeClassLiteral:(Ljava/lang/String;ZZZZZZZ)V bytecode-index 5 thread 0 ---------------------------------------------------- Main@class_model.isAnnotation=false (00000000) State 23 file java/lang/Class.java line 465 function java::java.lang.Class.cproverInitializeClassLiteral:(Ljava/lang/String;ZZZZZZZ)V bytecode-index 8 thread 0 ---------------------------------------------------- Main@class_model.isArray=false (00000000) State 25 file java/lang/Class.java line 466 function java::java.lang.Class.cproverInitializeClassLiteral:(Ljava/lang/String;ZZZZZZZ)V bytecode-index 11 thread 0 ---------------------------------------------------- Main@class_model.isInterface=false (00000000) State 27 file java/lang/Class.java line 467 function java::java.lang.Class.cproverInitializeClassLiteral:(Ljava/lang/String;ZZZZZZZ)V bytecode-index 14 thread 0 ---------------------------------------------------- Main@class_model.isSynthetic=false (00000000) State 29 file java/lang/Class.java line 468 function java::java.lang.Class.cproverInitializeClassLiteral:(Ljava/lang/String;ZZZZZZZ)V bytecode-index 17 thread 0 ---------------------------------------------------- Main@class_model.isLocalClass=false (00000000) State 31 file java/lang/Class.java line 469 function java::java.lang.Class.cproverInitializeClassLiteral:(Ljava/lang/String;ZZZZZZZ)V bytecode-index 20 thread 0 ---------------------------------------------------- Main@class_model.isMemberClass=false (00000000) State 33 file java/lang/Class.java line 470 function java::java.lang.Class.cproverInitializeClassLiteral:(Ljava/lang/String;ZZZZZZZ)V bytecode-index 23 thread 0 ---------------------------------------------------- Main@class_model.isEnum=false (00000000) State 35 file Main.java line 30 function java::Main.main:([Ljava/lang/String;)V thread 0 ---------------------------------------------------- $assertionsDisabled=false (00000000) State 47 thread 0 ---------------------------------------------------- dynamic_object1={ .@java.lang.Object={ .@class_identifier="java::java.lang.Class", .cproverMonitorCount=0 }, .length=0, .data=null } ({ { ?, 00000000 00000000 00000000 00000000 }, 00000000 00000000 00000000 00000000, 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 }) State 49 thread 0 ---------------------------------------------------- dynamic_object1={ .@java.lang.Object={ .@class_identifier="java::array[reference]", .cproverMonitorCount=0 }, .length=0, .data=null } ({ { ?, 00000000 00000000 00000000 00000000 }, 00000000 00000000 00000000 00000000, 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 }) State 50 thread 0 ---------------------------------------------------- dynamic_object1.length=0 (00000000 00000000 00000000 00000000) State 53 thread 0 ---------------------------------------------------- dynamic_object1.data=dynamic_2_array (00000000 10100000 00000000 00000000 00000000 00000000 00000000 00000000) State 54 thread 0 ---------------------------------------------------- dynamic_2_array={ null, null, null, null, null } ({ 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000, 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000, 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000, 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000, 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 }) State 58 file Main.java line 30 function java::Main.main:([Ljava/lang/String;)V thread 0 ---------------------------------------------------- INPUT arg0a: &dynamic_object1.@java.lang.Object.@class_identifier (00000000 10000000 00000000 00000000 00000000 00000000 00000000 00000000) State 61 file Main.java line 30 function java::Main.main:([Ljava/lang/String;)V thread 0 ---------------------------------------------------- arg0a=&dynamic_object1.@java.lang.Object.@class_identifier (00000000 10000000 00000000 00000000 00000000 00000000 00000000 00000000) State 62 thread 0 ---------------------------------------------------- anonlocal::1i=0 (00000000 00000000 00000000 00000000) State 67 thread 0 ---------------------------------------------------- java$$Main$$clinit_already_run=true (1) State 75 file Main.java line 8 function java::Main.:()V bytecode-index 1 thread 0 ---------------------------------------------------- this=&Main@class_model.@java.lang.Object.@class_identifier (00000000 01000000 00000000 00000000 00000000 00000000 00000000 00000000) State 76 thread 0 ---------------------------------------------------- loader=null (00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000) State 81 file java/lang/Class.java line 411 function java::java.lang.Class.desiredAssertionStatus:()Z bytecode-index 1 thread 0 ---------------------------------------------------- this=&Main@class_model.@java.lang.Object.@class_identifier (00000000 01000000 00000000 00000000 00000000 00000000 00000000 00000000) State 82 thread 0 ---------------------------------------------------- cl=null (00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000) State 87 file java/lang/Class.java line 184 function java::java.lang.Class.getClassLoader:()Ljava/lang/ClassLoader; bytecode-index 1 thread 0 ---------------------------------------------------- this=&Main@class_model.@java.lang.Object.@class_identifier (00000000 01000000 00000000 00000000 00000000 00000000 00000000 00000000) State 91 file java/lang/Class.java line 184 function java::java.lang.Class.getClassLoader:()Ljava/lang/ClassLoader; bytecode-index 2 thread 0 ---------------------------------------------------- cl=null (00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000) State 98 file java/lang/Class.java line 411 function java::java.lang.Class.desiredAssertionStatus:()Z bytecode-index 2 thread 0 ---------------------------------------------------- loader=null (00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000) State 103 file java/lang/Class.java line 414 function java::java.lang.Class.desiredAssertionStatus:()Z bytecode-index 6 thread 0 ---------------------------------------------------- clazz=&Main@class_model.@java.lang.Object.@class_identifier (00000000 01000000 00000000 00000000 00000000 00000000 00000000 00000000) State 120 file Main.java line 8 function java::Main.:()V bytecode-index 6 thread 0 ---------------------------------------------------- $assertionsDisabled=false (00000000) State 127 thread 0 ---------------------------------------------------- anonlocal::0i=0 (00000000 00000000 00000000 00000000) State 128 file Main.java line 12 function java::Main.short_value:()S bytecode-index 1 thread 0 ---------------------------------------------------- anonlocal::0i=1 (00000000 00000000 00000000 00000001) State 132 file Main.java line 30 function java::Main.main:([Ljava/lang/String;)V bytecode-index 1 thread 0 ---------------------------------------------------- anonlocal::1i=1 (00000000 00000000 00000000 00000001) State 142 thread 0 ---------------------------------------------------- anonlocal::0i=0 (00000000 00000000 00000000 00000000) State 143 file Main.java line 18 function java::Main.bool_value:()Z bytecode-index 1 thread 0 ---------------------------------------------------- anonlocal::0i=1 (00000000 00000000 00000000 00000001) State 156 thread 0 ---------------------------------------------------- anonlocal::0l=0L (00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000) State 157 file Main.java line 24 function java::Main.long_value:()J bytecode-index 1 thread 0 ---------------------------------------------------- anonlocal::0l=4295032831L (00000000 00000000 00000000 00000001 00000000 00000000 11111111 11111111) State 169 file Main.java line 34 function java::Main.main:([Ljava/lang/String;)V bytecode-index 13 thread 0 ---------------------------------------------------- dynamic_object13={ .@java.lang.Error={ .@java.lang.Throwable={ .@java.lang.Object={ .@class_identifier="java::java.lang.Class", .cproverMonitorCount=0 }, .detailMessage=null, .cause=null } } } ({ { { { ?, 00000000 00000000 00000000 00000000 }, 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000, 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 } } }) State 171 file Main.java line 34 function java::Main.main:([Ljava/lang/String;)V bytecode-index 13 thread 0 ---------------------------------------------------- dynamic_object13={ .@java.lang.Error={ .@java.lang.Throwable={ .@java.lang.Object={ .@class_identifier="java::java.lang.AssertionError", .cproverMonitorCount=0 }, .detailMessage=null, .cause=null } } } ({ { { { ?, 00000000 00000000 00000000 00000000 }, 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000, 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 } } }) State 175 file Main.java line 34 function java::Main.main:([Ljava/lang/String;)V bytecode-index 15 thread 0 ---------------------------------------------------- this=&dynamic_object13.@java.lang.Error.@java.lang.Throwable.@java.lang.Object.@class_identifier (00000010 00000000 00000000 00000000 00000000 00000000 00000000 00000000) State 179 file java/lang/AssertionError.java line 49 function java::java.lang.AssertionError.:()V bytecode-index 1 thread 0 ---------------------------------------------------- this=&dynamic_object13.@java.lang.Error.@java.lang.Throwable.@java.lang.Object.@class_identifier (00000010 00000000 00000000 00000000 00000000 00000000 00000000 00000000) State 183 file java/lang/Error.java line 58 function java::java.lang.Error.:()V bytecode-index 1 thread 0 ---------------------------------------------------- this=&dynamic_object13.@java.lang.Error.@java.lang.Throwable.@java.lang.Object.@class_identifier (00000010 00000000 00000000 00000000 00000000 00000000 00000000 00000000) State 187 file java/lang/Throwable.java line 264 function java::java.lang.Throwable.:()V bytecode-index 1 thread 0 ---------------------------------------------------- this=&dynamic_object13.@java.lang.Error.@java.lang.Throwable.@java.lang.Object.@class_identifier (00000010 00000000 00000000 00000000 00000000 00000000 00000000 00000000) State 189 file java/lang/Object.java line 40 function java::java.lang.Object.:()V bytecode-index 2 thread 0 ---------------------------------------------------- dynamic_object13.@java.lang.Error.@java.lang.Throwable.@java.lang.Object.cproverMonitorCount=0 (00000000 00000000 00000000 00000000) State 193 file java/lang/Throwable.java line 201 function java::java.lang.Throwable.:()V bytecode-index 4 thread 0 ---------------------------------------------------- dynamic_object13.@java.lang.Error.@java.lang.Throwable.cause=&dynamic_object13.@java.lang.Error.@java.lang.Throwable.@java.lang.Object.@class_identifier (00000010 00000000 00000000 00000000 00000000 00000000 00000000 00000000) Violated property: file Main.java line 34 function java::Main.main:([Ljava/lang/String;)V bytecode-index 16 assertion at file Main.java line 34 function java::Main.main:([Ljava/lang/String;)V bytecode-index 16 false VERIFICATION FAILED EC=10 FALSE