/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/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:20:48,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:20:48,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:20:48,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:20:48,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:20:48,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:20:48,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:20:48,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:20:48,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:20:48,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:20:48,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:20:48,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:20:48,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:20:48,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:20:48,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:20:48,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:20:48,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:20:48,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:20:48,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:20:48,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:20:48,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:20:48,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:20:48,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:20:48,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:20:48,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 17:20:48,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 17:20:48,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 17:20:48,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 17:20:48,630 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 17:20:48,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 17:20:48,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:20:48,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:20:48,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:20:48,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:20:48,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:20:48,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:20:48,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:20:48,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:20:48,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:20:48,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:20:48,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:20:48,651 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 17:20:48,722 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:20:48,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:20:48,724 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:20:48,724 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:20:48,726 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:20:48,727 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:20:48,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:20:48,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:20:48,731 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:20:48,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:20:48,733 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:20:48,733 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:20:48,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:20:48,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:20:48,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:20:48,734 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:20:48,735 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:20:48,735 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:20:48,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:20:48,735 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:20:48,736 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:20:48,736 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:20:48,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:20:48,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:20:48,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:20:48,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:20:48,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:20:48,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:20:48,738 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:20:48,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:20:48,738 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:20:49,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:20:49,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:20:49,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:20:49,359 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:20:49,360 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:20:49,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2022-10-15 17:20:49,478 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/315ca2d74/6fa39c4595ef48cb9c4e5ef23b7a2853/FLAG638865e6e [2022-10-15 17:20:50,215 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:20:50,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2022-10-15 17:20:50,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/315ca2d74/6fa39c4595ef48cb9c4e5ef23b7a2853/FLAG638865e6e [2022-10-15 17:20:50,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/315ca2d74/6fa39c4595ef48cb9c4e5ef23b7a2853 [2022-10-15 17:20:50,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:20:50,538 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:20:50,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:20:50,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:20:50,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:20:50,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:20:50" (1/1) ... [2022-10-15 17:20:50,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7687a0d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:50, skipping insertion in model container [2022-10-15 17:20:50,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:20:50" (1/1) ... [2022-10-15 17:20:50,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:20:50,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:20:51,023 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/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c[12639,12652] [2022-10-15 17:20:51,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:20:51,042 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:20:51,146 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/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c[12639,12652] [2022-10-15 17:20:51,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:20:51,192 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:20:51,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:51 WrapperNode [2022-10-15 17:20:51,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:20:51,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:20:51,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:20:51,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:20:51,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:51" (1/1) ... [2022-10-15 17:20:51,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:51" (1/1) ... [2022-10-15 17:20:51,334 INFO L138 Inliner]: procedures = 24, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 384 [2022-10-15 17:20:51,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:20:51,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:20:51,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:20:51,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:20:51,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:51" (1/1) ... [2022-10-15 17:20:51,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:51" (1/1) ... [2022-10-15 17:20:51,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:51" (1/1) ... [2022-10-15 17:20:51,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:51" (1/1) ... [2022-10-15 17:20:51,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:51" (1/1) ... [2022-10-15 17:20:51,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:51" (1/1) ... [2022-10-15 17:20:51,424 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:51" (1/1) ... [2022-10-15 17:20:51,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:51" (1/1) ... [2022-10-15 17:20:51,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:20:51,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:20:51,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:20:51,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:20:51,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:51" (1/1) ... [2022-10-15 17:20:51,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:20:51,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:20:51,498 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 17:20:51,516 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 17:20:51,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:20:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:20:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:20:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:20:51,805 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:20:51,810 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:20:52,560 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:20:52,570 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:20:52,571 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 17:20:52,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:20:52 BoogieIcfgContainer [2022-10-15 17:20:52,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:20:52,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:20:52,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:20:52,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:20:52,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:20:50" (1/3) ... [2022-10-15 17:20:52,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b110a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:20:52, skipping insertion in model container [2022-10-15 17:20:52,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:20:51" (2/3) ... [2022-10-15 17:20:52,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b110a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:20:52, skipping insertion in model container [2022-10-15 17:20:52,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:20:52" (3/3) ... [2022-10-15 17:20:52,585 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2022-10-15 17:20:52,613 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:20:52,613 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:20:52,701 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:20:52,711 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;@5e75d662, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:20:52,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:20:52,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 117 states have (on average 1.7179487179487178) internal successors, (201), 119 states have internal predecessors, (201), 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 17:20:52,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:20:52,729 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:52,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:20:52,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:52,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:52,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1256412175, now seen corresponding path program 1 times [2022-10-15 17:20:52,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:52,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871992185] [2022-10-15 17:20:52,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:52,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:53,000 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 17:20:53,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:53,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871992185] [2022-10-15 17:20:53,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871992185] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:53,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:53,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:20:53,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24224930] [2022-10-15 17:20:53,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:53,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 17:20:53,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:53,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 17:20:53,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:20:53,068 INFO L87 Difference]: Start difference. First operand has 120 states, 117 states have (on average 1.7179487179487178) internal successors, (201), 119 states have internal predecessors, (201), 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 5.0) internal successors, (10), 2 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 17:20:53,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:53,102 INFO L93 Difference]: Finished difference Result 120 states and 198 transitions. [2022-10-15 17:20:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 17:20:53,106 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 17:20:53,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:53,121 INFO L225 Difference]: With dead ends: 120 [2022-10-15 17:20:53,121 INFO L226 Difference]: Without dead ends: 118 [2022-10-15 17:20:53,125 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 17:20:53,131 INFO L413 NwaCegarLoop]: 198 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, 198 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 17:20:53,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:53,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-10-15 17:20:53,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-10-15 17:20:53,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 116 states have (on average 1.6896551724137931) internal successors, (196), 117 states have internal predecessors, (196), 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 17:20:53,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 196 transitions. [2022-10-15 17:20:53,196 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 196 transitions. Word has length 10 [2022-10-15 17:20:53,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:53,197 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 196 transitions. [2022-10-15 17:20:53,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 17:20:53,197 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 196 transitions. [2022-10-15 17:20:53,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 17:20:53,198 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:53,198 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:20:53,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:20:53,199 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:53,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:53,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1254565133, now seen corresponding path program 1 times [2022-10-15 17:20:53,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:53,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532027502] [2022-10-15 17:20:53,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:53,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:53,556 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 17:20:53,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:53,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532027502] [2022-10-15 17:20:53,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532027502] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:53,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:53,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:20:53,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906330913] [2022-10-15 17:20:53,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:53,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:20:53,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:53,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:20:53,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:20:53,568 INFO L87 Difference]: Start difference. First operand 118 states and 196 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 17:20:53,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:53,730 INFO L93 Difference]: Finished difference Result 121 states and 198 transitions. [2022-10-15 17:20:53,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:20:53,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 17:20:53,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:53,733 INFO L225 Difference]: With dead ends: 121 [2022-10-15 17:20:53,733 INFO L226 Difference]: Without dead ends: 118 [2022-10-15 17:20:53,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:20:53,736 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 3 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:53,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 741 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:20:53,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-10-15 17:20:53,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-10-15 17:20:53,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 116 states have (on average 1.4137931034482758) internal successors, (164), 117 states have internal predecessors, (164), 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 17:20:53,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 164 transitions. [2022-10-15 17:20:53,753 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 164 transitions. Word has length 10 [2022-10-15 17:20:53,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:53,753 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 164 transitions. [2022-10-15 17:20:53,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 17:20:53,754 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 164 transitions. [2022-10-15 17:20:53,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-15 17:20:53,756 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:53,757 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:53,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:20:53,757 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:53,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:53,759 INFO L85 PathProgramCache]: Analyzing trace with hash -977810242, now seen corresponding path program 1 times [2022-10-15 17:20:53,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:53,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316555744] [2022-10-15 17:20:53,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:53,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:54,002 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 17:20:54,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:54,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316555744] [2022-10-15 17:20:54,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316555744] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:54,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:54,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:54,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74571863] [2022-10-15 17:20:54,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:54,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:54,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:54,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:54,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:54,007 INFO L87 Difference]: Start difference. First operand 118 states and 164 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 17:20:54,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:54,040 INFO L93 Difference]: Finished difference Result 195 states and 287 transitions. [2022-10-15 17:20:54,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:54,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2022-10-15 17:20:54,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:54,044 INFO L225 Difference]: With dead ends: 195 [2022-10-15 17:20:54,045 INFO L226 Difference]: Without dead ends: 195 [2022-10-15 17:20:54,045 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 17:20:54,047 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 122 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:54,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 320 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:54,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-10-15 17:20:54,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 119. [2022-10-15 17:20:54,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 117 states have (on average 1.4102564102564104) internal successors, (165), 118 states have internal predecessors, (165), 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 17:20:54,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 165 transitions. [2022-10-15 17:20:54,065 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 165 transitions. Word has length 41 [2022-10-15 17:20:54,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:54,065 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 165 transitions. [2022-10-15 17:20:54,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 17:20:54,066 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 165 transitions. [2022-10-15 17:20:54,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-15 17:20:54,069 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:54,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:54,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:20:54,070 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:54,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:54,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1143227198, now seen corresponding path program 1 times [2022-10-15 17:20:54,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:54,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141607207] [2022-10-15 17:20:54,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:54,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:54,346 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 17:20:54,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:54,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141607207] [2022-10-15 17:20:54,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141607207] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:54,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:54,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:54,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196101451] [2022-10-15 17:20:54,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:54,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:54,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:54,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:54,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:54,356 INFO L87 Difference]: Start difference. First operand 119 states and 165 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 17:20:54,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:54,406 INFO L93 Difference]: Finished difference Result 187 states and 270 transitions. [2022-10-15 17:20:54,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:54,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2022-10-15 17:20:54,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:54,409 INFO L225 Difference]: With dead ends: 187 [2022-10-15 17:20:54,409 INFO L226 Difference]: Without dead ends: 187 [2022-10-15 17:20:54,410 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 17:20:54,412 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 110 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:54,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 369 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:54,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-10-15 17:20:54,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 182. [2022-10-15 17:20:54,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 180 states have (on average 1.4833333333333334) internal successors, (267), 181 states have internal predecessors, (267), 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 17:20:54,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 267 transitions. [2022-10-15 17:20:54,434 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 267 transitions. Word has length 64 [2022-10-15 17:20:54,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:54,435 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 267 transitions. [2022-10-15 17:20:54,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 17:20:54,435 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 267 transitions. [2022-10-15 17:20:54,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:20:54,438 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:54,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:54,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:20:54,439 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:54,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:54,440 INFO L85 PathProgramCache]: Analyzing trace with hash -969420354, now seen corresponding path program 1 times [2022-10-15 17:20:54,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:54,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027207354] [2022-10-15 17:20:54,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:54,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:54,596 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 17:20:54,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:54,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027207354] [2022-10-15 17:20:54,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027207354] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:54,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:54,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:54,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482339739] [2022-10-15 17:20:54,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:54,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:54,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:54,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:54,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:54,605 INFO L87 Difference]: Start difference. First operand 182 states and 267 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 17:20:54,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:54,635 INFO L93 Difference]: Finished difference Result 301 states and 453 transitions. [2022-10-15 17:20:54,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:54,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2022-10-15 17:20:54,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:54,645 INFO L225 Difference]: With dead ends: 301 [2022-10-15 17:20:54,646 INFO L226 Difference]: Without dead ends: 301 [2022-10-15 17:20:54,646 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 17:20:54,657 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 105 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:54,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 360 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:54,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-10-15 17:20:54,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 296. [2022-10-15 17:20:54,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 294 states have (on average 1.530612244897959) internal successors, (450), 295 states have internal predecessors, (450), 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 17:20:54,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 450 transitions. [2022-10-15 17:20:54,711 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 450 transitions. Word has length 65 [2022-10-15 17:20:54,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:54,711 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 450 transitions. [2022-10-15 17:20:54,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 17:20:54,715 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 450 transitions. [2022-10-15 17:20:54,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-15 17:20:54,720 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:54,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:54,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:20:54,721 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:54,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:54,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1280140338, now seen corresponding path program 1 times [2022-10-15 17:20:54,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:54,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500721673] [2022-10-15 17:20:54,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:54,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:54,830 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 17:20:54,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:54,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500721673] [2022-10-15 17:20:54,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500721673] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:54,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:54,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:54,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984914542] [2022-10-15 17:20:54,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:54,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:54,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:54,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:54,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:54,834 INFO L87 Difference]: Start difference. First operand 296 states and 450 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 17:20:54,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:54,857 INFO L93 Difference]: Finished difference Result 505 states and 777 transitions. [2022-10-15 17:20:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:54,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2022-10-15 17:20:54,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:54,862 INFO L225 Difference]: With dead ends: 505 [2022-10-15 17:20:54,862 INFO L226 Difference]: Without dead ends: 505 [2022-10-15 17:20:54,863 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 17:20:54,864 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 100 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:54,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 351 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:54,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-10-15 17:20:54,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 500. [2022-10-15 17:20:54,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 498 states have (on average 1.5542168674698795) internal successors, (774), 499 states have internal predecessors, (774), 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 17:20:54,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 774 transitions. [2022-10-15 17:20:54,883 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 774 transitions. Word has length 66 [2022-10-15 17:20:54,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:54,884 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 774 transitions. [2022-10-15 17:20:54,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 17:20:54,885 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 774 transitions. [2022-10-15 17:20:54,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-15 17:20:54,886 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:54,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:54,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:20:54,887 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:54,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:54,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1226283954, now seen corresponding path program 1 times [2022-10-15 17:20:54,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:54,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835975474] [2022-10-15 17:20:54,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:54,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:55,029 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 17:20:55,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:55,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835975474] [2022-10-15 17:20:55,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835975474] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:55,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:55,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:55,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203148506] [2022-10-15 17:20:55,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:55,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:55,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:55,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:55,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:55,034 INFO L87 Difference]: Start difference. First operand 500 states and 774 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 17:20:55,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:55,059 INFO L93 Difference]: Finished difference Result 865 states and 1341 transitions. [2022-10-15 17:20:55,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:55,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2022-10-15 17:20:55,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:55,067 INFO L225 Difference]: With dead ends: 865 [2022-10-15 17:20:55,068 INFO L226 Difference]: Without dead ends: 865 [2022-10-15 17:20:55,068 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 17:20:55,069 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 95 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:55,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 342 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:55,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2022-10-15 17:20:55,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 860. [2022-10-15 17:20:55,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 860 states, 858 states have (on average 1.5594405594405594) internal successors, (1338), 859 states have internal predecessors, (1338), 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 17:20:55,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1338 transitions. [2022-10-15 17:20:55,098 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1338 transitions. Word has length 67 [2022-10-15 17:20:55,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:55,099 INFO L495 AbstractCegarLoop]: Abstraction has 860 states and 1338 transitions. [2022-10-15 17:20:55,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 17:20:55,100 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1338 transitions. [2022-10-15 17:20:55,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-15 17:20:55,101 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:55,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:55,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:20:55,102 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:55,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:55,102 INFO L85 PathProgramCache]: Analyzing trace with hash 211928158, now seen corresponding path program 1 times [2022-10-15 17:20:55,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:55,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694567695] [2022-10-15 17:20:55,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:55,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:55,366 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 17:20:55,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:55,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694567695] [2022-10-15 17:20:55,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694567695] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:55,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:55,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:20:55,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039265837] [2022-10-15 17:20:55,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:55,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:20:55,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:55,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:20:55,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:20:55,370 INFO L87 Difference]: Start difference. First operand 860 states and 1338 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 17:20:55,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:55,578 INFO L93 Difference]: Finished difference Result 4965 states and 7801 transitions. [2022-10-15 17:20:55,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:20:55,579 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 68 [2022-10-15 17:20:55,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:55,611 INFO L225 Difference]: With dead ends: 4965 [2022-10-15 17:20:55,612 INFO L226 Difference]: Without dead ends: 4965 [2022-10-15 17:20:55,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:20:55,614 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 1293 mSDsluCounter, 1685 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 1847 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:55,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 1847 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:20:55,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4965 states. [2022-10-15 17:20:55,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4965 to 1676. [2022-10-15 17:20:55,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1676 states, 1674 states have (on average 1.5543608124253285) internal successors, (2602), 1675 states have internal predecessors, (2602), 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 17:20:55,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2602 transitions. [2022-10-15 17:20:55,719 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2602 transitions. Word has length 68 [2022-10-15 17:20:55,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:55,720 INFO L495 AbstractCegarLoop]: Abstraction has 1676 states and 2602 transitions. [2022-10-15 17:20:55,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 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 17:20:55,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2602 transitions. [2022-10-15 17:20:55,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-15 17:20:55,722 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:55,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:55,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:20:55,722 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:55,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:55,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1891482376, now seen corresponding path program 1 times [2022-10-15 17:20:55,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:55,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370059705] [2022-10-15 17:20:55,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:55,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:56,071 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 17:20:56,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:56,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370059705] [2022-10-15 17:20:56,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370059705] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:56,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:56,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:20:56,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150646720] [2022-10-15 17:20:56,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:56,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:20:56,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:56,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:20:56,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:20:56,076 INFO L87 Difference]: Start difference. First operand 1676 states and 2602 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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 17:20:56,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:56,320 INFO L93 Difference]: Finished difference Result 7392 states and 11382 transitions. [2022-10-15 17:20:56,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:20:56,321 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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 69 [2022-10-15 17:20:56,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:56,374 INFO L225 Difference]: With dead ends: 7392 [2022-10-15 17:20:56,374 INFO L226 Difference]: Without dead ends: 7392 [2022-10-15 17:20:56,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:20:56,376 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 767 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:56,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 783 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:20:56,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7392 states. [2022-10-15 17:20:56,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7392 to 7372. [2022-10-15 17:20:56,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7372 states, 7370 states have (on average 1.542740841248304) internal successors, (11370), 7371 states have internal predecessors, (11370), 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 17:20:56,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7372 states to 7372 states and 11370 transitions. [2022-10-15 17:20:56,625 INFO L78 Accepts]: Start accepts. Automaton has 7372 states and 11370 transitions. Word has length 69 [2022-10-15 17:20:56,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:56,626 INFO L495 AbstractCegarLoop]: Abstraction has 7372 states and 11370 transitions. [2022-10-15 17:20:56,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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 17:20:56,627 INFO L276 IsEmpty]: Start isEmpty. Operand 7372 states and 11370 transitions. [2022-10-15 17:20:56,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-15 17:20:56,631 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:56,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:56,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:20:56,632 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:56,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:56,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1121612062, now seen corresponding path program 1 times [2022-10-15 17:20:56,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:56,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644034210] [2022-10-15 17:20:56,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:56,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:56,744 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 17:20:56,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:56,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644034210] [2022-10-15 17:20:56,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644034210] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:56,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:56,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:56,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092596002] [2022-10-15 17:20:56,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:56,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:56,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:56,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:56,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:56,748 INFO L87 Difference]: Start difference. First operand 7372 states and 11370 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 17:20:56,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:56,853 INFO L93 Difference]: Finished difference Result 13265 states and 20141 transitions. [2022-10-15 17:20:56,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:56,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69 [2022-10-15 17:20:56,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:56,952 INFO L225 Difference]: With dead ends: 13265 [2022-10-15 17:20:56,952 INFO L226 Difference]: Without dead ends: 13265 [2022-10-15 17:20:56,953 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 17:20:56,955 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 114 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:56,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 393 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:20:56,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13265 states. [2022-10-15 17:20:57,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13265 to 13260. [2022-10-15 17:20:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13260 states, 13258 states have (on average 1.5189319656056721) internal successors, (20138), 13259 states have internal predecessors, (20138), 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 17:20:57,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13260 states to 13260 states and 20138 transitions. [2022-10-15 17:20:57,666 INFO L78 Accepts]: Start accepts. Automaton has 13260 states and 20138 transitions. Word has length 69 [2022-10-15 17:20:57,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:57,666 INFO L495 AbstractCegarLoop]: Abstraction has 13260 states and 20138 transitions. [2022-10-15 17:20:57,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 17:20:57,667 INFO L276 IsEmpty]: Start isEmpty. Operand 13260 states and 20138 transitions. [2022-10-15 17:20:57,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-10-15 17:20:57,673 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:57,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:57,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:20:57,674 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:57,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:57,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1170027667, now seen corresponding path program 1 times [2022-10-15 17:20:57,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:57,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804238355] [2022-10-15 17:20:57,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:57,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:58,192 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 17:20:58,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:58,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804238355] [2022-10-15 17:20:58,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804238355] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:58,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:58,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 17:20:58,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194756667] [2022-10-15 17:20:58,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:58,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:20:58,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:58,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:20:58,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:20:58,198 INFO L87 Difference]: Start difference. First operand 13260 states and 20138 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 17:20:58,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:58,613 INFO L93 Difference]: Finished difference Result 27759 states and 41196 transitions. [2022-10-15 17:20:58,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 17:20:58,614 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 70 [2022-10-15 17:20:58,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:20:58,714 INFO L225 Difference]: With dead ends: 27759 [2022-10-15 17:20:58,715 INFO L226 Difference]: Without dead ends: 27759 [2022-10-15 17:20:58,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-10-15 17:20:58,717 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 921 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:20:58,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 799 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:20:58,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27759 states. [2022-10-15 17:20:59,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27759 to 14220. [2022-10-15 17:20:59,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14220 states, 14218 states have (on average 1.483893655929104) internal successors, (21098), 14219 states have internal predecessors, (21098), 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 17:20:59,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14220 states to 14220 states and 21098 transitions. [2022-10-15 17:20:59,524 INFO L78 Accepts]: Start accepts. Automaton has 14220 states and 21098 transitions. Word has length 70 [2022-10-15 17:20:59,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:20:59,525 INFO L495 AbstractCegarLoop]: Abstraction has 14220 states and 21098 transitions. [2022-10-15 17:20:59,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 17:20:59,526 INFO L276 IsEmpty]: Start isEmpty. Operand 14220 states and 21098 transitions. [2022-10-15 17:20:59,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-15 17:20:59,528 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:20:59,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:59,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:20:59,544 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:20:59,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:20:59,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1963697995, now seen corresponding path program 1 times [2022-10-15 17:20:59,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:20:59,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642808374] [2022-10-15 17:20:59,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:20:59,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:20:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:20:59,676 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 17:20:59,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:20:59,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642808374] [2022-10-15 17:20:59,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642808374] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:20:59,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:20:59,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:20:59,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751898412] [2022-10-15 17:20:59,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:20:59,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:20:59,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:20:59,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:20:59,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:20:59,680 INFO L87 Difference]: Start difference. First operand 14220 states and 21098 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 17:20:59,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:20:59,923 INFO L93 Difference]: Finished difference Result 20194 states and 29822 transitions. [2022-10-15 17:20:59,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:20:59,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2022-10-15 17:20:59,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:00,002 INFO L225 Difference]: With dead ends: 20194 [2022-10-15 17:21:00,003 INFO L226 Difference]: Without dead ends: 20194 [2022-10-15 17:21:00,004 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 17:21:00,005 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 86 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:00,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 287 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:00,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20194 states. [2022-10-15 17:21:00,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20194 to 20189. [2022-10-15 17:21:00,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20189 states, 20187 states have (on average 1.4771387526626047) internal successors, (29819), 20188 states have internal predecessors, (29819), 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 17:21:00,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20189 states to 20189 states and 29819 transitions. [2022-10-15 17:21:00,752 INFO L78 Accepts]: Start accepts. Automaton has 20189 states and 29819 transitions. Word has length 71 [2022-10-15 17:21:00,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:00,752 INFO L495 AbstractCegarLoop]: Abstraction has 20189 states and 29819 transitions. [2022-10-15 17:21:00,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 17:21:00,753 INFO L276 IsEmpty]: Start isEmpty. Operand 20189 states and 29819 transitions. [2022-10-15 17:21:00,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-15 17:21:00,755 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:00,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:21:00,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:21:00,757 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:00,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:00,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1655360606, now seen corresponding path program 1 times [2022-10-15 17:21:00,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:00,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725827751] [2022-10-15 17:21:00,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:00,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:00,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:00,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:00,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725827751] [2022-10-15 17:21:00,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725827751] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:21:00,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676732964] [2022-10-15 17:21:00,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:00,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:21:00,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:21:00,897 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:21:00,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 17:21:01,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:01,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 17:21:01,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:21:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 17:21:01,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:21:01,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676732964] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:01,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:21:01,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-15 17:21:01,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388290103] [2022-10-15 17:21:01,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:01,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:01,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:01,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:01,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:21:01,312 INFO L87 Difference]: Start difference. First operand 20189 states and 29819 transitions. Second operand has 3 states, 2 states have (on average 36.5) internal successors, (73), 3 states have internal predecessors, (73), 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 17:21:01,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:01,423 INFO L93 Difference]: Finished difference Result 20188 states and 29818 transitions. [2022-10-15 17:21:01,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:01,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 36.5) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2022-10-15 17:21:01,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:01,488 INFO L225 Difference]: With dead ends: 20188 [2022-10-15 17:21:01,488 INFO L226 Difference]: Without dead ends: 20186 [2022-10-15 17:21:01,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:21:01,490 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 91 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 163 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 17:21:01,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 163 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:01,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20186 states. [2022-10-15 17:21:02,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20186 to 20186. [2022-10-15 17:21:02,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20186 states, 20185 states have (on average 1.4541986623730494) internal successors, (29353), 20185 states have internal predecessors, (29353), 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 17:21:02,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20186 states to 20186 states and 29353 transitions. [2022-10-15 17:21:02,281 INFO L78 Accepts]: Start accepts. Automaton has 20186 states and 29353 transitions. Word has length 73 [2022-10-15 17:21:02,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:02,281 INFO L495 AbstractCegarLoop]: Abstraction has 20186 states and 29353 transitions. [2022-10-15 17:21:02,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 36.5) internal successors, (73), 3 states have internal predecessors, (73), 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 17:21:02,282 INFO L276 IsEmpty]: Start isEmpty. Operand 20186 states and 29353 transitions. [2022-10-15 17:21:02,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-15 17:21:02,301 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:02,302 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:21:02,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 17:21:02,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-15 17:21:02,517 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:02,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:02,518 INFO L85 PathProgramCache]: Analyzing trace with hash 399762008, now seen corresponding path program 1 times [2022-10-15 17:21:02,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:02,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642430901] [2022-10-15 17:21:02,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:02,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:03,208 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:03,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:03,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642430901] [2022-10-15 17:21:03,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642430901] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:21:03,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925993119] [2022-10-15 17:21:03,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:03,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:21:03,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:21:03,212 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:21:03,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 17:21:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:03,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-15 17:21:03,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:21:03,868 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:21:03,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:21:04,679 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:21:04,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925993119] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:21:04,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:21:04,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 4] total 16 [2022-10-15 17:21:04,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587667654] [2022-10-15 17:21:04,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:21:04,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-15 17:21:04,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:04,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-15 17:21:04,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-10-15 17:21:04,691 INFO L87 Difference]: Start difference. First operand 20186 states and 29353 transitions. Second operand has 16 states, 16 states have (on average 17.5) internal successors, (280), 16 states have internal predecessors, (280), 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 17:21:11,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:11,719 INFO L93 Difference]: Finished difference Result 202927 states and 291091 transitions. [2022-10-15 17:21:11,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-10-15 17:21:11,720 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 17.5) internal successors, (280), 16 states have internal predecessors, (280), 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 98 [2022-10-15 17:21:11,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:12,883 INFO L225 Difference]: With dead ends: 202927 [2022-10-15 17:21:12,884 INFO L226 Difference]: Without dead ends: 202927 [2022-10-15 17:21:12,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4257 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2165, Invalid=8547, Unknown=0, NotChecked=0, Total=10712 [2022-10-15 17:21:12,891 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 6540 mSDsluCounter, 3478 mSDsCounter, 0 mSdLazyCounter, 2633 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6540 SdHoareTripleChecker+Valid, 3863 SdHoareTripleChecker+Invalid, 2812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 2633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:12,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6540 Valid, 3863 Invalid, 2812 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [179 Valid, 2633 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-15 17:21:13,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202927 states. [2022-10-15 17:21:15,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202927 to 108194. [2022-10-15 17:21:16,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108194 states, 108193 states have (on average 1.4453892580850887) internal successors, (156381), 108193 states have internal predecessors, (156381), 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 17:21:17,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108194 states to 108194 states and 156381 transitions. [2022-10-15 17:21:17,007 INFO L78 Accepts]: Start accepts. Automaton has 108194 states and 156381 transitions. Word has length 98 [2022-10-15 17:21:17,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:17,008 INFO L495 AbstractCegarLoop]: Abstraction has 108194 states and 156381 transitions. [2022-10-15 17:21:17,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 17.5) internal successors, (280), 16 states have internal predecessors, (280), 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 17:21:17,008 INFO L276 IsEmpty]: Start isEmpty. Operand 108194 states and 156381 transitions. [2022-10-15 17:21:17,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-15 17:21:17,042 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:17,044 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:21:17,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 17:21:17,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-15 17:21:17,259 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:17,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:17,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1823116810, now seen corresponding path program 1 times [2022-10-15 17:21:17,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:17,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489348329] [2022-10-15 17:21:17,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:17,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:17,375 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:17,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:17,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489348329] [2022-10-15 17:21:17,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489348329] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:17,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:17,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:21:17,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043549816] [2022-10-15 17:21:17,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:17,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:17,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:17,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:17,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:21:17,379 INFO L87 Difference]: Start difference. First operand 108194 states and 156381 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 17:21:18,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:18,246 INFO L93 Difference]: Finished difference Result 161789 states and 231045 transitions. [2022-10-15 17:21:18,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:21:18,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 99 [2022-10-15 17:21:18,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:18,580 INFO L225 Difference]: With dead ends: 161789 [2022-10-15 17:21:18,581 INFO L226 Difference]: Without dead ends: 161789 [2022-10-15 17:21:18,584 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 17:21:18,586 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 83 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:18,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 332 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:21:18,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161789 states. [2022-10-15 17:21:21,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161789 to 154639. [2022-10-15 17:21:21,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154639 states, 154638 states have (on average 1.4312135438896003) internal successors, (221320), 154638 states have internal predecessors, (221320), 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 17:21:22,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154639 states to 154639 states and 221320 transitions. [2022-10-15 17:21:22,809 INFO L78 Accepts]: Start accepts. Automaton has 154639 states and 221320 transitions. Word has length 99 [2022-10-15 17:21:22,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:22,809 INFO L495 AbstractCegarLoop]: Abstraction has 154639 states and 221320 transitions. [2022-10-15 17:21:22,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 17:21:22,809 INFO L276 IsEmpty]: Start isEmpty. Operand 154639 states and 221320 transitions. [2022-10-15 17:21:22,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-15 17:21:22,858 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:22,859 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:21:22,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:21:22,859 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:22,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:22,860 INFO L85 PathProgramCache]: Analyzing trace with hash -925026652, now seen corresponding path program 1 times [2022-10-15 17:21:22,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:22,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469548970] [2022-10-15 17:21:22,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:22,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 17:21:23,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:23,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469548970] [2022-10-15 17:21:23,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469548970] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:23,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:23,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:21:23,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164097285] [2022-10-15 17:21:23,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:23,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:21:23,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:23,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:21:23,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:21:23,116 INFO L87 Difference]: Start difference. First operand 154639 states and 221320 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 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 17:21:26,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:21:26,085 INFO L93 Difference]: Finished difference Result 343469 states and 492217 transitions. [2022-10-15 17:21:26,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:21:26,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 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 99 [2022-10-15 17:21:26,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:21:27,176 INFO L225 Difference]: With dead ends: 343469 [2022-10-15 17:21:27,177 INFO L226 Difference]: Without dead ends: 343469 [2022-10-15 17:21:27,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:21:27,184 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 1213 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:21:27,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 1251 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:21:27,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343469 states. [2022-10-15 17:21:33,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343469 to 221023. [2022-10-15 17:21:33,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221023 states, 221022 states have (on average 1.4290342137886727) internal successors, (315848), 221022 states have internal predecessors, (315848), 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 17:21:34,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221023 states to 221023 states and 315848 transitions. [2022-10-15 17:21:34,402 INFO L78 Accepts]: Start accepts. Automaton has 221023 states and 315848 transitions. Word has length 99 [2022-10-15 17:21:34,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:21:34,403 INFO L495 AbstractCegarLoop]: Abstraction has 221023 states and 315848 transitions. [2022-10-15 17:21:34,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 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 17:21:34,404 INFO L276 IsEmpty]: Start isEmpty. Operand 221023 states and 315848 transitions. [2022-10-15 17:21:34,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-15 17:21:34,449 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:21:34,449 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:21:34,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:21:34,450 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:21:34,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:21:34,451 INFO L85 PathProgramCache]: Analyzing trace with hash -2000209836, now seen corresponding path program 1 times [2022-10-15 17:21:34,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:21:34,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377059773] [2022-10-15 17:21:34,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:21:34,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:21:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:21:34,544 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:21:34,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:21:34,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377059773] [2022-10-15 17:21:34,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377059773] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:21:34,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:21:34,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:21:34,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602359837] [2022-10-15 17:21:34,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:21:34,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:21:34,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:21:34,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:21:34,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:21:34,548 INFO L87 Difference]: Start difference. First operand 221023 states and 315848 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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)