/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_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 17:44:05,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 17:44:05,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 17:44:05,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 17:44:05,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 17:44:05,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 17:44:05,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 17:44:05,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 17:44:05,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 17:44:05,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 17:44:05,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 17:44:05,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 17:44:05,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 17:44:05,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 17:44:05,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 17:44:05,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 17:44:05,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 17:44:05,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 17:44:05,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 17:44:05,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 17:44:05,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 17:44:05,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 17:44:05,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 17:44:05,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 17:44:05,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 17:44:05,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 17:44:05,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 17:44:05,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 17:44:05,619 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 17:44:05,649 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 17:44:05,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 17:44:05,650 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 17:44:05,650 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 17:44:05,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 17:44:05,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 17:44:05,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 17:44:05,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 17:44:05,652 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 17:44:05,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 17:44:05,653 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 17:44:05,653 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 17:44:05,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 17:44:05,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 17:44:05,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 17:44:05,654 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 17:44:05,654 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 17:44:05,654 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 17:44:05,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 17:44:05,655 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 17:44:05,655 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 17:44:05,655 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 17:44:05,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 17:44:05,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 17:44:05,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 17:44:05,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:44:05,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 17:44:05,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 17:44:05,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 17:44:05,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 17:44:05,657 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 17:44:06,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 17:44:06,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 17:44:06,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 17:44:06,178 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 17:44:06,179 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 17:44:06,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2022-10-15 17:44:06,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d81bf952a/b9bdc4765ea64d6aa3b1e7e35a667cd8/FLAG3d5e7a5a7 [2022-10-15 17:44:07,047 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 17:44:07,047 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2022-10-15 17:44:07,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d81bf952a/b9bdc4765ea64d6aa3b1e7e35a667cd8/FLAG3d5e7a5a7 [2022-10-15 17:44:07,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d81bf952a/b9bdc4765ea64d6aa3b1e7e35a667cd8 [2022-10-15 17:44:07,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 17:44:07,092 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 17:44:07,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 17:44:07,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 17:44:07,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 17:44:07,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:44:07" (1/1) ... [2022-10-15 17:44:07,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42922ea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:44:07, skipping insertion in model container [2022-10-15 17:44:07,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 05:44:07" (1/1) ... [2022-10-15 17:44:07,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 17:44:07,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 17:44:07,581 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_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[15968,15981] [2022-10-15 17:44:07,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:44:07,695 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 17:44:07,894 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_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[15968,15981] [2022-10-15 17:44:07,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 17:44:07,987 INFO L208 MainTranslator]: Completed translation [2022-10-15 17:44:07,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:44:07 WrapperNode [2022-10-15 17:44:07,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 17:44:07,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 17:44:07,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 17:44:07,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 17:44:07,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:44:07" (1/1) ... [2022-10-15 17:44:08,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:44:07" (1/1) ... [2022-10-15 17:44:08,112 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1294 [2022-10-15 17:44:08,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 17:44:08,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 17:44:08,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 17:44:08,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 17:44:08,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:44:07" (1/1) ... [2022-10-15 17:44:08,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:44:07" (1/1) ... [2022-10-15 17:44:08,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:44:07" (1/1) ... [2022-10-15 17:44:08,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:44:07" (1/1) ... [2022-10-15 17:44:08,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:44:07" (1/1) ... [2022-10-15 17:44:08,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:44:07" (1/1) ... [2022-10-15 17:44:08,181 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:44:07" (1/1) ... [2022-10-15 17:44:08,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:44:07" (1/1) ... [2022-10-15 17:44:08,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 17:44:08,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 17:44:08,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 17:44:08,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 17:44:08,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:44:07" (1/1) ... [2022-10-15 17:44:08,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 17:44:08,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 17:44:08,256 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 17:44:08,273 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 17:44:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 17:44:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 17:44:08,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 17:44:08,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 17:44:08,527 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 17:44:08,530 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 17:44:09,952 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 17:44:09,973 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 17:44:09,973 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 17:44:09,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:44:09 BoogieIcfgContainer [2022-10-15 17:44:09,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 17:44:09,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 17:44:09,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 17:44:09,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 17:44:09,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 05:44:07" (1/3) ... [2022-10-15 17:44:09,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5400ba59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:44:09, skipping insertion in model container [2022-10-15 17:44:09,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 05:44:07" (2/3) ... [2022-10-15 17:44:09,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5400ba59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 05:44:09, skipping insertion in model container [2022-10-15 17:44:09,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 05:44:09" (3/3) ... [2022-10-15 17:44:09,993 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2022-10-15 17:44:10,020 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 17:44:10,021 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-15 17:44:10,116 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 17:44:10,129 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;@7b2a804c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 17:44:10,130 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-15 17:44:10,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 338 states, 335 states have (on average 1.7761194029850746) internal successors, (595), 337 states have internal predecessors, (595), 0 states have call successors, (0), 0 states 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 17:44:10,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 17:44:10,162 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:10,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:10,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:10,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:10,176 INFO L85 PathProgramCache]: Analyzing trace with hash 962702079, now seen corresponding path program 1 times [2022-10-15 17:44:10,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:10,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611531485] [2022-10-15 17:44:10,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:10,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:10,634 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 17:44:10,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:10,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611531485] [2022-10-15 17:44:10,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611531485] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:10,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:10,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 17:44:10,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093858672] [2022-10-15 17:44:10,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:10,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:44:10,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:10,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:44:10,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:44:10,699 INFO L87 Difference]: Start difference. First operand has 338 states, 335 states have (on average 1.7761194029850746) internal successors, (595), 337 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:44:10,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:10,800 INFO L93 Difference]: Finished difference Result 337 states and 593 transitions. [2022-10-15 17:44:10,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:44:10,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-15 17:44:10,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:10,832 INFO L225 Difference]: With dead ends: 337 [2022-10-15 17:44:10,832 INFO L226 Difference]: Without dead ends: 334 [2022-10-15 17:44:10,834 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 17:44:10,839 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 578 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 592 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 17:44:10,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 592 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:44:10,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2022-10-15 17:44:10,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2022-10-15 17:44:10,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 333 states have (on average 1.4804804804804805) internal successors, (493), 333 states have internal predecessors, (493), 0 states have call successors, (0), 0 states 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 17:44:10,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 493 transitions. [2022-10-15 17:44:10,909 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 493 transitions. Word has length 16 [2022-10-15 17:44:10,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:10,910 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 493 transitions. [2022-10-15 17:44:10,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 17:44:10,910 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 493 transitions. [2022-10-15 17:44:10,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-10-15 17:44:10,918 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:10,918 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:10,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 17:44:10,919 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:10,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:10,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1686891750, now seen corresponding path program 1 times [2022-10-15 17:44:10,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:10,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716012423] [2022-10-15 17:44:10,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:10,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:11,520 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 17:44:11,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:11,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716012423] [2022-10-15 17:44:11,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716012423] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:11,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:11,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:44:11,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360719550] [2022-10-15 17:44:11,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:11,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:44:11,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:11,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:44:11,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:44:11,529 INFO L87 Difference]: Start difference. First operand 334 states and 493 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states 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 17:44:11,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:11,666 INFO L93 Difference]: Finished difference Result 543 states and 811 transitions. [2022-10-15 17:44:11,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:44:11,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2022-10-15 17:44:11,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:11,676 INFO L225 Difference]: With dead ends: 543 [2022-10-15 17:44:11,676 INFO L226 Difference]: Without dead ends: 543 [2022-10-15 17:44:11,682 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 17:44:11,685 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 316 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:11,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 810 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:44:11,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-10-15 17:44:11,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 541. [2022-10-15 17:44:11,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 540 states have (on average 1.5) internal successors, (810), 540 states have internal predecessors, (810), 0 states have call successors, (0), 0 states 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 17:44:11,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 810 transitions. [2022-10-15 17:44:11,734 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 810 transitions. Word has length 153 [2022-10-15 17:44:11,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:11,735 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 810 transitions. [2022-10-15 17:44:11,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states 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 17:44:11,736 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 810 transitions. [2022-10-15 17:44:11,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-10-15 17:44:11,742 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:11,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:11,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 17:44:11,743 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:11,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:11,744 INFO L85 PathProgramCache]: Analyzing trace with hash -2064713451, now seen corresponding path program 1 times [2022-10-15 17:44:11,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:11,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419639261] [2022-10-15 17:44:11,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:11,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:12,538 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 17:44:12,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:12,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419639261] [2022-10-15 17:44:12,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419639261] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:12,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:12,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:44:12,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885708421] [2022-10-15 17:44:12,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:12,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:44:12,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:12,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:44:12,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:44:12,543 INFO L87 Difference]: Start difference. First operand 541 states and 810 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states 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 17:44:12,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:12,636 INFO L93 Difference]: Finished difference Result 1044 states and 1544 transitions. [2022-10-15 17:44:12,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:44:12,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2022-10-15 17:44:12,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:12,643 INFO L225 Difference]: With dead ends: 1044 [2022-10-15 17:44:12,643 INFO L226 Difference]: Without dead ends: 1044 [2022-10-15 17:44:12,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:44:12,645 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 1068 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:12,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 1208 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:44:12,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-10-15 17:44:12,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1042. [2022-10-15 17:44:12,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 1041 states have (on average 1.4822286263208453) internal successors, (1543), 1041 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states 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 17:44:12,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1543 transitions. [2022-10-15 17:44:12,683 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1543 transitions. Word has length 153 [2022-10-15 17:44:12,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:12,684 INFO L495 AbstractCegarLoop]: Abstraction has 1042 states and 1543 transitions. [2022-10-15 17:44:12,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states 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 17:44:12,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1543 transitions. [2022-10-15 17:44:12,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-15 17:44:12,692 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:12,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:12,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 17:44:12,693 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:12,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:12,693 INFO L85 PathProgramCache]: Analyzing trace with hash -2039605151, now seen corresponding path program 1 times [2022-10-15 17:44:12,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:12,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292549205] [2022-10-15 17:44:12,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:12,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:12,835 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 17:44:12,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:12,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292549205] [2022-10-15 17:44:12,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292549205] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:12,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:12,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:44:12,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911639495] [2022-10-15 17:44:12,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:12,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:44:12,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:12,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:44:12,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:44:12,844 INFO L87 Difference]: Start difference. First operand 1042 states and 1543 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 17:44:12,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:12,876 INFO L93 Difference]: Finished difference Result 2074 states and 3069 transitions. [2022-10-15 17:44:12,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:44:12,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2022-10-15 17:44:12,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:12,889 INFO L225 Difference]: With dead ends: 2074 [2022-10-15 17:44:12,889 INFO L226 Difference]: Without dead ends: 2074 [2022-10-15 17:44:12,890 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 17:44:12,891 INFO L413 NwaCegarLoop]: 972 mSDtfsCounter, 482 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:12,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 1456 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:44:12,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2022-10-15 17:44:12,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 1044. [2022-10-15 17:44:12,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 1043 states have (on average 1.4813039309683604) internal successors, (1545), 1043 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 17:44:12,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1545 transitions. [2022-10-15 17:44:12,937 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1545 transitions. Word has length 154 [2022-10-15 17:44:12,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:12,937 INFO L495 AbstractCegarLoop]: Abstraction has 1044 states and 1545 transitions. [2022-10-15 17:44:12,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states 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 17:44:12,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1545 transitions. [2022-10-15 17:44:12,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-10-15 17:44:12,942 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:12,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:12,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 17:44:12,942 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:12,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:12,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1427333698, now seen corresponding path program 1 times [2022-10-15 17:44:12,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:12,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198693555] [2022-10-15 17:44:12,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:12,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:13,095 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 17:44:13,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:13,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198693555] [2022-10-15 17:44:13,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198693555] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:13,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:13,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:44:13,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427746551] [2022-10-15 17:44:13,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:13,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:44:13,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:13,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:44:13,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:44:13,100 INFO L87 Difference]: Start difference. First operand 1044 states and 1545 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states 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 17:44:13,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:13,166 INFO L93 Difference]: Finished difference Result 1836 states and 2678 transitions. [2022-10-15 17:44:13,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:44:13,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2022-10-15 17:44:13,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:13,181 INFO L225 Difference]: With dead ends: 1836 [2022-10-15 17:44:13,181 INFO L226 Difference]: Without dead ends: 1836 [2022-10-15 17:44:13,181 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 17:44:13,186 INFO L413 NwaCegarLoop]: 933 mSDtfsCounter, 417 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:13,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1380 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:44:13,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2022-10-15 17:44:13,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1834. [2022-10-15 17:44:13,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1833 states have (on average 1.4604473540643754) internal successors, (2677), 1833 states have internal predecessors, (2677), 0 states have call successors, (0), 0 states 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 17:44:13,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2677 transitions. [2022-10-15 17:44:13,265 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2677 transitions. Word has length 155 [2022-10-15 17:44:13,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:13,266 INFO L495 AbstractCegarLoop]: Abstraction has 1834 states and 2677 transitions. [2022-10-15 17:44:13,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states 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 17:44:13,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2677 transitions. [2022-10-15 17:44:13,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-10-15 17:44:13,271 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:13,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:13,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 17:44:13,273 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:13,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:13,274 INFO L85 PathProgramCache]: Analyzing trace with hash -697762299, now seen corresponding path program 1 times [2022-10-15 17:44:13,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:13,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375090152] [2022-10-15 17:44:13,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:13,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:13,774 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 17:44:13,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:13,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375090152] [2022-10-15 17:44:13,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375090152] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:13,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:13,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:44:13,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199916813] [2022-10-15 17:44:13,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:13,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:44:13,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:13,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:44:13,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:44:13,780 INFO L87 Difference]: Start difference. First operand 1834 states and 2677 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 0 states have call successors, (0), 0 states 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 17:44:13,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:13,919 INFO L93 Difference]: Finished difference Result 3360 states and 4851 transitions. [2022-10-15 17:44:13,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:44:13,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2022-10-15 17:44:13,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:13,939 INFO L225 Difference]: With dead ends: 3360 [2022-10-15 17:44:13,940 INFO L226 Difference]: Without dead ends: 3360 [2022-10-15 17:44:13,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:44:13,944 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 1529 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:13,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 1206 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:44:13,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3360 states. [2022-10-15 17:44:14,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3360 to 3358. [2022-10-15 17:44:14,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3358 states, 3357 states have (on average 1.4447423294608281) internal successors, (4850), 3357 states have internal predecessors, (4850), 0 states have call successors, (0), 0 states 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 17:44:14,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3358 states to 3358 states and 4850 transitions. [2022-10-15 17:44:14,080 INFO L78 Accepts]: Start accepts. Automaton has 3358 states and 4850 transitions. Word has length 155 [2022-10-15 17:44:14,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:14,084 INFO L495 AbstractCegarLoop]: Abstraction has 3358 states and 4850 transitions. [2022-10-15 17:44:14,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 0 states have call successors, (0), 0 states 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 17:44:14,084 INFO L276 IsEmpty]: Start isEmpty. Operand 3358 states and 4850 transitions. [2022-10-15 17:44:14,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-10-15 17:44:14,091 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:14,092 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:14,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 17:44:14,092 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:14,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:14,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1444100468, now seen corresponding path program 1 times [2022-10-15 17:44:14,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:14,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902150566] [2022-10-15 17:44:14,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:14,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:14,613 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 17:44:14,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:14,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902150566] [2022-10-15 17:44:14,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902150566] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:14,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:14,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:44:14,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048020977] [2022-10-15 17:44:14,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:14,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:44:14,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:14,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:44:14,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:44:14,617 INFO L87 Difference]: Start difference. First operand 3358 states and 4850 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states 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 17:44:14,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:14,740 INFO L93 Difference]: Finished difference Result 6469 states and 9212 transitions. [2022-10-15 17:44:14,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:44:14,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2022-10-15 17:44:14,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:14,775 INFO L225 Difference]: With dead ends: 6469 [2022-10-15 17:44:14,776 INFO L226 Difference]: Without dead ends: 6469 [2022-10-15 17:44:14,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:44:14,777 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 973 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:14,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 1266 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:44:14,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6469 states. [2022-10-15 17:44:14,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6469 to 6467. [2022-10-15 17:44:14,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6467 states, 6466 states have (on average 1.4245283018867925) internal successors, (9211), 6466 states have internal predecessors, (9211), 0 states have call successors, (0), 0 states 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 17:44:15,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6467 states to 6467 states and 9211 transitions. [2022-10-15 17:44:15,010 INFO L78 Accepts]: Start accepts. Automaton has 6467 states and 9211 transitions. Word has length 155 [2022-10-15 17:44:15,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:15,010 INFO L495 AbstractCegarLoop]: Abstraction has 6467 states and 9211 transitions. [2022-10-15 17:44:15,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states 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 17:44:15,011 INFO L276 IsEmpty]: Start isEmpty. Operand 6467 states and 9211 transitions. [2022-10-15 17:44:15,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-10-15 17:44:15,023 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:15,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:15,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 17:44:15,024 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:15,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:15,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1505045856, now seen corresponding path program 1 times [2022-10-15 17:44:15,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:15,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038115282] [2022-10-15 17:44:15,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:15,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:15,150 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 17:44:15,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:15,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038115282] [2022-10-15 17:44:15,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038115282] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:15,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:15,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:44:15,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503505890] [2022-10-15 17:44:15,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:15,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:44:15,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:15,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:44:15,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:44:15,154 INFO L87 Difference]: Start difference. First operand 6467 states and 9211 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states 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 17:44:15,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:15,246 INFO L93 Difference]: Finished difference Result 12873 states and 18323 transitions. [2022-10-15 17:44:15,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:44:15,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 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 156 [2022-10-15 17:44:15,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:15,316 INFO L225 Difference]: With dead ends: 12873 [2022-10-15 17:44:15,316 INFO L226 Difference]: Without dead ends: 12873 [2022-10-15 17:44:15,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:44:15,318 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 468 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:15,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1108 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:44:15,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12873 states. [2022-10-15 17:44:15,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12873 to 6477. [2022-10-15 17:44:15,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6477 states, 6476 states have (on average 1.4238727609635577) internal successors, (9221), 6476 states have internal predecessors, (9221), 0 states have call successors, (0), 0 states 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 17:44:15,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6477 states to 6477 states and 9221 transitions. [2022-10-15 17:44:15,728 INFO L78 Accepts]: Start accepts. Automaton has 6477 states and 9221 transitions. Word has length 156 [2022-10-15 17:44:15,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:15,729 INFO L495 AbstractCegarLoop]: Abstraction has 6477 states and 9221 transitions. [2022-10-15 17:44:15,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states 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 17:44:15,730 INFO L276 IsEmpty]: Start isEmpty. Operand 6477 states and 9221 transitions. [2022-10-15 17:44:15,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-10-15 17:44:15,744 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:15,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:15,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 17:44:15,745 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:15,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:15,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1440271021, now seen corresponding path program 1 times [2022-10-15 17:44:15,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:15,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63473410] [2022-10-15 17:44:15,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:15,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:16,211 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 17:44:16,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:16,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63473410] [2022-10-15 17:44:16,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63473410] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:16,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:16,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:44:16,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378732057] [2022-10-15 17:44:16,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:16,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:44:16,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:16,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:44:16,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:44:16,216 INFO L87 Difference]: Start difference. First operand 6477 states and 9221 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states 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 17:44:16,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:16,375 INFO L93 Difference]: Finished difference Result 12379 states and 17384 transitions. [2022-10-15 17:44:16,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:44:16,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 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 157 [2022-10-15 17:44:16,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:16,413 INFO L225 Difference]: With dead ends: 12379 [2022-10-15 17:44:16,413 INFO L226 Difference]: Without dead ends: 12379 [2022-10-15 17:44:16,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:44:16,417 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 1001 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:16,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 1223 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:44:16,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12379 states. [2022-10-15 17:44:16,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12379 to 12377. [2022-10-15 17:44:16,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12377 states, 12376 states have (on average 1.4045733678086618) internal successors, (17383), 12376 states have internal predecessors, (17383), 0 states have call successors, (0), 0 states 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 17:44:16,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12377 states to 12377 states and 17383 transitions. [2022-10-15 17:44:16,802 INFO L78 Accepts]: Start accepts. Automaton has 12377 states and 17383 transitions. Word has length 157 [2022-10-15 17:44:16,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:16,803 INFO L495 AbstractCegarLoop]: Abstraction has 12377 states and 17383 transitions. [2022-10-15 17:44:16,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states 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 17:44:16,804 INFO L276 IsEmpty]: Start isEmpty. Operand 12377 states and 17383 transitions. [2022-10-15 17:44:16,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-10-15 17:44:16,826 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:16,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:16,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 17:44:16,827 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:16,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:16,833 INFO L85 PathProgramCache]: Analyzing trace with hash 118105567, now seen corresponding path program 1 times [2022-10-15 17:44:16,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:16,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840254629] [2022-10-15 17:44:16,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:16,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:16,958 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 17:44:16,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:16,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840254629] [2022-10-15 17:44:16,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840254629] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:16,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:16,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:44:16,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864984009] [2022-10-15 17:44:16,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:16,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:44:16,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:16,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:44:16,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:44:16,962 INFO L87 Difference]: Start difference. First operand 12377 states and 17383 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states 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 17:44:17,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:17,172 INFO L93 Difference]: Finished difference Result 24471 states and 34372 transitions. [2022-10-15 17:44:17,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:44:17,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 158 [2022-10-15 17:44:17,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:17,229 INFO L225 Difference]: With dead ends: 24471 [2022-10-15 17:44:17,229 INFO L226 Difference]: Without dead ends: 24471 [2022-10-15 17:44:17,230 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 17:44:17,230 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 454 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:17,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 1192 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:44:17,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24471 states. [2022-10-15 17:44:17,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24471 to 12397. [2022-10-15 17:44:17,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12397 states, 12396 states have (on average 1.4039206195546952) internal successors, (17403), 12396 states have internal predecessors, (17403), 0 states have call successors, (0), 0 states 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 17:44:17,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12397 states to 12397 states and 17403 transitions. [2022-10-15 17:44:17,886 INFO L78 Accepts]: Start accepts. Automaton has 12397 states and 17403 transitions. Word has length 158 [2022-10-15 17:44:17,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:17,887 INFO L495 AbstractCegarLoop]: Abstraction has 12397 states and 17403 transitions. [2022-10-15 17:44:17,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states 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 17:44:17,887 INFO L276 IsEmpty]: Start isEmpty. Operand 12397 states and 17403 transitions. [2022-10-15 17:44:17,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-10-15 17:44:17,906 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:17,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:17,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 17:44:17,907 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:17,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:17,908 INFO L85 PathProgramCache]: Analyzing trace with hash 2082450610, now seen corresponding path program 1 times [2022-10-15 17:44:17,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:17,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008601818] [2022-10-15 17:44:17,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:17,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:18,402 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 17:44:18,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:18,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008601818] [2022-10-15 17:44:18,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008601818] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:18,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:18,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:44:18,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86901853] [2022-10-15 17:44:18,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:18,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:44:18,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:18,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:44:18,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:44:18,406 INFO L87 Difference]: Start difference. First operand 12397 states and 17403 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states 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 17:44:18,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:18,483 INFO L93 Difference]: Finished difference Result 9217 states and 12887 transitions. [2022-10-15 17:44:18,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:44:18,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2022-10-15 17:44:18,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:18,506 INFO L225 Difference]: With dead ends: 9217 [2022-10-15 17:44:18,506 INFO L226 Difference]: Without dead ends: 8890 [2022-10-15 17:44:18,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:44:18,508 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 65 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:18,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1511 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:44:18,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8890 states. [2022-10-15 17:44:18,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8890 to 8890. [2022-10-15 17:44:18,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8890 states, 8889 states have (on average 1.4063449206884915) internal successors, (12501), 8889 states have internal predecessors, (12501), 0 states have call successors, (0), 0 states 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 17:44:18,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8890 states to 8890 states and 12501 transitions. [2022-10-15 17:44:18,767 INFO L78 Accepts]: Start accepts. Automaton has 8890 states and 12501 transitions. Word has length 159 [2022-10-15 17:44:18,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:18,768 INFO L495 AbstractCegarLoop]: Abstraction has 8890 states and 12501 transitions. [2022-10-15 17:44:18,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states 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 17:44:18,769 INFO L276 IsEmpty]: Start isEmpty. Operand 8890 states and 12501 transitions. [2022-10-15 17:44:18,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-10-15 17:44:18,786 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:18,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:44:18,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 17:44:18,797 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:18,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:18,798 INFO L85 PathProgramCache]: Analyzing trace with hash -963424656, now seen corresponding path program 1 times [2022-10-15 17:44:18,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:18,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088867743] [2022-10-15 17:44:18,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:18,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:18,988 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 17:44:18,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:18,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088867743] [2022-10-15 17:44:18,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088867743] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:18,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:18,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:44:18,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551495490] [2022-10-15 17:44:18,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:18,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:44:18,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:18,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:44:18,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:44:18,991 INFO L87 Difference]: Start difference. First operand 8890 states and 12501 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states 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 17:44:19,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:19,087 INFO L93 Difference]: Finished difference Result 13276 states and 18978 transitions. [2022-10-15 17:44:19,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:44:19,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 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 163 [2022-10-15 17:44:19,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:19,116 INFO L225 Difference]: With dead ends: 13276 [2022-10-15 17:44:19,117 INFO L226 Difference]: Without dead ends: 13276 [2022-10-15 17:44:19,117 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 17:44:19,118 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 307 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:19,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 1044 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:44:19,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13276 states. [2022-10-15 17:44:19,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13276 to 11474. [2022-10-15 17:44:19,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11474 states, 11473 states have (on average 1.447659722827508) internal successors, (16609), 11473 states have internal predecessors, (16609), 0 states have call successors, (0), 0 states 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 17:44:19,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11474 states to 11474 states and 16609 transitions. [2022-10-15 17:44:19,479 INFO L78 Accepts]: Start accepts. Automaton has 11474 states and 16609 transitions. Word has length 163 [2022-10-15 17:44:19,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:19,479 INFO L495 AbstractCegarLoop]: Abstraction has 11474 states and 16609 transitions. [2022-10-15 17:44:19,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states 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 17:44:19,480 INFO L276 IsEmpty]: Start isEmpty. Operand 11474 states and 16609 transitions. [2022-10-15 17:44:19,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-15 17:44:19,494 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:19,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:19,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 17:44:19,495 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:19,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:19,495 INFO L85 PathProgramCache]: Analyzing trace with hash -82600529, now seen corresponding path program 1 times [2022-10-15 17:44:19,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:19,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115245248] [2022-10-15 17:44:19,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:19,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:19,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:44:19,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:19,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115245248] [2022-10-15 17:44:19,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115245248] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:19,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:19,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:44:19,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807007066] [2022-10-15 17:44:19,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:19,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:44:19,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:19,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:44:19,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:44:19,631 INFO L87 Difference]: Start difference. First operand 11474 states and 16609 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 17:44:19,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:19,735 INFO L93 Difference]: Finished difference Result 21590 states and 30910 transitions. [2022-10-15 17:44:19,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:44:19,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2022-10-15 17:44:19,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:19,779 INFO L225 Difference]: With dead ends: 21590 [2022-10-15 17:44:19,779 INFO L226 Difference]: Without dead ends: 21590 [2022-10-15 17:44:19,779 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 17:44:19,780 INFO L413 NwaCegarLoop]: 904 mSDtfsCounter, 406 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:19,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 1346 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:44:19,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21590 states. [2022-10-15 17:44:20,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21590 to 21588. [2022-10-15 17:44:20,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21588 states, 21587 states have (on average 1.4318339741511095) internal successors, (30909), 21587 states have internal predecessors, (30909), 0 states have call successors, (0), 0 states 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 17:44:20,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21588 states to 21588 states and 30909 transitions. [2022-10-15 17:44:20,330 INFO L78 Accepts]: Start accepts. Automaton has 21588 states and 30909 transitions. Word has length 166 [2022-10-15 17:44:20,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:20,330 INFO L495 AbstractCegarLoop]: Abstraction has 21588 states and 30909 transitions. [2022-10-15 17:44:20,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 17:44:20,331 INFO L276 IsEmpty]: Start isEmpty. Operand 21588 states and 30909 transitions. [2022-10-15 17:44:20,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-15 17:44:20,354 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:20,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:20,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 17:44:20,355 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:20,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:20,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1261597364, now seen corresponding path program 1 times [2022-10-15 17:44:20,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:20,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675717345] [2022-10-15 17:44:20,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:20,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:20,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:44:20,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:20,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675717345] [2022-10-15 17:44:20,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675717345] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:20,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:20,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:44:20,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791036934] [2022-10-15 17:44:20,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:20,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:44:20,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:20,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:44:20,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:44:20,754 INFO L87 Difference]: Start difference. First operand 21588 states and 30909 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 17:44:21,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:21,112 INFO L93 Difference]: Finished difference Result 45818 states and 68864 transitions. [2022-10-15 17:44:21,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:44:21,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2022-10-15 17:44:21,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:21,229 INFO L225 Difference]: With dead ends: 45818 [2022-10-15 17:44:21,230 INFO L226 Difference]: Without dead ends: 45818 [2022-10-15 17:44:21,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 17:44:21,231 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 1109 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:21,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 1459 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:44:21,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45818 states. [2022-10-15 17:44:22,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45818 to 34176. [2022-10-15 17:44:22,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34176 states, 34175 states have (on average 1.4794732991953181) internal successors, (50561), 34175 states have internal predecessors, (50561), 0 states have call successors, (0), 0 states 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 17:44:22,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34176 states to 34176 states and 50561 transitions. [2022-10-15 17:44:22,334 INFO L78 Accepts]: Start accepts. Automaton has 34176 states and 50561 transitions. Word has length 166 [2022-10-15 17:44:22,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:22,335 INFO L495 AbstractCegarLoop]: Abstraction has 34176 states and 50561 transitions. [2022-10-15 17:44:22,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 17:44:22,337 INFO L276 IsEmpty]: Start isEmpty. Operand 34176 states and 50561 transitions. [2022-10-15 17:44:22,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-15 17:44:22,366 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:22,367 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:22,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 17:44:22,367 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:22,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:22,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1744552769, now seen corresponding path program 1 times [2022-10-15 17:44:22,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:22,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429101682] [2022-10-15 17:44:22,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:22,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:22,702 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 17:44:22,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:22,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429101682] [2022-10-15 17:44:22,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429101682] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:22,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:22,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:44:22,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916520602] [2022-10-15 17:44:22,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:22,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:44:22,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:22,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:44:22,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:44:22,706 INFO L87 Difference]: Start difference. First operand 34176 states and 50561 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 17:44:23,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:23,072 INFO L93 Difference]: Finished difference Result 53182 states and 78254 transitions. [2022-10-15 17:44:23,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:44:23,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2022-10-15 17:44:23,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:23,205 INFO L225 Difference]: With dead ends: 53182 [2022-10-15 17:44:23,205 INFO L226 Difference]: Without dead ends: 53182 [2022-10-15 17:44:23,208 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 17:44:23,209 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 300 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:23,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 794 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:44:23,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53182 states. [2022-10-15 17:44:24,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53182 to 53180. [2022-10-15 17:44:24,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53180 states, 53179 states have (on average 1.4715019086481507) internal successors, (78253), 53179 states have internal predecessors, (78253), 0 states have call successors, (0), 0 states 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 17:44:24,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53180 states to 53180 states and 78253 transitions. [2022-10-15 17:44:24,567 INFO L78 Accepts]: Start accepts. Automaton has 53180 states and 78253 transitions. Word has length 166 [2022-10-15 17:44:24,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:24,568 INFO L495 AbstractCegarLoop]: Abstraction has 53180 states and 78253 transitions. [2022-10-15 17:44:24,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 17:44:24,569 INFO L276 IsEmpty]: Start isEmpty. Operand 53180 states and 78253 transitions. [2022-10-15 17:44:24,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-15 17:44:24,598 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:24,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:24,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 17:44:24,599 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:24,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:24,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1639419065, now seen corresponding path program 1 times [2022-10-15 17:44:24,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:24,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480720176] [2022-10-15 17:44:24,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:24,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:25,172 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 17:44:25,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:25,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480720176] [2022-10-15 17:44:25,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480720176] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:25,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:25,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 17:44:25,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583630027] [2022-10-15 17:44:25,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:25,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 17:44:25,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:25,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 17:44:25,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-15 17:44:25,175 INFO L87 Difference]: Start difference. First operand 53180 states and 78253 transitions. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 17:44:26,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:26,671 INFO L93 Difference]: Finished difference Result 152006 states and 224472 transitions. [2022-10-15 17:44:26,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 17:44:26,672 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2022-10-15 17:44:26,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:27,028 INFO L225 Difference]: With dead ends: 152006 [2022-10-15 17:44:27,028 INFO L226 Difference]: Without dead ends: 152006 [2022-10-15 17:44:27,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272 [2022-10-15 17:44:27,030 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 5738 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5738 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:27,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5738 Valid, 1355 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 17:44:27,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152006 states. [2022-10-15 17:44:29,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152006 to 76204. [2022-10-15 17:44:29,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76204 states, 76203 states have (on average 1.4489849480991561) internal successors, (110417), 76203 states have internal predecessors, (110417), 0 states have call successors, (0), 0 states 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 17:44:29,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76204 states to 76204 states and 110417 transitions. [2022-10-15 17:44:29,749 INFO L78 Accepts]: Start accepts. Automaton has 76204 states and 110417 transitions. Word has length 166 [2022-10-15 17:44:29,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:29,750 INFO L495 AbstractCegarLoop]: Abstraction has 76204 states and 110417 transitions. [2022-10-15 17:44:29,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 7 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 17:44:29,750 INFO L276 IsEmpty]: Start isEmpty. Operand 76204 states and 110417 transitions. [2022-10-15 17:44:29,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-15 17:44:29,781 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:29,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:29,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 17:44:29,782 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:29,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:29,783 INFO L85 PathProgramCache]: Analyzing trace with hash 34755477, now seen corresponding path program 1 times [2022-10-15 17:44:29,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:29,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642519781] [2022-10-15 17:44:29,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:29,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:30,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 17:44:30,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:30,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642519781] [2022-10-15 17:44:30,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642519781] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:30,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:30,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:44:30,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125524626] [2022-10-15 17:44:30,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:30,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:44:30,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:30,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:44:30,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:44:30,223 INFO L87 Difference]: Start difference. First operand 76204 states and 110417 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 17:44:30,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:30,447 INFO L93 Difference]: Finished difference Result 68427 states and 99125 transitions. [2022-10-15 17:44:30,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:44:30,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2022-10-15 17:44:30,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:30,967 INFO L225 Difference]: With dead ends: 68427 [2022-10-15 17:44:30,968 INFO L226 Difference]: Without dead ends: 68293 [2022-10-15 17:44:30,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:44:30,969 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 53 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1475 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:30,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1475 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:44:31,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68293 states. [2022-10-15 17:44:31,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68293 to 68293. [2022-10-15 17:44:32,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68293 states, 68292 states have (on average 1.4492180636092076) internal successors, (98970), 68292 states have internal predecessors, (98970), 0 states have call successors, (0), 0 states 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 17:44:32,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68293 states to 68293 states and 98970 transitions. [2022-10-15 17:44:32,233 INFO L78 Accepts]: Start accepts. Automaton has 68293 states and 98970 transitions. Word has length 166 [2022-10-15 17:44:32,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:32,233 INFO L495 AbstractCegarLoop]: Abstraction has 68293 states and 98970 transitions. [2022-10-15 17:44:32,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states 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 17:44:32,234 INFO L276 IsEmpty]: Start isEmpty. Operand 68293 states and 98970 transitions. [2022-10-15 17:44:32,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-10-15 17:44:32,268 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:32,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:32,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 17:44:32,269 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:32,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:32,270 INFO L85 PathProgramCache]: Analyzing trace with hash 506466000, now seen corresponding path program 1 times [2022-10-15 17:44:32,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:32,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126799170] [2022-10-15 17:44:32,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:32,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:32,422 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 17:44:32,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:32,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126799170] [2022-10-15 17:44:32,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126799170] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:32,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:32,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:44:32,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123626840] [2022-10-15 17:44:32,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:32,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:44:32,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:32,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:44:32,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:44:32,426 INFO L87 Difference]: Start difference. First operand 68293 states and 98970 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states 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 17:44:33,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:33,449 INFO L93 Difference]: Finished difference Result 109840 states and 160280 transitions. [2022-10-15 17:44:33,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:44:33,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 170 [2022-10-15 17:44:33,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:33,598 INFO L225 Difference]: With dead ends: 109840 [2022-10-15 17:44:33,599 INFO L226 Difference]: Without dead ends: 109840 [2022-10-15 17:44:33,599 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 17:44:33,599 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 291 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:33,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 1015 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:44:33,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109840 states. [2022-10-15 17:44:35,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109840 to 99256. [2022-10-15 17:44:35,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99256 states, 99255 states have (on average 1.480640773764546) internal successors, (146961), 99255 states have internal predecessors, (146961), 0 states have call successors, (0), 0 states 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 17:44:35,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99256 states to 99256 states and 146961 transitions. [2022-10-15 17:44:35,588 INFO L78 Accepts]: Start accepts. Automaton has 99256 states and 146961 transitions. Word has length 170 [2022-10-15 17:44:35,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:35,589 INFO L495 AbstractCegarLoop]: Abstraction has 99256 states and 146961 transitions. [2022-10-15 17:44:35,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states 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 17:44:35,589 INFO L276 IsEmpty]: Start isEmpty. Operand 99256 states and 146961 transitions. [2022-10-15 17:44:35,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-10-15 17:44:35,621 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:35,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:35,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 17:44:35,622 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:35,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:35,622 INFO L85 PathProgramCache]: Analyzing trace with hash 580410345, now seen corresponding path program 1 times [2022-10-15 17:44:35,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:35,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572561904] [2022-10-15 17:44:35,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:35,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:35,742 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 17:44:35,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:35,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572561904] [2022-10-15 17:44:35,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572561904] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:35,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:35,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 17:44:35,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052723698] [2022-10-15 17:44:35,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:35,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 17:44:35,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:35,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 17:44:35,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 17:44:35,746 INFO L87 Difference]: Start difference. First operand 99256 states and 146961 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states 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 17:44:36,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:36,753 INFO L93 Difference]: Finished difference Result 160481 states and 237991 transitions. [2022-10-15 17:44:36,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 17:44:36,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 170 [2022-10-15 17:44:36,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:36,988 INFO L225 Difference]: With dead ends: 160481 [2022-10-15 17:44:36,988 INFO L226 Difference]: Without dead ends: 160481 [2022-10-15 17:44:36,988 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 17:44:36,989 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 288 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:36,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 988 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:44:37,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160481 states. [2022-10-15 17:44:39,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160481 to 149839. [2022-10-15 17:44:39,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149839 states, 149838 states have (on average 1.4963627384241647) internal successors, (224212), 149838 states have internal predecessors, (224212), 0 states have call successors, (0), 0 states 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 17:44:40,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149839 states to 149839 states and 224212 transitions. [2022-10-15 17:44:40,180 INFO L78 Accepts]: Start accepts. Automaton has 149839 states and 224212 transitions. Word has length 170 [2022-10-15 17:44:40,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:40,180 INFO L495 AbstractCegarLoop]: Abstraction has 149839 states and 224212 transitions. [2022-10-15 17:44:40,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states 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 17:44:40,181 INFO L276 IsEmpty]: Start isEmpty. Operand 149839 states and 224212 transitions. [2022-10-15 17:44:40,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-10-15 17:44:40,206 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:40,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:40,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 17:44:40,207 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:40,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:40,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1460936628, now seen corresponding path program 1 times [2022-10-15 17:44:40,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:40,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004429707] [2022-10-15 17:44:40,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:40,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:40,648 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 17:44:40,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:40,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004429707] [2022-10-15 17:44:40,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004429707] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:40,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:40,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:44:40,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614287712] [2022-10-15 17:44:40,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:40,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:44:40,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:40,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:44:40,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:44:40,651 INFO L87 Difference]: Start difference. First operand 149839 states and 224212 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states 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 17:44:41,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:41,809 INFO L93 Difference]: Finished difference Result 120791 states and 180147 transitions. [2022-10-15 17:44:41,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:44:41,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2022-10-15 17:44:41,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:42,051 INFO L225 Difference]: With dead ends: 120791 [2022-10-15 17:44:42,052 INFO L226 Difference]: Without dead ends: 120474 [2022-10-15 17:44:42,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:44:42,053 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 45 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:42,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1450 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:44:42,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120474 states. [2022-10-15 17:44:43,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120474 to 120474. [2022-10-15 17:44:43,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120474 states, 120473 states have (on average 1.4923924862832336) internal successors, (179793), 120473 states have internal predecessors, (179793), 0 states have call successors, (0), 0 states 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 17:44:44,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120474 states to 120474 states and 179793 transitions. [2022-10-15 17:44:44,468 INFO L78 Accepts]: Start accepts. Automaton has 120474 states and 179793 transitions. Word has length 171 [2022-10-15 17:44:44,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:44,471 INFO L495 AbstractCegarLoop]: Abstraction has 120474 states and 179793 transitions. [2022-10-15 17:44:44,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states 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 17:44:44,471 INFO L276 IsEmpty]: Start isEmpty. Operand 120474 states and 179793 transitions. [2022-10-15 17:44:44,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-10-15 17:44:44,522 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:44,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:44,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-15 17:44:44,526 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:44,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:44,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1811794915, now seen corresponding path program 1 times [2022-10-15 17:44:44,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:44,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366694662] [2022-10-15 17:44:44,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:44,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:44,786 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 17:44:44,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:44,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366694662] [2022-10-15 17:44:44,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366694662] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:44,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:44,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:44:44,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868669162] [2022-10-15 17:44:44,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:44,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:44:44,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:44,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:44:44,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:44:44,789 INFO L87 Difference]: Start difference. First operand 120474 states and 179793 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 17:44:45,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:45,370 INFO L93 Difference]: Finished difference Result 120474 states and 178485 transitions. [2022-10-15 17:44:45,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 17:44:45,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-10-15 17:44:45,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:45,605 INFO L225 Difference]: With dead ends: 120474 [2022-10-15 17:44:45,606 INFO L226 Difference]: Without dead ends: 120474 [2022-10-15 17:44:45,606 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 17:44:45,607 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 1220 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:45,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 457 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 17:44:45,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120474 states. [2022-10-15 17:44:47,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120474 to 120474. [2022-10-15 17:44:47,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120474 states, 120473 states have (on average 1.4815352817643788) internal successors, (178485), 120473 states have internal predecessors, (178485), 0 states have call successors, (0), 0 states 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 17:44:48,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120474 states to 120474 states and 178485 transitions. [2022-10-15 17:44:48,051 INFO L78 Accepts]: Start accepts. Automaton has 120474 states and 178485 transitions. Word has length 176 [2022-10-15 17:44:48,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:48,052 INFO L495 AbstractCegarLoop]: Abstraction has 120474 states and 178485 transitions. [2022-10-15 17:44:48,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 17:44:48,052 INFO L276 IsEmpty]: Start isEmpty. Operand 120474 states and 178485 transitions. [2022-10-15 17:44:48,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-10-15 17:44:48,074 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:48,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:48,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-15 17:44:48,075 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:48,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:48,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1034070136, now seen corresponding path program 1 times [2022-10-15 17:44:48,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:48,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071052936] [2022-10-15 17:44:48,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:48,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:49,200 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 17:44:49,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:49,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071052936] [2022-10-15 17:44:49,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071052936] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:49,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:49,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 17:44:49,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037719136] [2022-10-15 17:44:49,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:49,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 17:44:49,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:49,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 17:44:49,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:44:49,204 INFO L87 Difference]: Start difference. First operand 120474 states and 178485 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 17:44:49,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 17:44:49,639 INFO L93 Difference]: Finished difference Result 111483 states and 165073 transitions. [2022-10-15 17:44:49,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 17:44:49,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-10-15 17:44:49,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 17:44:49,815 INFO L225 Difference]: With dead ends: 111483 [2022-10-15 17:44:49,816 INFO L226 Difference]: Without dead ends: 111483 [2022-10-15 17:44:49,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 17:44:49,817 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 1680 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 17:44:49,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 876 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 17:44:49,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111483 states. [2022-10-15 17:44:51,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111483 to 111441. [2022-10-15 17:44:52,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111441 states, 111440 states have (on average 1.4808237616654703) internal successors, (165023), 111440 states have internal predecessors, (165023), 0 states have call successors, (0), 0 states 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 17:44:52,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111441 states to 111441 states and 165023 transitions. [2022-10-15 17:44:52,342 INFO L78 Accepts]: Start accepts. Automaton has 111441 states and 165023 transitions. Word has length 176 [2022-10-15 17:44:52,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 17:44:52,342 INFO L495 AbstractCegarLoop]: Abstraction has 111441 states and 165023 transitions. [2022-10-15 17:44:52,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states 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 17:44:52,343 INFO L276 IsEmpty]: Start isEmpty. Operand 111441 states and 165023 transitions. [2022-10-15 17:44:52,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-15 17:44:52,357 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 17:44:52,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 17:44:52,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-15 17:44:52,358 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-15 17:44:52,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 17:44:52,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1116650265, now seen corresponding path program 1 times [2022-10-15 17:44:52,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 17:44:52,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876656548] [2022-10-15 17:44:52,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 17:44:52,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 17:44:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 17:44:52,721 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 17:44:52,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 17:44:52,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876656548] [2022-10-15 17:44:52,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876656548] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 17:44:52,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 17:44:52,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 17:44:52,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433678751] [2022-10-15 17:44:52,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 17:44:52,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 17:44:52,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 17:44:52,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 17:44:52,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 17:44:52,725 INFO L87 Difference]: Start difference. First operand 111441 states and 165023 transitions. Second operand has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)