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_cmemset-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 04:07:48,827 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 04:07:48,829 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 04:07:48,844 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 04:07:48,845 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 04:07:48,846 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 04:07:48,847 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 04:07:48,849 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 04:07:48,851 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 04:07:48,852 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 04:07:48,853 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 04:07:48,854 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 04:07:48,855 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 04:07:48,856 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 04:07:48,857 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 04:07:48,860 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 04:07:48,862 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 04:07:48,864 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 04:07:48,866 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 04:07:48,867 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 04:07:48,870 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-25 04:07:48,870 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-25 04:07:48,870 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-25 04:07:48,871 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-25 04:07:48,872 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-25 04:07:48,874 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-25 04:07:48,874 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-25 04:07:48,875 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-25 04:07:48,875 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-25 04:07:48,875 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-25 04:07:48,876 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-25 04:07:48,876 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 04:07:48,884 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 04:07:48,885 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 04:07:48,886 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 04:07:48,886 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 04:07:48,886 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 04:07:48,886 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 04:07:48,886 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-25 04:07:48,886 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 04:07:48,887 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 04:07:48,887 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 04:07:48,887 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 04:07:48,887 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 04:07:48,887 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 04:07:48,888 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 04:07:48,888 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 04:07:48,888 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 04:07:48,888 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 04:07:48,888 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 04:07:48,888 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 04:07:48,888 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 04:07:48,888 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 04:07:48,889 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 04:07:48,889 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 04:07:48,889 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 04:07:48,889 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 04:07:48,890 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 04:07:48,890 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 04:07:48,890 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 04:07:48,890 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 04:07:48,890 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-25 04:07:48,890 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 04:07:48,890 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 04:07:48,891 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 04:07:48,891 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 04:07:48,891 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 04:07:48,926 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 04:07:48,939 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 04:07:48,943 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 04:07:48,945 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 04:07:48,945 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 04:07:48,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i [2018-01-25 04:07:49,221 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 04:07:49,227 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 04:07:49,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 04:07:49,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 04:07:49,233 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 04:07:49,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 04:07:49" (1/1) ... [2018-01-25 04:07:49,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6193682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:07:49, skipping insertion in model container [2018-01-25 04:07:49,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 04:07:49" (1/1) ... [2018-01-25 04:07:49,250 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 04:07:49,287 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 04:07:49,410 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 04:07:49,426 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 04:07:49,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:07:49 WrapperNode [2018-01-25 04:07:49,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 04:07:49,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 04:07:49,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 04:07:49,433 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 04:07:49,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:07:49" (1/1) ... [2018-01-25 04:07:49,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:07:49" (1/1) ... [2018-01-25 04:07:49,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:07:49" (1/1) ... [2018-01-25 04:07:49,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:07:49" (1/1) ... [2018-01-25 04:07:49,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:07:49" (1/1) ... [2018-01-25 04:07:49,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:07:49" (1/1) ... [2018-01-25 04:07:49,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:07:49" (1/1) ... [2018-01-25 04:07:49,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 04:07:49,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 04:07:49,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 04:07:49,467 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 04:07:49,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:07:49" (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 04:07:49,514 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 04:07:49,515 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 04:07:49,515 INFO L136 BoogieDeclarations]: Found implementation of procedure cmemset [2018-01-25 04:07:49,515 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 04:07:49,515 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 04:07:49,515 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 04:07:49,515 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 04:07:49,515 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 04:07:49,515 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 04:07:49,515 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-25 04:07:49,516 INFO L128 BoogieDeclarations]: Found specification of procedure cmemset [2018-01-25 04:07:49,516 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 04:07:49,516 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 04:07:49,516 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 04:07:49,701 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 04:07:49,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 04:07:49 BoogieIcfgContainer [2018-01-25 04:07:49,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 04:07:49,703 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-25 04:07:49,703 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-25 04:07:49,703 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-25 04:07:49,704 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 04:07:49" (1/1) ... [2018-01-25 04:07:49,761 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 04:07:54,584 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-25 04:07:54,603 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-25 04:07:54,607 INFO L268 AbstractInterpreter]: Visited 35 different actions 182 times. Merged at 20 different actions 92 times. Never widened. Found 15 fixpoints after 4 different actions. Largest state had 25 variables. [2018-01-25 04:07:54,609 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-25 04:07:54,611 INFO L168 Benchmark]: Toolchain (without parser) took 5388.64 ms. Allocated memory was 307.2 MB in the beginning and 759.7 MB in the end (delta: 452.5 MB). Free memory was 267.3 MB in the beginning and 635.0 MB in the end (delta: -367.7 MB). Peak memory consumption was 84.8 MB. Max. memory is 5.3 GB. [2018-01-25 04:07:54,611 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 307.2 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 04:07:54,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 204.83 ms. Allocated memory is still 307.2 MB. Free memory was 266.3 MB in the beginning and 256.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-25 04:07:54,612 INFO L168 Benchmark]: Boogie Preprocessor took 33.13 ms. Allocated memory is still 307.2 MB. Free memory was 256.2 MB in the beginning and 255.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 5.3 GB. [2018-01-25 04:07:54,612 INFO L168 Benchmark]: RCFGBuilder took 235.28 ms. Allocated memory is still 307.2 MB. Free memory was 254.2 MB in the beginning and 240.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 5.3 GB. [2018-01-25 04:07:54,613 INFO L168 Benchmark]: Abstract Interpretation took 4907.16 ms. Allocated memory was 307.2 MB in the beginning and 759.7 MB in the end (delta: 452.5 MB). Free memory was 239.6 MB in the beginning and 635.0 MB in the end (delta: -395.3 MB). Peak memory consumption was 57.1 MB. Max. memory is 5.3 GB. [2018-01-25 04:07:54,615 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 307.2 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 204.83 ms. Allocated memory is still 307.2 MB. Free memory was 266.3 MB in the beginning and 256.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.13 ms. Allocated memory is still 307.2 MB. Free memory was 256.2 MB in the beginning and 255.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 235.28 ms. Allocated memory is still 307.2 MB. Free memory was 254.2 MB in the beginning and 240.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 4907.16 ms. Allocated memory was 307.2 MB in the beginning and 759.7 MB in the end (delta: 452.5 MB). Free memory was 239.6 MB in the beginning and 635.0 MB in the end (delta: -395.3 MB). Peak memory consumption was 57.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 29 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 237 LocStat_NO_SUPPORTING_DISEQUALITIES : 22 LocStat_NO_DISJUNCTIONS : -58 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 41 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 60 TransStat_NO_SUPPORTING_DISEQUALITIES : 6 TransStat_NO_DISJUNCTIONS : 41 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 2.506369 RENAME_VARIABLES(MILLISECONDS) : 0.022727 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 1.866002 PROJECTAWAY(MILLISECONDS) : 13.993108 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.086349 DISJOIN(MILLISECONDS) : 0.144189 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.039241 ADD_EQUALITY(MILLISECONDS) : 0.020315 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.012627 #CONJOIN_DISJUNCTIVE : 307 #RENAME_VARIABLES : 712 #UNFREEZE : 0 #CONJOIN : 506 #PROJECTAWAY : 475 #ADD_WEAK_EQUALITY : 6 #DISJOIN : 69 #RENAME_VARIABLES_DISJUNCTIVE : 712 #ADD_EQUALITY : 61 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 5 - 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: [L552] int length = __VERIFIER_nondet_int(); [L553] int n = __VERIFIER_nondet_int(); [L554] int c = __VERIFIER_nondet_int(); [L555] COND TRUE length < 1 [L556] length = 1 [L558] COND FALSE !(n < 1) [L561] EXPR, FCALL __builtin_alloca (n * sizeof(char)) [L561] char* nondetArea = (char*) __builtin_alloca (n * sizeof(char)); [L562] CALL cmemset(nondetArea, c, n) [L543] COND TRUE n != 0 [L544] unsigned char *d = dst; [L546] EXPR d++ [L546] FCALL *d++ = (unsigned char)c - UnprovableResult [Line: 551]: 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: [L552] int length = __VERIFIER_nondet_int(); [L553] int n = __VERIFIER_nondet_int(); [L554] int c = __VERIFIER_nondet_int(); [L555] COND TRUE length < 1 [L556] length = 1 [L558] COND FALSE !(n < 1) [L561] EXPR, FCALL __builtin_alloca (n * sizeof(char)) [L561] char* nondetArea = (char*) __builtin_alloca (n * sizeof(char)); [L562] CALL cmemset(nondetArea, c, n) [L543] COND FALSE !(n != 0) [L549] RET return (dst); [L562] cmemset(nondetArea, c, n) [L563] return 0; - 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_cmemset-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-25_04-07-54-625.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-25_04-07-54-625.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemset-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-25_04-07-54-625.csv Received shutdown request...