/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/psyco/psyco_net_1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:09:49,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:09:49,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:09:49,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:09:49,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:09:49,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:09:49,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:09:49,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:09:49,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:09:49,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:09:49,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:09:49,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:09:49,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:09:49,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:09:49,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:09:49,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:09:49,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:09:49,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:09:49,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:09:49,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:09:49,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:09:49,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:09:49,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:09:49,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:09:49,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:09:49,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:09:49,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:09:49,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:09:49,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:09:49,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:09:49,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:09:49,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:09:49,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:09:49,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:09:49,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:09:49,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:09:49,771 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 17:09:49,808 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:09:49,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:09:49,809 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:09:49,809 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:09:49,811 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:09:49,811 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:09:49,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:09:49,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:09:49,812 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:09:49,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:09:49,813 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:09:49,814 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:09:49,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:09:49,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:09:49,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:09:49,814 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:09:49,816 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:09:49,816 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:09:49,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:09:49,816 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:09:49,816 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:09:49,817 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:09:49,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:09:49,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:09:49,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:09:49,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:09:49,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:09:49,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:09:49,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:09:49,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:09:49,819 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:09:50,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:09:50,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:09:50,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:09:50,314 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:09:50,315 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:09:50,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_net_1.c [2022-10-15 17:09:50,410 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba85348cb/58f8bff22bf74425befd78ecc663b216/FLAGf374efba6 [2022-10-15 17:09:51,900 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:09:51,901 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_net_1.c [2022-10-15 17:09:52,031 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba85348cb/58f8bff22bf74425befd78ecc663b216/FLAGf374efba6 [2022-10-15 17:09:52,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba85348cb/58f8bff22bf74425befd78ecc663b216 [2022-10-15 17:09:52,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:09:52,404 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:09:52,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:09:52,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:09:52,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:09:52,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:09:52" (1/1) ... [2022-10-15 17:09:52,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f5b5aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:52, skipping insertion in model container [2022-10-15 17:09:52,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:09:52" (1/1) ... [2022-10-15 17:09:52,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:09:52,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:09:54,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_net_1.c[2349407,2349420] [2022-10-15 17:09:54,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:09:54,927 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:09:55,994 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_net_1.c[2349407,2349420] [2022-10-15 17:09:56,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:09:56,052 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:09:56,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:56 WrapperNode [2022-10-15 17:09:56,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:09:56,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:09:56,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:09:56,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:09:56,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:56" (1/1) ... [2022-10-15 17:09:56,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:56" (1/1) ... [2022-10-15 17:09:57,916 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50075 [2022-10-15 17:09:57,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:09:57,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:09:57,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:09:57,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:09:57,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:56" (1/1) ... [2022-10-15 17:09:57,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:56" (1/1) ... [2022-10-15 17:09:58,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:56" (1/1) ... [2022-10-15 17:09:58,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:56" (1/1) ... [2022-10-15 17:09:58,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:56" (1/1) ... [2022-10-15 17:09:58,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:56" (1/1) ... [2022-10-15 17:09:59,147 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:56" (1/1) ... [2022-10-15 17:09:59,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:56" (1/1) ... [2022-10-15 17:09:59,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:09:59,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:09:59,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:09:59,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:09:59,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:56" (1/1) ... [2022-10-15 17:09:59,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:09:59,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:09:59,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 17:09:59,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 17:09:59,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:09:59,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:09:59,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:09:59,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:10:00,342 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:10:00,344 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:10:17,790 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:10:17,875 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:10:17,875 INFO L300 CfgBuilder]: Removed 1130 assume(true) statements. [2022-10-15 17:10:17,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:10:17 BoogieIcfgContainer [2022-10-15 17:10:17,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:10:17,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:10:17,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:10:17,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:10:17,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:09:52" (1/3) ... [2022-10-15 17:10:17,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f48c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:10:17, skipping insertion in model container [2022-10-15 17:10:17,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:09:56" (2/3) ... [2022-10-15 17:10:17,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f48c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:10:17, skipping insertion in model container [2022-10-15 17:10:17,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:10:17" (3/3) ... [2022-10-15 17:10:17,899 INFO L112 eAbstractionObserver]: Analyzing ICFG psyco_net_1.c [2022-10-15 17:10:17,920 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:10:17,920 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:10:18,119 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:10:18,129 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@374d084e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:10:18,129 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:10:18,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 9212 states, 9209 states have (on average 1.9995656423064394) internal successors, (18414), 9211 states have internal predecessors, (18414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:18,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 17:10:18,176 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:10:18,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 17:10:18,178 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:10:18,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:10:18,185 INFO L85 PathProgramCache]: Analyzing trace with hash 76399473, now seen corresponding path program 1 times [2022-10-15 17:10:18,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:10:18,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542045331] [2022-10-15 17:10:18,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:10:18,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:10:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:10:18,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:10:18,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:10:18,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542045331] [2022-10-15 17:10:18,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542045331] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:10:18,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:10:18,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:10:18,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859414112] [2022-10-15 17:10:18,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:10:18,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 17:10:18,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:10:18,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 17:10:18,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:10:18,579 INFO L87 Difference]: Start difference. First operand has 9212 states, 9209 states have (on average 1.9995656423064394) internal successors, (18414), 9211 states have internal predecessors, (18414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:18,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:10:18,893 INFO L93 Difference]: Finished difference Result 8490 states and 14148 transitions. [2022-10-15 17:10:18,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 17:10:18,895 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-15 17:10:18,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:10:18,964 INFO L225 Difference]: With dead ends: 8490 [2022-10-15 17:10:18,964 INFO L226 Difference]: Without dead ends: 8488 [2022-10-15 17:10:18,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:10:18,971 INFO L413 NwaCegarLoop]: 14148 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14148 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:10:18,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14148 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:10:19,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8488 states. [2022-10-15 17:10:19,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8488 to 8488. [2022-10-15 17:10:19,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8488 states, 8486 states have (on average 1.666980909733679) internal successors, (14146), 8487 states have internal predecessors, (14146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:19,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8488 states to 8488 states and 14146 transitions. [2022-10-15 17:10:19,328 INFO L78 Accepts]: Start accepts. Automaton has 8488 states and 14146 transitions. Word has length 5 [2022-10-15 17:10:19,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:10:19,328 INFO L495 AbstractCegarLoop]: Abstraction has 8488 states and 14146 transitions. [2022-10-15 17:10:19,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:19,330 INFO L276 IsEmpty]: Start isEmpty. Operand 8488 states and 14146 transitions. [2022-10-15 17:10:19,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:10:19,331 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:10:19,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:10:19,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:10:19,333 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:10:19,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:10:19,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1422650027, now seen corresponding path program 1 times [2022-10-15 17:10:19,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:10:19,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523360934] [2022-10-15 17:10:19,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:10:19,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:10:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:10:19,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:10:19,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:10:19,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523360934] [2022-10-15 17:10:19,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523360934] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:10:19,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:10:19,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:10:19,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089035861] [2022-10-15 17:10:19,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:10:19,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:10:19,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:10:19,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:10:19,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:10:19,649 INFO L87 Difference]: Start difference. First operand 8488 states and 14146 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:22,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:10:22,708 INFO L93 Difference]: Finished difference Result 8491 states and 14149 transitions. [2022-10-15 17:10:22,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:10:22,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 17:10:22,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:10:22,763 INFO L225 Difference]: With dead ends: 8491 [2022-10-15 17:10:22,763 INFO L226 Difference]: Without dead ends: 8491 [2022-10-15 17:10:22,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:10:22,766 INFO L413 NwaCegarLoop]: 14145 mSDtfsCounter, 4 mSDsluCounter, 11727 mSDsCounter, 0 mSdLazyCounter, 2415 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 25872 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:10:22,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 25872 Invalid, 2416 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2415 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-15 17:10:22,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8491 states. [2022-10-15 17:10:22,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8491 to 8491. [2022-10-15 17:10:22,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8491 states, 8489 states have (on average 1.6667451996701614) internal successors, (14149), 8490 states have internal predecessors, (14149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:23,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8491 states to 8491 states and 14149 transitions. [2022-10-15 17:10:23,002 INFO L78 Accepts]: Start accepts. Automaton has 8491 states and 14149 transitions. Word has length 10 [2022-10-15 17:10:23,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:10:23,004 INFO L495 AbstractCegarLoop]: Abstraction has 8491 states and 14149 transitions. [2022-10-15 17:10:23,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:23,006 INFO L276 IsEmpty]: Start isEmpty. Operand 8491 states and 14149 transitions. [2022-10-15 17:10:23,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 17:10:23,007 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:10:23,008 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:10:23,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:10:23,008 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:10:23,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:10:23,011 INFO L85 PathProgramCache]: Analyzing trace with hash 658080264, now seen corresponding path program 1 times [2022-10-15 17:10:23,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:10:23,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883726190] [2022-10-15 17:10:23,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:10:23,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:10:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:10:23,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:10:23,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:10:23,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883726190] [2022-10-15 17:10:23,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883726190] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:10:23,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:10:23,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:10:23,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608633366] [2022-10-15 17:10:23,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:10:23,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:10:23,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:10:23,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:10:23,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:10:23,295 INFO L87 Difference]: Start difference. First operand 8491 states and 14149 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:26,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:10:26,038 INFO L93 Difference]: Finished difference Result 8497 states and 14154 transitions. [2022-10-15 17:10:26,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:10:26,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-15 17:10:26,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:10:26,086 INFO L225 Difference]: With dead ends: 8497 [2022-10-15 17:10:26,086 INFO L226 Difference]: Without dead ends: 8497 [2022-10-15 17:10:26,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:10:26,088 INFO L413 NwaCegarLoop]: 14144 mSDtfsCounter, 334 mSDsluCounter, 11399 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 25543 SdHoareTripleChecker+Invalid, 2420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:10:26,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 25543 Invalid, 2420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-10-15 17:10:26,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8497 states. [2022-10-15 17:10:26,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8497 to 8495. [2022-10-15 17:10:26,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8495 states, 8493 states have (on average 1.666431178617685) internal successors, (14153), 8494 states have internal predecessors, (14153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:26,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8495 states to 8495 states and 14153 transitions. [2022-10-15 17:10:26,316 INFO L78 Accepts]: Start accepts. Automaton has 8495 states and 14153 transitions. Word has length 15 [2022-10-15 17:10:26,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:10:26,317 INFO L495 AbstractCegarLoop]: Abstraction has 8495 states and 14153 transitions. [2022-10-15 17:10:26,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:26,318 INFO L276 IsEmpty]: Start isEmpty. Operand 8495 states and 14153 transitions. [2022-10-15 17:10:26,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 17:10:26,318 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:10:26,319 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:10:26,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:10:26,319 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:10:26,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:10:26,320 INFO L85 PathProgramCache]: Analyzing trace with hash 505082677, now seen corresponding path program 1 times [2022-10-15 17:10:26,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:10:26,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979048581] [2022-10-15 17:10:26,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:10:26,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:10:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:10:26,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:10:26,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:10:26,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979048581] [2022-10-15 17:10:26,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979048581] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:10:26,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:10:26,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:10:26,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789176856] [2022-10-15 17:10:26,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:10:26,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:10:26,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:10:26,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:10:26,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:10:26,444 INFO L87 Difference]: Start difference. First operand 8495 states and 14153 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:30,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:10:30,682 INFO L93 Difference]: Finished difference Result 8415 states and 13320 transitions. [2022-10-15 17:10:30,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:10:30,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-15 17:10:30,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:10:30,711 INFO L225 Difference]: With dead ends: 8415 [2022-10-15 17:10:30,712 INFO L226 Difference]: Without dead ends: 8415 [2022-10-15 17:10:30,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:10:30,714 INFO L413 NwaCegarLoop]: 10532 mSDtfsCounter, 12013 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2781 mSolverCounterSat, 2001 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12013 SdHoareTripleChecker+Valid, 10533 SdHoareTripleChecker+Invalid, 4782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2001 IncrementalHoareTripleChecker+Valid, 2781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:10:30,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12013 Valid, 10533 Invalid, 4782 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2001 Valid, 2781 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-10-15 17:10:30,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8415 states. [2022-10-15 17:10:30,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8415 to 8415. [2022-10-15 17:10:30,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8415 states, 8413 states have (on average 1.5832639961963628) internal successors, (13320), 8414 states have internal predecessors, (13320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:30,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8415 states to 8415 states and 13320 transitions. [2022-10-15 17:10:30,903 INFO L78 Accepts]: Start accepts. Automaton has 8415 states and 13320 transitions. Word has length 19 [2022-10-15 17:10:30,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:10:30,904 INFO L495 AbstractCegarLoop]: Abstraction has 8415 states and 13320 transitions. [2022-10-15 17:10:30,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:30,904 INFO L276 IsEmpty]: Start isEmpty. Operand 8415 states and 13320 transitions. [2022-10-15 17:10:30,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 17:10:30,905 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:10:30,905 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:10:30,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:10:30,906 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:10:30,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:10:30,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1597993323, now seen corresponding path program 1 times [2022-10-15 17:10:30,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:10:30,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388061769] [2022-10-15 17:10:30,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:10:30,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:10:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:10:31,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:10:31,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:10:31,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388061769] [2022-10-15 17:10:31,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388061769] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:10:31,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:10:31,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:10:31,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155956755] [2022-10-15 17:10:31,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:10:31,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:10:31,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:10:31,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:10:31,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:10:31,020 INFO L87 Difference]: Start difference. First operand 8415 states and 13320 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:35,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:10:35,287 INFO L93 Difference]: Finished difference Result 16827 states and 26596 transitions. [2022-10-15 17:10:35,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:10:35,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-15 17:10:35,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:10:35,334 INFO L225 Difference]: With dead ends: 16827 [2022-10-15 17:10:35,335 INFO L226 Difference]: Without dead ends: 16827 [2022-10-15 17:10:35,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:10:35,336 INFO L413 NwaCegarLoop]: 11772 mSDtfsCounter, 11984 mSDsluCounter, 11729 mSDsCounter, 0 mSdLazyCounter, 2968 mSolverCounterSat, 1452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11984 SdHoareTripleChecker+Valid, 23501 SdHoareTripleChecker+Invalid, 4420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1452 IncrementalHoareTripleChecker+Valid, 2968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-10-15 17:10:35,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11984 Valid, 23501 Invalid, 4420 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1452 Valid, 2968 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-10-15 17:10:35,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16827 states. [2022-10-15 17:10:35,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16827 to 15263. [2022-10-15 17:10:35,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15263 states, 15261 states have (on average 1.6073651792149926) internal successors, (24530), 15262 states have internal predecessors, (24530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:35,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15263 states to 15263 states and 24530 transitions. [2022-10-15 17:10:35,691 INFO L78 Accepts]: Start accepts. Automaton has 15263 states and 24530 transitions. Word has length 23 [2022-10-15 17:10:35,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:10:35,692 INFO L495 AbstractCegarLoop]: Abstraction has 15263 states and 24530 transitions. [2022-10-15 17:10:35,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:35,693 INFO L276 IsEmpty]: Start isEmpty. Operand 15263 states and 24530 transitions. [2022-10-15 17:10:35,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 17:10:35,694 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:10:35,694 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:10:35,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:10:35,695 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:10:35,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:10:35,696 INFO L85 PathProgramCache]: Analyzing trace with hash 2001864453, now seen corresponding path program 1 times [2022-10-15 17:10:35,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:10:35,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247010170] [2022-10-15 17:10:35,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:10:35,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:10:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:10:35,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:10:35,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:10:35,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247010170] [2022-10-15 17:10:35,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247010170] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:10:35,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:10:35,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:10:35,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616941888] [2022-10-15 17:10:35,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:10:35,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:10:35,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:10:35,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:10:35,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:10:35,859 INFO L87 Difference]: Start difference. First operand 15263 states and 24530 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:35,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:10:35,988 INFO L93 Difference]: Finished difference Result 15262 states and 24529 transitions. [2022-10-15 17:10:35,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:10:35,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-15 17:10:35,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:10:36,028 INFO L225 Difference]: With dead ends: 15262 [2022-10-15 17:10:36,028 INFO L226 Difference]: Without dead ends: 14963 [2022-10-15 17:10:36,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:10:36,030 INFO L413 NwaCegarLoop]: 13312 mSDtfsCounter, 13290 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13290 SdHoareTripleChecker+Valid, 13312 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:10:36,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13290 Valid, 13312 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:10:36,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14963 states. [2022-10-15 17:10:36,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14963 to 14963. [2022-10-15 17:10:36,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14963 states, 14962 states have (on average 1.5566100788664616) internal successors, (23290), 14962 states have internal predecessors, (23290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:36,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14963 states to 14963 states and 23290 transitions. [2022-10-15 17:10:36,309 INFO L78 Accepts]: Start accepts. Automaton has 14963 states and 23290 transitions. Word has length 24 [2022-10-15 17:10:36,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:10:36,310 INFO L495 AbstractCegarLoop]: Abstraction has 14963 states and 23290 transitions. [2022-10-15 17:10:36,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:10:36,310 INFO L276 IsEmpty]: Start isEmpty. Operand 14963 states and 23290 transitions. [2022-10-15 17:10:36,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-15 17:10:36,311 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:10:36,311 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:10:36,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:10:36,312 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:10:36,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:10:36,312 INFO L85 PathProgramCache]: Analyzing trace with hash -2046252058, now seen corresponding path program 1 times [2022-10-15 17:10:36,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:10:36,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130053655] [2022-10-15 17:10:36,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:10:36,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:10:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:10:36,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:10:36,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:10:36,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130053655] [2022-10-15 17:10:36,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130053655] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:10:36,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:10:36,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:10:36,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655449804] [2022-10-15 17:10:36,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:10:36,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:10:36,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:10:36,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:10:36,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:10:36,464 INFO L87 Difference]: Start difference. First operand 14963 states and 23290 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)