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/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_false-valid-memtrack_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 17:22:15,839 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 17:22:15,841 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 17:22:15,856 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 17:22:15,856 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 17:22:15,857 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 17:22:15,858 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 17:22:15,860 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 17:22:15,861 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 17:22:15,862 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 17:22:15,863 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 17:22:15,863 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 17:22:15,864 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 17:22:15,865 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 17:22:15,866 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 17:22:15,869 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 17:22:15,871 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 17:22:15,873 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 17:22:15,874 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 17:22:15,875 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 17:22:15,878 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 17:22:15,883 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 17:22:15,883 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 17:22:15,883 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf [2018-01-24 17:22:15,892 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 17:22:15,892 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 17:22:15,893 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 17:22:15,893 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 17:22:15,893 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 17:22:15,893 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 17:22:15,893 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 17:22:15,894 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 17:22:15,894 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 17:22:15,894 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 17:22:15,894 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 17:22:15,894 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 17:22:15,895 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 17:22:15,895 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 17:22:15,895 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 17:22:15,895 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 17:22:15,895 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 17:22:15,895 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 17:22:15,895 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 17:22:15,896 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 17:22:15,896 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 17:22:15,896 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 17:22:15,896 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 17:22:15,896 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 17:22:15,896 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 17:22:15,897 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 17:22:15,897 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 17:22:15,897 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 17:22:15,897 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 17:22:15,897 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-01-24 17:22:15,897 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 17:22:15,897 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 17:22:15,898 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 17:22:15,898 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-01-24 17:22:15,898 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 17:22:15,898 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 17:22:15,930 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 17:22:15,941 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 17:22:15,944 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 17:22:15,945 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 17:22:15,945 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 17:22:15,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memleaks_test1_false-valid-memtrack_true-termination.i [2018-01-24 17:22:16,120 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 17:22:16,126 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 17:22:16,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 17:22:16,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 17:22:16,132 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 17:22:16,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 05:22:16" (1/1) ... [2018-01-24 17:22:16,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d434187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:22:16, skipping insertion in model container [2018-01-24 17:22:16,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 05:22:16" (1/1) ... [2018-01-24 17:22:16,150 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 17:22:16,196 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 17:22:16,306 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 17:22:16,320 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 17:22:16,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:22:16 WrapperNode [2018-01-24 17:22:16,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 17:22:16,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 17:22:16,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 17:22:16,328 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 17:22:16,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:22:16" (1/1) ... [2018-01-24 17:22:16,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:22:16" (1/1) ... [2018-01-24 17:22:16,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:22:16" (1/1) ... [2018-01-24 17:22:16,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:22:16" (1/1) ... [2018-01-24 17:22:16,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:22:16" (1/1) ... [2018-01-24 17:22:16,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:22:16" (1/1) ... [2018-01-24 17:22:16,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:22:16" (1/1) ... [2018-01-24 17:22:16,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 17:22:16,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 17:22:16,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 17:22:16,358 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 17:22:16,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:22:16" (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 17:22:16,403 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 17:22:16,403 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 17:22:16,403 INFO L136 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-01-24 17:22:16,404 INFO L136 BoogieDeclarations]: Found implementation of procedure entry_point [2018-01-24 17:22:16,404 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 17:22:16,404 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 17:22:16,404 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 17:22:16,404 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 17:22:16,404 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 17:22:16,404 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 17:22:16,404 INFO L128 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-01-24 17:22:16,404 INFO L128 BoogieDeclarations]: Found specification of procedure entry_point [2018-01-24 17:22:16,404 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 17:22:16,404 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 17:22:16,405 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 17:22:16,508 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 17:22:16,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 05:22:16 BoogieIcfgContainer [2018-01-24 17:22:16,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 17:22:16,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 17:22:16,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 17:22:16,531 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 17:22:16,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 05:22:16" (1/3) ... [2018-01-24 17:22:16,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18023f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 05:22:16, skipping insertion in model container [2018-01-24 17:22:16,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 05:22:16" (2/3) ... [2018-01-24 17:22:16,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18023f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 05:22:16, skipping insertion in model container [2018-01-24 17:22:16,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 05:22:16" (3/3) ... [2018-01-24 17:22:16,534 INFO L105 eAbstractionObserver]: Analyzing ICFG memleaks_test1_false-valid-memtrack_true-termination.i [2018-01-24 17:22:16,541 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 17:22:16,546 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-01-24 17:22:16,592 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 17:22:16,592 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 17:22:16,592 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 17:22:16,592 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 17:22:16,592 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 17:22:16,593 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 17:22:16,593 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 17:22:16,593 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 17:22:16,594 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 17:22:16,612 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-01-24 17:22:16,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-24 17:22:16,618 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:22:16,619 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:22:16,619 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0EnsuresViolation]=== [2018-01-24 17:22:16,624 INFO L82 PathProgramCache]: Analyzing trace with hash -2028105177, now seen corresponding path program 1 times [2018-01-24 17:22:16,627 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:22:16,688 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:22:16,688 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:22:16,689 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:22:16,689 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:22:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 17:22:16,742 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 17:22:16,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 17:22:16,835 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 17:22:16,836 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-24 17:22:16,836 INFO L252 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-01-24 17:22:16,839 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-24 17:22:16,854 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-24 17:22:16,854 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 17:22:16,857 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-01-24 17:22:16,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 17:22:16,979 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-01-24 17:22:16,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-24 17:22:16,981 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-01-24 17:22:16,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 17:22:16,989 INFO L225 Difference]: With dead ends: 28 [2018-01-24 17:22:16,989 INFO L226 Difference]: Without dead ends: 18 [2018-01-24 17:22:16,992 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-24 17:22:17,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-01-24 17:22:17,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-01-24 17:22:17,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-01-24 17:22:17,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-01-24 17:22:17,017 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 15 [2018-01-24 17:22:17,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 17:22:17,017 INFO L432 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-01-24 17:22:17,017 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-24 17:22:17,017 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-01-24 17:22:17,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-24 17:22:17,018 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 17:22:17,018 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 17:22:17,018 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0EnsuresViolation]=== [2018-01-24 17:22:17,018 INFO L82 PathProgramCache]: Analyzing trace with hash -636806683, now seen corresponding path program 1 times [2018-01-24 17:22:17,019 INFO L67 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-01-24 17:22:17,020 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:22:17,020 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 17:22:17,020 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 17:22:17,020 INFO L280 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-01-24 17:22:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 17:22:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-24 17:22:17,082 INFO L381 BasicCegarLoop]: Counterexample might be feasible [2018-01-24 17:22:17,094 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 17:22:17,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.01 05:22:17 BoogieIcfgContainer [2018-01-24 17:22:17,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-24 17:22:17,105 INFO L168 Benchmark]: Toolchain (without parser) took 984.23 ms. Allocated memory was 296.2 MB in the beginning and 447.2 MB in the end (delta: 151.0 MB). Free memory was 255.3 MB in the beginning and 410.7 MB in the end (delta: -155.4 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 17:22:17,107 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 296.2 MB. Free memory is still 262.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 17:22:17,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.47 ms. Allocated memory is still 296.2 MB. Free memory was 255.3 MB in the beginning and 243.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 5.3 GB. [2018-01-24 17:22:17,108 INFO L168 Benchmark]: Boogie Preprocessor took 29.02 ms. Allocated memory is still 296.2 MB. Free memory was 243.1 MB in the beginning and 241.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-24 17:22:17,108 INFO L168 Benchmark]: RCFGBuilder took 171.24 ms. Allocated memory is still 296.2 MB. Free memory was 241.1 MB in the beginning and 229.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 5.3 GB. [2018-01-24 17:22:17,109 INFO L168 Benchmark]: TraceAbstraction took 575.06 ms. Allocated memory was 296.2 MB in the beginning and 447.2 MB in the end (delta: 151.0 MB). Free memory was 229.5 MB in the beginning and 410.7 MB in the end (delta: -181.2 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 17:22:17,111 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 296.2 MB. Free memory is still 262.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 201.47 ms. Allocated memory is still 296.2 MB. Free memory was 255.3 MB in the beginning and 243.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.02 ms. Allocated memory is still 296.2 MB. Free memory was 243.1 MB in the beginning and 241.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 171.24 ms. Allocated memory is still 296.2 MB. Free memory was 241.1 MB in the beginning and 229.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 5.3 GB. * TraceAbstraction took 575.06 ms. Allocated memory was 296.2 MB in the beginning and 447.2 MB in the end (delta: 151.0 MB). Free memory was 229.5 MB in the beginning and 410.7 MB in the end (delta: -181.2 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1438]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1438. Possible FailurePath: [L1439] CALL entry_point() [L1435] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4] [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] EXPR, FCALL malloc(size) VAL [\old(size)=4, malloc(size)={6:0}, size=4] [L1074] RET return malloc(size); VAL [\old(size)=4, \result={6:0}, malloc(size)={6:0}, size=4] [L1435] EXPR ldv_malloc(sizeof(int)) VAL [ldv_malloc(sizeof(int))={6:0}] [L1435] RET int *p = (int *)ldv_malloc(sizeof(int)); [L1439] entry_point() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 21 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 2 SDslu, 7 SDs, 0 SdLazy, 11 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 476 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, REUSE_STATISTICS: No data available 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/memleaks_test1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_17-22-17-120.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memleaks_test1_false-valid-memtrack_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Taipan+AI_EQ_imprecise.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-24_17-22-17-120.csv Received shutdown request...