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/array-memsafety/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:22:37,207 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:22:37,210 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:22:37,228 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:22:37,228 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:22:37,229 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:22:37,230 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:22:37,232 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:22:37,234 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:22:37,235 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:22:37,236 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:22:37,236 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:22:37,237 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:22:37,239 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:22:37,239 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:22:37,242 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:22:37,244 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:22:37,246 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:22:37,247 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:22:37,249 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:22:37,251 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 16:22:37,257 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:22:37,258 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:22:37,258 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 16:22:37,268 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:22:37,268 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:22:37,269 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:22:37,269 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:22:37,269 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:22:37,269 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:22:37,270 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:22:37,270 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:22:37,270 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:22:37,271 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:22:37,271 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:22:37,271 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:22:37,271 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:22:37,271 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:22:37,272 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:22:37,272 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:22:37,272 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:22:37,272 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:22:37,272 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:22:37,272 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:22:37,273 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:22:37,273 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:22:37,273 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:22:37,273 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:22:37,273 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:22:37,274 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:22:37,274 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:22:37,274 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:22:37,274 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:22:37,274 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 16:22:37,274 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:22:37,275 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:22:37,275 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:22:37,276 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:22:37,276 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:22:37,311 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:22:37,324 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:22:37,328 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:22:37,330 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:22:37,330 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:22:37,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i [2018-01-24 16:22:37,509 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:22:37,517 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:22:37,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:22:37,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:22:37,525 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:22:37,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:22:37" (1/1) ... [2018-01-24 16:22:37,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277e5d8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:37, skipping insertion in model container [2018-01-24 16:22:37,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:22:37" (1/1) ... [2018-01-24 16:22:37,550 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:22:37,592 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:22:37,727 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:22:37,744 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:22:37,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:37 WrapperNode [2018-01-24 16:22:37,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:22:37,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:22:37,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:22:37,753 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:22:37,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:37" (1/1) ... [2018-01-24 16:22:37,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:37" (1/1) ... [2018-01-24 16:22:37,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:37" (1/1) ... [2018-01-24 16:22:37,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:37" (1/1) ... [2018-01-24 16:22:37,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:37" (1/1) ... [2018-01-24 16:22:37,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:37" (1/1) ... [2018-01-24 16:22:37,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:37" (1/1) ... [2018-01-24 16:22:37,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:22:37,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:22:37,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:22:37,791 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:22:37,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:37" (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 16:22:37,846 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:22:37,846 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:22:37,846 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrpbrk [2018-01-24 16:22:37,846 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:22:37,846 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 16:22:37,846 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 16:22:37,846 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:22:37,847 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:22:37,847 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:22:37,847 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:22:37,847 INFO L128 BoogieDeclarations]: Found specification of procedure cstrpbrk [2018-01-24 16:22:37,847 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:22:37,847 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:22:37,847 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:22:38,069 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:22:38,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:22:38 BoogieIcfgContainer [2018-01-24 16:22:38,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:22:38,096 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 16:22:38,096 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 16:22:38,096 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 16:22:38,097 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:22:38" (1/1) ... [2018-01-24 16:22:38,144 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:22:40,005 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:22:40,023 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 16:22:40,026 INFO L268 AbstractInterpreter]: Visited 53 different actions 470 times. Merged at 39 different actions 251 times. Never widened. Found 60 fixpoints after 8 different actions. Largest state had 30 variables. [2018-01-24 16:22:40,028 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 16:22:40,030 INFO L168 Benchmark]: Toolchain (without parser) took 2519.97 ms. Allocated memory was 306.7 MB in the beginning and 468.2 MB in the end (delta: 161.5 MB). Free memory was 266.6 MB in the beginning and 412.7 MB in the end (delta: -146.1 MB). Peak memory consumption was 15.4 MB. Max. memory is 5.3 GB. [2018-01-24 16:22:40,030 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 306.7 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:22:40,031 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.99 ms. Allocated memory is still 306.7 MB. Free memory was 265.7 MB in the beginning and 255.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-24 16:22:40,031 INFO L168 Benchmark]: Boogie Preprocessor took 37.39 ms. Allocated memory is still 306.7 MB. Free memory was 255.5 MB in the beginning and 253.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:22:40,031 INFO L168 Benchmark]: RCFGBuilder took 304.74 ms. Allocated memory is still 306.7 MB. Free memory was 253.5 MB in the beginning and 235.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:22:40,031 INFO L168 Benchmark]: Abstract Interpretation took 1932.50 ms. Allocated memory was 306.7 MB in the beginning and 468.2 MB in the end (delta: 161.5 MB). Free memory was 235.6 MB in the beginning and 412.7 MB in the end (delta: -177.2 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:22:40,033 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 306.7 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 234.99 ms. Allocated memory is still 306.7 MB. Free memory was 265.7 MB in the beginning and 255.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 37.39 ms. Allocated memory is still 306.7 MB. Free memory was 255.5 MB in the beginning and 253.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 304.74 ms. Allocated memory is still 306.7 MB. Free memory was 253.5 MB in the beginning and 235.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 1932.50 ms. Allocated memory was 306.7 MB in the beginning and 468.2 MB in the end (delta: 161.5 MB). Free memory was 235.6 MB in the beginning and 412.7 MB in the end (delta: -177.2 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 43 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 465 LocStat_NO_SUPPORTING_DISEQUALITIES : 112 LocStat_NO_DISJUNCTIONS : -86 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 59 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 83 TransStat_NO_SUPPORTING_DISEQUALITIES : 12 TransStat_NO_DISJUNCTIONS : 61 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.208599 RENAME_VARIABLES(MILLISECONDS) : 0.115470 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.191925 PROJECTAWAY(MILLISECONDS) : 0.041066 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.002069 DISJOIN(MILLISECONDS) : 0.234710 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.133120 ADD_EQUALITY(MILLISECONDS) : 0.043417 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.009887 #CONJOIN_DISJUNCTIVE : 756 #RENAME_VARIABLES : 1658 #UNFREEZE : 0 #CONJOIN : 1043 #PROJECTAWAY : 978 #ADD_WEAK_EQUALITY : 11 #DISJOIN : 155 #RENAME_VARIABLES_DISJUNCTIVE : 1654 #ADD_EQUALITY : 85 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 10 - 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: [L553] int length1 = __VERIFIER_nondet_int(); [L554] int length2 = __VERIFIER_nondet_int(); [L555] COND TRUE length1 < 1 [L556] length1 = 1 [L558] COND TRUE length2 < 1 [L559] length2 = 1 [L561] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L561] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L562] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L562] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L563] FCALL nondetString1[length1-1] = '\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: [L553] int length1 = __VERIFIER_nondet_int(); [L554] int length2 = __VERIFIER_nondet_int(); [L555] COND TRUE length1 < 1 [L556] length1 = 1 [L558] COND TRUE length2 < 1 [L559] length2 = 1 [L561] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L561] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L562] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L562] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L563] FCALL nondetString1[length1-1] = '\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: [L553] int length1 = __VERIFIER_nondet_int(); [L554] int length2 = __VERIFIER_nondet_int(); [L555] COND TRUE length1 < 1 [L556] length1 = 1 [L558] COND TRUE length2 < 1 [L559] length2 = 1 [L561] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L561] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L562] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L562] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L563] FCALL nondetString1[length1-1] = '\0' [L564] FCALL nondetString2[length2-1] = '\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: [L553] int length1 = __VERIFIER_nondet_int(); [L554] int length2 = __VERIFIER_nondet_int(); [L555] COND TRUE length1 < 1 [L556] length1 = 1 [L558] COND TRUE length2 < 1 [L559] length2 = 1 [L561] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L561] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L562] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L562] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L563] FCALL nondetString1[length1-1] = '\0' [L564] FCALL nondetString2[length2-1] = '\0' [L565] CALL cstrpbrk(nondetString1,nondetString2) [L543] const char *scanp; [L544] int c, sc; [L545] s1++ - 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: [L553] int length1 = __VERIFIER_nondet_int(); [L554] int length2 = __VERIFIER_nondet_int(); [L555] COND TRUE length1 < 1 [L556] length1 = 1 [L558] COND TRUE length2 < 1 [L559] length2 = 1 [L561] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L561] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L562] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L562] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L563] FCALL nondetString1[length1-1] = '\0' [L564] FCALL nondetString2[length2-1] = '\0' [L565] CALL cstrpbrk(nondetString1,nondetString2) [L543] const char *scanp; [L544] int c, sc; [L545] EXPR s1++ [L545] EXPR c = *s1++ [L545] COND TRUE (c = *s1++) != 0 [L546] scanp = s2 [L546] scanp++ - UnprovableResult [Line: 552]: 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: [L553] int length1 = __VERIFIER_nondet_int(); [L554] int length2 = __VERIFIER_nondet_int(); [L555] COND TRUE length1 < 1 [L556] length1 = 1 [L558] COND TRUE length2 < 1 [L559] length2 = 1 [L561] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L561] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L562] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L562] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L563] FCALL nondetString1[length1-1] = '\0' [L564] FCALL nondetString2[length2-1] = '\0' [L565] CALL cstrpbrk(nondetString1,nondetString2) [L543] const char *scanp; [L544] int c, sc; [L545] EXPR s1++ [L545] EXPR c = *s1++ [L545] COND FALSE !((c = *s1++) != 0) [L550] RET return (((void *)0)); [L565] cstrpbrk(nondetString1,nondetString2) [L566] return 0; - 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 * 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/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-22-40-042.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-22-40-042.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrpbrk-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-22-40-042.csv Received shutdown request...