/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:19:12,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:19:12,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:19:12,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 17:19:12,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:19:12,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:19:12,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:19:12,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:19:12,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:19:12,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:19:12,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:19:12,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:19:12,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:19:12,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:19:12,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:19:12,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:19:12,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:19:12,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:19:12,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:19:12,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:19:12,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:19:12,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:19:12,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:19:12,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:19:12,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:19:12,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:19:12,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:19:12,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:19:12,177 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-15 17:19:12,247 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:19:12,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:19:12,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:19:12,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:19:12,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:19:12,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:19:12,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:19:12,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:19:12,255 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:19:12,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:19:12,257 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:19:12,257 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:19:12,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:19:12,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:19:12,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:19:12,258 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:19:12,258 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:19:12,258 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:19:12,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:19:12,259 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:19:12,259 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:19:12,259 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:19:12,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:19:12,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:19:12,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:19:12,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:19:12,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:19:12,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:19:12,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:19:12,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:19:12,261 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:19:12,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:19:12,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:19:12,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:19:12,783 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:19:12,783 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:19:12,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c [2022-10-15 17:19:12,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/571585ca4/1456c1ecb92d42e5a918ba2806c3d443/FLAG713c19e56 [2022-10-15 17:19:13,654 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:19:13,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c [2022-10-15 17:19:13,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/571585ca4/1456c1ecb92d42e5a918ba2806c3d443/FLAG713c19e56 [2022-10-15 17:19:13,873 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/571585ca4/1456c1ecb92d42e5a918ba2806c3d443 [2022-10-15 17:19:13,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:19:13,883 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:19:13,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:19:13,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:19:13,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:19:13,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:19:13" (1/1) ... [2022-10-15 17:19:13,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a0d6ab7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:13, skipping insertion in model container [2022-10-15 17:19:13,893 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:19:13" (1/1) ... [2022-10-15 17:19:13,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:19:13,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:19:14,595 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c[52017,52030] [2022-10-15 17:19:14,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:19:14,618 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:19:14,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_floodmax.5.1.ufo.BOUNDED-10.pals.c[52017,52030] [2022-10-15 17:19:14,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:19:14,852 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:19:14,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:14 WrapperNode [2022-10-15 17:19:14,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:19:14,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:19:14,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:19:14,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:19:14,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:14" (1/1) ... [2022-10-15 17:19:14,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:14" (1/1) ... [2022-10-15 17:19:15,030 INFO L138 Inliner]: procedures = 24, calls = 16, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 2011 [2022-10-15 17:19:15,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:19:15,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:19:15,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:19:15,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:19:15,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:14" (1/1) ... [2022-10-15 17:19:15,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:14" (1/1) ... [2022-10-15 17:19:15,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:14" (1/1) ... [2022-10-15 17:19:15,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:14" (1/1) ... [2022-10-15 17:19:15,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:14" (1/1) ... [2022-10-15 17:19:15,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:14" (1/1) ... [2022-10-15 17:19:15,121 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:14" (1/1) ... [2022-10-15 17:19:15,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:14" (1/1) ... [2022-10-15 17:19:15,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:19:15,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:19:15,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:19:15,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:19:15,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:14" (1/1) ... [2022-10-15 17:19:15,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:19:15,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:19:15,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 17:19:15,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 17:19:15,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:19:15,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:19:15,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:19:15,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:19:15,550 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:19:15,553 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:19:17,576 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:19:17,607 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:19:17,607 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 17:19:17,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:19:17 BoogieIcfgContainer [2022-10-15 17:19:17,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:19:17,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:19:17,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:19:17,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:19:17,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:19:13" (1/3) ... [2022-10-15 17:19:17,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d6d12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:19:17, skipping insertion in model container [2022-10-15 17:19:17,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:19:14" (2/3) ... [2022-10-15 17:19:17,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d6d12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:19:17, skipping insertion in model container [2022-10-15 17:19:17,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:19:17" (3/3) ... [2022-10-15 17:19:17,626 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.1.ufo.BOUNDED-10.pals.c [2022-10-15 17:19:17,652 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:19:17,652 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:19:17,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:19:17,741 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;@7e0d32d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:19:17,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:19:17,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 687 states, 684 states have (on average 1.847953216374269) internal successors, (1264), 686 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:17,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-10-15 17:19:17,791 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:17,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:17,794 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:17,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:17,801 INFO L85 PathProgramCache]: Analyzing trace with hash 375086613, now seen corresponding path program 1 times [2022-10-15 17:19:17,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:17,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530805237] [2022-10-15 17:19:17,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:17,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:18,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:18,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:18,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530805237] [2022-10-15 17:19:18,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530805237] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:18,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:18,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:19:18,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974533728] [2022-10-15 17:19:18,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:18,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 17:19:18,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:18,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 17:19:18,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:19:18,634 INFO L87 Difference]: Start difference. First operand has 687 states, 684 states have (on average 1.847953216374269) internal successors, (1264), 686 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:18,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:18,715 INFO L93 Difference]: Finished difference Result 687 states and 1261 transitions. [2022-10-15 17:19:18,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 17:19:18,722 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2022-10-15 17:19:18,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:18,770 INFO L225 Difference]: With dead ends: 687 [2022-10-15 17:19:18,772 INFO L226 Difference]: Without dead ends: 685 [2022-10-15 17:19:18,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 17:19:18,783 INFO L413 NwaCegarLoop]: 1261 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:18,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:18,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2022-10-15 17:19:18,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 685. [2022-10-15 17:19:18,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 683 states have (on average 1.8433382137628112) internal successors, (1259), 684 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:18,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 1259 transitions. [2022-10-15 17:19:18,954 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 1259 transitions. Word has length 130 [2022-10-15 17:19:18,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:18,957 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 1259 transitions. [2022-10-15 17:19:18,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:18,958 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 1259 transitions. [2022-10-15 17:19:18,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-10-15 17:19:18,963 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:18,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:18,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:19:18,964 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:18,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:18,965 INFO L85 PathProgramCache]: Analyzing trace with hash 376933655, now seen corresponding path program 1 times [2022-10-15 17:19:18,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:18,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109545215] [2022-10-15 17:19:18,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:18,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:19,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:19,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:19,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109545215] [2022-10-15 17:19:19,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109545215] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:19,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:19,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:19:19,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015632101] [2022-10-15 17:19:19,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:19,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:19:19,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:19,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:19:19,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:19:19,696 INFO L87 Difference]: Start difference. First operand 685 states and 1259 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:19,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:19,827 INFO L93 Difference]: Finished difference Result 688 states and 1261 transitions. [2022-10-15 17:19:19,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:19:19,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2022-10-15 17:19:19,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:19,834 INFO L225 Difference]: With dead ends: 688 [2022-10-15 17:19:19,834 INFO L226 Difference]: Without dead ends: 685 [2022-10-15 17:19:19,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:19:19,837 INFO L413 NwaCegarLoop]: 1257 mSDtfsCounter, 3 mSDsluCounter, 3728 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4985 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:19,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4985 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:19,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2022-10-15 17:19:19,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 685. [2022-10-15 17:19:19,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 683 states have (on average 1.7847730600292826) internal successors, (1219), 684 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:19,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 1219 transitions. [2022-10-15 17:19:19,860 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 1219 transitions. Word has length 130 [2022-10-15 17:19:19,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:19,861 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 1219 transitions. [2022-10-15 17:19:19,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:19,865 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 1219 transitions. [2022-10-15 17:19:19,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-10-15 17:19:19,873 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:19,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:19,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:19:19,875 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:19,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:19,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1915610902, now seen corresponding path program 1 times [2022-10-15 17:19:19,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:19,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463004589] [2022-10-15 17:19:19,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:19,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:20,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:20,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:20,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463004589] [2022-10-15 17:19:20,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463004589] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:20,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:20,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:20,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495847783] [2022-10-15 17:19:20,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:20,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:20,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:20,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:20,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:20,221 INFO L87 Difference]: Start difference. First operand 685 states and 1219 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:20,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:20,266 INFO L93 Difference]: Finished difference Result 841 states and 1489 transitions. [2022-10-15 17:19:20,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:20,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2022-10-15 17:19:20,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:20,278 INFO L225 Difference]: With dead ends: 841 [2022-10-15 17:19:20,278 INFO L226 Difference]: Without dead ends: 841 [2022-10-15 17:19:20,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:20,289 INFO L413 NwaCegarLoop]: 1217 mSDtfsCounter, 269 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:20,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 2430 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:20,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2022-10-15 17:19:20,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 686. [2022-10-15 17:19:20,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 684 states have (on average 1.7836257309941521) internal successors, (1220), 685 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:20,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1220 transitions. [2022-10-15 17:19:20,329 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1220 transitions. Word has length 169 [2022-10-15 17:19:20,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:20,331 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 1220 transitions. [2022-10-15 17:19:20,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:20,332 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1220 transitions. [2022-10-15 17:19:20,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-10-15 17:19:20,338 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:20,339 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:20,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:19:20,340 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:20,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:20,341 INFO L85 PathProgramCache]: Analyzing trace with hash -63327919, now seen corresponding path program 1 times [2022-10-15 17:19:20,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:20,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755433006] [2022-10-15 17:19:20,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:20,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:20,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:20,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:20,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755433006] [2022-10-15 17:19:20,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755433006] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:20,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:20,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:20,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937126048] [2022-10-15 17:19:20,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:20,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:20,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:20,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:20,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:20,761 INFO L87 Difference]: Start difference. First operand 686 states and 1220 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:20,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:20,828 INFO L93 Difference]: Finished difference Result 832 states and 1463 transitions. [2022-10-15 17:19:20,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:20,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 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 192 [2022-10-15 17:19:20,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:20,834 INFO L225 Difference]: With dead ends: 832 [2022-10-15 17:19:20,835 INFO L226 Difference]: Without dead ends: 832 [2022-10-15 17:19:20,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:20,837 INFO L413 NwaCegarLoop]: 1431 mSDtfsCounter, 240 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 2606 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:20,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 2606 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:20,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-10-15 17:19:20,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 827. [2022-10-15 17:19:20,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 825 states have (on average 1.7696969696969698) internal successors, (1460), 826 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:20,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1460 transitions. [2022-10-15 17:19:20,866 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1460 transitions. Word has length 192 [2022-10-15 17:19:20,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:20,867 INFO L495 AbstractCegarLoop]: Abstraction has 827 states and 1460 transitions. [2022-10-15 17:19:20,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:20,868 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1460 transitions. [2022-10-15 17:19:20,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-10-15 17:19:20,872 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:20,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:20,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:19:20,873 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:20,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:20,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1559342006, now seen corresponding path program 1 times [2022-10-15 17:19:20,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:20,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258857513] [2022-10-15 17:19:20,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:20,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:21,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:21,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:21,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258857513] [2022-10-15 17:19:21,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258857513] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:21,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:21,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:21,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757671660] [2022-10-15 17:19:21,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:21,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:21,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:21,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:21,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:21,130 INFO L87 Difference]: Start difference. First operand 827 states and 1460 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:21,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:21,181 INFO L93 Difference]: Finished difference Result 962 states and 1689 transitions. [2022-10-15 17:19:21,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:21,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2022-10-15 17:19:21,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:21,188 INFO L225 Difference]: With dead ends: 962 [2022-10-15 17:19:21,189 INFO L226 Difference]: Without dead ends: 962 [2022-10-15 17:19:21,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:21,195 INFO L413 NwaCegarLoop]: 1436 mSDtfsCounter, 249 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:21,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 2618 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:21,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-10-15 17:19:21,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 957. [2022-10-15 17:19:21,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 955 states have (on average 1.7654450261780106) internal successors, (1686), 956 states have internal predecessors, (1686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:21,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1686 transitions. [2022-10-15 17:19:21,236 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1686 transitions. Word has length 196 [2022-10-15 17:19:21,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:21,237 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1686 transitions. [2022-10-15 17:19:21,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:21,238 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1686 transitions. [2022-10-15 17:19:21,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-10-15 17:19:21,242 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:21,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:21,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:19:21,244 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:21,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:21,244 INFO L85 PathProgramCache]: Analyzing trace with hash 2005005805, now seen corresponding path program 1 times [2022-10-15 17:19:21,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:21,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881802207] [2022-10-15 17:19:21,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:21,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:21,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:21,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:21,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881802207] [2022-10-15 17:19:21,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881802207] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:21,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:21,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:21,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151440495] [2022-10-15 17:19:21,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:21,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:21,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:21,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:21,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:21,602 INFO L87 Difference]: Start difference. First operand 957 states and 1686 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:21,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:21,658 INFO L93 Difference]: Finished difference Result 1353 states and 2358 transitions. [2022-10-15 17:19:21,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:21,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2022-10-15 17:19:21,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:21,667 INFO L225 Difference]: With dead ends: 1353 [2022-10-15 17:19:21,668 INFO L226 Difference]: Without dead ends: 1353 [2022-10-15 17:19:21,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:21,672 INFO L413 NwaCegarLoop]: 1419 mSDtfsCounter, 240 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 2603 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 [2022-10-15 17:19:21,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 2603 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:21,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2022-10-15 17:19:21,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1348. [2022-10-15 17:19:21,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1348 states, 1346 states have (on average 1.74962852897474) internal successors, (2355), 1347 states have internal predecessors, (2355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:21,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 2355 transitions. [2022-10-15 17:19:21,752 INFO L78 Accepts]: Start accepts. Automaton has 1348 states and 2355 transitions. Word has length 196 [2022-10-15 17:19:21,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:21,753 INFO L495 AbstractCegarLoop]: Abstraction has 1348 states and 2355 transitions. [2022-10-15 17:19:21,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:21,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1348 states and 2355 transitions. [2022-10-15 17:19:21,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-10-15 17:19:21,758 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:21,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:21,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:19:21,759 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:21,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:21,759 INFO L85 PathProgramCache]: Analyzing trace with hash 703257958, now seen corresponding path program 1 times [2022-10-15 17:19:21,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:21,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430552551] [2022-10-15 17:19:21,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:21,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:22,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:22,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:22,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430552551] [2022-10-15 17:19:22,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430552551] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:22,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:22,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:22,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342874479] [2022-10-15 17:19:22,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:22,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:22,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:22,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:22,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:22,040 INFO L87 Difference]: Start difference. First operand 1348 states and 2355 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:22,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:22,085 INFO L93 Difference]: Finished difference Result 1718 states and 2982 transitions. [2022-10-15 17:19:22,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:22,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 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 200 [2022-10-15 17:19:22,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:22,097 INFO L225 Difference]: With dead ends: 1718 [2022-10-15 17:19:22,097 INFO L226 Difference]: Without dead ends: 1718 [2022-10-15 17:19:22,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:22,102 INFO L413 NwaCegarLoop]: 1411 mSDtfsCounter, 241 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:22,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 2594 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:22,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-10-15 17:19:22,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1713. [2022-10-15 17:19:22,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1711 states have (on average 1.7410870835768557) internal successors, (2979), 1712 states have internal predecessors, (2979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:22,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2979 transitions. [2022-10-15 17:19:22,157 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2979 transitions. Word has length 200 [2022-10-15 17:19:22,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:22,157 INFO L495 AbstractCegarLoop]: Abstraction has 1713 states and 2979 transitions. [2022-10-15 17:19:22,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:22,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2979 transitions. [2022-10-15 17:19:22,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-10-15 17:19:22,162 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:22,162 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:22,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:19:22,163 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:22,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:22,163 INFO L85 PathProgramCache]: Analyzing trace with hash 2120140937, now seen corresponding path program 1 times [2022-10-15 17:19:22,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:22,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407780922] [2022-10-15 17:19:22,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:22,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:22,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:22,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:22,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407780922] [2022-10-15 17:19:22,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407780922] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:22,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:22,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:22,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398296387] [2022-10-15 17:19:22,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:22,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:22,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:22,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:22,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:22,460 INFO L87 Difference]: Start difference. First operand 1713 states and 2979 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:22,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:22,549 INFO L93 Difference]: Finished difference Result 2783 states and 4788 transitions. [2022-10-15 17:19:22,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:22,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 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 200 [2022-10-15 17:19:22,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:22,568 INFO L225 Difference]: With dead ends: 2783 [2022-10-15 17:19:22,569 INFO L226 Difference]: Without dead ends: 2783 [2022-10-15 17:19:22,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:22,571 INFO L413 NwaCegarLoop]: 1395 mSDtfsCounter, 232 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2580 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 [2022-10-15 17:19:22,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 2580 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:22,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2022-10-15 17:19:22,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2778. [2022-10-15 17:19:22,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2778 states, 2776 states have (on average 1.7237031700288183) internal successors, (4785), 2777 states have internal predecessors, (4785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:22,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2778 states to 2778 states and 4785 transitions. [2022-10-15 17:19:22,709 INFO L78 Accepts]: Start accepts. Automaton has 2778 states and 4785 transitions. Word has length 200 [2022-10-15 17:19:22,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:22,711 INFO L495 AbstractCegarLoop]: Abstraction has 2778 states and 4785 transitions. [2022-10-15 17:19:22,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:22,712 INFO L276 IsEmpty]: Start isEmpty. Operand 2778 states and 4785 transitions. [2022-10-15 17:19:22,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-10-15 17:19:22,719 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:22,719 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:22,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:19:22,720 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:22,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:22,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1916941442, now seen corresponding path program 1 times [2022-10-15 17:19:22,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:22,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83938055] [2022-10-15 17:19:22,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:22,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:22,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:22,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:22,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83938055] [2022-10-15 17:19:22,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83938055] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:22,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:22,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:22,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087420225] [2022-10-15 17:19:22,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:22,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:22,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:22,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:22,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:22,977 INFO L87 Difference]: Start difference. First operand 2778 states and 4785 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:23,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:23,038 INFO L93 Difference]: Finished difference Result 3738 states and 6411 transitions. [2022-10-15 17:19:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:23,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 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 204 [2022-10-15 17:19:23,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:23,059 INFO L225 Difference]: With dead ends: 3738 [2022-10-15 17:19:23,060 INFO L226 Difference]: Without dead ends: 3738 [2022-10-15 17:19:23,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:23,061 INFO L413 NwaCegarLoop]: 1386 mSDtfsCounter, 233 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:23,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 2570 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:23,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3738 states. [2022-10-15 17:19:23,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3738 to 3733. [2022-10-15 17:19:23,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3733 states, 3731 states have (on average 1.717502010184937) internal successors, (6408), 3732 states have internal predecessors, (6408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:23,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3733 states to 3733 states and 6408 transitions. [2022-10-15 17:19:23,173 INFO L78 Accepts]: Start accepts. Automaton has 3733 states and 6408 transitions. Word has length 204 [2022-10-15 17:19:23,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:23,174 INFO L495 AbstractCegarLoop]: Abstraction has 3733 states and 6408 transitions. [2022-10-15 17:19:23,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:23,175 INFO L276 IsEmpty]: Start isEmpty. Operand 3733 states and 6408 transitions. [2022-10-15 17:19:23,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-10-15 17:19:23,178 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:23,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:23,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:19:23,179 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:23,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:23,179 INFO L85 PathProgramCache]: Analyzing trace with hash -111728347, now seen corresponding path program 1 times [2022-10-15 17:19:23,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:23,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576941402] [2022-10-15 17:19:23,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:23,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:23,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:23,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:23,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576941402] [2022-10-15 17:19:23,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576941402] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:23,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:23,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:23,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502272058] [2022-10-15 17:19:23,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:23,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:23,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:23,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:23,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:23,456 INFO L87 Difference]: Start difference. First operand 3733 states and 6408 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:23,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:23,535 INFO L93 Difference]: Finished difference Result 6609 states and 11226 transitions. [2022-10-15 17:19:23,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:23,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 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 204 [2022-10-15 17:19:23,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:23,572 INFO L225 Difference]: With dead ends: 6609 [2022-10-15 17:19:23,573 INFO L226 Difference]: Without dead ends: 6609 [2022-10-15 17:19:23,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:23,574 INFO L413 NwaCegarLoop]: 1371 mSDtfsCounter, 224 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2557 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 [2022-10-15 17:19:23,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 2557 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:23,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6609 states. [2022-10-15 17:19:23,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6609 to 6604. [2022-10-15 17:19:23,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6604 states, 6602 states have (on average 1.6999394122993032) internal successors, (11223), 6603 states have internal predecessors, (11223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:23,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6604 states to 6604 states and 11223 transitions. [2022-10-15 17:19:23,825 INFO L78 Accepts]: Start accepts. Automaton has 6604 states and 11223 transitions. Word has length 204 [2022-10-15 17:19:23,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:23,826 INFO L495 AbstractCegarLoop]: Abstraction has 6604 states and 11223 transitions. [2022-10-15 17:19:23,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:23,827 INFO L276 IsEmpty]: Start isEmpty. Operand 6604 states and 11223 transitions. [2022-10-15 17:19:23,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-10-15 17:19:23,834 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:23,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:23,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:19:23,835 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:23,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:23,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1237014942, now seen corresponding path program 1 times [2022-10-15 17:19:23,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:23,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973606010] [2022-10-15 17:19:23,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:23,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:24,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:24,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:24,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973606010] [2022-10-15 17:19:24,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973606010] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:24,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:24,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:24,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615555655] [2022-10-15 17:19:24,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:24,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:24,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:24,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:24,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:24,124 INFO L87 Difference]: Start difference. First operand 6604 states and 11223 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:24,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:24,274 INFO L93 Difference]: Finished difference Result 9118 states and 15444 transitions. [2022-10-15 17:19:24,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:24,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 208 [2022-10-15 17:19:24,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:24,317 INFO L225 Difference]: With dead ends: 9118 [2022-10-15 17:19:24,317 INFO L226 Difference]: Without dead ends: 9118 [2022-10-15 17:19:24,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:24,318 INFO L413 NwaCegarLoop]: 1361 mSDtfsCounter, 225 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:24,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 2546 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:24,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9118 states. [2022-10-15 17:19:24,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9118 to 9113. [2022-10-15 17:19:24,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9113 states, 9111 states have (on average 1.694764570299638) internal successors, (15441), 9112 states have internal predecessors, (15441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:24,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9113 states to 9113 states and 15441 transitions. [2022-10-15 17:19:24,610 INFO L78 Accepts]: Start accepts. Automaton has 9113 states and 15441 transitions. Word has length 208 [2022-10-15 17:19:24,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:24,611 INFO L495 AbstractCegarLoop]: Abstraction has 9113 states and 15441 transitions. [2022-10-15 17:19:24,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:24,612 INFO L276 IsEmpty]: Start isEmpty. Operand 9113 states and 15441 transitions. [2022-10-15 17:19:24,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-10-15 17:19:24,616 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:24,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:24,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:19:24,617 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:24,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:24,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1536026687, now seen corresponding path program 1 times [2022-10-15 17:19:24,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:24,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389487447] [2022-10-15 17:19:24,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:24,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:24,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:24,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389487447] [2022-10-15 17:19:24,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389487447] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:24,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:24,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:24,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149337772] [2022-10-15 17:19:24,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:24,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:24,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:24,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:24,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:24,870 INFO L87 Difference]: Start difference. First operand 9113 states and 15441 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:25,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:25,043 INFO L93 Difference]: Finished difference Result 16759 states and 28080 transitions. [2022-10-15 17:19:25,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:25,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 208 [2022-10-15 17:19:25,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:25,192 INFO L225 Difference]: With dead ends: 16759 [2022-10-15 17:19:25,192 INFO L226 Difference]: Without dead ends: 16759 [2022-10-15 17:19:25,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:25,196 INFO L413 NwaCegarLoop]: 1347 mSDtfsCounter, 216 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2534 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 [2022-10-15 17:19:25,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 2534 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:25,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16759 states. [2022-10-15 17:19:25,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16759 to 16754. [2022-10-15 17:19:25,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16754 states, 16752 states have (on average 1.676038681948424) internal successors, (28077), 16753 states have internal predecessors, (28077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:25,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16754 states to 16754 states and 28077 transitions. [2022-10-15 17:19:25,741 INFO L78 Accepts]: Start accepts. Automaton has 16754 states and 28077 transitions. Word has length 208 [2022-10-15 17:19:25,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:25,742 INFO L495 AbstractCegarLoop]: Abstraction has 16754 states and 28077 transitions. [2022-10-15 17:19:25,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:25,743 INFO L276 IsEmpty]: Start isEmpty. Operand 16754 states and 28077 transitions. [2022-10-15 17:19:25,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-10-15 17:19:25,748 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:25,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:25,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:19:25,750 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:25,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:25,751 INFO L85 PathProgramCache]: Analyzing trace with hash -511882054, now seen corresponding path program 1 times [2022-10-15 17:19:25,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:25,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183770208] [2022-10-15 17:19:25,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:25,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:26,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:26,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:26,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183770208] [2022-10-15 17:19:26,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183770208] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:26,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:26,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:19:26,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722353956] [2022-10-15 17:19:26,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:26,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:19:26,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:26,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:19:26,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:26,085 INFO L87 Difference]: Start difference. First operand 16754 states and 28077 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:26,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:26,262 INFO L93 Difference]: Finished difference Result 23282 states and 38877 transitions. [2022-10-15 17:19:26,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:19:26,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2022-10-15 17:19:26,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:26,328 INFO L225 Difference]: With dead ends: 23282 [2022-10-15 17:19:26,328 INFO L226 Difference]: Without dead ends: 23282 [2022-10-15 17:19:26,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:19:26,331 INFO L413 NwaCegarLoop]: 1336 mSDtfsCounter, 217 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 2522 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:26,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 2522 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:26,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23282 states. [2022-10-15 17:19:26,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23282 to 23277. [2022-10-15 17:19:26,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23277 states, 23275 states have (on average 1.670204081632653) internal successors, (38874), 23276 states have internal predecessors, (38874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:27,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23277 states to 23277 states and 38874 transitions. [2022-10-15 17:19:27,011 INFO L78 Accepts]: Start accepts. Automaton has 23277 states and 38874 transitions. Word has length 212 [2022-10-15 17:19:27,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:27,012 INFO L495 AbstractCegarLoop]: Abstraction has 23277 states and 38874 transitions. [2022-10-15 17:19:27,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:27,013 INFO L276 IsEmpty]: Start isEmpty. Operand 23277 states and 38874 transitions. [2022-10-15 17:19:27,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-10-15 17:19:27,017 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:27,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:27,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:19:27,018 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:27,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:27,018 INFO L85 PathProgramCache]: Analyzing trace with hash -818506659, now seen corresponding path program 1 times [2022-10-15 17:19:27,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:27,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593283664] [2022-10-15 17:19:27,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:27,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:27,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:27,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:27,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593283664] [2022-10-15 17:19:27,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593283664] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:27,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:27,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:19:27,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592669619] [2022-10-15 17:19:27,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:27,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:19:27,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:27,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:19:27,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:19:27,647 INFO L87 Difference]: Start difference. First operand 23277 states and 38874 transitions. Second operand has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:29,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:29,458 INFO L93 Difference]: Finished difference Result 158025 states and 263865 transitions. [2022-10-15 17:19:29,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 17:19:29,458 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2022-10-15 17:19:29,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:30,153 INFO L225 Difference]: With dead ends: 158025 [2022-10-15 17:19:30,154 INFO L226 Difference]: Without dead ends: 158025 [2022-10-15 17:19:30,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-10-15 17:19:30,155 INFO L413 NwaCegarLoop]: 1230 mSDtfsCounter, 2735 mSDsluCounter, 10679 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2735 SdHoareTripleChecker+Valid, 11909 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:30,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2735 Valid, 11909 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:19:30,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158025 states. [2022-10-15 17:19:32,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158025 to 45540. [2022-10-15 17:19:32,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45540 states, 45538 states have (on average 1.6633141552110327) internal successors, (75744), 45539 states have internal predecessors, (75744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:32,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45540 states to 45540 states and 75744 transitions. [2022-10-15 17:19:32,868 INFO L78 Accepts]: Start accepts. Automaton has 45540 states and 75744 transitions. Word has length 212 [2022-10-15 17:19:32,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:32,869 INFO L495 AbstractCegarLoop]: Abstraction has 45540 states and 75744 transitions. [2022-10-15 17:19:32,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.285714285714285) internal successors, (212), 7 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:32,870 INFO L276 IsEmpty]: Start isEmpty. Operand 45540 states and 75744 transitions. [2022-10-15 17:19:32,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-10-15 17:19:32,879 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:32,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:32,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:19:32,880 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:32,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:32,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1870282202, now seen corresponding path program 1 times [2022-10-15 17:19:32,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:32,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132549384] [2022-10-15 17:19:32,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:32,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:33,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:33,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:33,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132549384] [2022-10-15 17:19:33,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132549384] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:33,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:33,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:19:33,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006175397] [2022-10-15 17:19:33,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:33,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:19:33,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:33,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:19:33,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:19:33,221 INFO L87 Difference]: Start difference. First operand 45540 states and 75744 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:34,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:34,053 INFO L93 Difference]: Finished difference Result 105748 states and 176473 transitions. [2022-10-15 17:19:34,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:19:34,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 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 213 [2022-10-15 17:19:34,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:34,411 INFO L225 Difference]: With dead ends: 105748 [2022-10-15 17:19:34,411 INFO L226 Difference]: Without dead ends: 105748 [2022-10-15 17:19:34,412 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 [2022-10-15 17:19:34,412 INFO L413 NwaCegarLoop]: 1215 mSDtfsCounter, 785 mSDsluCounter, 2636 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 3851 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 [2022-10-15 17:19:34,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 3851 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:34,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105748 states. [2022-10-15 17:19:36,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105748 to 75478. [2022-10-15 17:19:36,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75478 states, 75476 states have (on average 1.663336689808681) internal successors, (125542), 75477 states have internal predecessors, (125542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:36,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75478 states to 75478 states and 125542 transitions. [2022-10-15 17:19:36,777 INFO L78 Accepts]: Start accepts. Automaton has 75478 states and 125542 transitions. Word has length 213 [2022-10-15 17:19:36,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:36,778 INFO L495 AbstractCegarLoop]: Abstraction has 75478 states and 125542 transitions. [2022-10-15 17:19:36,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:36,778 INFO L276 IsEmpty]: Start isEmpty. Operand 75478 states and 125542 transitions. [2022-10-15 17:19:36,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-10-15 17:19:36,782 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:36,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:36,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:19:36,783 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:36,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:37,085 INFO L85 PathProgramCache]: Analyzing trace with hash 53418676, now seen corresponding path program 1 times [2022-10-15 17:19:37,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:37,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206417444] [2022-10-15 17:19:37,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:37,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:37,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:37,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:37,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206417444] [2022-10-15 17:19:37,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206417444] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:37,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:37,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:19:37,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926737580] [2022-10-15 17:19:37,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:37,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:19:37,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:37,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:19:37,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:19:37,533 INFO L87 Difference]: Start difference. First operand 75478 states and 125542 transitions. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:38,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:38,845 INFO L93 Difference]: Finished difference Result 174042 states and 289337 transitions. [2022-10-15 17:19:38,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:19:38,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2022-10-15 17:19:38,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:39,655 INFO L225 Difference]: With dead ends: 174042 [2022-10-15 17:19:39,655 INFO L226 Difference]: Without dead ends: 174042 [2022-10-15 17:19:39,655 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 [2022-10-15 17:19:39,656 INFO L413 NwaCegarLoop]: 1208 mSDtfsCounter, 783 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 3846 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 [2022-10-15 17:19:39,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 3846 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:39,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174042 states. [2022-10-15 17:19:42,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174042 to 124488. [2022-10-15 17:19:42,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124488 states, 124486 states have (on average 1.658837138312742) internal successors, (206502), 124487 states have internal predecessors, (206502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:43,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124488 states to 124488 states and 206502 transitions. [2022-10-15 17:19:43,387 INFO L78 Accepts]: Start accepts. Automaton has 124488 states and 206502 transitions. Word has length 214 [2022-10-15 17:19:43,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:43,387 INFO L495 AbstractCegarLoop]: Abstraction has 124488 states and 206502 transitions. [2022-10-15 17:19:43,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:43,388 INFO L276 IsEmpty]: Start isEmpty. Operand 124488 states and 206502 transitions. [2022-10-15 17:19:43,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-10-15 17:19:43,398 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:43,399 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:43,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:19:43,399 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:43,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:43,400 INFO L85 PathProgramCache]: Analyzing trace with hash -272391907, now seen corresponding path program 1 times [2022-10-15 17:19:43,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:43,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541660616] [2022-10-15 17:19:43,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:43,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:44,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:44,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:44,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541660616] [2022-10-15 17:19:44,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541660616] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:44,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:44,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:19:44,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825602] [2022-10-15 17:19:44,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:44,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:19:44,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:44,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:19:44,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:19:44,122 INFO L87 Difference]: Start difference. First operand 124488 states and 206502 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:45,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:45,600 INFO L93 Difference]: Finished difference Result 286576 states and 475203 transitions. [2022-10-15 17:19:45,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:19:45,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 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 215 [2022-10-15 17:19:45,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:46,216 INFO L225 Difference]: With dead ends: 286576 [2022-10-15 17:19:46,216 INFO L226 Difference]: Without dead ends: 286576 [2022-10-15 17:19:46,231 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 [2022-10-15 17:19:46,234 INFO L413 NwaCegarLoop]: 1208 mSDtfsCounter, 781 mSDsluCounter, 2640 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:19:46,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 3848 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:19:46,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286576 states. [2022-10-15 17:19:50,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286576 to 205086. [2022-10-15 17:19:50,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205086 states, 205084 states have (on average 1.654473288993778) internal successors, (339306), 205085 states have internal predecessors, (339306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:51,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205086 states to 205086 states and 339306 transitions. [2022-10-15 17:19:51,896 INFO L78 Accepts]: Start accepts. Automaton has 205086 states and 339306 transitions. Word has length 215 [2022-10-15 17:19:51,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:19:51,904 INFO L495 AbstractCegarLoop]: Abstraction has 205086 states and 339306 transitions. [2022-10-15 17:19:51,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:51,905 INFO L276 IsEmpty]: Start isEmpty. Operand 205086 states and 339306 transitions. [2022-10-15 17:19:51,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-10-15 17:19:51,910 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:19:51,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:19:51,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:19:51,910 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:19:51,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:19:51,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1613581045, now seen corresponding path program 1 times [2022-10-15 17:19:51,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:19:51,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69317184] [2022-10-15 17:19:51,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:19:51,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:19:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:19:52,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:19:52,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:19:52,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69317184] [2022-10-15 17:19:52,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69317184] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:19:52,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:19:52,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:19:52,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168139094] [2022-10-15 17:19:52,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:19:52,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:19:52,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:19:52,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:19:52,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:19:52,223 INFO L87 Difference]: Start difference. First operand 205086 states and 339306 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:19:55,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:19:55,052 INFO L93 Difference]: Finished difference Result 469714 states and 776933 transitions. [2022-10-15 17:19:55,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:19:55,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 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 216 [2022-10-15 17:19:55,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:19:56,077 INFO L225 Difference]: With dead ends: 469714 [2022-10-15 17:19:56,077 INFO L226 Difference]: Without dead ends: 469714 [2022-10-15 17:19:56,078 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 [2022-10-15 17:19:56,078 INFO L413 NwaCegarLoop]: 1208 mSDtfsCounter, 779 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 3850 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 [2022-10-15 17:19:56,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 3850 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:19:56,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469714 states.