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.epf -i ../../../trunk/examples/svcomp/array-memsafety/cstrcspn-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 13:56:11,330 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 13:56:11,332 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 13:56:11,347 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 13:56:11,347 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 13:56:11,348 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 13:56:11,350 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 13:56:11,351 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 13:56:11,353 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 13:56:11,354 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 13:56:11,354 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 13:56:11,354 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 13:56:11,355 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 13:56:11,356 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 13:56:11,357 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 13:56:11,359 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 13:56:11,361 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 13:56:11,363 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 13:56:11,365 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 13:56:11,366 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 13:56:11,369 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 13:56:11,375 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.epf [2018-01-24 13:56:11,385 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 13:56:11,386 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 13:56:11,386 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 13:56:11,387 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 13:56:11,387 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 13:56:11,387 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 13:56:11,387 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 13:56:11,388 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 13:56:11,388 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 13:56:11,388 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 13:56:11,389 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 13:56:11,389 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 13:56:11,389 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 13:56:11,389 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 13:56:11,389 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 13:56:11,390 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 13:56:11,390 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 13:56:11,390 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 13:56:11,390 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 13:56:11,390 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 13:56:11,391 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 13:56:11,391 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 13:56:11,391 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 13:56:11,391 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 13:56:11,391 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 13:56:11,392 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 13:56:11,392 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 13:56:11,392 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 13:56:11,392 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 13:56:11,393 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 13:56:11,393 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 13:56:11,393 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 13:56:11,394 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 13:56:11,394 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 13:56:11,429 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 13:56:11,442 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 13:56:11,446 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 13:56:11,448 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 13:56:11,448 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 13:56:11,449 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrcspn-alloca_true-valid-memsafety_true-termination.i [2018-01-24 13:56:11,635 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 13:56:11,641 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 13:56:11,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 13:56:11,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 13:56:11,648 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 13:56:11,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 01:56:11" (1/1) ... [2018-01-24 13:56:11,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b029a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:11, skipping insertion in model container [2018-01-24 13:56:11,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 01:56:11" (1/1) ... [2018-01-24 13:56:11,669 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 13:56:11,710 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 13:56:11,830 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 13:56:11,846 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 13:56:11,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:11 WrapperNode [2018-01-24 13:56:11,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 13:56:11,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 13:56:11,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 13:56:11,856 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 13:56:11,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:11" (1/1) ... [2018-01-24 13:56:11,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:11" (1/1) ... [2018-01-24 13:56:11,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:11" (1/1) ... [2018-01-24 13:56:11,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:11" (1/1) ... [2018-01-24 13:56:11,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:11" (1/1) ... [2018-01-24 13:56:11,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:11" (1/1) ... [2018-01-24 13:56:11,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:11" (1/1) ... [2018-01-24 13:56:11,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 13:56:11,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 13:56:11,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 13:56:11,888 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 13:56:11,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 01:56:11" (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 13:56:11,939 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 13:56:11,939 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 13:56:11,939 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrcspn [2018-01-24 13:56:11,939 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 13:56:11,939 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 13:56:11,939 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 13:56:11,939 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 13:56:11,940 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 13:56:11,940 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 13:56:11,940 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 13:56:11,940 INFO L128 BoogieDeclarations]: Found specification of procedure cstrcspn [2018-01-24 13:56:11,940 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 13:56:11,940 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 13:56:11,940 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 13:56:12,182 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 13:56:12,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 01:56:12 BoogieIcfgContainer [2018-01-24 13:56:12,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 13:56:12,184 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 13:56:12,184 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 13:56:12,184 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 13:56:12,185 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 01:56:12" (1/1) ... [2018-01-24 13:56:12,228 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 13:56:48,379 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 13:56:48,403 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 13:56:48,405 INFO L268 AbstractInterpreter]: Visited 65 different actions 862 times. Merged at 47 different actions 470 times. Widened at 2 different actions 4 times. Found 108 fixpoints after 15 different actions. Largest state had 34 variables. [2018-01-24 13:56:48,407 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 13:56:48,408 INFO L168 Benchmark]: Toolchain (without parser) took 36772.60 ms. Allocated memory was 296.2 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 255.1 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 293.0 MB. Max. memory is 5.3 GB. [2018-01-24 13:56:48,409 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 296.2 MB. Free memory is still 261.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 13:56:48,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.11 ms. Allocated memory is still 296.2 MB. Free memory was 255.1 MB in the beginning and 245.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-24 13:56:48,409 INFO L168 Benchmark]: Boogie Preprocessor took 32.40 ms. Allocated memory is still 296.2 MB. Free memory was 245.1 MB in the beginning and 243.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 5.3 GB. [2018-01-24 13:56:48,410 INFO L168 Benchmark]: RCFGBuilder took 295.13 ms. Allocated memory is still 296.2 MB. Free memory was 243.0 MB in the beginning and 222.1 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 5.3 GB. [2018-01-24 13:56:48,410 INFO L168 Benchmark]: Abstract Interpretation took 36223.65 ms. Allocated memory was 296.2 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 222.1 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 259.9 MB. Max. memory is 5.3 GB. [2018-01-24 13:56:48,411 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 296.2 MB. Free memory is still 261.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 213.11 ms. Allocated memory is still 296.2 MB. Free memory was 255.1 MB in the beginning and 245.1 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 32.40 ms. Allocated memory is still 296.2 MB. Free memory was 245.1 MB in the beginning and 243.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 5.3 GB. * RCFGBuilder took 295.13 ms. Allocated memory is still 296.2 MB. Free memory was 243.0 MB in the beginning and 222.1 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 36223.65 ms. Allocated memory was 296.2 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 222.1 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 259.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 50 LocStat_MAX_WEQGRAPH_SIZE : 5 LocStat_MAX_SIZEOF_WEQEDGELABEL : 3 LocStat_NO_SUPPORTING_EQUALITIES : 787 LocStat_NO_SUPPORTING_DISEQUALITIES : 142 LocStat_NO_DISJUNCTIONS : -100 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 71 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 98 TransStat_NO_SUPPORTING_DISEQUALITIES : 16 TransStat_NO_DISJUNCTIONS : 78 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 8.656433 RENAME_VARIABLES(MILLISECONDS) : 0.008739 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 7.345967 PROJECTAWAY(MILLISECONDS) : 20.696707 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.060555 DISJOIN(MILLISECONDS) : 0.253012 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.017129 ADD_EQUALITY(MILLISECONDS) : 0.044271 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.033908 #CONJOIN_DISJUNCTIVE : 1397 #RENAME_VARIABLES : 3139 #UNFREEZE : 0 #CONJOIN : 1920 #PROJECTAWAY : 1678 #ADD_WEAK_EQUALITY : 11 #DISJOIN : 296 #RENAME_VARIABLES_DISJUNCTIVE : 2986 #ADD_EQUALITY : 100 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 14 - 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: [L556] int length1 = __VERIFIER_nondet_int(); [L557] int length2 = __VERIFIER_nondet_int(); [L558] COND TRUE length1 < 1 [L559] length1 = 1 [L561] COND TRUE length2 < 1 [L562] length2 = 1 [L564] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L564] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L565] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L565] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L566] 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: [L556] int length1 = __VERIFIER_nondet_int(); [L557] int length2 = __VERIFIER_nondet_int(); [L558] COND TRUE length1 < 1 [L559] length1 = 1 [L561] COND TRUE length2 < 1 [L562] length2 = 1 [L564] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L564] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L565] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L565] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L566] FCALL nondetString1[length1-1] = '\0' [L567] 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: [L556] int length1 = __VERIFIER_nondet_int(); [L557] int length2 = __VERIFIER_nondet_int(); [L558] COND TRUE length1 < 1 [L559] length1 = 1 [L561] COND TRUE length2 < 1 [L562] length2 = 1 [L564] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L564] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L565] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L565] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L566] FCALL nondetString1[length1-1] = '\0' [L567] FCALL nondetString2[length2-1] = '\0' [L568] CALL cstrcspn(nondetString1,nondetString2) [L542] const char *sc1; [L543] const char *s; [L544] int c; [L545] sc1 = s1 [L545] FCALL \read(*sc1) - 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: [L556] int length1 = __VERIFIER_nondet_int(); [L557] int length2 = __VERIFIER_nondet_int(); [L558] COND TRUE length1 < 1 [L559] length1 = 1 [L561] COND TRUE length2 < 1 [L562] length2 = 1 [L564] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L564] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L565] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L565] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L566] FCALL nondetString1[length1-1] = '\0' [L567] FCALL nondetString2[length2-1] = '\0' [L568] CALL cstrcspn(nondetString1,nondetString2) [L542] const char *sc1; [L543] const char *s; [L544] int c; [L545] sc1 = s1 [L545] EXPR, FCALL \read(*sc1) [L545] COND TRUE *sc1 != '\0' [L546] s = s2 [L547] FCALL \read(*sc1) - 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: [L556] int length1 = __VERIFIER_nondet_int(); [L557] int length2 = __VERIFIER_nondet_int(); [L558] COND TRUE length1 < 1 [L559] length1 = 1 [L561] COND TRUE length2 < 1 [L562] length2 = 1 [L564] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L564] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L565] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L565] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L566] FCALL nondetString1[length1-1] = '\0' [L567] FCALL nondetString2[length2-1] = '\0' [L568] CALL cstrcspn(nondetString1,nondetString2) [L542] const char *sc1; [L543] const char *s; [L544] int c; [L545] sc1 = s1 [L545] EXPR, FCALL \read(*sc1) [L545] COND TRUE *sc1 != '\0' [L546] s = s2 [L547] EXPR, FCALL \read(*sc1) [L547] c = *sc1 [L548] FCALL \read(*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: [L556] int length1 = __VERIFIER_nondet_int(); [L557] int length2 = __VERIFIER_nondet_int(); [L558] COND TRUE length1 < 1 [L559] length1 = 1 [L561] COND TRUE length2 < 1 [L562] length2 = 1 [L564] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L564] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L565] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L565] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L566] FCALL nondetString1[length1-1] = '\0' [L567] FCALL nondetString2[length2-1] = '\0' [L568] CALL cstrcspn(nondetString1,nondetString2) [L542] const char *sc1; [L543] const char *s; [L544] int c; [L545] sc1 = s1 [L545] EXPR, FCALL \read(*sc1) [L545] COND TRUE *sc1 != '\0' [L546] s = s2 [L547] EXPR, FCALL \read(*sc1) [L547] c = *sc1 [L548] EXPR, FCALL \read(*s) [L548] *s != '\0' && *s != (char)c [L548] FCALL \read(*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: [L556] int length1 = __VERIFIER_nondet_int(); [L557] int length2 = __VERIFIER_nondet_int(); [L558] COND TRUE length1 < 1 [L559] length1 = 1 [L561] COND TRUE length2 < 1 [L562] length2 = 1 [L564] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L564] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L565] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L565] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L566] FCALL nondetString1[length1-1] = '\0' [L567] FCALL nondetString2[length2-1] = '\0' [L568] CALL cstrcspn(nondetString1,nondetString2) [L542] const char *sc1; [L543] const char *s; [L544] int c; [L545] sc1 = s1 [L545] EXPR, FCALL \read(*sc1) [L545] COND TRUE *sc1 != '\0' [L546] s = s2 [L547] EXPR, FCALL \read(*sc1) [L547] c = *sc1 [L548] EXPR, FCALL \read(*s) [L548] *s != '\0' && *s != (char)c [L548] COND FALSE !(*s != '\0' && *s != (char)c) [L550] FCALL \read(*s) - UnprovableResult [Line: 555]: 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: [L556] int length1 = __VERIFIER_nondet_int(); [L557] int length2 = __VERIFIER_nondet_int(); [L558] COND TRUE length1 < 1 [L559] length1 = 1 [L561] COND TRUE length2 < 1 [L562] length2 = 1 [L564] EXPR, FCALL __builtin_alloca (length1 * sizeof(char)) [L564] char* nondetString1 = (char*) __builtin_alloca (length1 * sizeof(char)); [L565] EXPR, FCALL __builtin_alloca (length2 * sizeof(char)) [L565] char* nondetString2 = (char*) __builtin_alloca (length2 * sizeof(char)); [L566] FCALL nondetString1[length1-1] = '\0' [L567] FCALL nondetString2[length2-1] = '\0' [L568] CALL, EXPR cstrcspn(nondetString1,nondetString2) [L542] const char *sc1; [L543] const char *s; [L544] int c; [L545] sc1 = s1 [L545] EXPR, FCALL \read(*sc1) [L545] COND FALSE !(*sc1 != '\0') [L553] RET return sc1 - s1; [L568] EXPR cstrcspn(nondetString1,nondetString2) [L568] return cstrcspn(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 - 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/cstrcspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_13-56-48-422.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_13-56-48-422.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcspn-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_13-56-48-422.csv Received shutdown request...