/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/systemc/mem_slave_tlm.3.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:49:04,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:49:04,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:49:04,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:49:04,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:49:04,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:49:04,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:49:04,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:49:04,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:49:04,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:49:04,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:49:04,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:49:04,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:49:04,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:49:04,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:49:04,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:49:04,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:49:04,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:49:04,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:49:04,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:49:04,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:49:04,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:49:04,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:49:04,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:49:04,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:49:04,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 17:49:04,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 17:49:04,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 17:49:04,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 17:49:04,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 17:49:04,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 17:49:04,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 17:49:04,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 17:49:04,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:49:04,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:49:04,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:49:04,916 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 17:49:04,958 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:49:04,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:49:04,959 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:49:04,959 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:49:04,960 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:49:04,961 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:49:04,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:49:04,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:49:04,962 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:49:04,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:49:04,963 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:49:04,963 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:49:04,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:49:04,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:49:04,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:49:04,964 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:49:04,965 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:49:04,965 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:49:04,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:49:04,966 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:49:04,966 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:49:04,966 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:49:04,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:49:04,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:49:04,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:49:04,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:49:04,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:49:04,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:49:04,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:49:04,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:49:04,969 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:49:05,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:49:05,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:49:05,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:49:05,416 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:49:05,417 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:49:05,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/mem_slave_tlm.3.cil.c [2022-10-15 17:49:05,509 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa478b68f/21eb1a257fd84eccbcca3e0769e7a054/FLAGaa6529902 [2022-10-15 17:49:06,310 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:49:06,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/mem_slave_tlm.3.cil.c [2022-10-15 17:49:06,332 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa478b68f/21eb1a257fd84eccbcca3e0769e7a054/FLAGaa6529902 [2022-10-15 17:49:06,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa478b68f/21eb1a257fd84eccbcca3e0769e7a054 [2022-10-15 17:49:06,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:49:06,580 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:49:06,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:49:06,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:49:06,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:49:06,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:49:06" (1/1) ... [2022-10-15 17:49:06,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e8242c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:06, skipping insertion in model container [2022-10-15 17:49:06,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:49:06" (1/1) ... [2022-10-15 17:49:06,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:49:06,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:49:06,948 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/systemc/mem_slave_tlm.3.cil.c[646,659] [2022-10-15 17:49:07,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:49:07,140 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:49:07,155 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/systemc/mem_slave_tlm.3.cil.c[646,659] [2022-10-15 17:49:07,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:49:07,322 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:49:07,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:07 WrapperNode [2022-10-15 17:49:07,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:49:07,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:49:07,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:49:07,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:49:07,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:07" (1/1) ... [2022-10-15 17:49:07,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:07" (1/1) ... [2022-10-15 17:49:07,410 INFO L138 Inliner]: procedures = 19, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 856 [2022-10-15 17:49:07,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:49:07,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:49:07,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:49:07,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:49:07,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:07" (1/1) ... [2022-10-15 17:49:07,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:07" (1/1) ... [2022-10-15 17:49:07,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:07" (1/1) ... [2022-10-15 17:49:07,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:07" (1/1) ... [2022-10-15 17:49:07,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:07" (1/1) ... [2022-10-15 17:49:07,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:07" (1/1) ... [2022-10-15 17:49:07,508 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:07" (1/1) ... [2022-10-15 17:49:07,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:07" (1/1) ... [2022-10-15 17:49:07,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:49:07,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:49:07,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:49:07,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:49:07,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:07" (1/1) ... [2022-10-15 17:49:07,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:49:07,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:07,607 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 17:49:07,610 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 17:49:07,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:49:07,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:49:07,663 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-10-15 17:49:07,663 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-10-15 17:49:07,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:49:07,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:49:07,775 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:49:07,778 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:49:08,789 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:49:08,801 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:49:08,802 INFO L300 CfgBuilder]: Removed 13 assume(true) statements. [2022-10-15 17:49:08,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:49:08 BoogieIcfgContainer [2022-10-15 17:49:08,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:49:08,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:49:08,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:49:08,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:49:08,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:49:06" (1/3) ... [2022-10-15 17:49:08,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e46473a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:49:08, skipping insertion in model container [2022-10-15 17:49:08,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:49:07" (2/3) ... [2022-10-15 17:49:08,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e46473a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:49:08, skipping insertion in model container [2022-10-15 17:49:08,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:49:08" (3/3) ... [2022-10-15 17:49:08,816 INFO L112 eAbstractionObserver]: Analyzing ICFG mem_slave_tlm.3.cil.c [2022-10-15 17:49:08,841 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:49:08,841 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:49:08,909 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:49:08,919 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;@3ae38778, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:49:08,919 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:49:08,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 276 states, 267 states have (on average 1.857677902621723) internal successors, (496), 274 states have internal predecessors, (496), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-15 17:49:08,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 17:49:08,939 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:08,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:08,942 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:08,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:08,952 INFO L85 PathProgramCache]: Analyzing trace with hash -146975298, now seen corresponding path program 1 times [2022-10-15 17:49:08,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:08,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236117520] [2022-10-15 17:49:08,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:08,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,264 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 17:49:09,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:09,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236117520] [2022-10-15 17:49:09,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236117520] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:09,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:09,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:49:09,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006229800] [2022-10-15 17:49:09,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:09,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:09,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:09,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:09,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:49:09,326 INFO L87 Difference]: Start difference. First operand has 276 states, 267 states have (on average 1.857677902621723) internal successors, (496), 274 states have internal predecessors, (496), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states 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 17:49:09,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:09,712 INFO L93 Difference]: Finished difference Result 456 states and 709 transitions. [2022-10-15 17:49:09,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:09,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-10-15 17:49:09,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:09,733 INFO L225 Difference]: With dead ends: 456 [2022-10-15 17:49:09,733 INFO L226 Difference]: Without dead ends: 452 [2022-10-15 17:49:09,736 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 17:49:09,741 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 264 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:09,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 783 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:49:09,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-10-15 17:49:09,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 436. [2022-10-15 17:49:09,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 429 states have (on average 1.599067599067599) internal successors, (686), 434 states have internal predecessors, (686), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:09,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 691 transitions. [2022-10-15 17:49:09,861 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 691 transitions. Word has length 11 [2022-10-15 17:49:09,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:09,861 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 691 transitions. [2022-10-15 17:49:09,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states 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 17:49:09,862 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 691 transitions. [2022-10-15 17:49:09,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 17:49:09,864 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:09,864 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] [2022-10-15 17:49:09,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:49:09,865 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:09,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:09,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1740042924, now seen corresponding path program 1 times [2022-10-15 17:49:09,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:09,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284437777] [2022-10-15 17:49:09,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:09,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:09,984 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 17:49:09,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:09,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284437777] [2022-10-15 17:49:09,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284437777] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:09,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:09,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:49:09,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839215743] [2022-10-15 17:49:09,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:09,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:09,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:09,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:09,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:49:09,992 INFO L87 Difference]: Start difference. First operand 436 states and 691 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states 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 17:49:10,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:10,118 INFO L93 Difference]: Finished difference Result 721 states and 1161 transitions. [2022-10-15 17:49:10,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:10,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2022-10-15 17:49:10,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:10,125 INFO L225 Difference]: With dead ends: 721 [2022-10-15 17:49:10,125 INFO L226 Difference]: Without dead ends: 721 [2022-10-15 17:49:10,126 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 17:49:10,128 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 327 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:10,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 1030 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:10,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2022-10-15 17:49:10,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 708. [2022-10-15 17:49:10,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 701 states have (on average 1.6319543509272467) internal successors, (1144), 706 states have internal predecessors, (1144), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:10,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1149 transitions. [2022-10-15 17:49:10,179 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1149 transitions. Word has length 30 [2022-10-15 17:49:10,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:10,180 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 1149 transitions. [2022-10-15 17:49:10,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states 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 17:49:10,181 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1149 transitions. [2022-10-15 17:49:10,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 17:49:10,187 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:10,188 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] [2022-10-15 17:49:10,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:49:10,188 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:10,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:10,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1230569834, now seen corresponding path program 1 times [2022-10-15 17:49:10,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:10,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650920708] [2022-10-15 17:49:10,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:10,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,317 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 17:49:10,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:10,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650920708] [2022-10-15 17:49:10,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650920708] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:10,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:10,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:49:10,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020152004] [2022-10-15 17:49:10,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:10,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:10,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:10,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:10,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:49:10,322 INFO L87 Difference]: Start difference. First operand 708 states and 1149 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states 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 17:49:10,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:10,340 INFO L93 Difference]: Finished difference Result 697 states and 1132 transitions. [2022-10-15 17:49:10,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:10,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2022-10-15 17:49:10,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:10,346 INFO L225 Difference]: With dead ends: 697 [2022-10-15 17:49:10,347 INFO L226 Difference]: Without dead ends: 697 [2022-10-15 17:49:10,347 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 17:49:10,349 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 450 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:10,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 451 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:10,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2022-10-15 17:49:10,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2022-10-15 17:49:10,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 690 states have (on average 1.6333333333333333) internal successors, (1127), 695 states have internal predecessors, (1127), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:10,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 1132 transitions. [2022-10-15 17:49:10,378 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 1132 transitions. Word has length 30 [2022-10-15 17:49:10,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:10,378 INFO L495 AbstractCegarLoop]: Abstraction has 697 states and 1132 transitions. [2022-10-15 17:49:10,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states 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 17:49:10,379 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 1132 transitions. [2022-10-15 17:49:10,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-15 17:49:10,383 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:10,383 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] [2022-10-15 17:49:10,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:49:10,384 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:10,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:10,385 INFO L85 PathProgramCache]: Analyzing trace with hash 639754357, now seen corresponding path program 1 times [2022-10-15 17:49:10,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:10,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122368270] [2022-10-15 17:49:10,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:10,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,553 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 17:49:10,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:10,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122368270] [2022-10-15 17:49:10,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122368270] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:10,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:10,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:49:10,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338615979] [2022-10-15 17:49:10,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:10,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:10,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:10,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:10,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:49:10,561 INFO L87 Difference]: Start difference. First operand 697 states and 1132 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:10,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:10,604 INFO L93 Difference]: Finished difference Result 1092 states and 1756 transitions. [2022-10-15 17:49:10,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:10,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-10-15 17:49:10,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:10,614 INFO L225 Difference]: With dead ends: 1092 [2022-10-15 17:49:10,614 INFO L226 Difference]: Without dead ends: 1092 [2022-10-15 17:49:10,615 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 17:49:10,627 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 355 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:10,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 818 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:10,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2022-10-15 17:49:10,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1078. [2022-10-15 17:49:10,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1071 states have (on average 1.6237161531279178) internal successors, (1739), 1076 states have internal predecessors, (1739), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:10,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1744 transitions. [2022-10-15 17:49:10,671 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1744 transitions. Word has length 40 [2022-10-15 17:49:10,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:10,672 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1744 transitions. [2022-10-15 17:49:10,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:10,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1744 transitions. [2022-10-15 17:49:10,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-15 17:49:10,677 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:10,678 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:10,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:49:10,678 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:10,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:10,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1502582855, now seen corresponding path program 1 times [2022-10-15 17:49:10,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:10,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649483722] [2022-10-15 17:49:10,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:10,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:10,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:10,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:10,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649483722] [2022-10-15 17:49:10,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649483722] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:10,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:10,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:49:10,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688258798] [2022-10-15 17:49:10,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:10,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:10,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:10,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:10,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:49:10,874 INFO L87 Difference]: Start difference. First operand 1078 states and 1744 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states 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 17:49:10,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:10,993 INFO L93 Difference]: Finished difference Result 1709 states and 2793 transitions. [2022-10-15 17:49:10,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:10,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2022-10-15 17:49:11,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:11,035 INFO L225 Difference]: With dead ends: 1709 [2022-10-15 17:49:11,035 INFO L226 Difference]: Without dead ends: 1709 [2022-10-15 17:49:11,036 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 17:49:11,043 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 399 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:11,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 1133 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:11,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2022-10-15 17:49:11,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1084. [2022-10-15 17:49:11,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1077 states have (on average 1.6174558960074281) internal successors, (1742), 1082 states have internal predecessors, (1742), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:11,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1747 transitions. [2022-10-15 17:49:11,099 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1747 transitions. Word has length 43 [2022-10-15 17:49:11,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:11,100 INFO L495 AbstractCegarLoop]: Abstraction has 1084 states and 1747 transitions. [2022-10-15 17:49:11,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states 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 17:49:11,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1747 transitions. [2022-10-15 17:49:11,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-15 17:49:11,103 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:11,104 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:11,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:49:11,105 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:11,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:11,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1836164875, now seen corresponding path program 1 times [2022-10-15 17:49:11,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:11,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566529473] [2022-10-15 17:49:11,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:11,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:11,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:11,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566529473] [2022-10-15 17:49:11,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566529473] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:11,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:11,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:49:11,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245574986] [2022-10-15 17:49:11,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:11,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:49:11,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:11,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:49:11,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:49:11,284 INFO L87 Difference]: Start difference. First operand 1084 states and 1747 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states 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 17:49:11,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:11,678 INFO L93 Difference]: Finished difference Result 1654 states and 2685 transitions. [2022-10-15 17:49:11,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:49:11,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2022-10-15 17:49:11,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:11,691 INFO L225 Difference]: With dead ends: 1654 [2022-10-15 17:49:11,691 INFO L226 Difference]: Without dead ends: 1654 [2022-10-15 17:49:11,692 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 17:49:11,693 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 523 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:11,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 1599 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:49:11,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2022-10-15 17:49:11,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1472. [2022-10-15 17:49:11,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1465 states have (on average 1.6225255972696246) internal successors, (2377), 1470 states have internal predecessors, (2377), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:11,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 2382 transitions. [2022-10-15 17:49:11,751 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 2382 transitions. Word has length 44 [2022-10-15 17:49:11,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:11,751 INFO L495 AbstractCegarLoop]: Abstraction has 1472 states and 2382 transitions. [2022-10-15 17:49:11,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states 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 17:49:11,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 2382 transitions. [2022-10-15 17:49:11,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-15 17:49:11,754 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:11,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:11,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:49:11,754 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:11,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:11,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1086799168, now seen corresponding path program 1 times [2022-10-15 17:49:11,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:11,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192910433] [2022-10-15 17:49:11,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:11,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:11,864 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 17:49:11,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:11,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192910433] [2022-10-15 17:49:11,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192910433] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:11,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:11,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:49:11,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192809345] [2022-10-15 17:49:11,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:11,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:49:11,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:11,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:49:11,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:49:11,867 INFO L87 Difference]: Start difference. First operand 1472 states and 2382 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:12,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:12,251 INFO L93 Difference]: Finished difference Result 2953 states and 4582 transitions. [2022-10-15 17:49:12,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:49:12,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-10-15 17:49:12,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:12,269 INFO L225 Difference]: With dead ends: 2953 [2022-10-15 17:49:12,270 INFO L226 Difference]: Without dead ends: 2953 [2022-10-15 17:49:12,270 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 17:49:12,272 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 674 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:12,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 1108 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:49:12,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2022-10-15 17:49:12,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2617. [2022-10-15 17:49:12,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2617 states, 2610 states have (on average 1.5950191570881227) internal successors, (4163), 2615 states have internal predecessors, (4163), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:12,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 4168 transitions. [2022-10-15 17:49:12,385 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 4168 transitions. Word has length 53 [2022-10-15 17:49:12,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:12,386 INFO L495 AbstractCegarLoop]: Abstraction has 2617 states and 4168 transitions. [2022-10-15 17:49:12,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:12,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 4168 transitions. [2022-10-15 17:49:12,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-15 17:49:12,389 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:12,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:12,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:49:12,390 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:12,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:12,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1057984969, now seen corresponding path program 1 times [2022-10-15 17:49:12,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:12,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82854137] [2022-10-15 17:49:12,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:12,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,499 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 17:49:12,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:12,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82854137] [2022-10-15 17:49:12,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82854137] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:12,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:12,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:49:12,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7908429] [2022-10-15 17:49:12,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:12,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:12,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:12,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:12,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:49:12,506 INFO L87 Difference]: Start difference. First operand 2617 states and 4168 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:12,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:12,554 INFO L93 Difference]: Finished difference Result 3018 states and 4827 transitions. [2022-10-15 17:49:12,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:12,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-10-15 17:49:12,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:12,574 INFO L225 Difference]: With dead ends: 3018 [2022-10-15 17:49:12,574 INFO L226 Difference]: Without dead ends: 3018 [2022-10-15 17:49:12,575 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 17:49:12,576 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 370 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:12,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 711 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:12,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3018 states. [2022-10-15 17:49:12,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3018 to 2676. [2022-10-15 17:49:12,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2676 states, 2669 states have (on average 1.6058448857249907) internal successors, (4286), 2674 states have internal predecessors, (4286), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:12,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2676 states to 2676 states and 4291 transitions. [2022-10-15 17:49:12,694 INFO L78 Accepts]: Start accepts. Automaton has 2676 states and 4291 transitions. Word has length 53 [2022-10-15 17:49:12,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:12,697 INFO L495 AbstractCegarLoop]: Abstraction has 2676 states and 4291 transitions. [2022-10-15 17:49:12,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:12,697 INFO L276 IsEmpty]: Start isEmpty. Operand 2676 states and 4291 transitions. [2022-10-15 17:49:12,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 17:49:12,699 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:12,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:12,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:49:12,704 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:12,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:12,709 INFO L85 PathProgramCache]: Analyzing trace with hash -225924825, now seen corresponding path program 1 times [2022-10-15 17:49:12,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:12,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150551316] [2022-10-15 17:49:12,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:12,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:12,854 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 17:49:12,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:12,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150551316] [2022-10-15 17:49:12,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150551316] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:12,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:12,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:49:12,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032352253] [2022-10-15 17:49:12,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:12,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:12,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:12,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:12,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:49:12,859 INFO L87 Difference]: Start difference. First operand 2676 states and 4291 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:13,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:13,109 INFO L93 Difference]: Finished difference Result 4200 states and 6317 transitions. [2022-10-15 17:49:13,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:13,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-10-15 17:49:13,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:13,135 INFO L225 Difference]: With dead ends: 4200 [2022-10-15 17:49:13,135 INFO L226 Difference]: Without dead ends: 4200 [2022-10-15 17:49:13,136 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 17:49:13,139 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 255 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:13,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 858 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:49:13,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4200 states. [2022-10-15 17:49:13,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4200 to 3452. [2022-10-15 17:49:13,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3445 states have (on average 1.525979680696662) internal successors, (5257), 3450 states have internal predecessors, (5257), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:13,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 5262 transitions. [2022-10-15 17:49:13,337 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 5262 transitions. Word has length 60 [2022-10-15 17:49:13,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:13,338 INFO L495 AbstractCegarLoop]: Abstraction has 3452 states and 5262 transitions. [2022-10-15 17:49:13,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:13,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 5262 transitions. [2022-10-15 17:49:13,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 17:49:13,343 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:13,343 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:13,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:49:13,343 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:13,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:13,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1366128929, now seen corresponding path program 1 times [2022-10-15 17:49:13,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:13,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534823324] [2022-10-15 17:49:13,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:13,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:13,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:13,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534823324] [2022-10-15 17:49:13,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534823324] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:13,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:13,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:49:13,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428811502] [2022-10-15 17:49:13,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:13,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:13,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:13,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:13,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:49:13,497 INFO L87 Difference]: Start difference. First operand 3452 states and 5262 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:13,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:13,587 INFO L93 Difference]: Finished difference Result 5987 states and 8946 transitions. [2022-10-15 17:49:13,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:13,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-10-15 17:49:13,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:13,626 INFO L225 Difference]: With dead ends: 5987 [2022-10-15 17:49:13,626 INFO L226 Difference]: Without dead ends: 5987 [2022-10-15 17:49:13,627 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 17:49:13,628 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 337 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:13,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 1100 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:13,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2022-10-15 17:49:13,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 5423. [2022-10-15 17:49:13,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5423 states, 5416 states have (on average 1.4859675036927622) internal successors, (8048), 5421 states have internal predecessors, (8048), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:13,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 8053 transitions. [2022-10-15 17:49:13,811 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 8053 transitions. Word has length 60 [2022-10-15 17:49:13,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:13,813 INFO L495 AbstractCegarLoop]: Abstraction has 5423 states and 8053 transitions. [2022-10-15 17:49:13,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:13,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 8053 transitions. [2022-10-15 17:49:13,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-15 17:49:13,816 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:13,816 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:13,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:49:13,817 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:13,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:13,818 INFO L85 PathProgramCache]: Analyzing trace with hash -105211679, now seen corresponding path program 1 times [2022-10-15 17:49:13,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:13,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511216351] [2022-10-15 17:49:13,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:13,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:13,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:49:13,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:13,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511216351] [2022-10-15 17:49:13,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511216351] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:13,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:13,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:49:13,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414391638] [2022-10-15 17:49:13,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:13,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:13,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:13,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:13,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:49:13,873 INFO L87 Difference]: Start difference. First operand 5423 states and 8053 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:13,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:13,924 INFO L93 Difference]: Finished difference Result 5406 states and 8031 transitions. [2022-10-15 17:49:13,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:13,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-10-15 17:49:13,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:13,957 INFO L225 Difference]: With dead ends: 5406 [2022-10-15 17:49:13,957 INFO L226 Difference]: Without dead ends: 5406 [2022-10-15 17:49:13,960 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 17:49:13,961 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 445 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:13,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 447 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:13,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5406 states. [2022-10-15 17:49:14,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5406 to 5406. [2022-10-15 17:49:14,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5399 states have (on average 1.4865715873309873) internal successors, (8026), 5404 states have internal predecessors, (8026), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:14,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 8031 transitions. [2022-10-15 17:49:14,184 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 8031 transitions. Word has length 60 [2022-10-15 17:49:14,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:14,184 INFO L495 AbstractCegarLoop]: Abstraction has 5406 states and 8031 transitions. [2022-10-15 17:49:14,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:14,186 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 8031 transitions. [2022-10-15 17:49:14,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-15 17:49:14,187 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:14,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:14,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:49:14,188 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:14,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:14,189 INFO L85 PathProgramCache]: Analyzing trace with hash -188990213, now seen corresponding path program 1 times [2022-10-15 17:49:14,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:14,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729899234] [2022-10-15 17:49:14,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:14,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:14,305 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 17:49:14,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:14,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729899234] [2022-10-15 17:49:14,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729899234] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:14,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:14,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:49:14,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640671674] [2022-10-15 17:49:14,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:14,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:14,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:14,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:14,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:49:14,308 INFO L87 Difference]: Start difference. First operand 5406 states and 8031 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:14,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:14,379 INFO L93 Difference]: Finished difference Result 5276 states and 7680 transitions. [2022-10-15 17:49:14,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:14,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-10-15 17:49:14,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:14,414 INFO L225 Difference]: With dead ends: 5276 [2022-10-15 17:49:14,414 INFO L226 Difference]: Without dead ends: 5276 [2022-10-15 17:49:14,415 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 17:49:14,416 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 346 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:14,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 444 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:14,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5276 states. [2022-10-15 17:49:14,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5276 to 5276. [2022-10-15 17:49:14,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5276 states, 5269 states have (on average 1.4566331372176884) internal successors, (7675), 5274 states have internal predecessors, (7675), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:14,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5276 states to 5276 states and 7680 transitions. [2022-10-15 17:49:14,561 INFO L78 Accepts]: Start accepts. Automaton has 5276 states and 7680 transitions. Word has length 62 [2022-10-15 17:49:14,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:14,561 INFO L495 AbstractCegarLoop]: Abstraction has 5276 states and 7680 transitions. [2022-10-15 17:49:14,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:14,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5276 states and 7680 transitions. [2022-10-15 17:49:14,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-15 17:49:14,565 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:14,565 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:14,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:49:14,566 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:14,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:14,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1680343582, now seen corresponding path program 1 times [2022-10-15 17:49:14,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:14,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650415089] [2022-10-15 17:49:14,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:14,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:14,746 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 17:49:14,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:14,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650415089] [2022-10-15 17:49:14,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650415089] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:14,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:14,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:49:14,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683924509] [2022-10-15 17:49:14,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:14,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:49:14,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:14,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:49:14,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:14,752 INFO L87 Difference]: Start difference. First operand 5276 states and 7680 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:15,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:15,663 INFO L93 Difference]: Finished difference Result 20422 states and 29198 transitions. [2022-10-15 17:49:15,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-15 17:49:15,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-10-15 17:49:15,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:15,730 INFO L225 Difference]: With dead ends: 20422 [2022-10-15 17:49:15,730 INFO L226 Difference]: Without dead ends: 20422 [2022-10-15 17:49:15,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:49:15,733 INFO L413 NwaCegarLoop]: 1058 mSDtfsCounter, 2110 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 3980 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:15,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2110 Valid, 3980 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 17:49:15,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20422 states. [2022-10-15 17:49:16,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20422 to 6630. [2022-10-15 17:49:16,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6630 states, 6623 states have (on average 1.4504001207911823) internal successors, (9606), 6628 states have internal predecessors, (9606), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:16,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6630 states to 6630 states and 9611 transitions. [2022-10-15 17:49:16,113 INFO L78 Accepts]: Start accepts. Automaton has 6630 states and 9611 transitions. Word has length 65 [2022-10-15 17:49:16,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:16,114 INFO L495 AbstractCegarLoop]: Abstraction has 6630 states and 9611 transitions. [2022-10-15 17:49:16,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:16,114 INFO L276 IsEmpty]: Start isEmpty. Operand 6630 states and 9611 transitions. [2022-10-15 17:49:16,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-15 17:49:16,117 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:16,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:16,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:49:16,118 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:16,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:16,118 INFO L85 PathProgramCache]: Analyzing trace with hash -807318526, now seen corresponding path program 1 times [2022-10-15 17:49:16,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:16,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929706928] [2022-10-15 17:49:16,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:16,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:16,255 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 17:49:16,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:16,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929706928] [2022-10-15 17:49:16,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929706928] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:16,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:16,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:49:16,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579343277] [2022-10-15 17:49:16,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:16,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:49:16,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:16,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:49:16,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:49:16,258 INFO L87 Difference]: Start difference. First operand 6630 states and 9611 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:17,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:17,338 INFO L93 Difference]: Finished difference Result 39349 states and 56262 transitions. [2022-10-15 17:49:17,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-15 17:49:17,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-10-15 17:49:17,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:17,473 INFO L225 Difference]: With dead ends: 39349 [2022-10-15 17:49:17,473 INFO L226 Difference]: Without dead ends: 39349 [2022-10-15 17:49:17,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=212, Invalid=658, Unknown=0, NotChecked=0, Total=870 [2022-10-15 17:49:17,475 INFO L413 NwaCegarLoop]: 1863 mSDtfsCounter, 3880 mSDsluCounter, 6771 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3880 SdHoareTripleChecker+Valid, 8634 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:17,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3880 Valid, 8634 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 17:49:17,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39349 states. [2022-10-15 17:49:18,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39349 to 7056. [2022-10-15 17:49:18,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7056 states, 7049 states have (on average 1.4431834302737978) internal successors, (10173), 7054 states have internal predecessors, (10173), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:18,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7056 states to 7056 states and 10178 transitions. [2022-10-15 17:49:18,098 INFO L78 Accepts]: Start accepts. Automaton has 7056 states and 10178 transitions. Word has length 66 [2022-10-15 17:49:18,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:18,098 INFO L495 AbstractCegarLoop]: Abstraction has 7056 states and 10178 transitions. [2022-10-15 17:49:18,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:18,099 INFO L276 IsEmpty]: Start isEmpty. Operand 7056 states and 10178 transitions. [2022-10-15 17:49:18,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-15 17:49:18,101 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:18,101 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:18,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:49:18,102 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:18,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:18,102 INFO L85 PathProgramCache]: Analyzing trace with hash -915827396, now seen corresponding path program 1 times [2022-10-15 17:49:18,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:18,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998766027] [2022-10-15 17:49:18,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:18,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:18,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:18,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998766027] [2022-10-15 17:49:18,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998766027] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:18,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:18,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:49:18,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378848327] [2022-10-15 17:49:18,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:18,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:49:18,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:18,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:49:18,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:49:18,196 INFO L87 Difference]: Start difference. First operand 7056 states and 10178 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:18,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:18,482 INFO L93 Difference]: Finished difference Result 7243 states and 10356 transitions. [2022-10-15 17:49:18,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:49:18,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-10-15 17:49:18,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:18,505 INFO L225 Difference]: With dead ends: 7243 [2022-10-15 17:49:18,505 INFO L226 Difference]: Without dead ends: 7243 [2022-10-15 17:49:18,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:49:18,507 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 567 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:18,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1200 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:49:18,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7243 states. [2022-10-15 17:49:18,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7243 to 7056. [2022-10-15 17:49:18,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7056 states, 7049 states have (on average 1.4380763228826785) internal successors, (10137), 7054 states have internal predecessors, (10137), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:18,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7056 states to 7056 states and 10142 transitions. [2022-10-15 17:49:18,808 INFO L78 Accepts]: Start accepts. Automaton has 7056 states and 10142 transitions. Word has length 67 [2022-10-15 17:49:18,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:18,809 INFO L495 AbstractCegarLoop]: Abstraction has 7056 states and 10142 transitions. [2022-10-15 17:49:18,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:18,809 INFO L276 IsEmpty]: Start isEmpty. Operand 7056 states and 10142 transitions. [2022-10-15 17:49:18,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-15 17:49:18,812 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:18,812 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:18,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:49:18,813 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:18,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:18,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1671505521, now seen corresponding path program 1 times [2022-10-15 17:49:18,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:18,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053481392] [2022-10-15 17:49:18,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:18,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:18,884 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:18,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:18,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053481392] [2022-10-15 17:49:18,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053481392] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:18,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:18,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:49:18,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576651336] [2022-10-15 17:49:18,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:18,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:18,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:18,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:18,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:49:18,888 INFO L87 Difference]: Start difference. First operand 7056 states and 10142 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states 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 17:49:19,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:19,018 INFO L93 Difference]: Finished difference Result 7105 states and 9864 transitions. [2022-10-15 17:49:19,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:19,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-10-15 17:49:19,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:19,043 INFO L225 Difference]: With dead ends: 7105 [2022-10-15 17:49:19,044 INFO L226 Difference]: Without dead ends: 7105 [2022-10-15 17:49:19,044 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 17:49:19,045 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 352 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:19,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 852 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:19,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7105 states. [2022-10-15 17:49:19,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7105 to 7041. [2022-10-15 17:49:19,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7041 states, 7034 states have (on average 1.3928063690645436) internal successors, (9797), 7039 states have internal predecessors, (9797), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:19,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7041 states to 7041 states and 9802 transitions. [2022-10-15 17:49:19,211 INFO L78 Accepts]: Start accepts. Automaton has 7041 states and 9802 transitions. Word has length 72 [2022-10-15 17:49:19,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:19,212 INFO L495 AbstractCegarLoop]: Abstraction has 7041 states and 9802 transitions. [2022-10-15 17:49:19,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states 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 17:49:19,212 INFO L276 IsEmpty]: Start isEmpty. Operand 7041 states and 9802 transitions. [2022-10-15 17:49:19,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 17:49:19,214 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:19,214 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:19,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:49:19,215 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:19,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:19,216 INFO L85 PathProgramCache]: Analyzing trace with hash -292601900, now seen corresponding path program 1 times [2022-10-15 17:49:19,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:19,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198256271] [2022-10-15 17:49:19,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:19,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:19,274 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 17:49:19,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:19,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198256271] [2022-10-15 17:49:19,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198256271] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:19,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:19,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:49:19,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047961051] [2022-10-15 17:49:19,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:19,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:19,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:19,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:19,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:49:19,278 INFO L87 Difference]: Start difference. First operand 7041 states and 9802 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:19,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:19,357 INFO L93 Difference]: Finished difference Result 7909 states and 10883 transitions. [2022-10-15 17:49:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:19,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-10-15 17:49:19,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:19,387 INFO L225 Difference]: With dead ends: 7909 [2022-10-15 17:49:19,387 INFO L226 Difference]: Without dead ends: 7837 [2022-10-15 17:49:19,388 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 17:49:19,389 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 335 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:19,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 871 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:19,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7837 states. [2022-10-15 17:49:19,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7837 to 7296. [2022-10-15 17:49:19,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7296 states, 7289 states have (on average 1.392234874468377) internal successors, (10148), 7294 states have internal predecessors, (10148), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:19,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7296 states to 7296 states and 10153 transitions. [2022-10-15 17:49:19,602 INFO L78 Accepts]: Start accepts. Automaton has 7296 states and 10153 transitions. Word has length 74 [2022-10-15 17:49:19,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:19,602 INFO L495 AbstractCegarLoop]: Abstraction has 7296 states and 10153 transitions. [2022-10-15 17:49:19,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:19,603 INFO L276 IsEmpty]: Start isEmpty. Operand 7296 states and 10153 transitions. [2022-10-15 17:49:19,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 17:49:19,604 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:19,605 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:19,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:49:19,605 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:19,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:19,606 INFO L85 PathProgramCache]: Analyzing trace with hash 120496650, now seen corresponding path program 1 times [2022-10-15 17:49:19,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:19,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207878429] [2022-10-15 17:49:19,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:19,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:19,663 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:19,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:19,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207878429] [2022-10-15 17:49:19,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207878429] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:19,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:19,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:49:19,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553081585] [2022-10-15 17:49:19,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:19,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:19,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:19,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:19,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:49:19,666 INFO L87 Difference]: Start difference. First operand 7296 states and 10153 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:19,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:19,714 INFO L93 Difference]: Finished difference Result 3670 states and 4948 transitions. [2022-10-15 17:49:19,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:19,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-10-15 17:49:19,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:19,725 INFO L225 Difference]: With dead ends: 3670 [2022-10-15 17:49:19,725 INFO L226 Difference]: Without dead ends: 3670 [2022-10-15 17:49:19,726 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 17:49:19,727 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 69 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:19,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 730 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:19,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3670 states. [2022-10-15 17:49:19,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3670 to 3655. [2022-10-15 17:49:19,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3655 states, 3648 states have (on average 1.3508771929824561) internal successors, (4928), 3653 states have internal predecessors, (4928), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:19,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3655 states to 3655 states and 4933 transitions. [2022-10-15 17:49:19,793 INFO L78 Accepts]: Start accepts. Automaton has 3655 states and 4933 transitions. Word has length 79 [2022-10-15 17:49:19,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:19,793 INFO L495 AbstractCegarLoop]: Abstraction has 3655 states and 4933 transitions. [2022-10-15 17:49:19,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:19,793 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 4933 transitions. [2022-10-15 17:49:19,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-15 17:49:19,795 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:19,796 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:19,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 17:49:19,796 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:19,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:19,797 INFO L85 PathProgramCache]: Analyzing trace with hash -997935398, now seen corresponding path program 1 times [2022-10-15 17:49:19,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:19,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513646301] [2022-10-15 17:49:19,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:19,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:19,908 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:19,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:19,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513646301] [2022-10-15 17:49:19,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513646301] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:19,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:19,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:49:19,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597017710] [2022-10-15 17:49:19,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:19,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:19,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:19,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:19,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:49:19,912 INFO L87 Difference]: Start difference. First operand 3655 states and 4933 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 17:49:20,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:20,139 INFO L93 Difference]: Finished difference Result 11674 states and 15752 transitions. [2022-10-15 17:49:20,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 17:49:20,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-10-15 17:49:20,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:20,174 INFO L225 Difference]: With dead ends: 11674 [2022-10-15 17:49:20,174 INFO L226 Difference]: Without dead ends: 11674 [2022-10-15 17:49:20,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:20,176 INFO L413 NwaCegarLoop]: 1052 mSDtfsCounter, 1592 mSDsluCounter, 2313 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1592 SdHoareTripleChecker+Valid, 3365 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:20,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1592 Valid, 3365 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:20,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11674 states. [2022-10-15 17:49:20,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11674 to 3659. [2022-10-15 17:49:20,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3659 states, 3652 states have (on average 1.3477546549835706) internal successors, (4922), 3657 states have internal predecessors, (4922), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:20,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3659 states to 3659 states and 4927 transitions. [2022-10-15 17:49:20,383 INFO L78 Accepts]: Start accepts. Automaton has 3659 states and 4927 transitions. Word has length 97 [2022-10-15 17:49:20,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:20,384 INFO L495 AbstractCegarLoop]: Abstraction has 3659 states and 4927 transitions. [2022-10-15 17:49:20,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 0 states 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 17:49:20,384 INFO L276 IsEmpty]: Start isEmpty. Operand 3659 states and 4927 transitions. [2022-10-15 17:49:20,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-15 17:49:20,387 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:20,387 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:20,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 17:49:20,388 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:20,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:20,388 INFO L85 PathProgramCache]: Analyzing trace with hash -842527211, now seen corresponding path program 1 times [2022-10-15 17:49:20,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:20,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380443511] [2022-10-15 17:49:20,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:20,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:20,457 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:20,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:20,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380443511] [2022-10-15 17:49:20,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380443511] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:20,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:20,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:49:20,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824143529] [2022-10-15 17:49:20,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:20,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:20,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:20,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:20,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:49:20,460 INFO L87 Difference]: Start difference. First operand 3659 states and 4927 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:20,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:20,498 INFO L93 Difference]: Finished difference Result 3631 states and 4884 transitions. [2022-10-15 17:49:20,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:20,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-10-15 17:49:20,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:20,510 INFO L225 Difference]: With dead ends: 3631 [2022-10-15 17:49:20,510 INFO L226 Difference]: Without dead ends: 3631 [2022-10-15 17:49:20,511 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 17:49:20,512 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 24 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:20,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 723 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:20,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3631 states. [2022-10-15 17:49:20,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3631 to 3466. [2022-10-15 17:49:20,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3466 states, 3459 states have (on average 1.357328707718994) internal successors, (4695), 3464 states have internal predecessors, (4695), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:20,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3466 states to 3466 states and 4700 transitions. [2022-10-15 17:49:20,585 INFO L78 Accepts]: Start accepts. Automaton has 3466 states and 4700 transitions. Word has length 99 [2022-10-15 17:49:20,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:20,586 INFO L495 AbstractCegarLoop]: Abstraction has 3466 states and 4700 transitions. [2022-10-15 17:49:20,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:20,586 INFO L276 IsEmpty]: Start isEmpty. Operand 3466 states and 4700 transitions. [2022-10-15 17:49:20,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-15 17:49:20,588 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:20,589 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:20,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-15 17:49:20,589 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:20,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:20,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1438592317, now seen corresponding path program 1 times [2022-10-15 17:49:20,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:20,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047584671] [2022-10-15 17:49:20,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:20,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:20,722 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:20,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:20,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047584671] [2022-10-15 17:49:20,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047584671] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:20,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626755174] [2022-10-15 17:49:20,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:20,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:20,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:20,727 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:20,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 17:49:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:20,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 17:49:20,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:21,033 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:21,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:21,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626755174] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:21,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:21,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-15 17:49:21,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245168295] [2022-10-15 17:49:21,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:21,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:21,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:21,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:21,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:21,036 INFO L87 Difference]: Start difference. First operand 3466 states and 4700 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:21,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:21,079 INFO L93 Difference]: Finished difference Result 4098 states and 5483 transitions. [2022-10-15 17:49:21,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:21,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2022-10-15 17:49:21,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:21,091 INFO L225 Difference]: With dead ends: 4098 [2022-10-15 17:49:21,091 INFO L226 Difference]: Without dead ends: 4098 [2022-10-15 17:49:21,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:21,093 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 231 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:21,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 778 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:21,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2022-10-15 17:49:21,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3978. [2022-10-15 17:49:21,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3978 states, 3971 states have (on average 1.3467640392848148) internal successors, (5348), 3976 states have internal predecessors, (5348), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:21,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3978 states to 3978 states and 5353 transitions. [2022-10-15 17:49:21,168 INFO L78 Accepts]: Start accepts. Automaton has 3978 states and 5353 transitions. Word has length 103 [2022-10-15 17:49:21,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:21,169 INFO L495 AbstractCegarLoop]: Abstraction has 3978 states and 5353 transitions. [2022-10-15 17:49:21,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:21,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3978 states and 5353 transitions. [2022-10-15 17:49:21,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-10-15 17:49:21,171 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:21,172 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:21,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:21,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-10-15 17:49:21,386 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:21,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:21,387 INFO L85 PathProgramCache]: Analyzing trace with hash 205763861, now seen corresponding path program 1 times [2022-10-15 17:49:21,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:21,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676633811] [2022-10-15 17:49:21,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:21,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:21,518 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:21,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:21,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676633811] [2022-10-15 17:49:21,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676633811] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:21,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:21,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:49:21,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761817441] [2022-10-15 17:49:21,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:21,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:49:21,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:21,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:49:21,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:49:21,522 INFO L87 Difference]: Start difference. First operand 3978 states and 5353 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states 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 17:49:21,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:21,756 INFO L93 Difference]: Finished difference Result 3773 states and 5036 transitions. [2022-10-15 17:49:21,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:49:21,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2022-10-15 17:49:21,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:21,766 INFO L225 Difference]: With dead ends: 3773 [2022-10-15 17:49:21,766 INFO L226 Difference]: Without dead ends: 3773 [2022-10-15 17:49:21,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:49:21,769 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 266 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:21,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 1216 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:49:21,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3773 states. [2022-10-15 17:49:21,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3773 to 3699. [2022-10-15 17:49:21,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3699 states, 3692 states have (on average 1.3410075839653304) internal successors, (4951), 3697 states have internal predecessors, (4951), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:21,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3699 states to 3699 states and 4956 transitions. [2022-10-15 17:49:21,844 INFO L78 Accepts]: Start accepts. Automaton has 3699 states and 4956 transitions. Word has length 110 [2022-10-15 17:49:21,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:21,844 INFO L495 AbstractCegarLoop]: Abstraction has 3699 states and 4956 transitions. [2022-10-15 17:49:21,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states 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 17:49:21,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3699 states and 4956 transitions. [2022-10-15 17:49:21,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-10-15 17:49:21,848 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:21,848 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:21,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-15 17:49:21,849 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:21,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:21,850 INFO L85 PathProgramCache]: Analyzing trace with hash 778344618, now seen corresponding path program 1 times [2022-10-15 17:49:21,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:21,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901150960] [2022-10-15 17:49:21,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:21,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:22,055 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:49:22,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:22,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901150960] [2022-10-15 17:49:22,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901150960] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:22,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060659730] [2022-10-15 17:49:22,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:22,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:22,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:22,059 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:22,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 17:49:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:22,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 17:49:22,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:22,376 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:22,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:22,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060659730] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:22,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:22,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-15 17:49:22,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308402471] [2022-10-15 17:49:22,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:22,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:22,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:22,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:22,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:22,379 INFO L87 Difference]: Start difference. First operand 3699 states and 4956 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:22,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:22,412 INFO L93 Difference]: Finished difference Result 2348 states and 3079 transitions. [2022-10-15 17:49:22,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:22,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2022-10-15 17:49:22,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:22,419 INFO L225 Difference]: With dead ends: 2348 [2022-10-15 17:49:22,419 INFO L226 Difference]: Without dead ends: 2348 [2022-10-15 17:49:22,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:22,424 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 266 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:22,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 420 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:22,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2348 states. [2022-10-15 17:49:22,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2348 to 2348. [2022-10-15 17:49:22,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2348 states, 2341 states have (on average 1.3131140538231525) internal successors, (3074), 2346 states have internal predecessors, (3074), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:22,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 3079 transitions. [2022-10-15 17:49:22,469 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 3079 transitions. Word has length 158 [2022-10-15 17:49:22,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:22,470 INFO L495 AbstractCegarLoop]: Abstraction has 2348 states and 3079 transitions. [2022-10-15 17:49:22,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:22,470 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 3079 transitions. [2022-10-15 17:49:22,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-10-15 17:49:22,473 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:22,474 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:22,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:22,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-15 17:49:22,687 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:22,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:22,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1723152058, now seen corresponding path program 1 times [2022-10-15 17:49:22,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:22,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051966957] [2022-10-15 17:49:22,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:22,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:23,011 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:23,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:23,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051966957] [2022-10-15 17:49:23,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051966957] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:23,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328655011] [2022-10-15 17:49:23,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:23,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:23,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:23,013 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:23,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 17:49:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:23,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 17:49:23,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:23,274 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-15 17:49:23,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:23,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328655011] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:23,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:23,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-15 17:49:23,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617630502] [2022-10-15 17:49:23,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:23,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:23,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:23,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:23,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:23,277 INFO L87 Difference]: Start difference. First operand 2348 states and 3079 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:23,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:23,324 INFO L93 Difference]: Finished difference Result 2348 states and 3009 transitions. [2022-10-15 17:49:23,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:23,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2022-10-15 17:49:23,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:23,331 INFO L225 Difference]: With dead ends: 2348 [2022-10-15 17:49:23,331 INFO L226 Difference]: Without dead ends: 2348 [2022-10-15 17:49:23,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:23,332 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 273 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:23,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 393 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:23,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2348 states. [2022-10-15 17:49:23,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2348 to 2348. [2022-10-15 17:49:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2348 states, 2341 states have (on average 1.283212302434857) internal successors, (3004), 2346 states have internal predecessors, (3004), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:23,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 3009 transitions. [2022-10-15 17:49:23,379 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 3009 transitions. Word has length 161 [2022-10-15 17:49:23,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:23,379 INFO L495 AbstractCegarLoop]: Abstraction has 2348 states and 3009 transitions. [2022-10-15 17:49:23,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:23,380 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 3009 transitions. [2022-10-15 17:49:23,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-10-15 17:49:23,383 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:23,383 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:49:23,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:23,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:23,596 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:23,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:23,598 INFO L85 PathProgramCache]: Analyzing trace with hash 901617921, now seen corresponding path program 1 times [2022-10-15 17:49:23,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:23,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241903522] [2022-10-15 17:49:23,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:23,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:23,859 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:23,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:23,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241903522] [2022-10-15 17:49:23,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241903522] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:23,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079563770] [2022-10-15 17:49:23,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:23,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:23,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:23,862 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:23,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 17:49:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:24,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 17:49:24,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:24,063 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-15 17:49:24,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:24,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079563770] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:24,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:24,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-15 17:49:24,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383226723] [2022-10-15 17:49:24,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:24,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:24,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:24,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:24,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:24,068 INFO L87 Difference]: Start difference. First operand 2348 states and 3009 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:24,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:24,337 INFO L93 Difference]: Finished difference Result 2784 states and 3450 transitions. [2022-10-15 17:49:24,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:24,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2022-10-15 17:49:24,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:24,349 INFO L225 Difference]: With dead ends: 2784 [2022-10-15 17:49:24,349 INFO L226 Difference]: Without dead ends: 2784 [2022-10-15 17:49:24,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:49:24,351 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 205 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:24,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 645 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:49:24,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2022-10-15 17:49:24,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2727. [2022-10-15 17:49:24,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2727 states, 2720 states have (on average 1.245220588235294) internal successors, (3387), 2725 states have internal predecessors, (3387), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:24,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2727 states to 2727 states and 3392 transitions. [2022-10-15 17:49:24,401 INFO L78 Accepts]: Start accepts. Automaton has 2727 states and 3392 transitions. Word has length 162 [2022-10-15 17:49:24,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:24,402 INFO L495 AbstractCegarLoop]: Abstraction has 2727 states and 3392 transitions. [2022-10-15 17:49:24,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:24,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2727 states and 3392 transitions. [2022-10-15 17:49:24,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-10-15 17:49:24,405 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:24,405 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:24,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:24,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:24,621 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:24,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:24,622 INFO L85 PathProgramCache]: Analyzing trace with hash -89319668, now seen corresponding path program 1 times [2022-10-15 17:49:24,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:24,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038609041] [2022-10-15 17:49:24,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:24,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:25,263 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 44 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:25,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:25,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038609041] [2022-10-15 17:49:25,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038609041] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:25,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335020212] [2022-10-15 17:49:25,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:25,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:25,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:25,266 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:25,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 17:49:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:25,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-15 17:49:25,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:25,877 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 44 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:25,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:49:26,236 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 44 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 17:49:26,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335020212] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:49:26,237 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:49:26,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2022-10-15 17:49:26,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65651148] [2022-10-15 17:49:26,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:49:26,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-15 17:49:26,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:26,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-15 17:49:26,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:26,241 INFO L87 Difference]: Start difference. First operand 2727 states and 3392 transitions. Second operand has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:27,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:27,169 INFO L93 Difference]: Finished difference Result 10961 states and 13658 transitions. [2022-10-15 17:49:27,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-15 17:49:27,170 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2022-10-15 17:49:27,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:27,200 INFO L225 Difference]: With dead ends: 10961 [2022-10-15 17:49:27,200 INFO L226 Difference]: Without dead ends: 10961 [2022-10-15 17:49:27,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 337 SyntacticMatches, 6 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=221, Invalid=969, Unknown=0, NotChecked=0, Total=1190 [2022-10-15 17:49:27,202 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 4030 mSDsluCounter, 4533 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4030 SdHoareTripleChecker+Valid, 5355 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:27,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4030 Valid, 5355 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 17:49:27,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10961 states. [2022-10-15 17:49:27,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10961 to 3883. [2022-10-15 17:49:27,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3883 states, 3876 states have (on average 1.249484004127967) internal successors, (4843), 3881 states have internal predecessors, (4843), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:27,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3883 states to 3883 states and 4848 transitions. [2022-10-15 17:49:27,344 INFO L78 Accepts]: Start accepts. Automaton has 3883 states and 4848 transitions. Word has length 164 [2022-10-15 17:49:27,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:27,345 INFO L495 AbstractCegarLoop]: Abstraction has 3883 states and 4848 transitions. [2022-10-15 17:49:27,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:27,345 INFO L276 IsEmpty]: Start isEmpty. Operand 3883 states and 4848 transitions. [2022-10-15 17:49:27,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-10-15 17:49:27,349 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:27,350 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:27,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:27,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-15 17:49:27,565 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:27,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:27,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1160504454, now seen corresponding path program 1 times [2022-10-15 17:49:27,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:27,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739198071] [2022-10-15 17:49:27,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:27,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:28,476 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 10 proven. 196 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 17:49:28,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:28,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739198071] [2022-10-15 17:49:28,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739198071] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:28,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163212513] [2022-10-15 17:49:28,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:28,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:28,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:28,482 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:28,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 17:49:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:28,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-15 17:49:28,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:29,406 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 10 proven. 196 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 17:49:29,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:49:30,144 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 10 proven. 196 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 17:49:30,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163212513] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:49:30,145 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:49:30,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2022-10-15 17:49:30,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790651223] [2022-10-15 17:49:30,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:49:30,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-15 17:49:30,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:30,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-15 17:49:30,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:49:30,148 INFO L87 Difference]: Start difference. First operand 3883 states and 4848 transitions. Second operand has 11 states, 11 states have (on average 23.454545454545453) internal successors, (258), 11 states have internal predecessors, (258), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:31,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:31,494 INFO L93 Difference]: Finished difference Result 13512 states and 16813 transitions. [2022-10-15 17:49:31,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-15 17:49:31,495 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.454545454545453) internal successors, (258), 11 states have internal predecessors, (258), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 264 [2022-10-15 17:49:31,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:31,537 INFO L225 Difference]: With dead ends: 13512 [2022-10-15 17:49:31,537 INFO L226 Difference]: Without dead ends: 13512 [2022-10-15 17:49:31,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 541 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=269, Invalid=1711, Unknown=0, NotChecked=0, Total=1980 [2022-10-15 17:49:31,540 INFO L413 NwaCegarLoop]: 1393 mSDtfsCounter, 5693 mSDsluCounter, 9703 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5693 SdHoareTripleChecker+Valid, 11096 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:31,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5693 Valid, 11096 Invalid, 965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [176 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 17:49:31,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13512 states. [2022-10-15 17:49:31,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13512 to 4889. [2022-10-15 17:49:31,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4889 states, 4882 states have (on average 1.251741089717329) internal successors, (6111), 4887 states have internal predecessors, (6111), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:31,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4889 states to 4889 states and 6116 transitions. [2022-10-15 17:49:31,698 INFO L78 Accepts]: Start accepts. Automaton has 4889 states and 6116 transitions. Word has length 264 [2022-10-15 17:49:31,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:31,699 INFO L495 AbstractCegarLoop]: Abstraction has 4889 states and 6116 transitions. [2022-10-15 17:49:31,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.454545454545453) internal successors, (258), 11 states have internal predecessors, (258), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:31,700 INFO L276 IsEmpty]: Start isEmpty. Operand 4889 states and 6116 transitions. [2022-10-15 17:49:31,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-10-15 17:49:31,708 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:31,708 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:31,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:31,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-15 17:49:31,923 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:31,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:31,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1649884688, now seen corresponding path program 1 times [2022-10-15 17:49:31,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:31,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092010087] [2022-10-15 17:49:31,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:31,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:32,812 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 268 proven. 204 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-15 17:49:32,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:32,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092010087] [2022-10-15 17:49:32,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092010087] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:32,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244202964] [2022-10-15 17:49:32,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:32,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:32,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:32,818 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:32,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 17:49:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:33,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 1071 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-15 17:49:33,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:33,534 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 472 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-15 17:49:33,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 17:49:33,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244202964] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:33,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 17:49:33,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 11 [2022-10-15 17:49:33,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494150904] [2022-10-15 17:49:33,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:33,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-15 17:49:33,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:33,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-15 17:49:33,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:49:33,538 INFO L87 Difference]: Start difference. First operand 4889 states and 6116 transitions. Second operand has 9 states, 9 states have (on average 39.666666666666664) internal successors, (357), 9 states have internal predecessors, (357), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:33,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:33,917 INFO L93 Difference]: Finished difference Result 6081 states and 7576 transitions. [2022-10-15 17:49:33,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 17:49:33,917 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 39.666666666666664) internal successors, (357), 9 states have internal predecessors, (357), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 365 [2022-10-15 17:49:33,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:33,932 INFO L225 Difference]: With dead ends: 6081 [2022-10-15 17:49:33,932 INFO L226 Difference]: Without dead ends: 6081 [2022-10-15 17:49:33,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-10-15 17:49:33,933 INFO L413 NwaCegarLoop]: 1247 mSDtfsCounter, 2034 mSDsluCounter, 3305 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2034 SdHoareTripleChecker+Valid, 4552 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:33,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2034 Valid, 4552 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:49:33,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6081 states. [2022-10-15 17:49:34,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6081 to 4795. [2022-10-15 17:49:34,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4795 states, 4788 states have (on average 1.2508354218880535) internal successors, (5989), 4793 states have internal predecessors, (5989), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:34,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4795 states to 4795 states and 5994 transitions. [2022-10-15 17:49:34,023 INFO L78 Accepts]: Start accepts. Automaton has 4795 states and 5994 transitions. Word has length 365 [2022-10-15 17:49:34,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:34,024 INFO L495 AbstractCegarLoop]: Abstraction has 4795 states and 5994 transitions. [2022-10-15 17:49:34,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 39.666666666666664) internal successors, (357), 9 states have internal predecessors, (357), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:34,025 INFO L276 IsEmpty]: Start isEmpty. Operand 4795 states and 5994 transitions. [2022-10-15 17:49:34,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-10-15 17:49:34,032 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:34,033 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:34,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:34,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:34,247 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:34,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:34,248 INFO L85 PathProgramCache]: Analyzing trace with hash 212538723, now seen corresponding path program 1 times [2022-10-15 17:49:34,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:34,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121291388] [2022-10-15 17:49:34,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:34,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:34,430 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2022-10-15 17:49:34,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:34,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121291388] [2022-10-15 17:49:34,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121291388] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:34,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:34,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:49:34,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042182188] [2022-10-15 17:49:34,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:34,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:49:34,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:34,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:49:34,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:49:34,434 INFO L87 Difference]: Start difference. First operand 4795 states and 5994 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:34,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:34,517 INFO L93 Difference]: Finished difference Result 1178 states and 1305 transitions. [2022-10-15 17:49:34,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:49:34,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 366 [2022-10-15 17:49:34,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:34,520 INFO L225 Difference]: With dead ends: 1178 [2022-10-15 17:49:34,521 INFO L226 Difference]: Without dead ends: 1178 [2022-10-15 17:49:34,522 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 17:49:34,527 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 136 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:34,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 366 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:34,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2022-10-15 17:49:34,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1047. [2022-10-15 17:49:34,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1042 states have (on average 1.100767754318618) internal successors, (1147), 1045 states have internal predecessors, (1147), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:34,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1150 transitions. [2022-10-15 17:49:34,547 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1150 transitions. Word has length 366 [2022-10-15 17:49:34,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:34,548 INFO L495 AbstractCegarLoop]: Abstraction has 1047 states and 1150 transitions. [2022-10-15 17:49:34,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:34,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1150 transitions. [2022-10-15 17:49:34,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-10-15 17:49:34,557 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:34,559 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:34,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-10-15 17:49:34,560 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:34,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:34,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1278053087, now seen corresponding path program 1 times [2022-10-15 17:49:34,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:34,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609165432] [2022-10-15 17:49:34,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:34,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:34,940 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2022-10-15 17:49:34,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:34,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609165432] [2022-10-15 17:49:34,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609165432] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:34,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:34,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:49:34,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419116328] [2022-10-15 17:49:34,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:34,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 17:49:34,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:34,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 17:49:34,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:49:34,944 INFO L87 Difference]: Start difference. First operand 1047 states and 1150 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:35,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:35,132 INFO L93 Difference]: Finished difference Result 1971 states and 2177 transitions. [2022-10-15 17:49:35,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 17:49:35,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 367 [2022-10-15 17:49:35,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:35,137 INFO L225 Difference]: With dead ends: 1971 [2022-10-15 17:49:35,137 INFO L226 Difference]: Without dead ends: 1971 [2022-10-15 17:49:35,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:49:35,138 INFO L413 NwaCegarLoop]: 472 mSDtfsCounter, 923 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 2393 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:35,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 2393 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:49:35,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2022-10-15 17:49:35,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1045. [2022-10-15 17:49:35,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 1040 states have (on average 1.0980769230769232) internal successors, (1142), 1043 states have internal predecessors, (1142), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:35,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1145 transitions. [2022-10-15 17:49:35,184 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1145 transitions. Word has length 367 [2022-10-15 17:49:35,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:35,185 INFO L495 AbstractCegarLoop]: Abstraction has 1045 states and 1145 transitions. [2022-10-15 17:49:35,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 7 states have internal predecessors, (173), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:35,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1145 transitions. [2022-10-15 17:49:35,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-10-15 17:49:35,192 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:35,192 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:35,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-10-15 17:49:35,196 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:35,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:35,197 INFO L85 PathProgramCache]: Analyzing trace with hash -393421983, now seen corresponding path program 1 times [2022-10-15 17:49:35,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:35,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319377665] [2022-10-15 17:49:35,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:35,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:35,443 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2022-10-15 17:49:35,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:35,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319377665] [2022-10-15 17:49:35,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319377665] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:49:35,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:49:35,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:49:35,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541105981] [2022-10-15 17:49:35,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:49:35,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:49:35,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:35,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:49:35,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:49:35,447 INFO L87 Difference]: Start difference. First operand 1045 states and 1145 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:35,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:35,520 INFO L93 Difference]: Finished difference Result 1676 states and 1853 transitions. [2022-10-15 17:49:35,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 17:49:35,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 368 [2022-10-15 17:49:35,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:35,525 INFO L225 Difference]: With dead ends: 1676 [2022-10-15 17:49:35,525 INFO L226 Difference]: Without dead ends: 1676 [2022-10-15 17:49:35,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:49:35,526 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 481 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:35,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 920 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:49:35,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2022-10-15 17:49:35,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1029. [2022-10-15 17:49:35,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 1025 states have (on average 1.0848780487804879) internal successors, (1112), 1027 states have internal predecessors, (1112), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:35,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1114 transitions. [2022-10-15 17:49:35,548 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1114 transitions. Word has length 368 [2022-10-15 17:49:35,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:35,549 INFO L495 AbstractCegarLoop]: Abstraction has 1029 states and 1114 transitions. [2022-10-15 17:49:35,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:35,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1114 transitions. [2022-10-15 17:49:35,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-10-15 17:49:35,553 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:35,554 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:35,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-10-15 17:49:35,555 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:35,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:35,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1783235081, now seen corresponding path program 1 times [2022-10-15 17:49:35,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:35,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688010792] [2022-10-15 17:49:35,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:35,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:38,593 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 66 proven. 229 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-10-15 17:49:38,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:38,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688010792] [2022-10-15 17:49:38,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688010792] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:38,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464328276] [2022-10-15 17:49:38,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:38,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:38,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:38,599 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:38,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 17:49:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:38,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 1209 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-15 17:49:38,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:39,941 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 68 proven. 193 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-10-15 17:49:39,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:49:41,171 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 20 proven. 241 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-10-15 17:49:41,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464328276] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:49:41,171 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:49:41,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 17] total 30 [2022-10-15 17:49:41,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811487287] [2022-10-15 17:49:41,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:49:41,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-15 17:49:41,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:41,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-15 17:49:41,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2022-10-15 17:49:41,178 INFO L87 Difference]: Start difference. First operand 1029 states and 1114 transitions. Second operand has 30 states, 30 states have (on average 13.833333333333334) internal successors, (415), 30 states have internal predecessors, (415), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:42,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:42,549 INFO L93 Difference]: Finished difference Result 1466 states and 1605 transitions. [2022-10-15 17:49:42,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-10-15 17:49:42,550 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 13.833333333333334) internal successors, (415), 30 states have internal predecessors, (415), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 426 [2022-10-15 17:49:42,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:42,558 INFO L225 Difference]: With dead ends: 1466 [2022-10-15 17:49:42,558 INFO L226 Difference]: Without dead ends: 1466 [2022-10-15 17:49:42,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 914 GetRequests, 852 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 778 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=500, Invalid=2922, Unknown=0, NotChecked=0, Total=3422 [2022-10-15 17:49:42,563 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 3068 mSDsluCounter, 6808 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3068 SdHoareTripleChecker+Valid, 7202 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:42,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3068 Valid, 7202 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 17:49:42,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2022-10-15 17:49:42,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 1029. [2022-10-15 17:49:42,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 1025 states have (on average 1.0839024390243903) internal successors, (1111), 1027 states have internal predecessors, (1111), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:42,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1113 transitions. [2022-10-15 17:49:42,586 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1113 transitions. Word has length 426 [2022-10-15 17:49:42,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:42,587 INFO L495 AbstractCegarLoop]: Abstraction has 1029 states and 1113 transitions. [2022-10-15 17:49:42,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 13.833333333333334) internal successors, (415), 30 states have internal predecessors, (415), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:42,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1113 transitions. [2022-10-15 17:49:42,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-10-15 17:49:42,596 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:42,597 INFO L195 NwaCegarLoop]: trace histogram [9, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:42,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:42,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-10-15 17:49:42,814 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:42,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:42,816 INFO L85 PathProgramCache]: Analyzing trace with hash 147062561, now seen corresponding path program 1 times [2022-10-15 17:49:42,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:42,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652766518] [2022-10-15 17:49:42,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:42,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:43,927 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 210 proven. 48 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-10-15 17:49:43,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:43,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652766518] [2022-10-15 17:49:43,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652766518] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:43,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694557068] [2022-10-15 17:49:43,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:43,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:43,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:43,930 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:43,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 17:49:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:44,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 1336 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-15 17:49:44,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:44,598 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 210 proven. 48 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-10-15 17:49:44,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:49:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 210 proven. 48 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-10-15 17:49:44,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694557068] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:49:44,907 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:49:44,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2022-10-15 17:49:44,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102482593] [2022-10-15 17:49:44,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:49:44,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-15 17:49:44,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:49:44,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-15 17:49:44,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:49:44,912 INFO L87 Difference]: Start difference. First operand 1029 states and 1113 transitions. Second operand has 9 states, 9 states have (on average 30.88888888888889) internal successors, (278), 9 states have internal predecessors, (278), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:45,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:49:45,269 INFO L93 Difference]: Finished difference Result 1484 states and 1613 transitions. [2022-10-15 17:49:45,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-15 17:49:45,270 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 30.88888888888889) internal successors, (278), 9 states have internal predecessors, (278), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 474 [2022-10-15 17:49:45,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:49:45,275 INFO L225 Difference]: With dead ends: 1484 [2022-10-15 17:49:45,275 INFO L226 Difference]: Without dead ends: 1484 [2022-10-15 17:49:45,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 978 GetRequests, 953 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-10-15 17:49:45,278 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 1109 mSDsluCounter, 2740 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 17:49:45,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 3226 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 17:49:45,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2022-10-15 17:49:45,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1028. [2022-10-15 17:49:45,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1024 states have (on average 1.0810546875) internal successors, (1107), 1026 states have internal predecessors, (1107), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:45,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1109 transitions. [2022-10-15 17:49:45,304 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1109 transitions. Word has length 474 [2022-10-15 17:49:45,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:49:45,305 INFO L495 AbstractCegarLoop]: Abstraction has 1028 states and 1109 transitions. [2022-10-15 17:49:45,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 30.88888888888889) internal successors, (278), 9 states have internal predecessors, (278), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:49:45,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1109 transitions. [2022-10-15 17:49:45,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2022-10-15 17:49:45,314 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:49:45,317 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:49:45,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 17:49:45,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:45,531 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, errorErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:49:45,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:49:45,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1610767229, now seen corresponding path program 1 times [2022-10-15 17:49:45,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:49:45,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252570745] [2022-10-15 17:49:45,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:45,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:49:45,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 126 proven. 575 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-10-15 17:49:47,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:49:47,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252570745] [2022-10-15 17:49:47,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252570745] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:49:47,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562132517] [2022-10-15 17:49:47,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:49:47,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:49:47,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:49:47,968 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 17:49:47,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 17:49:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:49:48,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 1478 conjuncts, 45 conjunts are in the unsatisfiable core [2022-10-15 17:49:48,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:49:49,761 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 167 proven. 516 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-10-15 17:49:49,762 INFO L328 TraceCheckSpWp]: Computing backward predicates...