/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:39:49,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:39:49,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:39:49,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:39:49,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:39:49,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:39:49,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:39:49,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:39:49,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:39:49,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:39:49,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:39:49,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:39:49,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:39:49,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:39:49,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:39:49,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:39:49,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:39:49,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:39:49,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:39:49,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:39:49,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:39:49,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:39:49,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:39:49,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:39:49,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:39:49,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:39:49,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:39:49,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:39:49,955 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 17:39:49,994 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:39:49,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:39:49,995 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:39:49,996 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:39:49,997 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:39:49,997 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:39:49,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:39:50,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:39:50,000 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:39:50,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:39:50,002 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:39:50,003 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:39:50,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:39:50,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:39:50,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:39:50,004 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:39:50,005 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:39:50,005 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:39:50,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:39:50,006 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:39:50,006 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:39:50,007 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:39:50,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:39:50,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:39:50,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:39:50,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:39:50,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:39:50,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:39:50,009 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:39:50,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:39:50,010 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:39:50,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:39:50,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:39:50,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:39:50,504 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:39:50,505 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:39:50,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:39:50,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28c6e74de/8cd728eb7b9a4e37b84ae96d3e45b08b/FLAGc2c424d89 [2022-10-15 17:39:51,220 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:39:51,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:39:51,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28c6e74de/8cd728eb7b9a4e37b84ae96d3e45b08b/FLAGc2c424d89 [2022-10-15 17:39:51,521 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28c6e74de/8cd728eb7b9a4e37b84ae96d3e45b08b [2022-10-15 17:39:51,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:39:51,533 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:39:51,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:39:51,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:39:51,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:39:51,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:39:51" (1/1) ... [2022-10-15 17:39:51,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f090e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:51, skipping insertion in model container [2022-10-15 17:39:51,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:39:51" (1/1) ... [2022-10-15 17:39:51,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:39:51,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:39:51,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[4938,4951] [2022-10-15 17:39:51,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:39:51,956 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:39:52,019 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[4938,4951] [2022-10-15 17:39:52,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:39:52,059 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:39:52,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:52 WrapperNode [2022-10-15 17:39:52,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:39:52,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:39:52,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:39:52,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:39:52,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:52" (1/1) ... [2022-10-15 17:39:52,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:52" (1/1) ... [2022-10-15 17:39:52,116 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 338 [2022-10-15 17:39:52,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:39:52,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:39:52,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:39:52,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:39:52,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:52" (1/1) ... [2022-10-15 17:39:52,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:52" (1/1) ... [2022-10-15 17:39:52,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:52" (1/1) ... [2022-10-15 17:39:52,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:52" (1/1) ... [2022-10-15 17:39:52,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:52" (1/1) ... [2022-10-15 17:39:52,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:52" (1/1) ... [2022-10-15 17:39:52,172 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:52" (1/1) ... [2022-10-15 17:39:52,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:52" (1/1) ... [2022-10-15 17:39:52,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:39:52,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:39:52,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:39:52,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:39:52,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:52" (1/1) ... [2022-10-15 17:39:52,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:39:52,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:39:52,253 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 17:39:52,276 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 17:39:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:39:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:39:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:39:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:39:52,506 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:39:52,509 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:39:52,993 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:39:53,002 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:39:53,002 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:39:53,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:39:53 BoogieIcfgContainer [2022-10-15 17:39:53,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:39:53,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:39:53,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:39:53,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:39:53,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:39:51" (1/3) ... [2022-10-15 17:39:53,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701b5d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:39:53, skipping insertion in model container [2022-10-15 17:39:53,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:39:52" (2/3) ... [2022-10-15 17:39:53,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701b5d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:39:53, skipping insertion in model container [2022-10-15 17:39:53,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:39:53" (3/3) ... [2022-10-15 17:39:53,035 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-10-15 17:39:53,058 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:39:53,059 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:39:53,144 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:39:53,153 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;@6d443c93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:39:53,154 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:39:53,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 79 states have (on average 1.7215189873417722) internal successors, (136), 81 states have internal predecessors, (136), 0 states have call successors, (0), 0 states 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 17:39:53,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 17:39:53,168 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:53,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 17:39:53,169 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:53,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:53,176 INFO L85 PathProgramCache]: Analyzing trace with hash 935621, now seen corresponding path program 1 times [2022-10-15 17:39:53,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:53,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850513984] [2022-10-15 17:39:53,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:53,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:53,495 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 17:39:53,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:53,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850513984] [2022-10-15 17:39:53,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850513984] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:53,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:53,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:39:53,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302206818] [2022-10-15 17:39:53,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:53,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:39:53,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:53,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:39:53,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:39:53,545 INFO L87 Difference]: Start difference. First operand has 82 states, 79 states have (on average 1.7215189873417722) internal successors, (136), 81 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:53,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:53,596 INFO L93 Difference]: Finished difference Result 81 states and 134 transitions. [2022-10-15 17:39:53,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:39:53,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-15 17:39:53,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:53,616 INFO L225 Difference]: With dead ends: 81 [2022-10-15 17:39:53,616 INFO L226 Difference]: Without dead ends: 78 [2022-10-15 17:39:53,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:39:53,623 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 131 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 133 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 17:39:53,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 133 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:39:53,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-15 17:39:53,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-10-15 17:39:53,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 77 states have internal predecessors, (108), 0 states have call successors, (0), 0 states 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 17:39:53,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 108 transitions. [2022-10-15 17:39:53,673 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 108 transitions. Word has length 4 [2022-10-15 17:39:53,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:53,674 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 108 transitions. [2022-10-15 17:39:53,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:53,674 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 108 transitions. [2022-10-15 17:39:53,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-15 17:39:53,676 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:53,677 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:53,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:39:53,677 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:53,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:53,679 INFO L85 PathProgramCache]: Analyzing trace with hash 377049112, now seen corresponding path program 1 times [2022-10-15 17:39:53,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:53,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082247175] [2022-10-15 17:39:53,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:53,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:53,966 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 17:39:53,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:53,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082247175] [2022-10-15 17:39:53,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082247175] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:53,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:53,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:39:53,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673388242] [2022-10-15 17:39:53,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:53,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:39:53,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:53,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:39:53,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:39:53,972 INFO L87 Difference]: Start difference. First operand 78 states and 108 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:54,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:54,034 INFO L93 Difference]: Finished difference Result 122 states and 176 transitions. [2022-10-15 17:39:54,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:39:54,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-15 17:39:54,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:54,041 INFO L225 Difference]: With dead ends: 122 [2022-10-15 17:39:54,042 INFO L226 Difference]: Without dead ends: 122 [2022-10-15 17:39:54,042 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 17:39:54,046 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 67 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:54,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 235 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:39:54,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-10-15 17:39:54,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2022-10-15 17:39:54,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.4705882352941178) internal successors, (175), 119 states have internal predecessors, (175), 0 states have call successors, (0), 0 states 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 17:39:54,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 175 transitions. [2022-10-15 17:39:54,090 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 175 transitions. Word has length 48 [2022-10-15 17:39:54,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:54,093 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 175 transitions. [2022-10-15 17:39:54,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:54,094 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 175 transitions. [2022-10-15 17:39:54,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-15 17:39:54,100 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:54,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:54,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:39:54,101 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:54,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:54,103 INFO L85 PathProgramCache]: Analyzing trace with hash 292717965, now seen corresponding path program 1 times [2022-10-15 17:39:54,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:54,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185808473] [2022-10-15 17:39:54,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:54,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:54,330 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 17:39:54,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:54,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185808473] [2022-10-15 17:39:54,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185808473] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:54,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:54,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:39:54,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366968861] [2022-10-15 17:39:54,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:54,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:39:54,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:54,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:39:54,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:39:54,334 INFO L87 Difference]: Start difference. First operand 120 states and 175 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:54,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:54,366 INFO L93 Difference]: Finished difference Result 198 states and 296 transitions. [2022-10-15 17:39:54,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:39:54,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-10-15 17:39:54,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:54,370 INFO L225 Difference]: With dead ends: 198 [2022-10-15 17:39:54,370 INFO L226 Difference]: Without dead ends: 198 [2022-10-15 17:39:54,371 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 17:39:54,373 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 62 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:54,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 231 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:39:54,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-10-15 17:39:54,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 196. [2022-10-15 17:39:54,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 1.5128205128205128) internal successors, (295), 195 states have internal predecessors, (295), 0 states have call successors, (0), 0 states 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 17:39:54,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 295 transitions. [2022-10-15 17:39:54,405 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 295 transitions. Word has length 49 [2022-10-15 17:39:54,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:54,406 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 295 transitions. [2022-10-15 17:39:54,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:54,406 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 295 transitions. [2022-10-15 17:39:54,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-15 17:39:54,408 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:54,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:54,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:39:54,409 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:54,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:54,410 INFO L85 PathProgramCache]: Analyzing trace with hash -875864605, now seen corresponding path program 1 times [2022-10-15 17:39:54,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:54,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249605653] [2022-10-15 17:39:54,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:54,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:54,654 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 17:39:54,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:54,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249605653] [2022-10-15 17:39:54,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249605653] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:54,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:54,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:39:54,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346749079] [2022-10-15 17:39:54,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:54,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:39:54,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:54,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:39:54,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:39:54,664 INFO L87 Difference]: Start difference. First operand 196 states and 295 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:54,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:54,724 INFO L93 Difference]: Finished difference Result 334 states and 508 transitions. [2022-10-15 17:39:54,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:39:54,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-15 17:39:54,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:54,730 INFO L225 Difference]: With dead ends: 334 [2022-10-15 17:39:54,731 INFO L226 Difference]: Without dead ends: 334 [2022-10-15 17:39:54,731 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 17:39:54,734 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 57 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:54,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 227 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:39:54,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-10-15 17:39:54,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 332. [2022-10-15 17:39:54,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 331 states have (on average 1.5317220543806647) internal successors, (507), 331 states have internal predecessors, (507), 0 states have call successors, (0), 0 states 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 17:39:54,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 507 transitions. [2022-10-15 17:39:54,782 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 507 transitions. Word has length 50 [2022-10-15 17:39:54,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:54,785 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 507 transitions. [2022-10-15 17:39:54,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:54,786 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 507 transitions. [2022-10-15 17:39:54,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-15 17:39:54,792 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:54,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:54,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:39:54,793 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:54,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:54,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1524907140, now seen corresponding path program 1 times [2022-10-15 17:39:54,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:54,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95779267] [2022-10-15 17:39:54,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:54,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:55,012 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 17:39:55,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:55,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95779267] [2022-10-15 17:39:55,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95779267] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:55,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:55,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:39:55,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479853557] [2022-10-15 17:39:55,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:55,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:39:55,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:55,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:39:55,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:39:55,016 INFO L87 Difference]: Start difference. First operand 332 states and 507 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:55,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:55,225 INFO L93 Difference]: Finished difference Result 2474 states and 3810 transitions. [2022-10-15 17:39:55,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 17:39:55,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-10-15 17:39:55,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:55,240 INFO L225 Difference]: With dead ends: 2474 [2022-10-15 17:39:55,241 INFO L226 Difference]: Without dead ends: 2474 [2022-10-15 17:39:55,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-15 17:39:55,243 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 697 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:55,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 1115 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:55,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-10-15 17:39:55,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 636. [2022-10-15 17:39:55,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 635 states have (on average 1.5291338582677165) internal successors, (971), 635 states have internal predecessors, (971), 0 states have call successors, (0), 0 states 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 17:39:55,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 971 transitions. [2022-10-15 17:39:55,289 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 971 transitions. Word has length 51 [2022-10-15 17:39:55,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:55,290 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 971 transitions. [2022-10-15 17:39:55,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:55,290 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 971 transitions. [2022-10-15 17:39:55,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-15 17:39:55,292 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:55,292 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 17:39:55,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:39:55,293 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:55,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:55,294 INFO L85 PathProgramCache]: Analyzing trace with hash -48905761, now seen corresponding path program 1 times [2022-10-15 17:39:55,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:55,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106512718] [2022-10-15 17:39:55,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:55,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:55,601 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 17:39:55,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:55,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106512718] [2022-10-15 17:39:55,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106512718] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:55,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:55,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:39:55,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315738795] [2022-10-15 17:39:55,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:55,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:39:55,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:55,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:39:55,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:39:55,605 INFO L87 Difference]: Start difference. First operand 636 states and 971 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:55,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:55,755 INFO L93 Difference]: Finished difference Result 638 states and 964 transitions. [2022-10-15 17:39:55,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:39:55,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-10-15 17:39:55,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:55,760 INFO L225 Difference]: With dead ends: 638 [2022-10-15 17:39:55,760 INFO L226 Difference]: Without dead ends: 638 [2022-10-15 17:39:55,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:39:55,762 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 163 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:55,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 416 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:55,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-10-15 17:39:55,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 636. [2022-10-15 17:39:55,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 635 states have (on average 1.5165354330708662) internal successors, (963), 635 states have internal predecessors, (963), 0 states have call successors, (0), 0 states 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 17:39:55,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 963 transitions. [2022-10-15 17:39:55,779 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 963 transitions. Word has length 53 [2022-10-15 17:39:55,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:55,780 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 963 transitions. [2022-10-15 17:39:55,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:55,780 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 963 transitions. [2022-10-15 17:39:55,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-15 17:39:55,782 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:55,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:55,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:39:55,782 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:55,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:55,783 INFO L85 PathProgramCache]: Analyzing trace with hash -69908416, now seen corresponding path program 1 times [2022-10-15 17:39:55,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:55,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254393399] [2022-10-15 17:39:55,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:55,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:55,882 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 17:39:55,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:55,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254393399] [2022-10-15 17:39:55,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254393399] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:55,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:55,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:39:55,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743410441] [2022-10-15 17:39:55,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:55,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:39:55,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:55,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:39:55,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:39:55,885 INFO L87 Difference]: Start difference. First operand 636 states and 963 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:55,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:55,912 INFO L93 Difference]: Finished difference Result 1158 states and 1708 transitions. [2022-10-15 17:39:55,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:39:55,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-10-15 17:39:55,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:55,919 INFO L225 Difference]: With dead ends: 1158 [2022-10-15 17:39:55,919 INFO L226 Difference]: Without dead ends: 1158 [2022-10-15 17:39:55,919 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 17:39:55,920 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 47 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:55,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 181 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:39:55,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-10-15 17:39:55,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1140. [2022-10-15 17:39:55,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1139 states have (on average 1.4846356453028973) internal successors, (1691), 1139 states have internal predecessors, (1691), 0 states have call successors, (0), 0 states 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 17:39:55,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1691 transitions. [2022-10-15 17:39:55,949 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1691 transitions. Word has length 53 [2022-10-15 17:39:55,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:55,949 INFO L495 AbstractCegarLoop]: Abstraction has 1140 states and 1691 transitions. [2022-10-15 17:39:55,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:55,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1691 transitions. [2022-10-15 17:39:55,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-15 17:39:55,951 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:55,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:55,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:39:55,952 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:55,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:55,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1517987980, now seen corresponding path program 1 times [2022-10-15 17:39:55,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:55,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101942220] [2022-10-15 17:39:55,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:55,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:56,085 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 17:39:56,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:56,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101942220] [2022-10-15 17:39:56,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101942220] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:56,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:56,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:39:56,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082594657] [2022-10-15 17:39:56,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:56,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:39:56,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:56,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:39:56,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:39:56,089 INFO L87 Difference]: Start difference. First operand 1140 states and 1691 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:56,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:56,168 INFO L93 Difference]: Finished difference Result 1140 states and 1675 transitions. [2022-10-15 17:39:56,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:39:56,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-10-15 17:39:56,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:56,174 INFO L225 Difference]: With dead ends: 1140 [2022-10-15 17:39:56,175 INFO L226 Difference]: Without dead ends: 1140 [2022-10-15 17:39:56,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:39:56,176 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 243 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:56,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 94 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:56,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2022-10-15 17:39:56,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1140. [2022-10-15 17:39:56,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1139 states have (on average 1.4705882352941178) internal successors, (1675), 1139 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states 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 17:39:56,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1675 transitions. [2022-10-15 17:39:56,207 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1675 transitions. Word has length 54 [2022-10-15 17:39:56,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:56,208 INFO L495 AbstractCegarLoop]: Abstraction has 1140 states and 1675 transitions. [2022-10-15 17:39:56,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:56,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1675 transitions. [2022-10-15 17:39:56,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-15 17:39:56,209 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:56,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:56,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:39:56,210 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:56,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:56,211 INFO L85 PathProgramCache]: Analyzing trace with hash -2047278481, now seen corresponding path program 1 times [2022-10-15 17:39:56,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:56,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380513838] [2022-10-15 17:39:56,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:56,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:56,338 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 17:39:56,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:56,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380513838] [2022-10-15 17:39:56,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380513838] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:56,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:56,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:39:56,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520720729] [2022-10-15 17:39:56,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:56,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:39:56,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:56,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:39:56,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:39:56,341 INFO L87 Difference]: Start difference. First operand 1140 states and 1675 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:56,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:56,450 INFO L93 Difference]: Finished difference Result 1140 states and 1659 transitions. [2022-10-15 17:39:56,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:39:56,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-10-15 17:39:56,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:56,457 INFO L225 Difference]: With dead ends: 1140 [2022-10-15 17:39:56,457 INFO L226 Difference]: Without dead ends: 1140 [2022-10-15 17:39:56,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:39:56,458 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 266 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:56,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 78 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:56,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2022-10-15 17:39:56,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1140. [2022-10-15 17:39:56,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1139 states have (on average 1.456540825285338) internal successors, (1659), 1139 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states 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 17:39:56,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1659 transitions. [2022-10-15 17:39:56,488 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1659 transitions. Word has length 54 [2022-10-15 17:39:56,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:56,489 INFO L495 AbstractCegarLoop]: Abstraction has 1140 states and 1659 transitions. [2022-10-15 17:39:56,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:56,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1659 transitions. [2022-10-15 17:39:56,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-15 17:39:56,490 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:56,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:56,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:39:56,491 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:56,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:56,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1919193174, now seen corresponding path program 1 times [2022-10-15 17:39:56,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:56,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634843572] [2022-10-15 17:39:56,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:56,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:56,604 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 17:39:56,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:56,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634843572] [2022-10-15 17:39:56,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634843572] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:56,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:56,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:39:56,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187408867] [2022-10-15 17:39:56,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:56,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:39:56,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:56,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:39:56,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:39:56,612 INFO L87 Difference]: Start difference. First operand 1140 states and 1659 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:56,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:56,692 INFO L93 Difference]: Finished difference Result 1140 states and 1643 transitions. [2022-10-15 17:39:56,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:39:56,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-10-15 17:39:56,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:56,699 INFO L225 Difference]: With dead ends: 1140 [2022-10-15 17:39:56,700 INFO L226 Difference]: Without dead ends: 1140 [2022-10-15 17:39:56,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:39:56,702 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 250 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:56,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 86 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:56,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2022-10-15 17:39:56,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1140. [2022-10-15 17:39:56,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 1139 states have (on average 1.4424934152765583) internal successors, (1643), 1139 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states 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 17:39:56,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1643 transitions. [2022-10-15 17:39:56,749 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1643 transitions. Word has length 54 [2022-10-15 17:39:56,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:56,749 INFO L495 AbstractCegarLoop]: Abstraction has 1140 states and 1643 transitions. [2022-10-15 17:39:56,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:56,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1643 transitions. [2022-10-15 17:39:56,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-15 17:39:56,751 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:56,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:56,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:39:56,752 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:56,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:56,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1053660785, now seen corresponding path program 1 times [2022-10-15 17:39:56,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:56,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981717987] [2022-10-15 17:39:56,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:56,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:57,073 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 17:39:57,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:57,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981717987] [2022-10-15 17:39:57,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981717987] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:57,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:57,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:39:57,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18479572] [2022-10-15 17:39:57,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:57,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:39:57,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:57,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:39:57,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:39:57,077 INFO L87 Difference]: Start difference. First operand 1140 states and 1643 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:57,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:57,132 INFO L93 Difference]: Finished difference Result 1927 states and 2755 transitions. [2022-10-15 17:39:57,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:39:57,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-10-15 17:39:57,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:57,143 INFO L225 Difference]: With dead ends: 1927 [2022-10-15 17:39:57,143 INFO L226 Difference]: Without dead ends: 1927 [2022-10-15 17:39:57,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:39:57,146 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 142 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:57,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 507 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:39:57,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2022-10-15 17:39:57,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1172. [2022-10-15 17:39:57,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1171 states have (on average 1.4235695986336465) internal successors, (1667), 1171 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states 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 17:39:57,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1667 transitions. [2022-10-15 17:39:57,225 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1667 transitions. Word has length 54 [2022-10-15 17:39:57,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:57,225 INFO L495 AbstractCegarLoop]: Abstraction has 1172 states and 1667 transitions. [2022-10-15 17:39:57,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:57,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1667 transitions. [2022-10-15 17:39:57,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-15 17:39:57,226 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:57,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:57,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:39:57,237 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:57,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:57,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1226019551, now seen corresponding path program 1 times [2022-10-15 17:39:57,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:57,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222447714] [2022-10-15 17:39:57,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:57,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:57,310 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 17:39:57,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:57,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222447714] [2022-10-15 17:39:57,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222447714] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:57,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:57,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:39:57,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981821867] [2022-10-15 17:39:57,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:57,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:39:57,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:57,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:39:57,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:39:57,313 INFO L87 Difference]: Start difference. First operand 1172 states and 1667 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:57,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:57,337 INFO L93 Difference]: Finished difference Result 1656 states and 2342 transitions. [2022-10-15 17:39:57,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:39:57,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-10-15 17:39:57,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:57,345 INFO L225 Difference]: With dead ends: 1656 [2022-10-15 17:39:57,346 INFO L226 Difference]: Without dead ends: 1656 [2022-10-15 17:39:57,346 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 17:39:57,347 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 66 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:57,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 234 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:39:57,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2022-10-15 17:39:57,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1654. [2022-10-15 17:39:57,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1653 states have (on average 1.4162129461584998) internal successors, (2341), 1653 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states 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 17:39:57,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2341 transitions. [2022-10-15 17:39:57,388 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2341 transitions. Word has length 54 [2022-10-15 17:39:57,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:57,388 INFO L495 AbstractCegarLoop]: Abstraction has 1654 states and 2341 transitions. [2022-10-15 17:39:57,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:57,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2341 transitions. [2022-10-15 17:39:57,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-15 17:39:57,391 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:57,391 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:39:57,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:39:57,391 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:57,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:57,392 INFO L85 PathProgramCache]: Analyzing trace with hash 595199301, now seen corresponding path program 1 times [2022-10-15 17:39:57,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:57,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658037179] [2022-10-15 17:39:57,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:57,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:57,563 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 17:39:57,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:57,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658037179] [2022-10-15 17:39:57,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658037179] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:57,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:57,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:39:57,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378393359] [2022-10-15 17:39:57,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:57,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:39:57,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:57,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:39:57,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:39:57,566 INFO L87 Difference]: Start difference. First operand 1654 states and 2341 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:57,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:57,702 INFO L93 Difference]: Finished difference Result 6846 states and 9685 transitions. [2022-10-15 17:39:57,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:39:57,703 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-10-15 17:39:57,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:57,739 INFO L225 Difference]: With dead ends: 6846 [2022-10-15 17:39:57,739 INFO L226 Difference]: Without dead ends: 6846 [2022-10-15 17:39:57,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:39:57,741 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 490 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:57,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 548 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:57,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6846 states. [2022-10-15 17:39:57,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6846 to 3278. [2022-10-15 17:39:57,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3278 states, 3277 states have (on average 1.4125724748245347) internal successors, (4629), 3277 states have internal predecessors, (4629), 0 states have call successors, (0), 0 states 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 17:39:57,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3278 states to 3278 states and 4629 transitions. [2022-10-15 17:39:57,915 INFO L78 Accepts]: Start accepts. Automaton has 3278 states and 4629 transitions. Word has length 77 [2022-10-15 17:39:57,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:57,916 INFO L495 AbstractCegarLoop]: Abstraction has 3278 states and 4629 transitions. [2022-10-15 17:39:57,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:57,916 INFO L276 IsEmpty]: Start isEmpty. Operand 3278 states and 4629 transitions. [2022-10-15 17:39:57,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-15 17:39:57,919 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:57,919 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:39:57,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:39:57,920 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:57,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:57,921 INFO L85 PathProgramCache]: Analyzing trace with hash -558746805, now seen corresponding path program 1 times [2022-10-15 17:39:57,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:57,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791210687] [2022-10-15 17:39:57,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:57,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:58,162 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 17:39:58,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:58,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791210687] [2022-10-15 17:39:58,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791210687] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:58,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:58,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:39:58,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63251016] [2022-10-15 17:39:58,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:58,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:39:58,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:58,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:39:58,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:39:58,165 INFO L87 Difference]: Start difference. First operand 3278 states and 4629 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:58,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:58,328 INFO L93 Difference]: Finished difference Result 8470 states and 11973 transitions. [2022-10-15 17:39:58,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:39:58,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-10-15 17:39:58,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:58,392 INFO L225 Difference]: With dead ends: 8470 [2022-10-15 17:39:58,393 INFO L226 Difference]: Without dead ends: 8470 [2022-10-15 17:39:58,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:39:58,394 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 473 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:58,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 577 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:58,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2022-10-15 17:39:58,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 5718. [2022-10-15 17:39:58,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5718 states, 5717 states have (on average 1.4065069092181215) internal successors, (8041), 5717 states have internal predecessors, (8041), 0 states have call successors, (0), 0 states 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 17:39:58,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5718 states to 5718 states and 8041 transitions. [2022-10-15 17:39:58,598 INFO L78 Accepts]: Start accepts. Automaton has 5718 states and 8041 transitions. Word has length 77 [2022-10-15 17:39:58,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:58,601 INFO L495 AbstractCegarLoop]: Abstraction has 5718 states and 8041 transitions. [2022-10-15 17:39:58,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:58,602 INFO L276 IsEmpty]: Start isEmpty. Operand 5718 states and 8041 transitions. [2022-10-15 17:39:58,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-15 17:39:58,605 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:58,605 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:39:58,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:39:58,605 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:58,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:58,606 INFO L85 PathProgramCache]: Analyzing trace with hash -262701377, now seen corresponding path program 1 times [2022-10-15 17:39:58,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:58,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003220470] [2022-10-15 17:39:58,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:58,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:58,796 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 17:39:58,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:58,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003220470] [2022-10-15 17:39:58,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003220470] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:58,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:58,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:39:58,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385392036] [2022-10-15 17:39:58,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:58,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:39:58,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:58,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:39:58,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:39:58,799 INFO L87 Difference]: Start difference. First operand 5718 states and 8041 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 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 17:39:58,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:58,940 INFO L93 Difference]: Finished difference Result 10094 states and 14261 transitions. [2022-10-15 17:39:58,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:39:58,940 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 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 77 [2022-10-15 17:39:58,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:58,964 INFO L225 Difference]: With dead ends: 10094 [2022-10-15 17:39:58,964 INFO L226 Difference]: Without dead ends: 10094 [2022-10-15 17:39:58,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:39:58,965 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 442 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:58,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 645 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:58,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10094 states. [2022-10-15 17:39:59,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10094 to 7342. [2022-10-15 17:39:59,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7342 states, 7341 states have (on average 1.4070290151205558) internal successors, (10329), 7341 states have internal predecessors, (10329), 0 states have call successors, (0), 0 states 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 17:39:59,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7342 states to 7342 states and 10329 transitions. [2022-10-15 17:39:59,161 INFO L78 Accepts]: Start accepts. Automaton has 7342 states and 10329 transitions. Word has length 77 [2022-10-15 17:39:59,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:59,161 INFO L495 AbstractCegarLoop]: Abstraction has 7342 states and 10329 transitions. [2022-10-15 17:39:59,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 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 17:39:59,162 INFO L276 IsEmpty]: Start isEmpty. Operand 7342 states and 10329 transitions. [2022-10-15 17:39:59,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-15 17:39:59,164 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:59,165 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:39:59,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:39:59,165 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:59,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:59,166 INFO L85 PathProgramCache]: Analyzing trace with hash -2055185859, now seen corresponding path program 1 times [2022-10-15 17:39:59,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:59,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092142425] [2022-10-15 17:39:59,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:59,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:59,359 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:39:59,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:59,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092142425] [2022-10-15 17:39:59,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092142425] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:59,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:59,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 17:39:59,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59799265] [2022-10-15 17:39:59,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:59,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 17:39:59,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:59,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 17:39:59,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 17:39:59,365 INFO L87 Difference]: Start difference. First operand 7342 states and 10329 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:59,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:59,563 INFO L93 Difference]: Finished difference Result 11214 states and 15861 transitions. [2022-10-15 17:39:59,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 17:39:59,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-10-15 17:39:59,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:59,588 INFO L225 Difference]: With dead ends: 11214 [2022-10-15 17:39:59,589 INFO L226 Difference]: Without dead ends: 11214 [2022-10-15 17:39:59,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-15 17:39:59,590 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 435 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:59,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 586 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:39:59,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11214 states. [2022-10-15 17:39:59,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11214 to 8462. [2022-10-15 17:39:59,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8462 states, 8461 states have (on average 1.4098806287672851) internal successors, (11929), 8461 states have internal predecessors, (11929), 0 states have call successors, (0), 0 states 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 17:39:59,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8462 states to 8462 states and 11929 transitions. [2022-10-15 17:39:59,799 INFO L78 Accepts]: Start accepts. Automaton has 8462 states and 11929 transitions. Word has length 78 [2022-10-15 17:39:59,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:39:59,800 INFO L495 AbstractCegarLoop]: Abstraction has 8462 states and 11929 transitions. [2022-10-15 17:39:59,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:59,801 INFO L276 IsEmpty]: Start isEmpty. Operand 8462 states and 11929 transitions. [2022-10-15 17:39:59,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 17:39:59,804 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:39:59,804 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 17:39:59,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:39:59,804 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:39:59,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:39:59,805 INFO L85 PathProgramCache]: Analyzing trace with hash -144941472, now seen corresponding path program 1 times [2022-10-15 17:39:59,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:39:59,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982305585] [2022-10-15 17:39:59,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:39:59,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:39:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:39:59,925 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 17:39:59,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:39:59,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982305585] [2022-10-15 17:39:59,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982305585] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:39:59,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:39:59,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:39:59,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576911127] [2022-10-15 17:39:59,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:39:59,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:39:59,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:39:59,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:39:59,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:39:59,928 INFO L87 Difference]: Start difference. First operand 8462 states and 11929 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:39:59,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:39:59,966 INFO L93 Difference]: Finished difference Result 6224 states and 8779 transitions. [2022-10-15 17:39:59,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:39:59,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-10-15 17:39:59,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:39:59,981 INFO L225 Difference]: With dead ends: 6224 [2022-10-15 17:39:59,981 INFO L226 Difference]: Without dead ends: 6224 [2022-10-15 17:39:59,981 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 17:39:59,982 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 48 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:39:59,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 226 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:39:59,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6224 states. [2022-10-15 17:40:00,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6224 to 6222. [2022-10-15 17:40:00,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6222 states, 6221 states have (on average 1.4110271660504743) internal successors, (8778), 6221 states have internal predecessors, (8778), 0 states have call successors, (0), 0 states 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 17:40:00,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6222 states to 6222 states and 8778 transitions. [2022-10-15 17:40:00,144 INFO L78 Accepts]: Start accepts. Automaton has 6222 states and 8778 transitions. Word has length 79 [2022-10-15 17:40:00,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:40:00,144 INFO L495 AbstractCegarLoop]: Abstraction has 6222 states and 8778 transitions. [2022-10-15 17:40:00,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:40:00,145 INFO L276 IsEmpty]: Start isEmpty. Operand 6222 states and 8778 transitions. [2022-10-15 17:40:00,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-10-15 17:40:00,148 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:40:00,149 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] [2022-10-15 17:40:00,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:40:00,149 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:40:00,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:40:00,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1559581035, now seen corresponding path program 1 times [2022-10-15 17:40:00,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:40:00,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750090138] [2022-10-15 17:40:00,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:40:00,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:40:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:40:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:40:00,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:40:00,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750090138] [2022-10-15 17:40:00,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750090138] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:40:00,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057128754] [2022-10-15 17:40:00,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:40:00,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:40:00,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:40:00,900 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 17:40:00,921 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 17:40:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:40:01,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 17:40:01,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:40:01,440 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:40:01,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:40:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 17:40:01,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057128754] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:40:01,677 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:40:01,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 18 [2022-10-15 17:40:01,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222307881] [2022-10-15 17:40:01,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:40:01,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 17:40:01,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:40:01,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 17:40:01,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2022-10-15 17:40:01,680 INFO L87 Difference]: Start difference. First operand 6222 states and 8778 transitions. Second operand has 18 states, 18 states have (on average 12.38888888888889) internal successors, (223), 18 states have internal predecessors, (223), 0 states have call successors, (0), 0 states 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 17:40:14,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:40:14,250 INFO L93 Difference]: Finished difference Result 108737 states and 143826 transitions. [2022-10-15 17:40:14,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 199 states. [2022-10-15 17:40:14,251 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 12.38888888888889) internal successors, (223), 18 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-10-15 17:40:14,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:40:14,533 INFO L225 Difference]: With dead ends: 108737 [2022-10-15 17:40:14,534 INFO L226 Difference]: Without dead ends: 108737 [2022-10-15 17:40:14,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20870 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=6456, Invalid=39126, Unknown=0, NotChecked=0, Total=45582 [2022-10-15 17:40:14,551 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 6927 mSDsluCounter, 1135 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6927 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 1950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:40:14,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6927 Valid, 1275 Invalid, 1950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 1648 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-10-15 17:40:14,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108737 states. [2022-10-15 17:40:16,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108737 to 46580. [2022-10-15 17:40:16,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46580 states, 46579 states have (on average 1.3533566628738272) internal successors, (63038), 46579 states have internal predecessors, (63038), 0 states have call successors, (0), 0 states 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 17:40:17,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46580 states to 46580 states and 63038 transitions. [2022-10-15 17:40:17,313 INFO L78 Accepts]: Start accepts. Automaton has 46580 states and 63038 transitions. Word has length 79 [2022-10-15 17:40:17,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:40:17,314 INFO L495 AbstractCegarLoop]: Abstraction has 46580 states and 63038 transitions. [2022-10-15 17:40:17,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.38888888888889) internal successors, (223), 18 states have internal predecessors, (223), 0 states have call successors, (0), 0 states 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 17:40:17,314 INFO L276 IsEmpty]: Start isEmpty. Operand 46580 states and 63038 transitions. [2022-10-15 17:40:17,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-15 17:40:17,319 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:40:17,320 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:40:17,369 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 17:40:17,534 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,SelfDestructingSolverStorable17 [2022-10-15 17:40:17,534 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:40:17,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:40:17,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1183040057, now seen corresponding path program 1 times [2022-10-15 17:40:17,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:40:17,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862296440] [2022-10-15 17:40:17,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:40:17,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:40:17,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:40:18,091 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:40:18,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:40:18,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862296440] [2022-10-15 17:40:18,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862296440] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:40:18,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004999635] [2022-10-15 17:40:18,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:40:18,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:40:18,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:40:18,094 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 17:40:18,102 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 17:40:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:40:18,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 17:40:18,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:40:19,121 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:40:19,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:40:19,769 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:40:19,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004999635] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:40:19,769 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:40:19,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2022-10-15 17:40:19,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91062176] [2022-10-15 17:40:19,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:40:19,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-15 17:40:19,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:40:19,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-15 17:40:19,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2022-10-15 17:40:19,772 INFO L87 Difference]: Start difference. First operand 46580 states and 63038 transitions. Second operand has 21 states, 21 states have (on average 8.238095238095237) internal successors, (173), 20 states have internal predecessors, (173), 0 states have call successors, (0), 0 states 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 17:40:22,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:40:22,742 INFO L93 Difference]: Finished difference Result 260327 states and 345925 transitions. [2022-10-15 17:40:22,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-15 17:40:22,747 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.238095238095237) internal successors, (173), 20 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-10-15 17:40:22,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:40:23,697 INFO L225 Difference]: With dead ends: 260327 [2022-10-15 17:40:23,697 INFO L226 Difference]: Without dead ends: 260327 [2022-10-15 17:40:23,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 146 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=651, Invalid=2001, Unknown=0, NotChecked=0, Total=2652 [2022-10-15 17:40:23,699 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 2698 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2698 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-15 17:40:23,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2698 Valid, 1175 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-15 17:40:24,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260327 states. [2022-10-15 17:40:26,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260327 to 108713. [2022-10-15 17:40:27,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108713 states, 108712 states have (on average 1.3388954301273088) internal successors, (145554), 108712 states have internal predecessors, (145554), 0 states have call successors, (0), 0 states 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 17:40:27,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108713 states to 108713 states and 145554 transitions. [2022-10-15 17:40:27,428 INFO L78 Accepts]: Start accepts. Automaton has 108713 states and 145554 transitions. Word has length 80 [2022-10-15 17:40:27,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:40:27,429 INFO L495 AbstractCegarLoop]: Abstraction has 108713 states and 145554 transitions. [2022-10-15 17:40:27,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.238095238095237) internal successors, (173), 20 states have internal predecessors, (173), 0 states have call successors, (0), 0 states 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 17:40:27,429 INFO L276 IsEmpty]: Start isEmpty. Operand 108713 states and 145554 transitions. [2022-10-15 17:40:27,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-15 17:40:27,433 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:40:27,433 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:40:27,474 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 17:40:27,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:40:27,648 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:40:27,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:40:27,649 INFO L85 PathProgramCache]: Analyzing trace with hash 421229389, now seen corresponding path program 1 times [2022-10-15 17:40:27,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:40:27,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988516883] [2022-10-15 17:40:27,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:40:27,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:40:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:40:28,272 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:40:28,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:40:28,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988516883] [2022-10-15 17:40:28,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988516883] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 17:40:28,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854229287] [2022-10-15 17:40:28,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:40:28,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 17:40:28,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:40:28,275 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 17:40:28,294 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 17:40:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:40:28,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-15 17:40:28,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 17:40:28,918 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:40:28,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 17:40:29,748 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:40:29,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854229287] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 17:40:29,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 17:40:29,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2022-10-15 17:40:29,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791384615] [2022-10-15 17:40:29,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 17:40:29,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-15 17:40:29,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:40:29,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-15 17:40:29,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2022-10-15 17:40:29,754 INFO L87 Difference]: Start difference. First operand 108713 states and 145554 transitions. Second operand has 23 states, 23 states have (on average 8.0) internal successors, (184), 22 states have internal predecessors, (184), 0 states have call successors, (0), 0 states 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 17:40:33,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:40:33,524 INFO L93 Difference]: Finished difference Result 474844 states and 627633 transitions. [2022-10-15 17:40:33,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-15 17:40:33,525 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 8.0) internal successors, (184), 22 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-10-15 17:40:33,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:40:34,572 INFO L225 Difference]: With dead ends: 474844 [2022-10-15 17:40:34,573 INFO L226 Difference]: Without dead ends: 474844 [2022-10-15 17:40:34,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=700, Invalid=1952, Unknown=0, NotChecked=0, Total=2652 [2022-10-15 17:40:34,575 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 2285 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2285 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 17:40:34,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2285 Valid, 1111 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 17:40:34,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474844 states.