/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_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 03:11:13,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 03:11:13,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 03:11:13,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 03:11:13,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 03:11:13,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 03:11:13,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 03:11:13,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 03:11:13,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 03:11:13,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 03:11:13,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 03:11:13,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 03:11:13,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 03:11:13,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 03:11:13,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 03:11:13,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 03:11:13,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 03:11:13,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 03:11:13,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 03:11:13,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 03:11:13,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 03:11:13,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 03:11:13,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 03:11:13,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 03:11:13,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 03:11:13,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 03:11:13,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 03:11:13,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 03:11:13,355 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 03:11:13,414 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 03:11:13,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 03:11:13,415 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 03:11:13,416 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 03:11:13,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 03:11:13,417 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 03:11:13,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 03:11:13,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 03:11:13,418 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 03:11:13,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 03:11:13,419 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 03:11:13,419 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 03:11:13,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 03:11:13,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 03:11:13,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 03:11:13,420 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 03:11:13,420 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 03:11:13,420 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 03:11:13,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 03:11:13,421 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 03:11:13,421 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 03:11:13,421 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 03:11:13,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 03:11:13,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 03:11:13,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 03:11:13,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 03:11:13,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 03:11:13,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 03:11:13,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 03:11:13,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 03:11:13,423 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 03:11:13,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 03:11:13,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 03:11:13,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 03:11:13,824 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 03:11:13,825 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 03:11:13,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2022-10-16 03:11:13,914 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcc2f00c4/ba39a9cdac524695b3a66c7b4c006c1b/FLAGf54af89c2 [2022-10-16 03:11:14,528 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 03:11:14,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2022-10-16 03:11:14,545 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcc2f00c4/ba39a9cdac524695b3a66c7b4c006c1b/FLAGf54af89c2 [2022-10-16 03:11:14,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcc2f00c4/ba39a9cdac524695b3a66c7b4c006c1b [2022-10-16 03:11:14,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 03:11:14,837 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 03:11:14,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 03:11:14,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 03:11:14,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 03:11:14,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:11:14" (1/1) ... [2022-10-16 03:11:14,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ee2b50e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:14, skipping insertion in model container [2022-10-16 03:11:14,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:11:14" (1/1) ... [2022-10-16 03:11:14,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 03:11:14,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 03:11:15,167 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_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c[7067,7080] [2022-10-16 03:11:15,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 03:11:15,262 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 03:11:15,364 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_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c[7067,7080] [2022-10-16 03:11:15,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 03:11:15,412 INFO L208 MainTranslator]: Completed translation [2022-10-16 03:11:15,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:15 WrapperNode [2022-10-16 03:11:15,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 03:11:15,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 03:11:15,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 03:11:15,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 03:11:15,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:15" (1/1) ... [2022-10-16 03:11:15,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:15" (1/1) ... [2022-10-16 03:11:15,500 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 570 [2022-10-16 03:11:15,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 03:11:15,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 03:11:15,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 03:11:15,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 03:11:15,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:15" (1/1) ... [2022-10-16 03:11:15,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:15" (1/1) ... [2022-10-16 03:11:15,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:15" (1/1) ... [2022-10-16 03:11:15,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:15" (1/1) ... [2022-10-16 03:11:15,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:15" (1/1) ... [2022-10-16 03:11:15,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:15" (1/1) ... [2022-10-16 03:11:15,581 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:15" (1/1) ... [2022-10-16 03:11:15,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:15" (1/1) ... [2022-10-16 03:11:15,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 03:11:15,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 03:11:15,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 03:11:15,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 03:11:15,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:15" (1/1) ... [2022-10-16 03:11:15,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 03:11:15,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 03:11:15,652 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 03:11:15,680 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 03:11:15,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 03:11:15,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 03:11:15,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 03:11:15,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 03:11:16,037 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 03:11:16,044 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 03:11:16,689 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 03:11:16,700 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 03:11:16,700 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 03:11:16,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:11:16 BoogieIcfgContainer [2022-10-16 03:11:16,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 03:11:16,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 03:11:16,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 03:11:16,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 03:11:16,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:11:14" (1/3) ... [2022-10-16 03:11:16,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d90f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:11:16, skipping insertion in model container [2022-10-16 03:11:16,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:11:15" (2/3) ... [2022-10-16 03:11:16,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d90f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:11:16, skipping insertion in model container [2022-10-16 03:11:16,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:11:16" (3/3) ... [2022-10-16 03:11:16,713 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2022-10-16 03:11:16,736 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 03:11:16,737 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 03:11:16,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 03:11:16,811 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;@21826c77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 03:11:16,812 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 03:11:16,818 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 127 states have (on average 1.7716535433070866) internal successors, (225), 129 states have internal predecessors, (225), 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 03:11:16,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 03:11:16,827 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:16,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:16,829 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:16,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:16,836 INFO L85 PathProgramCache]: Analyzing trace with hash 962672991, now seen corresponding path program 1 times [2022-10-16 03:11:16,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:16,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059834686] [2022-10-16 03:11:16,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:16,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:17,274 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 03:11:17,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:17,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059834686] [2022-10-16 03:11:17,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059834686] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:17,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:17,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 03:11:17,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403780242] [2022-10-16 03:11:17,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:17,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:17,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:17,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:17,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:17,328 INFO L87 Difference]: Start difference. First operand has 130 states, 127 states have (on average 1.7716535433070866) internal successors, (225), 129 states have internal predecessors, (225), 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 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 03:11:17,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:17,385 INFO L93 Difference]: Finished difference Result 129 states and 223 transitions. [2022-10-16 03:11:17,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:17,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2022-10-16 03:11:17,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:17,410 INFO L225 Difference]: With dead ends: 129 [2022-10-16 03:11:17,415 INFO L226 Difference]: Without dead ends: 126 [2022-10-16 03:11:17,417 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 03:11:17,424 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 208 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 222 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 03:11:17,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 222 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:17,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-10-16 03:11:17,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-10-16 03:11:17,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.584) internal successors, (198), 125 states have internal predecessors, (198), 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 03:11:17,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 198 transitions. [2022-10-16 03:11:17,482 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 198 transitions. Word has length 16 [2022-10-16 03:11:17,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:17,483 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 198 transitions. [2022-10-16 03:11:17,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 03:11:17,484 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 198 transitions. [2022-10-16 03:11:17,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 03:11:17,487 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:17,487 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 03:11:17,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 03:11:17,488 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:17,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:17,489 INFO L85 PathProgramCache]: Analyzing trace with hash 794226412, now seen corresponding path program 1 times [2022-10-16 03:11:17,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:17,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614884547] [2022-10-16 03:11:17,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:17,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:17,822 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 03:11:17,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:17,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614884547] [2022-10-16 03:11:17,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614884547] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:17,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:17,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:11:17,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550593075] [2022-10-16 03:11:17,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:17,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:17,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:17,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:17,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:17,828 INFO L87 Difference]: Start difference. First operand 126 states and 198 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 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 03:11:17,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:17,919 INFO L93 Difference]: Finished difference Result 195 states and 308 transitions. [2022-10-16 03:11:17,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:17,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 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 03:11:17,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:17,923 INFO L225 Difference]: With dead ends: 195 [2022-10-16 03:11:17,923 INFO L226 Difference]: Without dead ends: 195 [2022-10-16 03:11:17,927 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 03:11:17,929 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 107 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:17,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 364 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:11:17,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-10-16 03:11:17,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2022-10-16 03:11:17,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.5989583333333333) internal successors, (307), 192 states have internal predecessors, (307), 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 03:11:17,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 307 transitions. [2022-10-16 03:11:17,986 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 307 transitions. Word has length 51 [2022-10-16 03:11:17,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:17,987 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 307 transitions. [2022-10-16 03:11:17,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 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 03:11:17,987 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 307 transitions. [2022-10-16 03:11:17,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 03:11:17,994 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:17,994 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 03:11:17,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 03:11:17,996 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:17,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:17,997 INFO L85 PathProgramCache]: Analyzing trace with hash -797280551, now seen corresponding path program 1 times [2022-10-16 03:11:17,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:17,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256241671] [2022-10-16 03:11:18,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:18,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:18,270 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 03:11:18,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:18,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256241671] [2022-10-16 03:11:18,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256241671] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:18,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:18,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:11:18,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896788984] [2022-10-16 03:11:18,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:18,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:18,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:18,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:18,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:18,289 INFO L87 Difference]: Start difference. First operand 193 states and 307 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 03:11:18,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:18,342 INFO L93 Difference]: Finished difference Result 324 states and 520 transitions. [2022-10-16 03:11:18,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:18,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 03:11:18,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:18,355 INFO L225 Difference]: With dead ends: 324 [2022-10-16 03:11:18,355 INFO L226 Difference]: Without dead ends: 324 [2022-10-16 03:11:18,356 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 03:11:18,359 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 110 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:18,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 436 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:18,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2022-10-16 03:11:18,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 322. [2022-10-16 03:11:18,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 1.6168224299065421) internal successors, (519), 321 states have internal predecessors, (519), 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 03:11:18,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 519 transitions. [2022-10-16 03:11:18,421 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 519 transitions. Word has length 53 [2022-10-16 03:11:18,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:18,421 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 519 transitions. [2022-10-16 03:11:18,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 03:11:18,424 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 519 transitions. [2022-10-16 03:11:18,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 03:11:18,430 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:18,430 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 03:11:18,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 03:11:18,430 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:18,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:18,431 INFO L85 PathProgramCache]: Analyzing trace with hash 59105759, now seen corresponding path program 1 times [2022-10-16 03:11:18,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:18,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646358728] [2022-10-16 03:11:18,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:18,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:18,586 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 03:11:18,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:18,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646358728] [2022-10-16 03:11:18,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646358728] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:18,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:18,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:11:18,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951074618] [2022-10-16 03:11:18,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:18,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:18,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:18,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:18,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:18,595 INFO L87 Difference]: Start difference. First operand 322 states and 519 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 03:11:18,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:18,627 INFO L93 Difference]: Finished difference Result 452 states and 730 transitions. [2022-10-16 03:11:18,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:18,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 03:11:18,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:18,632 INFO L225 Difference]: With dead ends: 452 [2022-10-16 03:11:18,633 INFO L226 Difference]: Without dead ends: 452 [2022-10-16 03:11:18,633 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 03:11:18,645 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 111 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:18,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 432 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:18,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-10-16 03:11:18,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 450. [2022-10-16 03:11:18,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 449 states have (on average 1.623608017817372) internal successors, (729), 449 states have internal predecessors, (729), 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 03:11:18,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 729 transitions. [2022-10-16 03:11:18,681 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 729 transitions. Word has length 55 [2022-10-16 03:11:18,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:18,683 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 729 transitions. [2022-10-16 03:11:18,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 03:11:18,684 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 729 transitions. [2022-10-16 03:11:18,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 03:11:18,690 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:18,690 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 03:11:18,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 03:11:18,694 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:18,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:18,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1104417908, now seen corresponding path program 1 times [2022-10-16 03:11:18,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:18,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965778184] [2022-10-16 03:11:18,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:18,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:18,841 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 03:11:18,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:18,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965778184] [2022-10-16 03:11:18,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965778184] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:18,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:18,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:11:18,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621994505] [2022-10-16 03:11:18,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:18,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:18,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:18,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:18,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:18,848 INFO L87 Difference]: Start difference. First operand 450 states and 729 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 03:11:18,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:18,874 INFO L93 Difference]: Finished difference Result 787 states and 1272 transitions. [2022-10-16 03:11:18,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:18,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 03:11:18,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:18,880 INFO L225 Difference]: With dead ends: 787 [2022-10-16 03:11:18,881 INFO L226 Difference]: Without dead ends: 787 [2022-10-16 03:11:18,881 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 03:11:18,888 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 105 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:18,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 374 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:18,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2022-10-16 03:11:18,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 785. [2022-10-16 03:11:18,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 784 states have (on average 1.621173469387755) internal successors, (1271), 784 states have internal predecessors, (1271), 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 03:11:18,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1271 transitions. [2022-10-16 03:11:18,917 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1271 transitions. Word has length 55 [2022-10-16 03:11:18,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:18,919 INFO L495 AbstractCegarLoop]: Abstraction has 785 states and 1271 transitions. [2022-10-16 03:11:18,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 03:11:18,920 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1271 transitions. [2022-10-16 03:11:18,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 03:11:18,924 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:18,924 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 03:11:18,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 03:11:18,925 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:18,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:18,926 INFO L85 PathProgramCache]: Analyzing trace with hash -179259079, now seen corresponding path program 1 times [2022-10-16 03:11:18,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:18,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981649282] [2022-10-16 03:11:18,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:18,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:19,183 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 03:11:19,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:19,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981649282] [2022-10-16 03:11:19,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981649282] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:19,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:19,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:11:19,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552849422] [2022-10-16 03:11:19,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:19,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:11:19,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:19,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:11:19,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:19,187 INFO L87 Difference]: Start difference. First operand 785 states and 1271 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 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 03:11:19,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:19,379 INFO L93 Difference]: Finished difference Result 2848 states and 4671 transitions. [2022-10-16 03:11:19,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 03:11:19,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 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 03:11:19,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:19,397 INFO L225 Difference]: With dead ends: 2848 [2022-10-16 03:11:19,398 INFO L226 Difference]: Without dead ends: 2848 [2022-10-16 03:11:19,398 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 03:11:19,401 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 883 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:19,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 1235 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:11:19,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2022-10-16 03:11:19,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 1426. [2022-10-16 03:11:19,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1425 states have (on average 1.6259649122807018) internal successors, (2317), 1425 states have internal predecessors, (2317), 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 03:11:19,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2317 transitions. [2022-10-16 03:11:19,469 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2317 transitions. Word has length 57 [2022-10-16 03:11:19,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:19,470 INFO L495 AbstractCegarLoop]: Abstraction has 1426 states and 2317 transitions. [2022-10-16 03:11:19,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 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 03:11:19,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2317 transitions. [2022-10-16 03:11:19,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 03:11:19,472 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:19,472 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] [2022-10-16 03:11:19,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 03:11:19,473 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:19,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:19,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1324568371, now seen corresponding path program 1 times [2022-10-16 03:11:19,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:19,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849922709] [2022-10-16 03:11:19,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:19,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:19,675 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 03:11:19,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:19,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849922709] [2022-10-16 03:11:19,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849922709] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:19,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:19,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:11:19,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821888503] [2022-10-16 03:11:19,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:19,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:11:19,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:19,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:11:19,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:11:19,678 INFO L87 Difference]: Start difference. First operand 1426 states and 2317 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 03:11:19,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:19,770 INFO L93 Difference]: Finished difference Result 2840 states and 4669 transitions. [2022-10-16 03:11:19,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:11:19,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2022-10-16 03:11:19,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:19,786 INFO L225 Difference]: With dead ends: 2840 [2022-10-16 03:11:19,786 INFO L226 Difference]: Without dead ends: 2840 [2022-10-16 03:11:19,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:19,787 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 379 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:19,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 589 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:19,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2840 states. [2022-10-16 03:11:19,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2840 to 2121. [2022-10-16 03:11:19,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2121 states, 2120 states have (on average 1.6320754716981132) internal successors, (3460), 2120 states have internal predecessors, (3460), 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 03:11:19,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 3460 transitions. [2022-10-16 03:11:19,853 INFO L78 Accepts]: Start accepts. Automaton has 2121 states and 3460 transitions. Word has length 58 [2022-10-16 03:11:19,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:19,854 INFO L495 AbstractCegarLoop]: Abstraction has 2121 states and 3460 transitions. [2022-10-16 03:11:19,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 03:11:19,854 INFO L276 IsEmpty]: Start isEmpty. Operand 2121 states and 3460 transitions. [2022-10-16 03:11:19,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 03:11:19,855 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:19,856 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] [2022-10-16 03:11:19,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 03:11:19,856 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:19,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:19,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1037107898, now seen corresponding path program 1 times [2022-10-16 03:11:19,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:19,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336867121] [2022-10-16 03:11:19,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:19,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:19,964 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 03:11:19,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:19,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336867121] [2022-10-16 03:11:19,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336867121] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:19,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:19,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:11:19,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823744514] [2022-10-16 03:11:19,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:19,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:19,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:19,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:19,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:19,967 INFO L87 Difference]: Start difference. First operand 2121 states and 3460 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 03:11:20,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:20,005 INFO L93 Difference]: Finished difference Result 2973 states and 4833 transitions. [2022-10-16 03:11:20,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:20,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2022-10-16 03:11:20,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:20,021 INFO L225 Difference]: With dead ends: 2973 [2022-10-16 03:11:20,022 INFO L226 Difference]: Without dead ends: 2973 [2022-10-16 03:11:20,022 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 03:11:20,023 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 106 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:20,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 414 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:20,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2973 states. [2022-10-16 03:11:20,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2973 to 2971. [2022-10-16 03:11:20,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2971 states, 2970 states have (on average 1.626936026936027) internal successors, (4832), 2970 states have internal predecessors, (4832), 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 03:11:20,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2971 states to 2971 states and 4832 transitions. [2022-10-16 03:11:20,111 INFO L78 Accepts]: Start accepts. Automaton has 2971 states and 4832 transitions. Word has length 58 [2022-10-16 03:11:20,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:20,111 INFO L495 AbstractCegarLoop]: Abstraction has 2971 states and 4832 transitions. [2022-10-16 03:11:20,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 03:11:20,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2971 states and 4832 transitions. [2022-10-16 03:11:20,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 03:11:20,113 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:20,113 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] [2022-10-16 03:11:20,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 03:11:20,113 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:20,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:20,114 INFO L85 PathProgramCache]: Analyzing trace with hash 405262074, now seen corresponding path program 1 times [2022-10-16 03:11:20,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:20,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326790351] [2022-10-16 03:11:20,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:20,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:20,184 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 03:11:20,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:20,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326790351] [2022-10-16 03:11:20,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326790351] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:20,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:20,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:11:20,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5075961] [2022-10-16 03:11:20,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:20,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:20,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:20,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:20,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:20,188 INFO L87 Difference]: Start difference. First operand 2971 states and 4832 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 03:11:20,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:20,249 INFO L93 Difference]: Finished difference Result 4307 states and 7034 transitions. [2022-10-16 03:11:20,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:20,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2022-10-16 03:11:20,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:20,271 INFO L225 Difference]: With dead ends: 4307 [2022-10-16 03:11:20,271 INFO L226 Difference]: Without dead ends: 4307 [2022-10-16 03:11:20,272 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 03:11:20,274 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 116 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:20,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 455 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:20,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2022-10-16 03:11:20,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 4305. [2022-10-16 03:11:20,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4305 states, 4304 states have (on average 1.634061338289963) internal successors, (7033), 4304 states have internal predecessors, (7033), 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 03:11:20,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 7033 transitions. [2022-10-16 03:11:20,395 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 7033 transitions. Word has length 58 [2022-10-16 03:11:20,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:20,395 INFO L495 AbstractCegarLoop]: Abstraction has 4305 states and 7033 transitions. [2022-10-16 03:11:20,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 03:11:20,396 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 7033 transitions. [2022-10-16 03:11:20,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 03:11:20,396 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:20,397 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] [2022-10-16 03:11:20,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 03:11:20,397 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:20,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:20,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1830107264, now seen corresponding path program 1 times [2022-10-16 03:11:20,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:20,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734307286] [2022-10-16 03:11:20,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:20,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:20,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:20,526 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 03:11:20,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:20,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734307286] [2022-10-16 03:11:20,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734307286] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:20,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:20,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:11:20,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941994024] [2022-10-16 03:11:20,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:20,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:11:20,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:20,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:11:20,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:11:20,530 INFO L87 Difference]: Start difference. First operand 4305 states and 7033 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 03:11:20,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:20,659 INFO L93 Difference]: Finished difference Result 9467 states and 15468 transitions. [2022-10-16 03:11:20,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:11:20,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 59 [2022-10-16 03:11:20,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:20,711 INFO L225 Difference]: With dead ends: 9467 [2022-10-16 03:11:20,712 INFO L226 Difference]: Without dead ends: 9467 [2022-10-16 03:11:20,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:20,713 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 377 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:20,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 663 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:11:20,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9467 states. [2022-10-16 03:11:20,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9467 to 6857. [2022-10-16 03:11:20,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6857 states, 6856 states have (on average 1.6270420070011669) internal successors, (11155), 6856 states have internal predecessors, (11155), 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 03:11:20,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6857 states to 6857 states and 11155 transitions. [2022-10-16 03:11:20,932 INFO L78 Accepts]: Start accepts. Automaton has 6857 states and 11155 transitions. Word has length 59 [2022-10-16 03:11:20,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:20,933 INFO L495 AbstractCegarLoop]: Abstraction has 6857 states and 11155 transitions. [2022-10-16 03:11:20,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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 03:11:20,933 INFO L276 IsEmpty]: Start isEmpty. Operand 6857 states and 11155 transitions. [2022-10-16 03:11:20,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-16 03:11:20,934 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:20,934 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] [2022-10-16 03:11:20,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 03:11:20,935 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:20,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:20,935 INFO L85 PathProgramCache]: Analyzing trace with hash 845362164, now seen corresponding path program 1 times [2022-10-16 03:11:20,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:20,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497178836] [2022-10-16 03:11:20,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:20,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:21,027 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 03:11:21,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:21,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497178836] [2022-10-16 03:11:21,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497178836] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:21,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:21,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:11:21,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732045975] [2022-10-16 03:11:21,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:21,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:11:21,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:21,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:11:21,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:11:21,030 INFO L87 Difference]: Start difference. First operand 6857 states and 11155 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 03:11:21,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:21,213 INFO L93 Difference]: Finished difference Result 14647 states and 23816 transitions. [2022-10-16 03:11:21,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:11:21,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 60 [2022-10-16 03:11:21,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:21,251 INFO L225 Difference]: With dead ends: 14647 [2022-10-16 03:11:21,251 INFO L226 Difference]: Without dead ends: 14647 [2022-10-16 03:11:21,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:21,252 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 375 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:21,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 660 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:11:21,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14647 states. [2022-10-16 03:11:21,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14647 to 10709. [2022-10-16 03:11:21,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10709 states, 10708 states have (on average 1.6194434067986552) internal successors, (17341), 10708 states have internal predecessors, (17341), 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 03:11:21,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10709 states to 10709 states and 17341 transitions. [2022-10-16 03:11:21,659 INFO L78 Accepts]: Start accepts. Automaton has 10709 states and 17341 transitions. Word has length 60 [2022-10-16 03:11:21,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:21,665 INFO L495 AbstractCegarLoop]: Abstraction has 10709 states and 17341 transitions. [2022-10-16 03:11:21,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 03:11:21,666 INFO L276 IsEmpty]: Start isEmpty. Operand 10709 states and 17341 transitions. [2022-10-16 03:11:21,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-16 03:11:21,666 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:21,667 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] [2022-10-16 03:11:21,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 03:11:21,667 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:21,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:21,670 INFO L85 PathProgramCache]: Analyzing trace with hash -873091579, now seen corresponding path program 1 times [2022-10-16 03:11:21,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:21,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996671136] [2022-10-16 03:11:21,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:21,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:21,949 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 03:11:21,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:21,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996671136] [2022-10-16 03:11:21,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996671136] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:21,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:21,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:11:21,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484540817] [2022-10-16 03:11:21,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:21,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:11:21,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:21,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:11:21,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:21,953 INFO L87 Difference]: Start difference. First operand 10709 states and 17341 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 03:11:22,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:22,086 INFO L93 Difference]: Finished difference Result 10711 states and 17217 transitions. [2022-10-16 03:11:22,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:11:22,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 62 [2022-10-16 03:11:22,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:22,110 INFO L225 Difference]: With dead ends: 10711 [2022-10-16 03:11:22,111 INFO L226 Difference]: Without dead ends: 10711 [2022-10-16 03:11:22,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:11:22,112 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 165 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:22,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 705 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:11:22,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10711 states. [2022-10-16 03:11:22,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10711 to 10709. [2022-10-16 03:11:22,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10709 states, 10708 states have (on average 1.6077698916697796) internal successors, (17216), 10708 states have internal predecessors, (17216), 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 03:11:22,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10709 states to 10709 states and 17216 transitions. [2022-10-16 03:11:22,337 INFO L78 Accepts]: Start accepts. Automaton has 10709 states and 17216 transitions. Word has length 62 [2022-10-16 03:11:22,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:22,337 INFO L495 AbstractCegarLoop]: Abstraction has 10709 states and 17216 transitions. [2022-10-16 03:11:22,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 03:11:22,338 INFO L276 IsEmpty]: Start isEmpty. Operand 10709 states and 17216 transitions. [2022-10-16 03:11:22,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 03:11:22,338 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:22,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:22,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 03:11:22,339 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:22,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:22,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1997863438, now seen corresponding path program 1 times [2022-10-16 03:11:22,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:22,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289716083] [2022-10-16 03:11:22,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:22,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:22,589 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 03:11:22,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:22,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289716083] [2022-10-16 03:11:22,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289716083] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:22,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:22,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:11:22,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543508020] [2022-10-16 03:11:22,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:22,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:11:22,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:22,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:11:22,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:22,593 INFO L87 Difference]: Start difference. First operand 10709 states and 17216 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:22,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:22,728 INFO L93 Difference]: Finished difference Result 20021 states and 31932 transitions. [2022-10-16 03:11:22,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:11:22,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-10-16 03:11:22,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:22,776 INFO L225 Difference]: With dead ends: 20021 [2022-10-16 03:11:22,776 INFO L226 Difference]: Without dead ends: 20021 [2022-10-16 03:11:22,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:11:22,777 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 367 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:22,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 541 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:22,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20021 states. [2022-10-16 03:11:23,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20021 to 20019. [2022-10-16 03:11:23,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20019 states, 20018 states have (on average 1.5951143970426616) internal successors, (31931), 20018 states have internal predecessors, (31931), 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 03:11:23,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20019 states to 20019 states and 31931 transitions. [2022-10-16 03:11:23,260 INFO L78 Accepts]: Start accepts. Automaton has 20019 states and 31931 transitions. Word has length 65 [2022-10-16 03:11:23,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:23,327 INFO L495 AbstractCegarLoop]: Abstraction has 20019 states and 31931 transitions. [2022-10-16 03:11:23,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:23,328 INFO L276 IsEmpty]: Start isEmpty. Operand 20019 states and 31931 transitions. [2022-10-16 03:11:23,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-16 03:11:23,328 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:23,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:23,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 03:11:23,329 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:23,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:23,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1806133758, now seen corresponding path program 1 times [2022-10-16 03:11:23,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:23,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380958893] [2022-10-16 03:11:23,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:23,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:23,642 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 03:11:23,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:23,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380958893] [2022-10-16 03:11:23,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380958893] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:23,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:23,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:11:23,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469221306] [2022-10-16 03:11:23,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:23,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:11:23,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:23,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:11:23,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:23,645 INFO L87 Difference]: Start difference. First operand 20019 states and 31931 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:23,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:23,879 INFO L93 Difference]: Finished difference Result 38395 states and 60572 transitions. [2022-10-16 03:11:23,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 03:11:23,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-10-16 03:11:23,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:23,985 INFO L225 Difference]: With dead ends: 38395 [2022-10-16 03:11:23,985 INFO L226 Difference]: Without dead ends: 38395 [2022-10-16 03:11:23,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 03:11:23,986 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 234 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:23,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 918 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:24,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38395 states. [2022-10-16 03:11:24,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38395 to 20743. [2022-10-16 03:11:24,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20743 states, 20742 states have (on average 1.5739080127277987) internal successors, (32646), 20742 states have internal predecessors, (32646), 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 03:11:24,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20743 states to 20743 states and 32646 transitions. [2022-10-16 03:11:24,659 INFO L78 Accepts]: Start accepts. Automaton has 20743 states and 32646 transitions. Word has length 66 [2022-10-16 03:11:24,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:24,660 INFO L495 AbstractCegarLoop]: Abstraction has 20743 states and 32646 transitions. [2022-10-16 03:11:24,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 03:11:24,660 INFO L276 IsEmpty]: Start isEmpty. Operand 20743 states and 32646 transitions. [2022-10-16 03:11:24,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-16 03:11:24,663 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:24,663 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:24,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 03:11:24,664 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:24,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:24,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1551322964, now seen corresponding path program 1 times [2022-10-16 03:11:24,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:24,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602801691] [2022-10-16 03:11:24,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:24,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:24,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:24,889 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 03:11:24,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:24,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602801691] [2022-10-16 03:11:24,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602801691] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:24,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:24,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:11:24,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299658623] [2022-10-16 03:11:24,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:24,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:11:24,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:24,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:11:24,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:24,892 INFO L87 Difference]: Start difference. First operand 20743 states and 32646 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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 03:11:25,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:25,182 INFO L93 Difference]: Finished difference Result 40759 states and 64187 transitions. [2022-10-16 03:11:25,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:11:25,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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 87 [2022-10-16 03:11:25,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:25,268 INFO L225 Difference]: With dead ends: 40759 [2022-10-16 03:11:25,268 INFO L226 Difference]: Without dead ends: 40759 [2022-10-16 03:11:25,269 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 03:11:25,270 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 479 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:25,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 913 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:11:25,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40759 states. [2022-10-16 03:11:26,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40759 to 31829. [2022-10-16 03:11:26,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31829 states, 31828 states have (on average 1.5726404423777807) internal successors, (50054), 31828 states have internal predecessors, (50054), 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 03:11:26,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31829 states to 31829 states and 50054 transitions. [2022-10-16 03:11:26,252 INFO L78 Accepts]: Start accepts. Automaton has 31829 states and 50054 transitions. Word has length 87 [2022-10-16 03:11:26,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:26,252 INFO L495 AbstractCegarLoop]: Abstraction has 31829 states and 50054 transitions. [2022-10-16 03:11:26,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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 03:11:26,253 INFO L276 IsEmpty]: Start isEmpty. Operand 31829 states and 50054 transitions. [2022-10-16 03:11:26,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-16 03:11:26,257 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:26,257 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] [2022-10-16 03:11:26,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 03:11:26,258 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:26,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:26,258 INFO L85 PathProgramCache]: Analyzing trace with hash -180423953, now seen corresponding path program 1 times [2022-10-16 03:11:26,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:26,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882917855] [2022-10-16 03:11:26,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:26,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:26,611 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 03:11:26,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:26,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882917855] [2022-10-16 03:11:26,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882917855] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:26,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:26,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:11:26,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314495424] [2022-10-16 03:11:26,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:26,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:11:26,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:26,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:11:26,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:26,614 INFO L87 Difference]: Start difference. First operand 31829 states and 50054 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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 03:11:26,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:26,835 INFO L93 Difference]: Finished difference Result 44651 states and 70351 transitions. [2022-10-16 03:11:26,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:11:26,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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 87 [2022-10-16 03:11:26,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:26,915 INFO L225 Difference]: With dead ends: 44651 [2022-10-16 03:11:26,916 INFO L226 Difference]: Without dead ends: 44651 [2022-10-16 03:11:26,916 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 03:11:26,917 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 481 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:26,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 853 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:11:26,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44651 states. [2022-10-16 03:11:27,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44651 to 43061. [2022-10-16 03:11:27,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43061 states, 43060 states have (on average 1.573525313516024) internal successors, (67756), 43060 states have internal predecessors, (67756), 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 03:11:28,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43061 states to 43061 states and 67756 transitions. [2022-10-16 03:11:28,058 INFO L78 Accepts]: Start accepts. Automaton has 43061 states and 67756 transitions. Word has length 87 [2022-10-16 03:11:28,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:28,058 INFO L495 AbstractCegarLoop]: Abstraction has 43061 states and 67756 transitions. [2022-10-16 03:11:28,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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 03:11:28,059 INFO L276 IsEmpty]: Start isEmpty. Operand 43061 states and 67756 transitions. [2022-10-16 03:11:28,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-16 03:11:28,067 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:28,067 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] [2022-10-16 03:11:28,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 03:11:28,068 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:28,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:28,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1505007627, now seen corresponding path program 1 times [2022-10-16 03:11:28,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:28,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452078480] [2022-10-16 03:11:28,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:28,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:28,281 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 03:11:28,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:28,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452078480] [2022-10-16 03:11:28,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452078480] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:28,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:28,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 03:11:28,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777559480] [2022-10-16 03:11:28,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:28,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 03:11:28,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:28,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 03:11:28,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:28,284 INFO L87 Difference]: Start difference. First operand 43061 states and 67756 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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 03:11:28,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:28,938 INFO L93 Difference]: Finished difference Result 51035 states and 80539 transitions. [2022-10-16 03:11:28,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:11:28,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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 87 [2022-10-16 03:11:28,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:29,025 INFO L225 Difference]: With dead ends: 51035 [2022-10-16 03:11:29,026 INFO L226 Difference]: Without dead ends: 51035 [2022-10-16 03:11:29,026 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 03:11:29,027 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 478 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:29,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 903 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:11:29,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51035 states. [2022-10-16 03:11:29,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51035 to 49445. [2022-10-16 03:11:29,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49445 states, 49444 states have (on average 1.5764096755925896) internal successors, (77944), 49444 states have internal predecessors, (77944), 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 03:11:30,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49445 states to 49445 states and 77944 transitions. [2022-10-16 03:11:30,194 INFO L78 Accepts]: Start accepts. Automaton has 49445 states and 77944 transitions. Word has length 87 [2022-10-16 03:11:30,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:30,195 INFO L495 AbstractCegarLoop]: Abstraction has 49445 states and 77944 transitions. [2022-10-16 03:11:30,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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 03:11:30,195 INFO L276 IsEmpty]: Start isEmpty. Operand 49445 states and 77944 transitions. [2022-10-16 03:11:30,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-16 03:11:30,200 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:30,200 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] [2022-10-16 03:11:30,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 03:11:30,206 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:30,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:30,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1452800423, now seen corresponding path program 1 times [2022-10-16 03:11:30,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:30,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747980528] [2022-10-16 03:11:30,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:30,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:30,389 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 03:11:30,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:30,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747980528] [2022-10-16 03:11:30,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747980528] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:30,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:30,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:11:30,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512500995] [2022-10-16 03:11:30,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:30,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:30,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:30,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:30,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:30,392 INFO L87 Difference]: Start difference. First operand 49445 states and 77944 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 03:11:30,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:30,532 INFO L93 Difference]: Finished difference Result 43005 states and 67823 transitions. [2022-10-16 03:11:30,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:30,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 88 [2022-10-16 03:11:30,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:30,605 INFO L225 Difference]: With dead ends: 43005 [2022-10-16 03:11:30,605 INFO L226 Difference]: Without dead ends: 43005 [2022-10-16 03:11:30,606 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 03:11:30,607 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 87 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:30,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 421 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:30,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43005 states. [2022-10-16 03:11:31,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43005 to 42999. [2022-10-16 03:11:31,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42999 states, 42998 states have (on average 1.5772361505186288) internal successors, (67818), 42998 states have internal predecessors, (67818), 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 03:11:31,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42999 states to 42999 states and 67818 transitions. [2022-10-16 03:11:31,476 INFO L78 Accepts]: Start accepts. Automaton has 42999 states and 67818 transitions. Word has length 88 [2022-10-16 03:11:31,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:31,476 INFO L495 AbstractCegarLoop]: Abstraction has 42999 states and 67818 transitions. [2022-10-16 03:11:31,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 03:11:31,476 INFO L276 IsEmpty]: Start isEmpty. Operand 42999 states and 67818 transitions. [2022-10-16 03:11:31,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-16 03:11:31,479 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:31,480 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:11:31,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 03:11:31,480 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:31,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:31,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1846294304, now seen corresponding path program 1 times [2022-10-16 03:11:31,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:31,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327458269] [2022-10-16 03:11:31,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:31,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:32,072 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 03:11:32,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:32,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327458269] [2022-10-16 03:11:32,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327458269] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:32,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:32,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:11:32,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627069806] [2022-10-16 03:11:32,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:32,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:11:32,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:32,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:11:32,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:11:32,077 INFO L87 Difference]: Start difference. First operand 42999 states and 67818 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 03:11:32,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:32,421 INFO L93 Difference]: Finished difference Result 76465 states and 120746 transitions. [2022-10-16 03:11:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:11:32,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 88 [2022-10-16 03:11:32,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:32,559 INFO L225 Difference]: With dead ends: 76465 [2022-10-16 03:11:32,560 INFO L226 Difference]: Without dead ends: 76465 [2022-10-16 03:11:32,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:32,561 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 381 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:32,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 561 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:32,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76465 states. [2022-10-16 03:11:33,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76465 to 66031. [2022-10-16 03:11:33,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66031 states, 66030 states have (on average 1.5795850371043465) internal successors, (104300), 66030 states have internal predecessors, (104300), 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 03:11:33,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66031 states to 66031 states and 104300 transitions. [2022-10-16 03:11:33,984 INFO L78 Accepts]: Start accepts. Automaton has 66031 states and 104300 transitions. Word has length 88 [2022-10-16 03:11:33,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:33,984 INFO L495 AbstractCegarLoop]: Abstraction has 66031 states and 104300 transitions. [2022-10-16 03:11:33,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 03:11:33,984 INFO L276 IsEmpty]: Start isEmpty. Operand 66031 states and 104300 transitions. [2022-10-16 03:11:33,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-16 03:11:33,986 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:33,986 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:33,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 03:11:33,986 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:33,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:33,987 INFO L85 PathProgramCache]: Analyzing trace with hash 366914519, now seen corresponding path program 1 times [2022-10-16 03:11:33,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:33,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5099863] [2022-10-16 03:11:33,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:33,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:34,098 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 03:11:34,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:34,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5099863] [2022-10-16 03:11:34,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5099863] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:34,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:34,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:11:34,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439918579] [2022-10-16 03:11:34,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:34,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:34,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:34,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:34,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:34,101 INFO L87 Difference]: Start difference. First operand 66031 states and 104300 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 03:11:34,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:34,866 INFO L93 Difference]: Finished difference Result 112114 states and 176674 transitions. [2022-10-16 03:11:34,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:34,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 88 [2022-10-16 03:11:34,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:35,053 INFO L225 Difference]: With dead ends: 112114 [2022-10-16 03:11:35,054 INFO L226 Difference]: Without dead ends: 112114 [2022-10-16 03:11:35,054 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 03:11:35,055 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 96 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:35,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 355 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:35,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112114 states. [2022-10-16 03:11:36,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112114 to 111793. [2022-10-16 03:11:36,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111793 states, 111792 states have (on average 1.5775189637898954) internal successors, (176354), 111792 states have internal predecessors, (176354), 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 03:11:36,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111793 states to 111793 states and 176354 transitions. [2022-10-16 03:11:36,855 INFO L78 Accepts]: Start accepts. Automaton has 111793 states and 176354 transitions. Word has length 88 [2022-10-16 03:11:36,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:36,855 INFO L495 AbstractCegarLoop]: Abstraction has 111793 states and 176354 transitions. [2022-10-16 03:11:36,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 03:11:36,856 INFO L276 IsEmpty]: Start isEmpty. Operand 111793 states and 176354 transitions. [2022-10-16 03:11:36,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-16 03:11:36,858 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:36,858 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 03:11:36,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 03:11:36,858 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:36,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:36,859 INFO L85 PathProgramCache]: Analyzing trace with hash 526899601, now seen corresponding path program 1 times [2022-10-16 03:11:36,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:36,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753675887] [2022-10-16 03:11:36,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:36,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:37,019 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 03:11:37,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:37,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753675887] [2022-10-16 03:11:37,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753675887] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:37,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:37,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:11:37,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776079095] [2022-10-16 03:11:37,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:37,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:11:37,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:37,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:11:37,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:11:37,023 INFO L87 Difference]: Start difference. First operand 111793 states and 176354 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 03:11:38,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:38,143 INFO L93 Difference]: Finished difference Result 156126 states and 245892 transitions. [2022-10-16 03:11:38,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:11:38,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 88 [2022-10-16 03:11:38,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:38,449 INFO L225 Difference]: With dead ends: 156126 [2022-10-16 03:11:38,449 INFO L226 Difference]: Without dead ends: 156126 [2022-10-16 03:11:38,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:11:38,452 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 213 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:38,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 674 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:11:38,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156126 states. [2022-10-16 03:11:40,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156126 to 149885. [2022-10-16 03:11:40,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149885 states, 149884 states have (on average 1.5744775960075792) internal successors, (235989), 149884 states have internal predecessors, (235989), 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 03:11:41,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149885 states to 149885 states and 235989 transitions. [2022-10-16 03:11:41,206 INFO L78 Accepts]: Start accepts. Automaton has 149885 states and 235989 transitions. Word has length 88 [2022-10-16 03:11:41,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:41,207 INFO L495 AbstractCegarLoop]: Abstraction has 149885 states and 235989 transitions. [2022-10-16 03:11:41,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 03:11:41,207 INFO L276 IsEmpty]: Start isEmpty. Operand 149885 states and 235989 transitions. [2022-10-16 03:11:41,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-16 03:11:41,209 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:41,210 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:11:41,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 03:11:41,210 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:41,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:41,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1406391426, now seen corresponding path program 1 times [2022-10-16 03:11:41,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:41,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384167249] [2022-10-16 03:11:41,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:41,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:42,282 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 03:11:42,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:42,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384167249] [2022-10-16 03:11:42,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384167249] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:42,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:42,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:11:42,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787489340] [2022-10-16 03:11:42,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:42,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:11:42,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:42,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:11:42,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:11:42,285 INFO L87 Difference]: Start difference. First operand 149885 states and 235989 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 03:11:43,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:43,531 INFO L93 Difference]: Finished difference Result 247011 states and 388109 transitions. [2022-10-16 03:11:43,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 03:11:43,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 88 [2022-10-16 03:11:43,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:43,941 INFO L225 Difference]: With dead ends: 247011 [2022-10-16 03:11:43,941 INFO L226 Difference]: Without dead ends: 247011 [2022-10-16 03:11:43,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 03:11:43,942 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 337 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:43,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 578 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 03:11:44,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247011 states. [2022-10-16 03:11:47,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247011 to 226013. [2022-10-16 03:11:47,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226013 states, 226012 states have (on average 1.5726465851370723) internal successors, (355437), 226012 states have internal predecessors, (355437), 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 03:11:48,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226013 states to 226013 states and 355437 transitions. [2022-10-16 03:11:48,435 INFO L78 Accepts]: Start accepts. Automaton has 226013 states and 355437 transitions. Word has length 88 [2022-10-16 03:11:48,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:48,439 INFO L495 AbstractCegarLoop]: Abstraction has 226013 states and 355437 transitions. [2022-10-16 03:11:48,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 03:11:48,439 INFO L276 IsEmpty]: Start isEmpty. Operand 226013 states and 355437 transitions. [2022-10-16 03:11:48,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 03:11:48,441 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:48,441 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:11:48,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 03:11:48,444 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:48,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:48,445 INFO L85 PathProgramCache]: Analyzing trace with hash -241829001, now seen corresponding path program 1 times [2022-10-16 03:11:48,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:48,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962591670] [2022-10-16 03:11:48,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:48,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:48,679 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 03:11:48,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:48,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962591670] [2022-10-16 03:11:48,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962591670] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:48,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:48,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 03:11:48,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285467534] [2022-10-16 03:11:48,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:48,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 03:11:48,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:48,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 03:11:48,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:11:48,682 INFO L87 Difference]: Start difference. First operand 226013 states and 355437 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 03:11:50,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:50,047 INFO L93 Difference]: Finished difference Result 277866 states and 437249 transitions. [2022-10-16 03:11:50,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 03:11:50,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 90 [2022-10-16 03:11:50,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:50,622 INFO L225 Difference]: With dead ends: 277866 [2022-10-16 03:11:50,622 INFO L226 Difference]: Without dead ends: 277866 [2022-10-16 03:11:50,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 03:11:50,624 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 224 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:50,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 624 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:50,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277866 states. [2022-10-16 03:11:53,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277866 to 257681. [2022-10-16 03:11:54,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257681 states, 257680 states have (on average 1.5727879540515368) internal successors, (405276), 257680 states have internal predecessors, (405276), 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 03:11:55,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257681 states to 257681 states and 405276 transitions. [2022-10-16 03:11:55,416 INFO L78 Accepts]: Start accepts. Automaton has 257681 states and 405276 transitions. Word has length 90 [2022-10-16 03:11:55,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:11:55,416 INFO L495 AbstractCegarLoop]: Abstraction has 257681 states and 405276 transitions. [2022-10-16 03:11:55,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 03:11:55,417 INFO L276 IsEmpty]: Start isEmpty. Operand 257681 states and 405276 transitions. [2022-10-16 03:11:55,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 03:11:55,418 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:11:55,418 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:11:55,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 03:11:55,419 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:11:55,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:11:55,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1609986793, now seen corresponding path program 1 times [2022-10-16 03:11:55,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:11:55,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309446397] [2022-10-16 03:11:55,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:11:55,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:11:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:11:55,500 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 03:11:55,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:11:55,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309446397] [2022-10-16 03:11:55,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309446397] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:11:55,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:11:55,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:11:55,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93933295] [2022-10-16 03:11:55,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:11:55,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:11:55,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:11:55,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:11:55,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:11:55,505 INFO L87 Difference]: Start difference. First operand 257681 states and 405276 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 03:11:58,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:11:58,018 INFO L93 Difference]: Finished difference Result 419092 states and 658189 transitions. [2022-10-16 03:11:58,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:11:58,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 90 [2022-10-16 03:11:58,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:11:58,793 INFO L225 Difference]: With dead ends: 419092 [2022-10-16 03:11:58,793 INFO L226 Difference]: Without dead ends: 419092 [2022-10-16 03:11:58,794 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 03:11:58,795 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 86 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:11:58,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 374 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:11:59,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419092 states. [2022-10-16 03:12:04,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419092 to 418129. [2022-10-16 03:12:06,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418129 states, 418128 states have (on average 1.5718320705621245) internal successors, (657227), 418128 states have internal predecessors, (657227), 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 03:12:09,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418129 states to 418129 states and 657227 transitions. [2022-10-16 03:12:09,180 INFO L78 Accepts]: Start accepts. Automaton has 418129 states and 657227 transitions. Word has length 90 [2022-10-16 03:12:09,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:12:09,184 INFO L495 AbstractCegarLoop]: Abstraction has 418129 states and 657227 transitions. [2022-10-16 03:12:09,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 03:12:09,184 INFO L276 IsEmpty]: Start isEmpty. Operand 418129 states and 657227 transitions. [2022-10-16 03:12:09,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-16 03:12:09,203 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:12:09,203 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:12:09,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 03:12:09,205 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:12:09,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:12:09,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1401430207, now seen corresponding path program 1 times [2022-10-16 03:12:09,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:12:09,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750711903] [2022-10-16 03:12:09,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:12:09,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:12:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:12:09,380 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 03:12:09,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:12:09,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750711903] [2022-10-16 03:12:09,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750711903] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:12:09,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:12:09,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:12:09,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228455954] [2022-10-16 03:12:09,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:12:09,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:12:09,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:12:09,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:12:09,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:12:09,383 INFO L87 Difference]: Start difference. First operand 418129 states and 657227 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 03:12:14,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:12:14,445 INFO L93 Difference]: Finished difference Result 814498 states and 1271941 transitions. [2022-10-16 03:12:14,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:12:14,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2022-10-16 03:12:14,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:12:17,102 INFO L225 Difference]: With dead ends: 814498 [2022-10-16 03:12:17,103 INFO L226 Difference]: Without dead ends: 814498 [2022-10-16 03:12:17,103 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 03:12:17,109 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 122 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:12:17,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 435 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:12:18,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814498 states. [2022-10-16 03:12:28,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814498 to 814496. [2022-10-16 03:12:31,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814496 states, 814495 states have (on average 1.5616302125857127) internal successors, (1271940), 814495 states have internal predecessors, (1271940), 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 03:12:38,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814496 states to 814496 states and 1271940 transitions. [2022-10-16 03:12:38,489 INFO L78 Accepts]: Start accepts. Automaton has 814496 states and 1271940 transitions. Word has length 91 [2022-10-16 03:12:38,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 03:12:38,490 INFO L495 AbstractCegarLoop]: Abstraction has 814496 states and 1271940 transitions. [2022-10-16 03:12:38,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 03:12:38,490 INFO L276 IsEmpty]: Start isEmpty. Operand 814496 states and 1271940 transitions. [2022-10-16 03:12:38,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-16 03:12:38,504 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 03:12:38,504 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 03:12:38,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 03:12:38,505 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 03:12:38,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 03:12:38,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1314251447, now seen corresponding path program 1 times [2022-10-16 03:12:38,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 03:12:38,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574931157] [2022-10-16 03:12:38,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 03:12:38,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 03:12:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 03:12:38,635 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 03:12:38,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 03:12:38,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574931157] [2022-10-16 03:12:38,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574931157] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 03:12:38,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 03:12:38,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 03:12:38,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710710716] [2022-10-16 03:12:38,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 03:12:38,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 03:12:38,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 03:12:38,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 03:12:38,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 03:12:38,642 INFO L87 Difference]: Start difference. First operand 814496 states and 1271940 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 03:12:48,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 03:12:48,565 INFO L93 Difference]: Finished difference Result 1585097 states and 2458197 transitions. [2022-10-16 03:12:48,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 03:12:48,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2022-10-16 03:12:48,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 03:12:54,917 INFO L225 Difference]: With dead ends: 1585097 [2022-10-16 03:12:54,921 INFO L226 Difference]: Without dead ends: 1585097 [2022-10-16 03:12:54,935 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 03:12:54,936 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 140 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 03:12:54,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 468 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 03:12:56,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585097 states.