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/mempurity-32bit-Automizer_Camel+AI_EQ.epf -i ../../../trunk/examples/svcomp/array-memsafety/count_down_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-47db877 [2018-01-23 15:00:22,406 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-23 15:00:22,408 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-23 15:00:22,423 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-23 15:00:22,424 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-23 15:00:22,425 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-23 15:00:22,426 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-23 15:00:22,428 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-23 15:00:22,430 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-23 15:00:22,431 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-23 15:00:22,432 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-23 15:00:22,432 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-23 15:00:22,433 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-23 15:00:22,435 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-23 15:00:22,436 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-23 15:00:22,438 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-23 15:00:22,440 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-23 15:00:22,443 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-23 15:00:22,444 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-23 15:00:22,445 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-23 15:00:22,448 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-23 15:00:22,455 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ.epf [2018-01-23 15:00:22,463 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-23 15:00:22,464 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-23 15:00:22,465 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-23 15:00:22,465 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-23 15:00:22,465 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-23 15:00:22,465 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-23 15:00:22,465 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-23 15:00:22,466 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-23 15:00:22,466 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-23 15:00:22,466 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-23 15:00:22,466 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-23 15:00:22,466 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-23 15:00:22,466 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-23 15:00:22,467 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-23 15:00:22,467 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-23 15:00:22,467 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-23 15:00:22,467 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-23 15:00:22,467 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-23 15:00:22,467 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-23 15:00:22,467 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-23 15:00:22,468 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-23 15:00:22,468 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-23 15:00:22,468 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-23 15:00:22,468 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-23 15:00:22,468 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-23 15:00:22,468 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-23 15:00:22,469 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-23 15:00:22,469 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-23 15:00:22,469 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-23 15:00:22,469 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-23 15:00:22,469 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-23 15:00:22,469 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-23 15:00:22,469 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-23 15:00:22,470 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-23 15:00:22,470 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-23 15:00:22,470 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-23 15:00:22,470 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-23 15:00:22,506 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-23 15:00:22,517 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-23 15:00:22,521 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-23 15:00:22,522 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-23 15:00:22,523 INFO L276 PluginConnector]: CDTParser initialized [2018-01-23 15:00:22,523 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/count_down_unsafe_false-valid-deref.i [2018-01-23 15:00:22,709 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-23 15:00:22,714 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-23 15:00:22,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-23 15:00:22,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-23 15:00:22,721 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-23 15:00:22,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 03:00:22" (1/1) ... [2018-01-23 15:00:22,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba4cb68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:00:22, skipping insertion in model container [2018-01-23 15:00:22,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 03:00:22" (1/1) ... [2018-01-23 15:00:22,739 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 15:00:22,778 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 15:00:22,905 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 15:00:22,922 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 15:00:22,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:00:22 WrapperNode [2018-01-23 15:00:22,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-23 15:00:22,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-23 15:00:22,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-23 15:00:22,931 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-23 15:00:22,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:00:22" (1/1) ... [2018-01-23 15:00:22,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:00:22" (1/1) ... [2018-01-23 15:00:22,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:00:22" (1/1) ... [2018-01-23 15:00:22,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:00:22" (1/1) ... [2018-01-23 15:00:22,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:00:22" (1/1) ... [2018-01-23 15:00:22,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:00:22" (1/1) ... [2018-01-23 15:00:22,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:00:22" (1/1) ... [2018-01-23 15:00:22,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-23 15:00:22,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-23 15:00:22,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-23 15:00:22,970 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-23 15:00:22,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:00:22" (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 [2018-01-23 15:00:23,024 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-23 15:00:23,025 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-23 15:00:23,025 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-23 15:00:23,025 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-23 15:00:23,025 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-23 15:00:23,025 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-23 15:00:23,025 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-23 15:00:23,025 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-23 15:00:23,025 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-23 15:00:23,026 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-23 15:00:23,026 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-23 15:00:23,026 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-23 15:00:23,213 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-23 15:00:23,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 03:00:23 BoogieIcfgContainer [2018-01-23 15:00:23,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-23 15:00:23,214 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-23 15:00:23,214 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-23 15:00:23,214 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-23 15:00:23,215 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 03:00:23" (1/1) ... [2018-01-23 15:00:23,264 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-23 15:00:47,817 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-23 15:00:47,826 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 15:00:47,853 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 15:00:47,854 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 15:00:47,854 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 15:00:47,860 INFO L268 AbstractInterpreter]: Visited 44 different actions 465 times. Merged at 31 different actions 311 times. Widened at 5 different actions 26 times. Found 51 fixpoints after 9 different actions. Largest state had 26 variables. [2018-01-23 15:00:47,862 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-23 15:00:47,863 INFO L168 Benchmark]: Toolchain (without parser) took 25153.63 ms. Allocated memory was 309.3 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 268.2 MB in the beginning and 1.7 GB in the end (delta: -1.4 GB). Peak memory consumption was 162.1 MB. Max. memory is 5.3 GB. [2018-01-23 15:00:47,864 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 309.3 MB. Free memory is still 274.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-23 15:00:47,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.62 ms. Allocated memory is still 309.3 MB. Free memory was 268.2 MB in the beginning and 258.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-23 15:00:47,864 INFO L168 Benchmark]: Boogie Preprocessor took 38.68 ms. Allocated memory is still 309.3 MB. Free memory was 258.2 MB in the beginning and 256.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-23 15:00:47,864 INFO L168 Benchmark]: RCFGBuilder took 243.58 ms. Allocated memory is still 309.3 MB. Free memory was 256.2 MB in the beginning and 241.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. [2018-01-23 15:00:47,864 INFO L168 Benchmark]: Abstract Interpretation took 24648.48 ms. Allocated memory was 309.3 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 241.2 MB in the beginning and 1.7 GB in the end (delta: -1.5 GB). Peak memory consumption was 135.1 MB. Max. memory is 5.3 GB. [2018-01-23 15:00:47,866 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 309.3 MB. Free memory is still 274.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 215.62 ms. Allocated memory is still 309.3 MB. Free memory was 268.2 MB in the beginning and 258.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 38.68 ms. Allocated memory is still 309.3 MB. Free memory was 258.2 MB in the beginning and 256.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 243.58 ms. Allocated memory is still 309.3 MB. Free memory was 256.2 MB in the beginning and 241.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 24648.48 ms. Allocated memory was 309.3 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 241.2 MB in the beginning and 1.7 GB in the end (delta: -1.5 GB). Peak memory consumption was 135.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 34 LocStat_MAX_WEQGRAPH_SIZE : 3 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 308 LocStat_NO_SUPPORTING_DISEQUALITIES : 45 LocStat_NO_DISJUNCTIONS : -68 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 48 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 49 TransStat_NO_SUPPORTING_DISEQUALITIES : 7 TransStat_NO_DISJUNCTIONS : 46 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 1.838099 RENAME_VARIABLES(MILLISECONDS) : 0.009116 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 1.720311 PROJECTAWAY(MILLISECONDS) : 7.847289 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.044932 DISJOIN(MILLISECONDS) : 0.562290 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.018429 ADD_EQUALITY(MILLISECONDS) : 0.054439 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.004992 #CONJOIN_DISJUNCTIVE : 805 #RENAME_VARIABLES : 1618 #UNFREEZE : 0 #CONJOIN : 893 #PROJECTAWAY : 866 #ADD_WEAK_EQUALITY : 8 #DISJOIN : 161 #RENAME_VARIABLES_DISJUNCTIVE : 1695 #ADD_EQUALITY : 50 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 6 - UnprovableResult [Line: 1]: 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: - UnprovableResult [Line: 1]: 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: [L541] int i, j; [L542] int val; [L543] int length = __VERIFIER_nondet_int(); [L544] COND TRUE length < 1 [L544] length = 1 [L545] EXPR, FCALL __builtin_alloca (length) [L545] int *arr = __builtin_alloca (length); [L546] COND FALSE !(!arr) [L547] i=0 [L547] COND FALSE !(i