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/ldv-memsafety/memsetNonZero3_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:29:21,916 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:29:21,918 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:29:21,930 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:29:21,931 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:29:21,932 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:29:21,933 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:29:21,935 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:29:21,937 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:29:21,938 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:29:21,938 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:29:21,938 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:29:21,939 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:29:21,940 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:29:21,941 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:29:21,944 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:29:21,946 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:29:21,948 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:29:21,949 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:29:21,951 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:29:21,953 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 16:29:21,958 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:29:21,959 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:29:21,959 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 16:29:21,968 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:29:21,969 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:29:21,970 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:29:21,970 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:29:21,970 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:29:21,970 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:29:21,971 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:29:21,971 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:29:21,971 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:29:21,972 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:29:21,972 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:29:21,972 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:29:21,972 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:29:21,973 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:29:21,973 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:29:21,973 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:29:21,973 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:29:21,973 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:29:21,974 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:29:21,974 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:29:21,974 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:29:21,974 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:29:21,974 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:29:21,975 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:29:21,975 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:29:21,975 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:29:21,975 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:29:21,975 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:29:21,976 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:29:21,976 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 16:29:21,976 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:29:21,976 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:29:21,976 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:29:21,977 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:29:21,977 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:29:22,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:29:22,029 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:29:22,033 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:29:22,035 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:29:22,035 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:29:22,036 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero3_false-valid-deref-write.c [2018-01-24 16:29:22,146 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:29:22,151 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:29:22,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:29:22,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:29:22,157 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:29:22,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:29:22" (1/1) ... [2018-01-24 16:29:22,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e411b75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:22, skipping insertion in model container [2018-01-24 16:29:22,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:29:22" (1/1) ... [2018-01-24 16:29:22,176 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:29:22,190 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:29:22,299 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:29:22,313 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:29:22,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:22 WrapperNode [2018-01-24 16:29:22,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:29:22,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:29:22,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:29:22,319 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:29:22,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:22" (1/1) ... [2018-01-24 16:29:22,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:22" (1/1) ... [2018-01-24 16:29:22,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:22" (1/1) ... [2018-01-24 16:29:22,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:22" (1/1) ... [2018-01-24 16:29:22,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:22" (1/1) ... [2018-01-24 16:29:22,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:22" (1/1) ... [2018-01-24 16:29:22,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:22" (1/1) ... [2018-01-24 16:29:22,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:29:22,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:29:22,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:29:22,350 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:29:22,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:29:22" (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 16:29:22,397 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:29:22,397 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:29:22,397 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:29:22,397 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:29:22,397 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:29:22,397 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 16:29:22,398 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-01-24 16:29:22,398 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-01-24 16:29:22,398 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-01-24 16:29:22,398 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:29:22,398 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:29:22,398 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:29:22,477 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-01-24 16:29:22,527 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:29:22,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:29:22 BoogieIcfgContainer [2018-01-24 16:29:22,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:29:22,528 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 16:29:22,528 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 16:29:22,528 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 16:29:22,529 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:29:22" (1/1) ... [2018-01-24 16:29:22,572 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:29:22,766 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:29:22,782 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2018-01-24 16:29:22,783 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 16:29:22,785 INFO L268 AbstractInterpreter]: Visited 23 different actions 27 times. Merged at 3 different actions 3 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 15 variables. [2018-01-24 16:29:22,788 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 16:29:22,789 INFO L168 Benchmark]: Toolchain (without parser) took 641.91 ms. Allocated memory is still 305.1 MB. Free memory was 266.2 MB in the beginning and 226.3 MB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 5.3 GB. [2018-01-24 16:29:22,790 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 305.1 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:29:22,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.94 ms. Allocated memory is still 305.1 MB. Free memory was 265.2 MB in the beginning and 258.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 5.3 GB. [2018-01-24 16:29:22,791 INFO L168 Benchmark]: Boogie Preprocessor took 29.45 ms. Allocated memory is still 305.1 MB. Free memory was 258.0 MB in the beginning and 256.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 16:29:22,792 INFO L168 Benchmark]: RCFGBuilder took 178.21 ms. Allocated memory is still 305.1 MB. Free memory was 256.0 MB in the beginning and 243.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 5.3 GB. [2018-01-24 16:29:22,793 INFO L168 Benchmark]: Abstract Interpretation took 260.11 ms. Allocated memory is still 305.1 MB. Free memory was 243.4 MB in the beginning and 226.3 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 5.3 GB. [2018-01-24 16:29:22,796 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 271.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 166.94 ms. Allocated memory is still 305.1 MB. Free memory was 265.2 MB in the beginning and 258.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.45 ms. Allocated memory is still 305.1 MB. Free memory was 258.0 MB in the beginning and 256.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 178.21 ms. Allocated memory is still 305.1 MB. Free memory was 256.0 MB in the beginning and 243.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 260.11 ms. Allocated memory is still 305.1 MB. Free memory was 243.4 MB in the beginning and 226.3 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 21 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 138 LocStat_NO_SUPPORTING_DISEQUALITIES : 37 LocStat_NO_DISJUNCTIONS : -42 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 29 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 37 TransStat_NO_SUPPORTING_DISEQUALITIES : 6 TransStat_NO_DISJUNCTIONS : 30 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.057653 RENAME_VARIABLES(MILLISECONDS) : 0.202978 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.003703 PROJECTAWAY(MILLISECONDS) : 0.139000 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.002236 DISJOIN(MILLISECONDS) : 2.612252 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.246636 ADD_EQUALITY(MILLISECONDS) : 0.075626 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.031532 #CONJOIN_DISJUNCTIVE : 39 #RENAME_VARIABLES : 73 #UNFREEZE : 0 #CONJOIN : 71 #PROJECTAWAY : 75 #ADD_WEAK_EQUALITY : 4 #DISJOIN : 1 #RENAME_VARIABLES_DISJUNCTIVE : 72 #ADD_EQUALITY : 37 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 3 - 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: [L26] FCALL struct ppp_comp_stats cstats ; [L27] void *point; [L28] point = (void *)(& cstats) [L29] FCALL memset(point, 10, 81UL) - UnprovableResult [Line: 25]: 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: [L26] FCALL struct ppp_comp_stats cstats ; [L27] void *point; [L28] point = (void *)(& cstats) [L29] FCALL memset(point, 10, 81UL) [L30] return 0; [L30] 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 free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - 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/memsetNonZero3_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-29-22-809.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero3_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-29-22-809.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero3_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-29-22-809.csv Received shutdown request...