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_cstrstr-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:22:41,875 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:22:41,876 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:22:41,890 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:22:41,891 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:22:41,892 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:22:41,893 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:22:41,895 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:22:41,897 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:22:41,898 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:22:41,899 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:22:41,899 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:22:41,900 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:22:41,902 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:22:41,903 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:22:41,905 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:22:41,907 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:22:41,909 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:22:41,911 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:22:41,912 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:22:41,915 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 16:22:41,920 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:22:41,921 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:22:41,921 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 16:22:41,930 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:22:41,931 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:22:41,931 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:22:41,932 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:22:41,932 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:22:41,932 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:22:41,932 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:22:41,933 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:22:41,933 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:22:41,934 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:22:41,934 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:22:41,934 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:22:41,934 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:22:41,934 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:22:41,935 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:22:41,935 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:22:41,935 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:22:41,935 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:22:41,935 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:22:41,936 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:22:41,936 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:22:41,936 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:22:41,936 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:22:41,936 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:22:41,937 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:22:41,937 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:22:41,937 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:22:41,937 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:22:41,938 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:22:41,938 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 16:22:41,938 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:22:41,938 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:22:41,938 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:22:41,939 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:22:41,940 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:22:41,976 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:22:41,990 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:22:41,995 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:22:41,996 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:22:41,997 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:22:41,998 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i [2018-01-24 16:22:42,181 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:22:42,188 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:22:42,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:22:42,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:22:42,197 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:22:42,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:22:42" (1/1) ... [2018-01-24 16:22:42,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aad67c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:42, skipping insertion in model container [2018-01-24 16:22:42,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:22:42" (1/1) ... [2018-01-24 16:22:42,220 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:22:42,260 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:22:42,381 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:22:42,399 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:22:42,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:42 WrapperNode [2018-01-24 16:22:42,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:22:42,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:22:42,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:22:42,408 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:22:42,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:42" (1/1) ... [2018-01-24 16:22:42,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:42" (1/1) ... [2018-01-24 16:22:42,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:42" (1/1) ... [2018-01-24 16:22:42,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:42" (1/1) ... [2018-01-24 16:22:42,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:42" (1/1) ... [2018-01-24 16:22:42,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:42" (1/1) ... [2018-01-24 16:22:42,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:42" (1/1) ... [2018-01-24 16:22:42,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:22:42,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:22:42,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:22:42,445 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:22:42,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:22:42" (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 16:22:42,493 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:22:42,493 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:22:42,493 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrlen [2018-01-24 16:22:42,493 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrncmp [2018-01-24 16:22:42,493 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrstr [2018-01-24 16:22:42,494 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:22:42,494 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 16:22:42,494 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 16:22:42,494 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:22:42,494 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:22:42,494 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:22:42,494 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:22:42,494 INFO L128 BoogieDeclarations]: Found specification of procedure cstrlen [2018-01-24 16:22:42,494 INFO L128 BoogieDeclarations]: Found specification of procedure cstrncmp [2018-01-24 16:22:42,494 INFO L128 BoogieDeclarations]: Found specification of procedure cstrstr [2018-01-24 16:22:42,495 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:22:42,495 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:22:42,495 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:22:42,844 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:22:42,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:22:42 BoogieIcfgContainer [2018-01-24 16:22:42,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:22:42,845 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 16:22:42,846 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 16:22:42,846 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 16:22:42,847 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:22:42" (1/1) ... [2018-01-24 16:22:42,916 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:22:49,284 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:22:49,308 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 16:22:49,324 INFO L268 AbstractInterpreter]: Visited 104 different actions 1652 times. Merged at 70 different actions 709 times. Never widened. Found 156 fixpoints after 17 different actions. Largest state had 33 variables. [2018-01-24 16:22:49,326 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 16:22:49,327 INFO L168 Benchmark]: Toolchain (without parser) took 7145.18 ms. Allocated memory was 306.2 MB in the beginning and 913.8 MB in the end (delta: 607.6 MB). Free memory was 266.2 MB in the beginning and 318.9 MB in the end (delta: -52.7 MB). Peak memory consumption was 554.9 MB. Max. memory is 5.3 GB. [2018-01-24 16:22:49,328 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 306.2 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:22:49,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.25 ms. Allocated memory is still 306.2 MB. Free memory was 265.2 MB in the beginning and 255.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-24 16:22:49,329 INFO L168 Benchmark]: Boogie Preprocessor took 36.30 ms. Allocated memory is still 306.2 MB. Free memory was 254.1 MB in the beginning and 253.1 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-24 16:22:49,330 INFO L168 Benchmark]: RCFGBuilder took 400.47 ms. Allocated memory is still 306.2 MB. Free memory was 253.1 MB in the beginning and 227.5 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 5.3 GB. [2018-01-24 16:22:49,330 INFO L168 Benchmark]: Abstract Interpretation took 6480.69 ms. Allocated memory was 306.2 MB in the beginning and 913.8 MB in the end (delta: 607.6 MB). Free memory was 226.5 MB in the beginning and 318.9 MB in the end (delta: -92.4 MB). Peak memory consumption was 515.2 MB. Max. memory is 5.3 GB. [2018-01-24 16:22:49,333 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 306.2 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 218.25 ms. Allocated memory is still 306.2 MB. Free memory was 265.2 MB in the beginning and 255.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.30 ms. Allocated memory is still 306.2 MB. Free memory was 254.1 MB in the beginning and 253.1 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 400.47 ms. Allocated memory is still 306.2 MB. Free memory was 253.1 MB in the beginning and 227.5 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 6480.69 ms. Allocated memory was 306.2 MB in the beginning and 913.8 MB in the end (delta: 607.6 MB). Free memory was 226.5 MB in the beginning and 318.9 MB in the end (delta: -92.4 MB). Peak memory consumption was 515.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 80 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 873 LocStat_NO_SUPPORTING_DISEQUALITIES : 251 LocStat_NO_DISJUNCTIONS : -160 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 114 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 150 TransStat_NO_SUPPORTING_DISEQUALITIES : 24 TransStat_NO_DISJUNCTIONS : 120 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.414611 RENAME_VARIABLES(MILLISECONDS) : 0.292262 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.382438 PROJECTAWAY(MILLISECONDS) : 0.445442 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001881 DISJOIN(MILLISECONDS) : 0.274320 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.319319 ADD_EQUALITY(MILLISECONDS) : 0.016399 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.021249 #CONJOIN_DISJUNCTIVE : 2860 #RENAME_VARIABLES : 6802 #UNFREEZE : 0 #CONJOIN : 4377 #PROJECTAWAY : 3967 #ADD_WEAK_EQUALITY : 11 #DISJOIN : 1078 #RENAME_VARIABLES_DISJUNCTIVE : 6594 #ADD_EQUALITY : 152 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 22 - 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: [L579] int length1 = __VERIFIER_nondet_int(); [L580] int length2 = __VERIFIER_nondet_int(); [L581] COND TRUE length1 < 1 [L582] length1 = 1 [L584] COND TRUE length2 < 1 [L585] length2 = 1 [L587] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L587] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L588] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L588] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L589] 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: [L579] int length1 = __VERIFIER_nondet_int(); [L580] int length2 = __VERIFIER_nondet_int(); [L581] COND TRUE length1 < 1 [L582] length1 = 1 [L584] COND TRUE length2 < 1 [L585] length2 = 1 [L587] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L587] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L588] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L588] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L589] 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: [L579] int length1 = __VERIFIER_nondet_int(); [L580] int length2 = __VERIFIER_nondet_int(); [L581] COND TRUE length1 < 1 [L582] length1 = 1 [L584] COND TRUE length2 < 1 [L585] length2 = 1 [L587] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L587] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L588] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L588] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L589] FCALL nondetString1[length1-1] = '\0' [L590] 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: [L579] int length1 = __VERIFIER_nondet_int(); [L580] int length2 = __VERIFIER_nondet_int(); [L581] COND TRUE length1 < 1 [L582] length1 = 1 [L584] COND TRUE length2 < 1 [L585] length2 = 1 [L587] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L587] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L588] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L588] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L589] FCALL nondetString1[length1-1] = '\0' [L590] FCALL nondetString2[length2-1] = '\0' [L591] CALL cstrstr(nondetString1,nondetString2) [L564] char c, sc; [L565] size_t len; [L566] find++ - 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: [L579] int length1 = __VERIFIER_nondet_int(); [L580] int length2 = __VERIFIER_nondet_int(); [L581] COND TRUE length1 < 1 [L582] length1 = 1 [L584] COND TRUE length2 < 1 [L585] length2 = 1 [L587] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L587] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L588] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L588] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L589] FCALL nondetString1[length1-1] = '\0' [L590] FCALL nondetString2[length2-1] = '\0' [L591] CALL cstrstr(nondetString1,nondetString2) [L564] char c, sc; [L565] size_t len; [L566] EXPR find++ [L566] EXPR c = *find++ [L566] COND TRUE (c = *find++) != 0 [L567] CALL cstrlen(find) [L543] const char *s; [L544] s = str [L544] FCALL \read(*s) - UnprovableResult [Line: 578]: 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: [L579] int length1 = __VERIFIER_nondet_int(); [L580] int length2 = __VERIFIER_nondet_int(); [L581] COND TRUE length1 < 1 [L582] length1 = 1 [L584] COND TRUE length2 < 1 [L585] length2 = 1 [L587] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L587] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L588] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L588] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L589] FCALL nondetString1[length1-1] = '\0' [L590] FCALL nondetString2[length2-1] = '\0' [L591] CALL, EXPR cstrstr(nondetString1,nondetString2) [L564] char c, sc; [L565] size_t len; [L566] EXPR find++ [L566] EXPR c = *find++ [L566] COND FALSE !((c = *find++) != 0) [L576] RET return ((char *)s); [L591] EXPR cstrstr(nondetString1,nondetString2) [L591] return cstrstr(nondetString1,nondetString2); - 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: [L579] int length1 = __VERIFIER_nondet_int(); [L580] int length2 = __VERIFIER_nondet_int(); [L581] COND TRUE length1 < 1 [L582] length1 = 1 [L584] COND TRUE length2 < 1 [L585] length2 = 1 [L587] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L587] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L588] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L588] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L589] FCALL nondetString1[length1-1] = '\0' [L590] FCALL nondetString2[length2-1] = '\0' [L591] CALL cstrstr(nondetString1,nondetString2) [L564] char c, sc; [L565] size_t len; [L566] EXPR find++ [L566] EXPR c = *find++ [L566] COND TRUE (c = *find++) != 0 [L567] CALL, EXPR cstrlen(find) [L543] const char *s; [L544] s = str [L544] EXPR, FCALL \read(*s) [L544] COND FALSE !(*s) [L546] RET return (s - str); [L567] EXPR cstrlen(find) [L567] len = cstrlen(find) [L570] s++ - 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: [L579] int length1 = __VERIFIER_nondet_int(); [L580] int length2 = __VERIFIER_nondet_int(); [L581] COND TRUE length1 < 1 [L582] length1 = 1 [L584] COND TRUE length2 < 1 [L585] length2 = 1 [L587] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L587] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L588] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L588] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L589] FCALL nondetString1[length1-1] = '\0' [L590] FCALL nondetString2[length2-1] = '\0' [L591] CALL cstrstr(nondetString1,nondetString2) [L564] char c, sc; [L565] size_t len; [L566] EXPR find++ [L566] EXPR c = *find++ [L566] COND TRUE (c = *find++) != 0 [L567] CALL, EXPR cstrlen(find) [L543] const char *s; [L544] s = str [L544] EXPR, FCALL \read(*s) [L544] COND FALSE !(*s) [L546] RET return (s - str); [L567] EXPR cstrlen(find) [L567] len = cstrlen(find) [L570] EXPR s++ [L570] EXPR sc = *s++ [L570] COND FALSE !((sc = *s++) == 0) [L572] COND FALSE !(sc != c) [L573] CALL cstrncmp(s, find, len) [L551] COND FALSE !(n == 0) [L554] FCALL \read(*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: [L579] int length1 = __VERIFIER_nondet_int(); [L580] int length2 = __VERIFIER_nondet_int(); [L581] COND TRUE length1 < 1 [L582] length1 = 1 [L584] COND TRUE length2 < 1 [L585] length2 = 1 [L587] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L587] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L588] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L588] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L589] FCALL nondetString1[length1-1] = '\0' [L590] FCALL nondetString2[length2-1] = '\0' [L591] CALL cstrstr(nondetString1,nondetString2) [L564] char c, sc; [L565] size_t len; [L566] EXPR find++ [L566] EXPR c = *find++ [L566] COND TRUE (c = *find++) != 0 [L567] CALL, EXPR cstrlen(find) [L543] const char *s; [L544] s = str [L544] EXPR, FCALL \read(*s) [L544] COND FALSE !(*s) [L546] RET return (s - str); [L567] EXPR cstrlen(find) [L567] len = cstrlen(find) [L570] EXPR s++ [L570] EXPR sc = *s++ [L570] COND FALSE !((sc = *s++) == 0) [L572] COND FALSE !(sc != c) [L573] CALL cstrncmp(s, find, len) [L551] COND FALSE !(n == 0) [L554] FCALL \read(*s1) [L554] s2++ - 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: [L579] int length1 = __VERIFIER_nondet_int(); [L580] int length2 = __VERIFIER_nondet_int(); [L581] COND TRUE length1 < 1 [L582] length1 = 1 [L584] COND TRUE length2 < 1 [L585] length2 = 1 [L587] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L587] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L588] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L588] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L589] FCALL nondetString1[length1-1] = '\0' [L590] FCALL nondetString2[length2-1] = '\0' [L591] CALL cstrstr(nondetString1,nondetString2) [L564] char c, sc; [L565] size_t len; [L566] EXPR find++ [L566] EXPR c = *find++ [L566] COND TRUE (c = *find++) != 0 [L567] CALL, EXPR cstrlen(find) [L543] const char *s; [L544] s = str [L544] EXPR, FCALL \read(*s) [L544] COND FALSE !(*s) [L546] RET return (s - str); [L567] EXPR cstrlen(find) [L567] len = cstrlen(find) [L570] EXPR s++ [L570] EXPR sc = *s++ [L570] COND FALSE !((sc = *s++) == 0) [L572] COND FALSE !(sc != c) [L573] CALL cstrncmp(s, find, len) [L551] COND FALSE !(n == 0) [L554] EXPR, FCALL \read(*s1) [L554] EXPR s2++ [L554] COND FALSE !(*s1 != *s2++) [L556] 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: [L579] int length1 = __VERIFIER_nondet_int(); [L580] int length2 = __VERIFIER_nondet_int(); [L581] COND TRUE length1 < 1 [L582] length1 = 1 [L584] COND TRUE length2 < 1 [L585] length2 = 1 [L587] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L587] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L588] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L588] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L589] FCALL nondetString1[length1-1] = '\0' [L590] FCALL nondetString2[length2-1] = '\0' [L591] CALL cstrstr(nondetString1,nondetString2) [L564] char c, sc; [L565] size_t len; [L566] EXPR find++ [L566] EXPR c = *find++ [L566] COND TRUE (c = *find++) != 0 [L567] CALL, EXPR cstrlen(find) [L543] const char *s; [L544] s = str [L544] EXPR, FCALL \read(*s) [L544] COND FALSE !(*s) [L546] RET return (s - str); [L567] EXPR cstrlen(find) [L567] len = cstrlen(find) [L570] EXPR s++ [L570] EXPR sc = *s++ [L570] COND FALSE !((sc = *s++) == 0) [L572] COND FALSE !(sc != c) [L573] CALL cstrncmp(s, find, len) [L551] COND FALSE !(n == 0) [L554] EXPR, FCALL \read(*s1) [L554] EXPR s2++ [L554] COND TRUE *s1 != *s2++ [L555] FCALL \read(*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: [L579] int length1 = __VERIFIER_nondet_int(); [L580] int length2 = __VERIFIER_nondet_int(); [L581] COND TRUE length1 < 1 [L582] length1 = 1 [L584] COND TRUE length2 < 1 [L585] length2 = 1 [L587] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L587] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L588] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L588] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L589] FCALL nondetString1[length1-1] = '\0' [L590] FCALL nondetString2[length2-1] = '\0' [L591] CALL cstrstr(nondetString1,nondetString2) [L564] char c, sc; [L565] size_t len; [L566] EXPR find++ [L566] EXPR c = *find++ [L566] COND TRUE (c = *find++) != 0 [L567] CALL, EXPR cstrlen(find) [L543] const char *s; [L544] s = str [L544] EXPR, FCALL \read(*s) [L544] COND FALSE !(*s) [L546] RET return (s - str); [L567] EXPR cstrlen(find) [L567] len = cstrlen(find) [L570] EXPR s++ [L570] EXPR sc = *s++ [L570] COND FALSE !((sc = *s++) == 0) [L572] COND FALSE !(sc != c) [L573] CALL cstrncmp(s, find, len) [L551] COND FALSE !(n == 0) [L554] EXPR, FCALL \read(*s1) [L554] EXPR s2++ [L554] COND TRUE *s1 != *s2++ [L555] FCALL \read(*s1) [L555] --s2 - 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]: 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_cstrstr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-22-49-345.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-22-49-345.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrstr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-22-49-345.csv Received shutdown request...