/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-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 03:43:26,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 03:43:26,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 03:43:26,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 03:43:26,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 03:43:26,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 03:43:26,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 03:43:26,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 03:43:26,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 03:43:26,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 03:43:26,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 03:43:26,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 03:43:26,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 03:43:26,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 03:43:26,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 03:43:26,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 03:43:26,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 03:43:26,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 03:43:26,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 03:43:26,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 03:43:26,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 03:43:26,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 03:43:26,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 03:43:26,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 03:43:26,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 03:43:26,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 03:43:26,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 03:43:26,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 03:43:26,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 03:43:26,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 03:43:26,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 03:43:26,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 03:43:26,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 03:43:26,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 03:43:26,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 03:43:26,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 03:43:26,556 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 [2022-10-16 03:43:26,612 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 03:43:26,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 03:43:26,614 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 03:43:26,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 03:43:26,615 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 03:43:26,615 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 03:43:26,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 03:43:26,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 03:43:26,618 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 03:43:26,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 03:43:26,619 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 03:43:26,620 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 03:43:26,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 03:43:26,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 03:43:26,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 03:43:26,620 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 03:43:26,621 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 03:43:26,621 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 03:43:26,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 03:43:26,621 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 03:43:26,621 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 03:43:26,622 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 03:43:26,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 03:43:26,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 03:43:26,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 03:43:26,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 03:43:26,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 03:43:26,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 03:43:26,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 03:43:26,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 03:43:26,624 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 03:43:27,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 03:43:27,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 03:43:27,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 03:43:27,103 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 03:43:27,103 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 03:43:27,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2022-10-16 03:43:27,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdf700479/7b0211c8695a4f70bae7beaae95057e8/FLAG054b3c8c2 [2022-10-16 03:43:27,935 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 03:43:27,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2022-10-16 03:43:27,952 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdf700479/7b0211c8695a4f70bae7beaae95057e8/FLAG054b3c8c2 [2022-10-16 03:43:28,208 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdf700479/7b0211c8695a4f70bae7beaae95057e8 [2022-10-16 03:43:28,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 03:43:28,218 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 03:43:28,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 03:43:28,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 03:43:28,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 03:43:28,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:43:28" (1/1) ... [2022-10-16 03:43:28,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a63953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:28, skipping insertion in model container [2022-10-16 03:43:28,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:43:28" (1/1) ... [2022-10-16 03:43:28,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 03:43:28,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 03:43:28,530 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-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7180,7193] [2022-10-16 03:43:28,551 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-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[9491,9504] [2022-10-16 03:43:28,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 03:43:28,577 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 03:43:28,629 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-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7180,7193] [2022-10-16 03:43:28,642 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-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[9491,9504] [2022-10-16 03:43:28,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 03:43:28,676 INFO L208 MainTranslator]: Completed translation [2022-10-16 03:43:28,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:28 WrapperNode [2022-10-16 03:43:28,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 03:43:28,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 03:43:28,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 03:43:28,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 03:43:28,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:28" (1/1) ... [2022-10-16 03:43:28,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:28" (1/1) ... [2022-10-16 03:43:28,743 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 464 [2022-10-16 03:43:28,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 03:43:28,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 03:43:28,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 03:43:28,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 03:43:28,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:28" (1/1) ... [2022-10-16 03:43:28,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:28" (1/1) ... [2022-10-16 03:43:28,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:28" (1/1) ... [2022-10-16 03:43:28,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:28" (1/1) ... [2022-10-16 03:43:28,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:28" (1/1) ... [2022-10-16 03:43:28,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:28" (1/1) ... [2022-10-16 03:43:28,786 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:28" (1/1) ... [2022-10-16 03:43:28,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:28" (1/1) ... [2022-10-16 03:43:28,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 03:43:28,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 03:43:28,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 03:43:28,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 03:43:28,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:28" (1/1) ... [2022-10-16 03:43:28,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 03:43:28,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:43:28,837 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) [2022-10-16 03:43:28,853 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 [2022-10-16 03:43:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 03:43:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 03:43:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 03:43:28,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 03:43:29,039 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 03:43:29,042 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 03:43:29,643 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 03:43:29,653 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 03:43:29,653 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 03:43:29,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:43:29 BoogieIcfgContainer [2022-10-16 03:43:29,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 03:43:29,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 03:43:29,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 03:43:29,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 03:43:29,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:43:28" (1/3) ... [2022-10-16 03:43:29,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e674fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:43:29, skipping insertion in model container [2022-10-16 03:43:29,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:43:28" (2/3) ... [2022-10-16 03:43:29,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e674fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:43:29, skipping insertion in model container [2022-10-16 03:43:29,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:43:29" (3/3) ... [2022-10-16 03:43:29,667 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2022-10-16 03:43:29,688 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 03:43:29,689 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-10-16 03:43:29,799 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 03:43:29,807 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;@77d309e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 03:43:29,807 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-10-16 03:43:29,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 103 states have (on average 1.766990291262136) internal successors, (182), 106 states have internal predecessors, (182), 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) [2022-10-16 03:43:29,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 03:43:29,821 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:29,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 03:43:29,823 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:29,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:29,829 INFO L85 PathProgramCache]: Analyzing trace with hash 939173, now seen corresponding path program 1 times [2022-10-16 03:43:29,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:29,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064428377] [2022-10-16 03:43:29,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:29,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:30,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:30,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:30,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064428377] [2022-10-16 03:43:30,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064428377] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:30,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:30,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 03:43:30,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234486422] [2022-10-16 03:43:30,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:30,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:43:30,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:30,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:43:30,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:43:30,147 INFO L87 Difference]: Start difference. First operand has 107 states, 103 states have (on average 1.766990291262136) internal successors, (182), 106 states have internal predecessors, (182), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-10-16 03:43:30,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:30,190 INFO L93 Difference]: Finished difference Result 106 states and 179 transitions. [2022-10-16 03:43:30,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:43:30,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-10-16 03:43:30,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:30,205 INFO L225 Difference]: With dead ends: 106 [2022-10-16 03:43:30,205 INFO L226 Difference]: Without dead ends: 103 [2022-10-16 03:43:30,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:43:30,212 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 176 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:30,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 178 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:30,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-10-16 03:43:30,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-10-16 03:43:30,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 101 states have (on average 1.3762376237623761) internal successors, (139), 102 states have internal predecessors, (139), 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) [2022-10-16 03:43:30,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 139 transitions. [2022-10-16 03:43:30,263 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 139 transitions. Word has length 4 [2022-10-16 03:43:30,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:30,263 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 139 transitions. [2022-10-16 03:43:30,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-10-16 03:43:30,264 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 139 transitions. [2022-10-16 03:43:30,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 03:43:30,266 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:30,266 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] [2022-10-16 03:43:30,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 03:43:30,267 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:30,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:30,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1038847250, now seen corresponding path program 1 times [2022-10-16 03:43:30,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:30,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398615347] [2022-10-16 03:43:30,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:30,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:30,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:30,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:30,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398615347] [2022-10-16 03:43:30,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398615347] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:30,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:30,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:43:30,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843110486] [2022-10-16 03:43:30,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:30,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:43:30,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:30,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:43:30,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:43:30,755 INFO L87 Difference]: Start difference. First operand 103 states and 139 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2022-10-16 03:43:30,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:30,922 INFO L93 Difference]: Finished difference Result 353 states and 509 transitions. [2022-10-16 03:43:30,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 03:43:30,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 48 [2022-10-16 03:43:30,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:30,928 INFO L225 Difference]: With dead ends: 353 [2022-10-16 03:43:30,928 INFO L226 Difference]: Without dead ends: 353 [2022-10-16 03:43:30,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 03:43:30,931 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 483 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:30,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 667 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:43:30,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-10-16 03:43:30,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 155. [2022-10-16 03:43:30,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 153 states have (on average 1.4313725490196079) internal successors, (219), 154 states have internal predecessors, (219), 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) [2022-10-16 03:43:30,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 219 transitions. [2022-10-16 03:43:30,955 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 219 transitions. Word has length 48 [2022-10-16 03:43:30,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:30,955 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 219 transitions. [2022-10-16 03:43:30,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2022-10-16 03:43:30,956 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 219 transitions. [2022-10-16 03:43:30,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 03:43:30,957 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:30,958 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] [2022-10-16 03:43:30,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 03:43:30,958 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:30,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:30,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1964840261, now seen corresponding path program 1 times [2022-10-16 03:43:30,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:30,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654070576] [2022-10-16 03:43:30,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:30,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:31,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:31,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:31,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654070576] [2022-10-16 03:43:31,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654070576] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:31,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:31,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:43:31,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528802984] [2022-10-16 03:43:31,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:31,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:43:31,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:31,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:43:31,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:43:31,088 INFO L87 Difference]: Start difference. First operand 155 states and 219 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2022-10-16 03:43:31,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:31,143 INFO L93 Difference]: Finished difference Result 159 states and 221 transitions. [2022-10-16 03:43:31,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:43:31,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2022-10-16 03:43:31,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:31,146 INFO L225 Difference]: With dead ends: 159 [2022-10-16 03:43:31,146 INFO L226 Difference]: Without dead ends: 159 [2022-10-16 03:43:31,146 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 [2022-10-16 03:43:31,148 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 73 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:31,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 301 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:31,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-10-16 03:43:31,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2022-10-16 03:43:31,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 155 states have (on average 1.4193548387096775) internal successors, (220), 156 states have internal predecessors, (220), 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) [2022-10-16 03:43:31,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 220 transitions. [2022-10-16 03:43:31,163 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 220 transitions. Word has length 49 [2022-10-16 03:43:31,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:31,163 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 220 transitions. [2022-10-16 03:43:31,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2022-10-16 03:43:31,164 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 220 transitions. [2022-10-16 03:43:31,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 03:43:31,165 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:31,166 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] [2022-10-16 03:43:31,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 03:43:31,166 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:31,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:31,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1398279763, now seen corresponding path program 1 times [2022-10-16 03:43:31,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:31,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749274795] [2022-10-16 03:43:31,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:31,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:31,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:31,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:31,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749274795] [2022-10-16 03:43:31,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749274795] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:31,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:31,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:43:31,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550469015] [2022-10-16 03:43:31,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:31,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:43:31,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:31,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:43:31,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:43:31,409 INFO L87 Difference]: Start difference. First operand 157 states and 220 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2022-10-16 03:43:31,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:31,521 INFO L93 Difference]: Finished difference Result 388 states and 562 transitions. [2022-10-16 03:43:31,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:43:31,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 50 [2022-10-16 03:43:31,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:31,524 INFO L225 Difference]: With dead ends: 388 [2022-10-16 03:43:31,525 INFO L226 Difference]: Without dead ends: 388 [2022-10-16 03:43:31,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:43:31,527 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 293 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:31,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 598 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:43:31,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-10-16 03:43:31,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 248. [2022-10-16 03:43:31,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 246 states have (on average 1.4593495934959348) internal successors, (359), 247 states have internal predecessors, (359), 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) [2022-10-16 03:43:31,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 359 transitions. [2022-10-16 03:43:31,546 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 359 transitions. Word has length 50 [2022-10-16 03:43:31,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:31,547 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 359 transitions. [2022-10-16 03:43:31,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2022-10-16 03:43:31,548 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 359 transitions. [2022-10-16 03:43:31,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 03:43:31,550 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:31,550 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] [2022-10-16 03:43:31,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 03:43:31,550 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:31,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:31,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1526101883, now seen corresponding path program 1 times [2022-10-16 03:43:31,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:31,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706659968] [2022-10-16 03:43:31,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:31,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:31,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:31,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:31,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706659968] [2022-10-16 03:43:31,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706659968] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:31,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:31,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:43:31,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661975074] [2022-10-16 03:43:31,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:31,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:43:31,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:31,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:43:31,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:43:31,700 INFO L87 Difference]: Start difference. First operand 248 states and 359 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2022-10-16 03:43:31,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:31,794 INFO L93 Difference]: Finished difference Result 474 states and 693 transitions. [2022-10-16 03:43:31,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:43:31,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 50 [2022-10-16 03:43:31,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:31,797 INFO L225 Difference]: With dead ends: 474 [2022-10-16 03:43:31,798 INFO L226 Difference]: Without dead ends: 474 [2022-10-16 03:43:31,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:43:31,800 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 357 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:31,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 537 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:43:31,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-10-16 03:43:31,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 376. [2022-10-16 03:43:31,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 374 states have (on average 1.4786096256684491) internal successors, (553), 375 states have internal predecessors, (553), 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) [2022-10-16 03:43:31,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 553 transitions. [2022-10-16 03:43:31,817 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 553 transitions. Word has length 50 [2022-10-16 03:43:31,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:31,818 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 553 transitions. [2022-10-16 03:43:31,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2022-10-16 03:43:31,818 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 553 transitions. [2022-10-16 03:43:31,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 03:43:31,820 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:31,820 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] [2022-10-16 03:43:31,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 03:43:31,821 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:31,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:31,821 INFO L85 PathProgramCache]: Analyzing trace with hash 2031133031, now seen corresponding path program 1 times [2022-10-16 03:43:31,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:31,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646539844] [2022-10-16 03:43:31,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:31,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:31,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:31,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:31,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646539844] [2022-10-16 03:43:31,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646539844] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:31,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:31,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:43:31,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558573087] [2022-10-16 03:43:31,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:31,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:43:31,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:31,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:43:31,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:43:31,958 INFO L87 Difference]: Start difference. First operand 376 states and 553 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2022-10-16 03:43:32,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:32,053 INFO L93 Difference]: Finished difference Result 565 states and 832 transitions. [2022-10-16 03:43:32,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:43:32,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 50 [2022-10-16 03:43:32,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:32,057 INFO L225 Difference]: With dead ends: 565 [2022-10-16 03:43:32,057 INFO L226 Difference]: Without dead ends: 565 [2022-10-16 03:43:32,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:43:32,059 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 356 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:32,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 571 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:43:32,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-10-16 03:43:32,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 467. [2022-10-16 03:43:32,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4881720430107528) internal successors, (692), 466 states have internal predecessors, (692), 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) [2022-10-16 03:43:32,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 692 transitions. [2022-10-16 03:43:32,075 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 692 transitions. Word has length 50 [2022-10-16 03:43:32,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:32,076 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 692 transitions. [2022-10-16 03:43:32,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2022-10-16 03:43:32,076 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 692 transitions. [2022-10-16 03:43:32,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 03:43:32,078 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:32,078 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] [2022-10-16 03:43:32,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 03:43:32,079 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:32,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:32,079 INFO L85 PathProgramCache]: Analyzing trace with hash 222346276, now seen corresponding path program 1 times [2022-10-16 03:43:32,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:32,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283675982] [2022-10-16 03:43:32,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:32,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:32,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:32,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:32,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283675982] [2022-10-16 03:43:32,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283675982] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:32,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:32,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:43:32,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399408799] [2022-10-16 03:43:32,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:32,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:43:32,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:32,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:43:32,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:43:32,217 INFO L87 Difference]: Start difference. First operand 467 states and 692 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-10-16 03:43:32,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:32,307 INFO L93 Difference]: Finished difference Result 467 states and 682 transitions. [2022-10-16 03:43:32,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:43:32,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 51 [2022-10-16 03:43:32,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:32,310 INFO L225 Difference]: With dead ends: 467 [2022-10-16 03:43:32,311 INFO L226 Difference]: Without dead ends: 467 [2022-10-16 03:43:32,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:43:32,312 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 376 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:32,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 80 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:43:32,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-10-16 03:43:32,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2022-10-16 03:43:32,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4666666666666666) internal successors, (682), 466 states have internal predecessors, (682), 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) [2022-10-16 03:43:32,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 682 transitions. [2022-10-16 03:43:32,326 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 682 transitions. Word has length 51 [2022-10-16 03:43:32,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:32,327 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 682 transitions. [2022-10-16 03:43:32,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-10-16 03:43:32,328 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 682 transitions. [2022-10-16 03:43:32,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 03:43:32,329 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:32,329 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] [2022-10-16 03:43:32,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 03:43:32,329 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:32,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:32,330 INFO L85 PathProgramCache]: Analyzing trace with hash 323435980, now seen corresponding path program 1 times [2022-10-16 03:43:32,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:32,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124640455] [2022-10-16 03:43:32,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:32,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:32,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:32,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:32,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124640455] [2022-10-16 03:43:32,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124640455] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:32,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:32,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:43:32,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051535836] [2022-10-16 03:43:32,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:32,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:43:32,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:32,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:43:32,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:43:32,441 INFO L87 Difference]: Start difference. First operand 467 states and 682 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-10-16 03:43:32,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:32,526 INFO L93 Difference]: Finished difference Result 467 states and 672 transitions. [2022-10-16 03:43:32,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:43:32,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 52 [2022-10-16 03:43:32,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:32,529 INFO L225 Difference]: With dead ends: 467 [2022-10-16 03:43:32,530 INFO L226 Difference]: Without dead ends: 467 [2022-10-16 03:43:32,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:43:32,531 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 358 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:32,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 88 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:43:32,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-10-16 03:43:32,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2022-10-16 03:43:32,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4451612903225806) internal successors, (672), 466 states have internal predecessors, (672), 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) [2022-10-16 03:43:32,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 672 transitions. [2022-10-16 03:43:32,544 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 672 transitions. Word has length 52 [2022-10-16 03:43:32,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:32,545 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 672 transitions. [2022-10-16 03:43:32,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-10-16 03:43:32,545 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 672 transitions. [2022-10-16 03:43:32,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 03:43:32,546 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:32,546 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] [2022-10-16 03:43:32,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 03:43:32,547 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:32,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:32,548 INFO L85 PathProgramCache]: Analyzing trace with hash 549255064, now seen corresponding path program 1 times [2022-10-16 03:43:32,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:32,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092288831] [2022-10-16 03:43:32,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:32,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:32,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:32,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:32,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092288831] [2022-10-16 03:43:32,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092288831] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:32,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:32,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:43:32,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143882109] [2022-10-16 03:43:32,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:32,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:43:32,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:32,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:43:32,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:43:32,660 INFO L87 Difference]: Start difference. First operand 467 states and 672 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-10-16 03:43:32,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:32,742 INFO L93 Difference]: Finished difference Result 467 states and 662 transitions. [2022-10-16 03:43:32,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:43:32,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2022-10-16 03:43:32,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:32,746 INFO L225 Difference]: With dead ends: 467 [2022-10-16 03:43:32,746 INFO L226 Difference]: Without dead ends: 467 [2022-10-16 03:43:32,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 03:43:32,747 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 340 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:32,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 96 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:43:32,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-10-16 03:43:32,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2022-10-16 03:43:32,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4236559139784946) internal successors, (662), 466 states have internal predecessors, (662), 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) [2022-10-16 03:43:32,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 662 transitions. [2022-10-16 03:43:32,760 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 662 transitions. Word has length 53 [2022-10-16 03:43:32,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:32,760 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 662 transitions. [2022-10-16 03:43:32,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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) [2022-10-16 03:43:32,761 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 662 transitions. [2022-10-16 03:43:32,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 03:43:32,762 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:32,762 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] [2022-10-16 03:43:32,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 03:43:32,762 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:32,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:32,763 INFO L85 PathProgramCache]: Analyzing trace with hash -680909608, now seen corresponding path program 1 times [2022-10-16 03:43:32,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:32,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983145828] [2022-10-16 03:43:32,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:32,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:33,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:33,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:33,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983145828] [2022-10-16 03:43:33,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983145828] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:33,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:33,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-16 03:43:33,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094075782] [2022-10-16 03:43:33,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:33,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 03:43:33,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:33,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 03:43:33,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-16 03:43:33,386 INFO L87 Difference]: Start difference. First operand 467 states and 662 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 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) [2022-10-16 03:43:34,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:34,049 INFO L93 Difference]: Finished difference Result 884 states and 1252 transitions. [2022-10-16 03:43:34,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 03:43:34,050 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 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 54 [2022-10-16 03:43:34,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:34,055 INFO L225 Difference]: With dead ends: 884 [2022-10-16 03:43:34,056 INFO L226 Difference]: Without dead ends: 884 [2022-10-16 03:43:34,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-10-16 03:43:34,058 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 1142 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:34,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 314 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 03:43:34,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2022-10-16 03:43:34,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 467. [2022-10-16 03:43:34,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4150537634408602) internal successors, (658), 466 states have internal predecessors, (658), 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) [2022-10-16 03:43:34,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 658 transitions. [2022-10-16 03:43:34,076 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 658 transitions. Word has length 54 [2022-10-16 03:43:34,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:34,077 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 658 transitions. [2022-10-16 03:43:34,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 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) [2022-10-16 03:43:34,077 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 658 transitions. [2022-10-16 03:43:34,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 03:43:34,079 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:34,079 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] [2022-10-16 03:43:34,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 03:43:34,079 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:34,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:34,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1013391184, now seen corresponding path program 1 times [2022-10-16 03:43:34,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:34,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407611756] [2022-10-16 03:43:34,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:34,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:34,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:34,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:34,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407611756] [2022-10-16 03:43:34,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407611756] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:34,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:34,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 03:43:34,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592365620] [2022-10-16 03:43:34,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:34,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 03:43:34,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:34,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 03:43:34,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-16 03:43:34,546 INFO L87 Difference]: Start difference. First operand 467 states and 658 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 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) [2022-10-16 03:43:34,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:34,953 INFO L93 Difference]: Finished difference Result 856 states and 1219 transitions. [2022-10-16 03:43:34,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 03:43:34,954 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 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 54 [2022-10-16 03:43:34,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:34,959 INFO L225 Difference]: With dead ends: 856 [2022-10-16 03:43:34,959 INFO L226 Difference]: Without dead ends: 856 [2022-10-16 03:43:34,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2022-10-16 03:43:34,961 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 973 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:34,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 237 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 03:43:34,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2022-10-16 03:43:34,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 467. [2022-10-16 03:43:34,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4129032258064516) internal successors, (657), 466 states have internal predecessors, (657), 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) [2022-10-16 03:43:34,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 657 transitions. [2022-10-16 03:43:34,978 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 657 transitions. Word has length 54 [2022-10-16 03:43:34,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:34,978 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 657 transitions. [2022-10-16 03:43:34,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 8 states have internal predecessors, (54), 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) [2022-10-16 03:43:34,978 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 657 transitions. [2022-10-16 03:43:34,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 03:43:34,979 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:34,979 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] [2022-10-16 03:43:34,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 03:43:34,980 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:34,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:34,981 INFO L85 PathProgramCache]: Analyzing trace with hash 2026548830, now seen corresponding path program 1 times [2022-10-16 03:43:34,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:34,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884921292] [2022-10-16 03:43:34,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:34,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:35,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:35,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:35,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884921292] [2022-10-16 03:43:35,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884921292] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:35,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:35,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 03:43:35,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631503121] [2022-10-16 03:43:35,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:35,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 03:43:35,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:35,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 03:43:35,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-16 03:43:35,357 INFO L87 Difference]: Start difference. First operand 467 states and 657 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 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) [2022-10-16 03:43:36,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:36,002 INFO L93 Difference]: Finished difference Result 889 states and 1256 transitions. [2022-10-16 03:43:36,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 03:43:36,003 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 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 55 [2022-10-16 03:43:36,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:36,007 INFO L225 Difference]: With dead ends: 889 [2022-10-16 03:43:36,008 INFO L226 Difference]: Without dead ends: 889 [2022-10-16 03:43:36,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2022-10-16 03:43:36,009 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 891 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:36,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 388 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 03:43:36,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2022-10-16 03:43:36,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 467. [2022-10-16 03:43:36,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.4086021505376345) internal successors, (655), 466 states have internal predecessors, (655), 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) [2022-10-16 03:43:36,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 655 transitions. [2022-10-16 03:43:36,026 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 655 transitions. Word has length 55 [2022-10-16 03:43:36,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:36,027 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 655 transitions. [2022-10-16 03:43:36,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 9 states have internal predecessors, (55), 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) [2022-10-16 03:43:36,027 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 655 transitions. [2022-10-16 03:43:36,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 03:43:36,028 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:36,028 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] [2022-10-16 03:43:36,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 03:43:36,029 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:36,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:36,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2014195720, now seen corresponding path program 1 times [2022-10-16 03:43:36,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:36,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135203766] [2022-10-16 03:43:36,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:36,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:36,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:36,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:36,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135203766] [2022-10-16 03:43:36,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135203766] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:36,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:36,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-10-16 03:43:36,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280859866] [2022-10-16 03:43:36,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:36,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 03:43:36,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:36,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 03:43:36,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-10-16 03:43:36,792 INFO L87 Difference]: Start difference. First operand 467 states and 655 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 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) [2022-10-16 03:43:38,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:38,346 INFO L93 Difference]: Finished difference Result 1619 states and 2322 transitions. [2022-10-16 03:43:38,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 03:43:38,347 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 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 56 [2022-10-16 03:43:38,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:38,355 INFO L225 Difference]: With dead ends: 1619 [2022-10-16 03:43:38,355 INFO L226 Difference]: Without dead ends: 1619 [2022-10-16 03:43:38,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2022-10-16 03:43:38,358 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1068 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:38,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 1289 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 03:43:38,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2022-10-16 03:43:38,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 451. [2022-10-16 03:43:38,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 449 states have (on average 1.4075723830734967) internal successors, (632), 450 states have internal predecessors, (632), 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) [2022-10-16 03:43:38,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 632 transitions. [2022-10-16 03:43:38,402 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 632 transitions. Word has length 56 [2022-10-16 03:43:38,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:38,402 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 632 transitions. [2022-10-16 03:43:38,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 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) [2022-10-16 03:43:38,403 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 632 transitions. [2022-10-16 03:43:38,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 03:43:38,409 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:38,410 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] [2022-10-16 03:43:38,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 03:43:38,411 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:38,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:38,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1797287643, now seen corresponding path program 1 times [2022-10-16 03:43:38,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:38,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571754830] [2022-10-16 03:43:38,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:38,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:39,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:39,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:39,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571754830] [2022-10-16 03:43:39,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571754830] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:39,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:39,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-10-16 03:43:39,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123561942] [2022-10-16 03:43:39,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:39,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 03:43:39,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:39,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 03:43:39,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-10-16 03:43:39,631 INFO L87 Difference]: Start difference. First operand 451 states and 632 transitions. Second operand has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 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) [2022-10-16 03:43:42,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:42,638 INFO L93 Difference]: Finished difference Result 2317 states and 3337 transitions. [2022-10-16 03:43:42,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 03:43:42,639 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 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 56 [2022-10-16 03:43:42,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:42,652 INFO L225 Difference]: With dead ends: 2317 [2022-10-16 03:43:42,652 INFO L226 Difference]: Without dead ends: 2317 [2022-10-16 03:43:42,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=286, Invalid=1120, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 03:43:42,654 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 1124 mSDsluCounter, 3398 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 3693 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:42,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 3693 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-16 03:43:42,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2022-10-16 03:43:42,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 456. [2022-10-16 03:43:42,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 454 states have (on average 1.4030837004405285) internal successors, (637), 455 states have internal predecessors, (637), 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) [2022-10-16 03:43:42,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 637 transitions. [2022-10-16 03:43:42,688 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 637 transitions. Word has length 56 [2022-10-16 03:43:42,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:42,688 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 637 transitions. [2022-10-16 03:43:42,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 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) [2022-10-16 03:43:42,689 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 637 transitions. [2022-10-16 03:43:42,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 03:43:42,689 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:42,689 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] [2022-10-16 03:43:42,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 03:43:42,690 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:42,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:42,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1026982439, now seen corresponding path program 1 times [2022-10-16 03:43:42,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:42,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846673363] [2022-10-16 03:43:42,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:42,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:43,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:43,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:43,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846673363] [2022-10-16 03:43:43,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846673363] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:43,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:43,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-10-16 03:43:43,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625389404] [2022-10-16 03:43:43,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:43,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 03:43:43,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:43,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 03:43:43,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-10-16 03:43:43,761 INFO L87 Difference]: Start difference. First operand 456 states and 637 transitions. Second operand has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 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) [2022-10-16 03:43:46,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:46,280 INFO L93 Difference]: Finished difference Result 2717 states and 3925 transitions. [2022-10-16 03:43:46,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 03:43:46,281 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 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 56 [2022-10-16 03:43:46,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:46,296 INFO L225 Difference]: With dead ends: 2717 [2022-10-16 03:43:46,296 INFO L226 Difference]: Without dead ends: 2717 [2022-10-16 03:43:46,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=273, Invalid=1209, Unknown=0, NotChecked=0, Total=1482 [2022-10-16 03:43:46,298 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 999 mSDsluCounter, 3477 mSDsCounter, 0 mSdLazyCounter, 1878 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 3752 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:46,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 3752 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1878 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 03:43:46,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2022-10-16 03:43:46,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 465. [2022-10-16 03:43:46,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 463 states have (on average 1.3995680345572354) internal successors, (648), 464 states have internal predecessors, (648), 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) [2022-10-16 03:43:46,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 648 transitions. [2022-10-16 03:43:46,335 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 648 transitions. Word has length 56 [2022-10-16 03:43:46,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:46,335 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 648 transitions. [2022-10-16 03:43:46,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 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) [2022-10-16 03:43:46,336 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 648 transitions. [2022-10-16 03:43:46,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 03:43:46,336 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:46,337 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] [2022-10-16 03:43:46,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 03:43:46,337 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:46,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:46,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1168073188, now seen corresponding path program 1 times [2022-10-16 03:43:46,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:46,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384440496] [2022-10-16 03:43:46,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:46,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:46,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:46,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:46,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384440496] [2022-10-16 03:43:46,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384440496] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:46,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:46,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-10-16 03:43:46,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859738184] [2022-10-16 03:43:46,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:47,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 03:43:47,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:47,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 03:43:47,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-10-16 03:43:47,001 INFO L87 Difference]: Start difference. First operand 465 states and 648 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 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) [2022-10-16 03:43:48,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:48,408 INFO L93 Difference]: Finished difference Result 1580 states and 2269 transitions. [2022-10-16 03:43:48,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 03:43:48,409 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 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 57 [2022-10-16 03:43:48,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:48,416 INFO L225 Difference]: With dead ends: 1580 [2022-10-16 03:43:48,416 INFO L226 Difference]: Without dead ends: 1580 [2022-10-16 03:43:48,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2022-10-16 03:43:48,418 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 685 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:48,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 1623 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 03:43:48,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2022-10-16 03:43:48,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 443. [2022-10-16 03:43:48,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 441 states have (on average 1.4036281179138321) internal successors, (619), 442 states have internal predecessors, (619), 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) [2022-10-16 03:43:48,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 619 transitions. [2022-10-16 03:43:48,440 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 619 transitions. Word has length 57 [2022-10-16 03:43:48,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:48,441 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 619 transitions. [2022-10-16 03:43:48,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 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) [2022-10-16 03:43:48,441 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 619 transitions. [2022-10-16 03:43:48,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 03:43:48,442 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:48,442 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] [2022-10-16 03:43:48,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 03:43:48,442 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:48,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:48,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1784114015, now seen corresponding path program 1 times [2022-10-16 03:43:48,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:48,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009436523] [2022-10-16 03:43:48,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:48,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:48,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:48,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:48,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009436523] [2022-10-16 03:43:48,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009436523] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:48,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:48,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-16 03:43:48,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553802065] [2022-10-16 03:43:48,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:48,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 03:43:48,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:49,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 03:43:49,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-10-16 03:43:49,000 INFO L87 Difference]: Start difference. First operand 443 states and 619 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2022-10-16 03:43:50,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:50,472 INFO L93 Difference]: Finished difference Result 2258 states and 3283 transitions. [2022-10-16 03:43:50,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 03:43:50,473 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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 57 [2022-10-16 03:43:50,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:50,483 INFO L225 Difference]: With dead ends: 2258 [2022-10-16 03:43:50,484 INFO L226 Difference]: Without dead ends: 2258 [2022-10-16 03:43:50,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2022-10-16 03:43:50,485 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 799 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:50,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 1282 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 03:43:50,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2022-10-16 03:43:50,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 420. [2022-10-16 03:43:50,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 419 states have (on average 1.4152744630071599) internal successors, (593), 419 states have internal predecessors, (593), 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) [2022-10-16 03:43:50,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 593 transitions. [2022-10-16 03:43:50,514 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 593 transitions. Word has length 57 [2022-10-16 03:43:50,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:50,514 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 593 transitions. [2022-10-16 03:43:50,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2022-10-16 03:43:50,515 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 593 transitions. [2022-10-16 03:43:50,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-16 03:43:50,516 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:50,516 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, 1, 1, 1] [2022-10-16 03:43:50,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 03:43:50,516 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:50,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:50,517 INFO L85 PathProgramCache]: Analyzing trace with hash -773234718, now seen corresponding path program 1 times [2022-10-16 03:43:50,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:50,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245160724] [2022-10-16 03:43:50,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:50,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:50,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:50,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:50,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:50,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245160724] [2022-10-16 03:43:50,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245160724] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:50,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:50,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:43:50,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331266218] [2022-10-16 03:43:50,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:50,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:43:50,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:50,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:43:50,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:43:50,583 INFO L87 Difference]: Start difference. First operand 420 states and 593 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2022-10-16 03:43:50,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:50,600 INFO L93 Difference]: Finished difference Result 724 states and 1010 transitions. [2022-10-16 03:43:50,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:43:50,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 76 [2022-10-16 03:43:50,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:50,605 INFO L225 Difference]: With dead ends: 724 [2022-10-16 03:43:50,605 INFO L226 Difference]: Without dead ends: 724 [2022-10-16 03:43:50,605 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 [2022-10-16 03:43:50,606 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 49 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:50,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 276 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:50,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2022-10-16 03:43:50,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 722. [2022-10-16 03:43:50,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 721 states have (on average 1.3994452149791956) internal successors, (1009), 721 states have internal predecessors, (1009), 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) [2022-10-16 03:43:50,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1009 transitions. [2022-10-16 03:43:50,634 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1009 transitions. Word has length 76 [2022-10-16 03:43:50,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:50,634 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 1009 transitions. [2022-10-16 03:43:50,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2022-10-16 03:43:50,635 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1009 transitions. [2022-10-16 03:43:50,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-16 03:43:50,636 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:50,636 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, 1, 1, 1, 1] [2022-10-16 03:43:50,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 03:43:50,637 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:50,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:50,638 INFO L85 PathProgramCache]: Analyzing trace with hash -2013626748, now seen corresponding path program 1 times [2022-10-16 03:43:50,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:50,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43044185] [2022-10-16 03:43:50,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:50,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:50,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:50,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:50,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43044185] [2022-10-16 03:43:50,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43044185] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:50,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:50,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:43:50,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108962932] [2022-10-16 03:43:50,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:50,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:43:50,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:50,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:43:50,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:43:50,788 INFO L87 Difference]: Start difference. First operand 722 states and 1009 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2022-10-16 03:43:50,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:50,804 INFO L93 Difference]: Finished difference Result 1143 states and 1578 transitions. [2022-10-16 03:43:50,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:43:50,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2022-10-16 03:43:50,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:50,811 INFO L225 Difference]: With dead ends: 1143 [2022-10-16 03:43:50,811 INFO L226 Difference]: Without dead ends: 1143 [2022-10-16 03:43:50,811 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 [2022-10-16 03:43:50,812 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 55 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:50,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 263 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:50,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2022-10-16 03:43:50,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 1069. [2022-10-16 03:43:50,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 1068 states have (on average 1.392322097378277) internal successors, (1487), 1068 states have internal predecessors, (1487), 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) [2022-10-16 03:43:50,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1487 transitions. [2022-10-16 03:43:50,840 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1487 transitions. Word has length 77 [2022-10-16 03:43:50,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:50,840 INFO L495 AbstractCegarLoop]: Abstraction has 1069 states and 1487 transitions. [2022-10-16 03:43:50,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2022-10-16 03:43:50,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1487 transitions. [2022-10-16 03:43:50,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 03:43:50,842 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:50,842 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, 1, 1, 1, 1, 1] [2022-10-16 03:43:50,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 03:43:50,842 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:50,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:50,843 INFO L85 PathProgramCache]: Analyzing trace with hash 31132410, now seen corresponding path program 1 times [2022-10-16 03:43:50,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:50,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17689993] [2022-10-16 03:43:50,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:50,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:50,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:50,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:50,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17689993] [2022-10-16 03:43:50,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17689993] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:50,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:50,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:43:50,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700044602] [2022-10-16 03:43:50,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:50,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:43:50,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:50,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:43:50,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:43:50,971 INFO L87 Difference]: Start difference. First operand 1069 states and 1487 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2022-10-16 03:43:50,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:50,988 INFO L93 Difference]: Finished difference Result 1972 states and 2697 transitions. [2022-10-16 03:43:50,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:43:50,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2022-10-16 03:43:50,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:50,997 INFO L225 Difference]: With dead ends: 1972 [2022-10-16 03:43:50,998 INFO L226 Difference]: Without dead ends: 1972 [2022-10-16 03:43:50,998 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 [2022-10-16 03:43:51,000 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 48 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:51,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 261 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:51,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2022-10-16 03:43:51,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1862. [2022-10-16 03:43:51,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1862 states, 1861 states have (on average 1.3761418592154755) internal successors, (2561), 1861 states have internal predecessors, (2561), 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) [2022-10-16 03:43:51,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2561 transitions. [2022-10-16 03:43:51,048 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2561 transitions. Word has length 78 [2022-10-16 03:43:51,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:51,048 INFO L495 AbstractCegarLoop]: Abstraction has 1862 states and 2561 transitions. [2022-10-16 03:43:51,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2022-10-16 03:43:51,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2561 transitions. [2022-10-16 03:43:51,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-16 03:43:51,050 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:51,050 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, 1, 1, 1, 1, 1, 1] [2022-10-16 03:43:51,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 03:43:51,050 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:51,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:51,051 INFO L85 PathProgramCache]: Analyzing trace with hash 769651115, now seen corresponding path program 1 times [2022-10-16 03:43:51,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:51,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861013458] [2022-10-16 03:43:51,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:51,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:51,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:51,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:51,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:51,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861013458] [2022-10-16 03:43:51,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861013458] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:51,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:51,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:43:51,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047289390] [2022-10-16 03:43:51,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:51,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:43:51,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:51,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:43:51,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:43:51,171 INFO L87 Difference]: Start difference. First operand 1862 states and 2561 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2022-10-16 03:43:51,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:51,198 INFO L93 Difference]: Finished difference Result 3450 states and 4629 transitions. [2022-10-16 03:43:51,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:43:51,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2022-10-16 03:43:51,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:51,216 INFO L225 Difference]: With dead ends: 3450 [2022-10-16 03:43:51,216 INFO L226 Difference]: Without dead ends: 3450 [2022-10-16 03:43:51,216 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 [2022-10-16 03:43:51,217 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 41 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:51,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 258 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:51,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3450 states. [2022-10-16 03:43:51,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3450 to 3232. [2022-10-16 03:43:51,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3232 states, 3231 states have (on average 1.3488084184463014) internal successors, (4358), 3231 states have internal predecessors, (4358), 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) [2022-10-16 03:43:51,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3232 states to 3232 states and 4358 transitions. [2022-10-16 03:43:51,328 INFO L78 Accepts]: Start accepts. Automaton has 3232 states and 4358 transitions. Word has length 79 [2022-10-16 03:43:51,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:51,328 INFO L495 AbstractCegarLoop]: Abstraction has 3232 states and 4358 transitions. [2022-10-16 03:43:51,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2022-10-16 03:43:51,329 INFO L276 IsEmpty]: Start isEmpty. Operand 3232 states and 4358 transitions. [2022-10-16 03:43:51,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 03:43:51,330 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:51,331 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, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:43:51,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 03:43:51,331 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:51,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:51,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1757386099, now seen corresponding path program 1 times [2022-10-16 03:43:51,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:51,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104206022] [2022-10-16 03:43:51,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:51,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:51,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:51,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:51,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:51,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104206022] [2022-10-16 03:43:51,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104206022] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:51,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:51,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 03:43:51,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060342792] [2022-10-16 03:43:51,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:51,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 03:43:51,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:51,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 03:43:51,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:43:51,583 INFO L87 Difference]: Start difference. First operand 3232 states and 4358 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2022-10-16 03:43:51,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:51,651 INFO L93 Difference]: Finished difference Result 5042 states and 6688 transitions. [2022-10-16 03:43:51,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 03:43:51,652 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 80 [2022-10-16 03:43:51,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:51,688 INFO L225 Difference]: With dead ends: 5042 [2022-10-16 03:43:51,689 INFO L226 Difference]: Without dead ends: 5042 [2022-10-16 03:43:51,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 03:43:51,690 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 191 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:51,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 620 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:51,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5042 states. [2022-10-16 03:43:51,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5042 to 3328. [2022-10-16 03:43:51,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3328 states, 3327 states have (on average 1.3267207694619778) internal successors, (4414), 3327 states have internal predecessors, (4414), 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) [2022-10-16 03:43:51,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3328 states to 3328 states and 4414 transitions. [2022-10-16 03:43:51,786 INFO L78 Accepts]: Start accepts. Automaton has 3328 states and 4414 transitions. Word has length 80 [2022-10-16 03:43:51,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:51,787 INFO L495 AbstractCegarLoop]: Abstraction has 3328 states and 4414 transitions. [2022-10-16 03:43:51,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2022-10-16 03:43:51,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 4414 transitions. [2022-10-16 03:43:51,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 03:43:51,788 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:51,788 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, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:43:51,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 03:43:51,788 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:51,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:51,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1852306095, now seen corresponding path program 1 times [2022-10-16 03:43:51,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:51,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794709590] [2022-10-16 03:43:51,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:51,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:51,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:51,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:51,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794709590] [2022-10-16 03:43:51,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794709590] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:43:51,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:43:51,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:43:51,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174665436] [2022-10-16 03:43:51,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:43:51,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:43:51,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:51,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:43:51,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:43:51,857 INFO L87 Difference]: Start difference. First operand 3328 states and 4414 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2022-10-16 03:43:51,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:43:51,885 INFO L93 Difference]: Finished difference Result 3454 states and 4507 transitions. [2022-10-16 03:43:51,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:43:51,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2022-10-16 03:43:51,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:43:51,893 INFO L225 Difference]: With dead ends: 3454 [2022-10-16 03:43:51,893 INFO L226 Difference]: Without dead ends: 3454 [2022-10-16 03:43:51,893 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 [2022-10-16 03:43:51,894 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 67 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:43:51,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 208 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:43:51,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2022-10-16 03:43:51,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3452. [2022-10-16 03:43:51,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3451 states have (on average 1.3057084902926688) internal successors, (4506), 3451 states have internal predecessors, (4506), 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) [2022-10-16 03:43:51,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 4506 transitions. [2022-10-16 03:43:51,989 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 4506 transitions. Word has length 80 [2022-10-16 03:43:51,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:43:51,990 INFO L495 AbstractCegarLoop]: Abstraction has 3452 states and 4506 transitions. [2022-10-16 03:43:51,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2022-10-16 03:43:51,991 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 4506 transitions. [2022-10-16 03:43:51,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 03:43:51,993 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:43:51,993 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2022-10-16 03:43:51,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 03:43:51,993 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:43:51,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:43:51,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1815794868, now seen corresponding path program 1 times [2022-10-16 03:43:51,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:43:51,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530333949] [2022-10-16 03:43:51,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:51,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:43:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:52,631 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:52,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:43:52,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530333949] [2022-10-16 03:43:52,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530333949] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 03:43:52,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164204979] [2022-10-16 03:43:52,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:43:52,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 03:43:52,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:43:52,639 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) [2022-10-16 03:43:52,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 03:43:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:43:52,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 03:43:52,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 03:43:53,652 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:53,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 03:43:55,439 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:43:55,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164204979] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 03:43:55,440 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 03:43:55,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2022-10-16 03:43:55,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624359774] [2022-10-16 03:43:55,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 03:43:55,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 03:43:55,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:43:55,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 03:43:55,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=882, Unknown=0, NotChecked=0, Total=992 [2022-10-16 03:43:55,443 INFO L87 Difference]: Start difference. First operand 3452 states and 4506 transitions. Second operand has 32 states, 32 states have (on average 8.59375) internal successors, (275), 31 states have internal predecessors, (275), 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) [2022-10-16 03:44:42,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:44:42,996 INFO L93 Difference]: Finished difference Result 72501 states and 91305 transitions. [2022-10-16 03:44:42,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 331 states. [2022-10-16 03:44:42,996 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.59375) internal successors, (275), 31 states have internal predecessors, (275), 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 101 [2022-10-16 03:44:42,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:44:43,147 INFO L225 Difference]: With dead ends: 72501 [2022-10-16 03:44:43,147 INFO L226 Difference]: Without dead ends: 72501 [2022-10-16 03:44:43,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 359 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52271 ImplicationChecksByTransitivity, 44.0s TimeCoverageRelationStatistics Valid=16661, Invalid=113299, Unknown=0, NotChecked=0, Total=129960 [2022-10-16 03:44:43,175 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 6724 mSDsluCounter, 2355 mSDsCounter, 0 mSdLazyCounter, 3331 mSolverCounterSat, 762 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6724 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 4093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 762 IncrementalHoareTripleChecker+Valid, 3331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:44:43,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6724 Valid, 2542 Invalid, 4093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [762 Valid, 3331 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-10-16 03:44:43,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72501 states. [2022-10-16 03:44:44,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72501 to 17738. [2022-10-16 03:44:44,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17738 states, 17737 states have (on average 1.2987540170265546) internal successors, (23036), 17737 states have internal predecessors, (23036), 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) [2022-10-16 03:44:44,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17738 states to 17738 states and 23036 transitions. [2022-10-16 03:44:44,097 INFO L78 Accepts]: Start accepts. Automaton has 17738 states and 23036 transitions. Word has length 101 [2022-10-16 03:44:44,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:44:44,098 INFO L495 AbstractCegarLoop]: Abstraction has 17738 states and 23036 transitions. [2022-10-16 03:44:44,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.59375) internal successors, (275), 31 states have internal predecessors, (275), 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) [2022-10-16 03:44:44,099 INFO L276 IsEmpty]: Start isEmpty. Operand 17738 states and 23036 transitions. [2022-10-16 03:44:44,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 03:44:44,104 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:44:44,105 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:44:44,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 03:44:44,318 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,SelfDestructingSolverStorable23 [2022-10-16 03:44:44,319 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:44:44,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:44:44,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1635937356, now seen corresponding path program 1 times [2022-10-16 03:44:44,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:44:44,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554065161] [2022-10-16 03:44:44,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:44:44,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:44:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:44:45,561 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:44:45,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:44:45,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554065161] [2022-10-16 03:44:45,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554065161] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 03:44:45,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089676073] [2022-10-16 03:44:45,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:44:45,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 03:44:45,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:44:45,565 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) [2022-10-16 03:44:45,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 03:44:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:44:45,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 03:44:45,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 03:44:46,703 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:44:46,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 03:44:48,568 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:44:48,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089676073] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 03:44:48,568 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 03:44:48,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10, 10] total 38 [2022-10-16 03:44:48,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329685554] [2022-10-16 03:44:48,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 03:44:48,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 03:44:48,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:44:48,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 03:44:48,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1292, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 03:44:48,570 INFO L87 Difference]: Start difference. First operand 17738 states and 23036 transitions. Second operand has 38 states, 38 states have (on average 7.526315789473684) internal successors, (286), 38 states have internal predecessors, (286), 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)