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_smtcomp.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 04:11:53,500 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 04:11:53,527 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 04:11:53,545 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 04:11:53,545 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 04:11:53,546 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 04:11:53,548 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 04:11:53,549 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 04:11:53,552 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 04:11:53,553 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 04:11:53,554 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 04:11:53,554 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 04:11:53,555 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 04:11:53,556 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 04:11:53,558 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 04:11:53,560 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 04:11:53,563 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 04:11:53,565 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 04:11:53,566 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 04:11:53,567 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 04:11:53,570 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-25 04:11:53,575 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 04:11:53,575 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 04:11:53,575 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_smtcomp.epf [2018-01-25 04:11:53,585 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 04:11:53,585 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 04:11:53,586 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 04:11:53,586 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 04:11:53,586 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 04:11:53,586 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 04:11:53,587 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-25 04:11:53,587 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 04:11:53,587 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 04:11:53,588 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 04:11:53,588 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 04:11:53,588 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 04:11:53,588 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 04:11:53,588 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 04:11:53,588 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 04:11:53,589 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 04:11:53,589 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 04:11:53,589 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 04:11:53,589 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 04:11:53,589 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 04:11:53,590 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 04:11:53,590 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 04:11:53,590 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 04:11:53,590 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 04:11:53,590 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 04:11:53,590 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 04:11:53,591 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 04:11:53,591 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 04:11:53,591 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 04:11:53,591 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-25 04:11:53,591 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 04:11:53,591 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 04:11:53,592 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 04:11:53,592 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 04:11:53,593 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 04:11:53,627 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 04:11:53,640 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 04:11:53,644 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 04:11:53,646 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 04:11:53,646 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 04:11:53,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-01-25 04:11:53,828 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 04:11:53,834 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 04:11:53,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 04:11:53,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 04:11:53,840 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 04:11:53,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 04:11:53" (1/1) ... [2018-01-25 04:11:53,843 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 25.01 04:11:53, skipping insertion in model container [2018-01-25 04:11:53,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 04:11:53" (1/1) ... [2018-01-25 04:11:53,860 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 04:11:53,900 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 04:11:54,013 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 04:11:54,028 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 04:11:54,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:54 WrapperNode [2018-01-25 04:11:54,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 04:11:54,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 04:11:54,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 04:11:54,037 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 04:11:54,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:54" (1/1) ... [2018-01-25 04:11:54,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:54" (1/1) ... [2018-01-25 04:11:54,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:54" (1/1) ... [2018-01-25 04:11:54,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:54" (1/1) ... [2018-01-25 04:11:54,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:54" (1/1) ... [2018-01-25 04:11:54,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:54" (1/1) ... [2018-01-25 04:11:54,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:54" (1/1) ... [2018-01-25 04:11:54,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 04:11:54,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 04:11:54,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 04:11:54,074 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 04:11:54,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:11:54" (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 [2018-01-25 04:11:54,124 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 04:11:54,125 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 04:11:54,125 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrspn [2018-01-25 04:11:54,125 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 04:11:54,125 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 04:11:54,125 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 04:11:54,125 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 04:11:54,125 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 04:11:54,126 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 04:11:54,126 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 04:11:54,126 INFO L128 BoogieDeclarations]: Found specification of procedure cstrspn [2018-01-25 04:11:54,126 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 04:11:54,126 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 04:11:54,126 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 04:11:54,332 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 04:11:54,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 04:11:54 BoogieIcfgContainer [2018-01-25 04:11:54,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 04:11:54,333 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-25 04:11:54,334 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-25 04:11:54,334 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-25 04:11:54,334 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 04:11:54" (1/1) ... [2018-01-25 04:11:54,382 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 04:12:10,856 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-25 04:12:10,877 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-25 04:12:10,881 INFO L268 AbstractInterpreter]: Visited 49 different actions 292 times. Merged at 35 different actions 156 times. Never widened. Found 29 fixpoints after 7 different actions. Largest state had 31 variables. [2018-01-25 04:12:10,883 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-25 04:12:10,884 INFO L168 Benchmark]: Toolchain (without parser) took 17055.21 ms. Allocated memory was 305.1 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 265.0 MB in the beginning and 1.2 GB in the end (delta: -901.0 MB). Peak memory consumption was 208.9 MB. Max. memory is 5.3 GB. [2018-01-25 04:12:10,885 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 305.1 MB. Free memory is still 271.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 04:12:10,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.14 ms. Allocated memory is still 305.1 MB. Free memory was 264.0 MB in the beginning and 253.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 5.3 GB. [2018-01-25 04:12:10,886 INFO L168 Benchmark]: Boogie Preprocessor took 36.65 ms. Allocated memory is still 305.1 MB. Free memory was 253.8 MB in the beginning and 251.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-25 04:12:10,886 INFO L168 Benchmark]: RCFGBuilder took 259.46 ms. Allocated memory is still 305.1 MB. Free memory was 251.8 MB in the beginning and 234.9 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. [2018-01-25 04:12:10,886 INFO L168 Benchmark]: Abstract Interpretation took 16549.86 ms. Allocated memory was 305.1 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 234.9 MB in the beginning and 1.2 GB in the end (delta: -931.2 MB). Peak memory consumption was 178.7 MB. Max. memory is 5.3 GB. [2018-01-25 04:12:10,888 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 305.1 MB. Free memory is still 271.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 201.14 ms. Allocated memory is still 305.1 MB. Free memory was 264.0 MB in the beginning and 253.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 36.65 ms. Allocated memory is still 305.1 MB. Free memory was 253.8 MB in the beginning and 251.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 259.46 ms. Allocated memory is still 305.1 MB. Free memory was 251.8 MB in the beginning and 234.9 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 16549.86 ms. Allocated memory was 305.1 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 234.9 MB in the beginning and 1.2 GB in the end (delta: -931.2 MB). Peak memory consumption was 178.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 40 LocStat_MAX_WEQGRAPH_SIZE : 5 LocStat_MAX_SIZEOF_WEQEDGELABEL : 4 LocStat_NO_SUPPORTING_EQUALITIES : 539 LocStat_NO_SUPPORTING_DISEQUALITIES : 96 LocStat_NO_DISJUNCTIONS : -80 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 55 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 80 TransStat_NO_SUPPORTING_DISEQUALITIES : 11 TransStat_NO_DISJUNCTIONS : 58 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 1.466014 RENAME_VARIABLES(MILLISECONDS) : 0.008944 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.901543 PROJECTAWAY(MILLISECONDS) : 0.615863 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.042298 DISJOIN(MILLISECONDS) : 0.235734 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.018997 ADD_EQUALITY(MILLISECONDS) : 0.022490 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.008480 #CONJOIN_DISJUNCTIVE : 460 #RENAME_VARIABLES : 1010 #UNFREEZE : 0 #CONJOIN : 661 #PROJECTAWAY : 611 #ADD_WEAK_EQUALITY : 11 #DISJOIN : 111 #RENAME_VARIABLES_DISJUNCTIVE : 991 #ADD_EQUALITY : 82 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 9 - 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 FALSE !(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 FALSE !(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 FALSE !(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 cstrspn(nondetString1,nondetString2) [L543] const char *p = s1, *spanp; [L544] char c, sc; [L546] p++ - 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 FALSE !(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 cstrspn(nondetString1,nondetString2) [L543] const char *p = s1, *spanp; [L544] char c, sc; [L546] EXPR p++ [L546] c = *p++ [L547] spanp = s2 [L547] spanp++ - 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 FALSE !(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, EXPR cstrspn(nondetString1,nondetString2) [L543] const char *p = s1, *spanp; [L544] char c, sc; [L546] EXPR p++ [L546] c = *p++ [L547] spanp = s2 [L547] EXPR spanp++ [L547] EXPR sc = *spanp++ [L547] COND FALSE !((sc = *spanp++) != 0) [L550] RET return (p - 1 - s1); [L565] EXPR cstrspn(nondetString1,nondetString2) [L565] return cstrspn(nondetString1,nondetString2); - 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_cstrspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-25_04-12-10-898.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-25_04-12-10-898.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cstrspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-25_04-12-10-898.csv Received shutdown request...