java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-circular_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:34:25,501 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:34:25,503 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:34:25,519 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:34:25,519 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:34:25,520 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:34:25,521 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:34:25,523 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:34:25,524 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:34:25,525 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:34:25,526 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:34:25,526 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:34:25,526 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:34:25,528 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:34:25,529 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:34:25,531 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:34:25,534 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:34:25,536 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:34:25,538 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:34:25,539 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:34:25,541 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 16:34:25,547 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:34:25,548 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:34:25,548 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf [2018-01-24 16:34:25,558 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:34:25,558 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:34:25,559 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:34:25,559 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:34:25,560 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:34:25,560 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:34:25,560 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:34:25,560 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:34:25,561 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:34:25,561 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:34:25,561 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:34:25,562 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:34:25,562 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:34:25,562 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:34:25,562 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:34:25,562 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:34:25,562 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:34:25,563 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:34:25,563 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:34:25,563 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:34:25,563 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:34:25,563 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:34:25,564 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:34:25,564 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:34:25,564 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:34:25,564 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:34:25,564 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:34:25,565 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:34:25,565 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:34:25,565 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 16:34:25,565 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:34:25,565 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:34:25,565 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:34:25,566 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:34:25,567 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:34:25,604 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:34:25,617 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:34:25,620 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:34:25,622 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:34:25,622 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:34:25,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-circular_true-unreach-call_true-valid-memsafety.i [2018-01-24 16:34:25,780 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:34:25,786 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:34:25,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:34:25,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:34:25,791 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:34:25,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:34:25" (1/1) ... [2018-01-24 16:34:25,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4be6e797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:25, skipping insertion in model container [2018-01-24 16:34:25,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:34:25" (1/1) ... [2018-01-24 16:34:25,813 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:34:25,857 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:34:25,987 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:34:26,006 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:34:26,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:26 WrapperNode [2018-01-24 16:34:26,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:34:26,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:34:26,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:34:26,016 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:34:26,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:26" (1/1) ... [2018-01-24 16:34:26,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:26" (1/1) ... [2018-01-24 16:34:26,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:26" (1/1) ... [2018-01-24 16:34:26,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:26" (1/1) ... [2018-01-24 16:34:26,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:26" (1/1) ... [2018-01-24 16:34:26,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:26" (1/1) ... [2018-01-24 16:34:26,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:26" (1/1) ... [2018-01-24 16:34:26,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:34:26,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:34:26,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:34:26,067 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:34:26,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:34:26" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:34:26,120 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:34:26,120 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:34:26,120 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:34:26,121 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 16:34:26,121 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 16:34:26,121 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 16:34:26,121 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 16:34:26,121 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:34:26,121 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:34:26,122 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:34:26,122 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 16:34:26,122 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 16:34:26,122 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:34:26,122 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-24 16:34:26,122 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:34:26,123 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:34:26,123 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:34:26,549 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:34:26,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:34:26 BoogieIcfgContainer [2018-01-24 16:34:26,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:34:26,550 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 16:34:26,551 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 16:34:26,551 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 16:34:26,552 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:34:26" (1/1) ... [2018-01-24 16:34:26,598 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:34:30,506 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:34:30,538 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 16:34:30,547 INFO L268 AbstractInterpreter]: Visited 121 different actions 574 times. Merged at 81 different actions 312 times. Widened at 3 different actions 4 times. Found 32 fixpoints after 20 different actions. Largest state had 46 variables. [2018-01-24 16:34:30,550 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 16:34:30,551 INFO L168 Benchmark]: Toolchain (without parser) took 4770.62 ms. Allocated memory was 306.2 MB in the beginning and 672.1 MB in the end (delta: 366.0 MB). Free memory was 266.1 MB in the beginning and 401.7 MB in the end (delta: -135.6 MB). Peak memory consumption was 230.4 MB. Max. memory is 5.3 GB. [2018-01-24 16:34:30,552 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 306.2 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:34:30,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.29 ms. Allocated memory is still 306.2 MB. Free memory was 265.1 MB in the beginning and 253.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-01-24 16:34:30,552 INFO L168 Benchmark]: Boogie Preprocessor took 49.78 ms. Allocated memory is still 306.2 MB. Free memory was 253.0 MB in the beginning and 251.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:34:30,552 INFO L168 Benchmark]: RCFGBuilder took 483.76 ms. Allocated memory is still 306.2 MB. Free memory was 251.0 MB in the beginning and 222.9 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 5.3 GB. [2018-01-24 16:34:30,553 INFO L168 Benchmark]: Abstract Interpretation took 3999.73 ms. Allocated memory was 306.2 MB in the beginning and 672.1 MB in the end (delta: 366.0 MB). Free memory was 222.9 MB in the beginning and 401.7 MB in the end (delta: -178.8 MB). Peak memory consumption was 187.1 MB. Max. memory is 5.3 GB. [2018-01-24 16:34:30,554 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 306.2 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 229.29 ms. Allocated memory is still 306.2 MB. Free memory was 265.1 MB in the beginning and 253.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 49.78 ms. Allocated memory is still 306.2 MB. Free memory was 253.0 MB in the beginning and 251.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 483.76 ms. Allocated memory is still 306.2 MB. Free memory was 251.0 MB in the beginning and 222.9 MB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 3999.73 ms. Allocated memory was 306.2 MB in the beginning and 672.1 MB in the end (delta: 366.0 MB). Free memory was 222.9 MB in the beginning and 401.7 MB in the end (delta: -178.8 MB). Peak memory consumption was 187.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 87 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 1070 LocStat_NO_SUPPORTING_DISEQUALITIES : 464 LocStat_NO_DISJUNCTIONS : -174 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 125 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 174 TransStat_NO_SUPPORTING_DISEQUALITIES : 48 TransStat_NO_DISJUNCTIONS : 141 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.834752 RENAME_VARIABLES(MILLISECONDS) : 0.333057 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.398409 PROJECTAWAY(MILLISECONDS) : 0.027009 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001916 DISJOIN(MILLISECONDS) : 0.713186 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.356037 ADD_EQUALITY(MILLISECONDS) : 0.017035 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.019991 #CONJOIN_DISJUNCTIVE : 1096 #RENAME_VARIABLES : 2271 #UNFREEZE : 0 #CONJOIN : 1409 #PROJECTAWAY : 1170 #ADD_WEAK_EQUALITY : 43 #DISJOIN : 357 #RENAME_VARIABLES_DISJUNCTIVE : 2130 #ADD_EQUALITY : 185 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 40 - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] FCALL head->next - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND TRUE __VERIFIER_nondet_int() [L996] EXPR, FCALL malloc(sizeof(SLL)) [L996] FCALL x->next = malloc(sizeof(SLL)) - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND TRUE __VERIFIER_nondet_int() [L996] EXPR, FCALL malloc(sizeof(SLL)) [L996] FCALL x->next = malloc(sizeof(SLL)) - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND TRUE __VERIFIER_nondet_int() [L996] EXPR, FCALL malloc(sizeof(SLL)) [L996] FCALL x->next = malloc(sizeof(SLL)) [L997] FCALL x->next - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND TRUE __VERIFIER_nondet_int() [L996] EXPR, FCALL malloc(sizeof(SLL)) [L996] FCALL x->next = malloc(sizeof(SLL)) [L997] EXPR, FCALL x->next [L997] x = x->next [L998] FCALL x->next = head - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] FCALL x->data - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] FCALL x->data - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND TRUE __VERIFIER_nondet_int() [L996] EXPR, FCALL malloc(sizeof(SLL)) [L996] FCALL x->next = malloc(sizeof(SLL)) [L997] EXPR, FCALL x->next [L997] x = x->next [L998] FCALL x->next = head [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1010] FCALL x->data = state - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] EXPR, FCALL x->data [L1019] COND FALSE !(x->data != 0) [L1025] FCALL head->next - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] EXPR, FCALL x->data [L1019] COND TRUE x->data != 0 [L1021] FCALL x->next - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] EXPR, FCALL x->data [L1019] COND TRUE x->data != 0 [L1021] EXPR, FCALL x->next [L1021] FCALL x->next->data - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] EXPR, FCALL x->data [L1019] COND TRUE x->data != 0 [L1021] EXPR, FCALL x->next [L1021] FCALL x->next->data - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] EXPR, FCALL x->data [L1019] COND FALSE !(x->data != 0) [L1025] EXPR, FCALL head->next [L1025] x = head->next [L1027] FCALL x->data - UnprovableResult [Line: 1]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] EXPR, FCALL x->data [L1019] COND FALSE !(x->data != 0) [L1025] EXPR, FCALL head->next [L1025] x = head->next [L1027] EXPR, FCALL x->data [L1027] COND FALSE !(x->data != 0) [L1033] FCALL free(x) - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] EXPR, FCALL x->data [L1019] COND FALSE !(x->data != 0) [L1025] EXPR, FCALL head->next [L1025] x = head->next [L1027] EXPR, FCALL x->data [L1027] COND TRUE x->data != 0 [L1029] head = x [L1030] FCALL x->next - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] EXPR, FCALL x->data [L1019] COND TRUE x->data != 0 [L1021] EXPR, FCALL x->next [L1021] EXPR, FCALL x->next->data [L1021] x->next->data == 0 || x->data <= x->next->data [L1021] FCALL x->data - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] EXPR, FCALL x->data [L1019] COND TRUE x->data != 0 [L1021] EXPR, FCALL x->next [L1021] EXPR, FCALL x->next->data [L1021] x->next->data == 0 || x->data <= x->next->data [L1021] FCALL x->data [L1021] FCALL x->next - UnprovableResult [Line: 982]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] EXPR, FCALL x->data [L1019] COND FALSE !(x->data != 0) [L1025] EXPR, FCALL head->next [L1025] x = head->next [L1027] EXPR, FCALL x->data [L1027] COND FALSE !(x->data != 0) [L1033] FCALL free(x) [L1035] return 0; - UnprovableResult [Line: 1]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] EXPR, FCALL x->data [L1019] COND FALSE !(x->data != 0) [L1025] EXPR, FCALL head->next [L1025] x = head->next [L1027] EXPR, FCALL x->data [L1027] COND TRUE x->data != 0 [L1029] head = x [L1030] EXPR, FCALL x->next [L1030] x = x->next [L1031] FCALL free(head) - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] EXPR, FCALL x->data [L1019] COND TRUE x->data != 0 [L1021] EXPR, FCALL x->next [L1021] EXPR, FCALL x->next->data [L1021] EXPR x->next->data == 0 || x->data <= x->next->data [L1021] COND FALSE !(!(x->next->data == 0 || x->data <= x->next->data)) [L1021] COND FALSE !(0) [L1022] FCALL x->next - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] EXPR, FCALL x->data [L1019] COND TRUE x->data != 0 [L1021] EXPR, FCALL x->next [L1021] EXPR, FCALL x->next->data [L1021] x->next->data == 0 || x->data <= x->next->data [L1021] FCALL x->data [L1021] EXPR, FCALL x->next [L1021] FCALL x->next->data - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] EXPR, FCALL head->next [L1016] x = head->next [L1017] COND FALSE !(!(((void*)0) != x)) [L1017] COND FALSE !(0) [L1019] EXPR, FCALL x->data [L1019] COND FALSE !(x->data != 0) [L1025] EXPR, FCALL head->next [L1025] x = head->next [L1027] EXPR, FCALL x->data [L1027] COND TRUE x->data != 0 [L1029] head = x [L1030] EXPR, FCALL x->next [L1030] x = x->next [L1031] FCALL free(head) [L1027] FCALL x->data - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L985] EXPR, FCALL malloc(sizeof(SLL)) [L985] SLL* head = malloc(sizeof(SLL)); [L986] FCALL head->next = head [L987] FCALL head->data = 0 [L989] SLL* x = head; [L990] int state = 1; [L993] COND TRUE __VERIFIER_nondet_int() [L996] EXPR, FCALL malloc(sizeof(SLL)) [L996] FCALL x->next = malloc(sizeof(SLL)) [L997] EXPR, FCALL x->next [L997] x = x->next [L998] FCALL x->next = head [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1010] FCALL x->data = state [L1012] COND FALSE !(!(((void*)0) != x)) [L1012] COND FALSE !(0) [L993] COND TRUE __VERIFIER_nondet_int() [L996] EXPR, FCALL malloc(sizeof(SLL)) [L996] FCALL x->next = malloc(sizeof(SLL)) [L997] EXPR, FCALL x->next [L997] x = x->next [L998] FCALL x->next = head [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1010] FCALL x->data = state [L1012] COND FALSE !(!(((void*)0) != x)) [L1012] COND FALSE !(0) [L993] COND FALSE !(__VERIFIER_nondet_int()) [L1014] FCALL x->data = state [L1016] FCALL head->next - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-circular_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-34-30-566.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-circular_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-34-30-566.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sll-circular_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-34-30-566.csv Received shutdown request...