/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:49:30,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:49:30,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:49:30,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 02:49:31,051 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 02:49:31,110 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:49:31,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:49:31,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:49:31,112 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:49:31,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:49:31,114 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:49:31,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:49:31,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:49:31,117 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:49:31,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:49:31,119 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:49:31,119 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:49:31,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:49:31,119 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:49:31,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:49:31,120 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:49:31,120 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:49:31,120 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:49:31,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:49:31,121 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:49:31,121 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:49:31,121 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:49:31,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:49:31,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:49:31,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:49:31,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:49:31,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:49:31,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:49:31,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:49:31,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:49:31,123 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:49:31,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:49:31,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:49:31,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:49:31,601 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:49:31,602 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:49:31,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c [2022-10-16 02:49:31,698 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25a04f931/199a75a000464c56a4e774564ee1a157/FLAG6f50736ff [2022-10-16 02:49:32,524 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:49:32,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c [2022-10-16 02:49:32,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25a04f931/199a75a000464c56a4e774564ee1a157/FLAG6f50736ff [2022-10-16 02:49:32,777 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25a04f931/199a75a000464c56a4e774564ee1a157 [2022-10-16 02:49:32,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:49:32,787 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:49:32,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:49:32,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:49:32,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:49:32,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:49:32" (1/1) ... [2022-10-16 02:49:32,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5174d40d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:32, skipping insertion in model container [2022-10-16 02:49:32,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:49:32" (1/1) ... [2022-10-16 02:49:32,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:49:32,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:49:33,102 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c[12747,12760] [2022-10-16 02:49:33,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:49:33,118 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:49:33,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c[12747,12760] [2022-10-16 02:49:33,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:49:33,216 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:49:33,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:33 WrapperNode [2022-10-16 02:49:33,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:49:33,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:49:33,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:49:33,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:49:33,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:33" (1/1) ... [2022-10-16 02:49:33,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:33" (1/1) ... [2022-10-16 02:49:33,289 INFO L138 Inliner]: procedures = 21, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 465 [2022-10-16 02:49:33,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:49:33,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:49:33,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:49:33,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:49:33,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:33" (1/1) ... [2022-10-16 02:49:33,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:33" (1/1) ... [2022-10-16 02:49:33,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:33" (1/1) ... [2022-10-16 02:49:33,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:33" (1/1) ... [2022-10-16 02:49:33,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:33" (1/1) ... [2022-10-16 02:49:33,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:33" (1/1) ... [2022-10-16 02:49:33,334 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:33" (1/1) ... [2022-10-16 02:49:33,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:33" (1/1) ... [2022-10-16 02:49:33,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:49:33,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:49:33,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:49:33,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:49:33,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:33" (1/1) ... [2022-10-16 02:49:33,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:49:33,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:49:33,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 02:49:33,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 02:49:33,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:49:33,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:49:33,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:49:33,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:49:33,619 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:49:33,625 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:49:34,524 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:49:34,543 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:49:34,544 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 02:49:34,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:49:34 BoogieIcfgContainer [2022-10-16 02:49:34,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:49:34,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:49:34,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:49:34,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:49:34,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:49:32" (1/3) ... [2022-10-16 02:49:34,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63524594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:49:34, skipping insertion in model container [2022-10-16 02:49:34,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:33" (2/3) ... [2022-10-16 02:49:34,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63524594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:49:34, skipping insertion in model container [2022-10-16 02:49:34,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:49:34" (3/3) ... [2022-10-16 02:49:34,563 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c [2022-10-16 02:49:34,591 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:49:34,592 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:49:34,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:49:34,709 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;@157b5af7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:49:34,710 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:49:34,718 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 135 states have (on average 1.7555555555555555) internal successors, (237), 137 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:34,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 02:49:34,744 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:34,745 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] [2022-10-16 02:49:34,747 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:34,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:34,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1257460140, now seen corresponding path program 1 times [2022-10-16 02:49:34,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:34,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763095175] [2022-10-16 02:49:34,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:34,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:35,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:35,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:35,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763095175] [2022-10-16 02:49:35,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763095175] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:35,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:35,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 02:49:35,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627919070] [2022-10-16 02:49:35,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:35,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 02:49:35,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:35,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 02:49:35,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:49:35,263 INFO L87 Difference]: Start difference. First operand has 138 states, 135 states have (on average 1.7555555555555555) internal successors, (237), 137 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:35,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:35,319 INFO L93 Difference]: Finished difference Result 138 states and 234 transitions. [2022-10-16 02:49:35,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 02:49:35,324 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-10-16 02:49:35,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:35,343 INFO L225 Difference]: With dead ends: 138 [2022-10-16 02:49:35,343 INFO L226 Difference]: Without dead ends: 136 [2022-10-16 02:49:35,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:49:35,352 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:35,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:35,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-10-16 02:49:35,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2022-10-16 02:49:35,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 134 states have (on average 1.7313432835820894) internal successors, (232), 135 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:35,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 232 transitions. [2022-10-16 02:49:35,410 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 232 transitions. Word has length 22 [2022-10-16 02:49:35,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:35,411 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 232 transitions. [2022-10-16 02:49:35,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:35,412 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 232 transitions. [2022-10-16 02:49:35,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 02:49:35,413 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:35,413 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] [2022-10-16 02:49:35,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:49:35,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:35,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:35,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1255960019, now seen corresponding path program 1 times [2022-10-16 02:49:35,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:35,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757573761] [2022-10-16 02:49:35,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:35,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:35,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:35,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:35,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757573761] [2022-10-16 02:49:35,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757573761] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:35,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:35,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:49:35,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48109689] [2022-10-16 02:49:35,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:35,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:49:35,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:35,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:49:35,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:35,683 INFO L87 Difference]: Start difference. First operand 136 states and 232 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:35,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:35,841 INFO L93 Difference]: Finished difference Result 218 states and 367 transitions. [2022-10-16 02:49:35,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:49:35,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2022-10-16 02:49:35,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:35,849 INFO L225 Difference]: With dead ends: 218 [2022-10-16 02:49:35,849 INFO L226 Difference]: Without dead ends: 215 [2022-10-16 02:49:35,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:49:35,854 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 135 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:35,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 882 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:35,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-10-16 02:49:35,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 137. [2022-10-16 02:49:35,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 135 states have (on average 1.548148148148148) internal successors, (209), 136 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:35,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 209 transitions. [2022-10-16 02:49:35,889 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 209 transitions. Word has length 22 [2022-10-16 02:49:35,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:35,889 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 209 transitions. [2022-10-16 02:49:35,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:35,890 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 209 transitions. [2022-10-16 02:49:35,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-16 02:49:35,893 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:35,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:49:35,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:49:35,894 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:35,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:35,894 INFO L85 PathProgramCache]: Analyzing trace with hash 141893846, now seen corresponding path program 1 times [2022-10-16 02:49:35,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:35,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952799739] [2022-10-16 02:49:35,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:35,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:36,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:36,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:36,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952799739] [2022-10-16 02:49:36,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952799739] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:36,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:36,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:49:36,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657705423] [2022-10-16 02:49:36,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:36,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:49:36,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:36,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:49:36,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:36,081 INFO L87 Difference]: Start difference. First operand 137 states and 209 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:36,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:36,137 INFO L93 Difference]: Finished difference Result 209 states and 322 transitions. [2022-10-16 02:49:36,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:49:36,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-10-16 02:49:36,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:36,144 INFO L225 Difference]: With dead ends: 209 [2022-10-16 02:49:36,144 INFO L226 Difference]: Without dead ends: 209 [2022-10-16 02:49:36,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:36,154 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 110 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:36,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 378 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:36,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-10-16 02:49:36,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 204. [2022-10-16 02:49:36,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 202 states have (on average 1.5792079207920793) internal successors, (319), 203 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:36,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 319 transitions. [2022-10-16 02:49:36,191 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 319 transitions. Word has length 60 [2022-10-16 02:49:36,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:36,191 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 319 transitions. [2022-10-16 02:49:36,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:36,195 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 319 transitions. [2022-10-16 02:49:36,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-16 02:49:36,201 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:36,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:49:36,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:49:36,204 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:36,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:36,205 INFO L85 PathProgramCache]: Analyzing trace with hash -653639893, now seen corresponding path program 1 times [2022-10-16 02:49:36,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:36,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492406460] [2022-10-16 02:49:36,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:36,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:36,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:36,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:36,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492406460] [2022-10-16 02:49:36,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492406460] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:36,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:36,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:49:36,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849019785] [2022-10-16 02:49:36,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:36,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:49:36,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:36,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:49:36,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:36,411 INFO L87 Difference]: Start difference. First operand 204 states and 319 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:36,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:36,431 INFO L93 Difference]: Finished difference Result 337 states and 535 transitions. [2022-10-16 02:49:36,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:49:36,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2022-10-16 02:49:36,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:36,435 INFO L225 Difference]: With dead ends: 337 [2022-10-16 02:49:36,435 INFO L226 Difference]: Without dead ends: 337 [2022-10-16 02:49:36,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:36,437 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 112 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:36,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 386 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:36,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-10-16 02:49:36,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 332. [2022-10-16 02:49:36,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 330 states have (on average 1.612121212121212) internal successors, (532), 331 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:36,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 532 transitions. [2022-10-16 02:49:36,457 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 532 transitions. Word has length 62 [2022-10-16 02:49:36,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:36,458 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 532 transitions. [2022-10-16 02:49:36,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:36,458 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 532 transitions. [2022-10-16 02:49:36,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-16 02:49:36,462 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:36,462 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] [2022-10-16 02:49:36,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:49:36,463 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:36,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:36,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1628052192, now seen corresponding path program 1 times [2022-10-16 02:49:36,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:36,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740281674] [2022-10-16 02:49:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:36,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:36,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:36,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:36,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740281674] [2022-10-16 02:49:36,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740281674] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:36,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:36,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:49:36,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579447669] [2022-10-16 02:49:36,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:36,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:49:36,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:36,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:49:36,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:36,571 INFO L87 Difference]: Start difference. First operand 332 states and 532 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:36,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:36,595 INFO L93 Difference]: Finished difference Result 577 states and 931 transitions. [2022-10-16 02:49:36,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:49:36,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-10-16 02:49:36,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:36,600 INFO L225 Difference]: With dead ends: 577 [2022-10-16 02:49:36,600 INFO L226 Difference]: Without dead ends: 577 [2022-10-16 02:49:36,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:36,602 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 106 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:36,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 387 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:36,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-10-16 02:49:36,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 572. [2022-10-16 02:49:36,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 570 states have (on average 1.6280701754385964) internal successors, (928), 571 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:36,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 928 transitions. [2022-10-16 02:49:36,628 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 928 transitions. Word has length 64 [2022-10-16 02:49:36,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:36,629 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 928 transitions. [2022-10-16 02:49:36,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:36,629 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 928 transitions. [2022-10-16 02:49:36,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-16 02:49:36,632 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:36,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:49:36,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 02:49:36,633 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:36,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:36,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1698900981, now seen corresponding path program 1 times [2022-10-16 02:49:36,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:36,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710891054] [2022-10-16 02:49:36,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:36,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:36,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:36,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:36,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:36,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710891054] [2022-10-16 02:49:36,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710891054] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:36,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:36,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:49:36,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954977015] [2022-10-16 02:49:36,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:36,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:49:36,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:36,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:49:36,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:36,864 INFO L87 Difference]: Start difference. First operand 572 states and 928 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:37,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:37,049 INFO L93 Difference]: Finished difference Result 1949 states and 3209 transitions. [2022-10-16 02:49:37,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:49:37,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-10-16 02:49:37,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:37,063 INFO L225 Difference]: With dead ends: 1949 [2022-10-16 02:49:37,064 INFO L226 Difference]: Without dead ends: 1949 [2022-10-16 02:49:37,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:49:37,066 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 884 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:37,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 1379 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:37,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2022-10-16 02:49:37,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1021. [2022-10-16 02:49:37,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 1019 states have (on average 1.6418056918547597) internal successors, (1673), 1020 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:37,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1673 transitions. [2022-10-16 02:49:37,121 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1673 transitions. Word has length 66 [2022-10-16 02:49:37,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:37,122 INFO L495 AbstractCegarLoop]: Abstraction has 1021 states and 1673 transitions. [2022-10-16 02:49:37,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:37,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1673 transitions. [2022-10-16 02:49:37,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-16 02:49:37,124 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:37,124 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] [2022-10-16 02:49:37,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 02:49:37,125 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:37,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:37,126 INFO L85 PathProgramCache]: Analyzing trace with hash -796509765, now seen corresponding path program 1 times [2022-10-16 02:49:37,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:37,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128792551] [2022-10-16 02:49:37,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:37,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:37,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:37,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:37,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128792551] [2022-10-16 02:49:37,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128792551] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:37,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:37,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:49:37,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855515787] [2022-10-16 02:49:37,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:37,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:49:37,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:37,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:49:37,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:49:37,236 INFO L87 Difference]: Start difference. First operand 1021 states and 1673 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:37,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:37,317 INFO L93 Difference]: Finished difference Result 2013 states and 3331 transitions. [2022-10-16 02:49:37,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:49:37,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-10-16 02:49:37,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:37,331 INFO L225 Difference]: With dead ends: 2013 [2022-10-16 02:49:37,333 INFO L226 Difference]: Without dead ends: 2013 [2022-10-16 02:49:37,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:37,340 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 394 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:37,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 693 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:37,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2022-10-16 02:49:37,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1505. [2022-10-16 02:49:37,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1503 states have (on average 1.6487025948103793) internal successors, (2478), 1504 states have internal predecessors, (2478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2478 transitions. [2022-10-16 02:49:37,402 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2478 transitions. Word has length 67 [2022-10-16 02:49:37,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:37,403 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 2478 transitions. [2022-10-16 02:49:37,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:37,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2478 transitions. [2022-10-16 02:49:37,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-16 02:49:37,407 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:37,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:49:37,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 02:49:37,408 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:37,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:37,413 INFO L85 PathProgramCache]: Analyzing trace with hash 2022785868, now seen corresponding path program 1 times [2022-10-16 02:49:37,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:37,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551997162] [2022-10-16 02:49:37,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:37,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:37,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:37,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:37,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551997162] [2022-10-16 02:49:37,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551997162] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:37,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:37,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:49:37,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675074822] [2022-10-16 02:49:37,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:37,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:49:37,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:37,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:49:37,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:37,548 INFO L87 Difference]: Start difference. First operand 1505 states and 2478 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:37,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:37,588 INFO L93 Difference]: Finished difference Result 2284 states and 3764 transitions. [2022-10-16 02:49:37,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:49:37,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-10-16 02:49:37,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:37,602 INFO L225 Difference]: With dead ends: 2284 [2022-10-16 02:49:37,602 INFO L226 Difference]: Without dead ends: 2284 [2022-10-16 02:49:37,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:37,604 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 119 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:37,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 476 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:37,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2284 states. [2022-10-16 02:49:37,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2284 to 2279. [2022-10-16 02:49:37,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2277 states have (on average 1.6517347386912604) internal successors, (3761), 2278 states have internal predecessors, (3761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:37,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 3761 transitions. [2022-10-16 02:49:37,678 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 3761 transitions. Word has length 68 [2022-10-16 02:49:37,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:37,679 INFO L495 AbstractCegarLoop]: Abstraction has 2279 states and 3761 transitions. [2022-10-16 02:49:37,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:37,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 3761 transitions. [2022-10-16 02:49:37,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-16 02:49:37,680 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:37,681 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] [2022-10-16 02:49:37,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 02:49:37,682 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:37,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:37,686 INFO L85 PathProgramCache]: Analyzing trace with hash -675827220, now seen corresponding path program 1 times [2022-10-16 02:49:37,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:37,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345468142] [2022-10-16 02:49:37,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:37,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:37,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:37,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:37,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345468142] [2022-10-16 02:49:37,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345468142] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:37,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:37,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:49:37,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605818548] [2022-10-16 02:49:37,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:37,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:49:37,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:37,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:49:37,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:49:37,812 INFO L87 Difference]: Start difference. First operand 2279 states and 3761 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:37,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:37,923 INFO L93 Difference]: Finished difference Result 4469 states and 7383 transitions. [2022-10-16 02:49:37,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:49:37,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-10-16 02:49:37,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:37,950 INFO L225 Difference]: With dead ends: 4469 [2022-10-16 02:49:37,951 INFO L226 Difference]: Without dead ends: 4469 [2022-10-16 02:49:37,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:37,954 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 393 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:37,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 638 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:37,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4469 states. [2022-10-16 02:49:38,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4469 to 3352. [2022-10-16 02:49:38,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 3350 states have (on average 1.6471641791044775) internal successors, (5518), 3351 states have internal predecessors, (5518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:38,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 5518 transitions. [2022-10-16 02:49:38,088 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 5518 transitions. Word has length 68 [2022-10-16 02:49:38,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:38,089 INFO L495 AbstractCegarLoop]: Abstraction has 3352 states and 5518 transitions. [2022-10-16 02:49:38,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:38,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 5518 transitions. [2022-10-16 02:49:38,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-16 02:49:38,097 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:38,097 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] [2022-10-16 02:49:38,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 02:49:38,101 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:38,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:38,107 INFO L85 PathProgramCache]: Analyzing trace with hash -446846068, now seen corresponding path program 1 times [2022-10-16 02:49:38,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:38,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655938925] [2022-10-16 02:49:38,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:38,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:38,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:38,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:38,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655938925] [2022-10-16 02:49:38,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655938925] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:38,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:38,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:49:38,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305903234] [2022-10-16 02:49:38,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:38,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:49:38,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:38,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:49:38,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:38,276 INFO L87 Difference]: Start difference. First operand 3352 states and 5518 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:38,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:38,320 INFO L93 Difference]: Finished difference Result 4783 states and 7826 transitions. [2022-10-16 02:49:38,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:49:38,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-10-16 02:49:38,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:38,350 INFO L225 Difference]: With dead ends: 4783 [2022-10-16 02:49:38,351 INFO L226 Difference]: Without dead ends: 4783 [2022-10-16 02:49:38,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:38,353 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 107 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:38,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 436 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:38,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4783 states. [2022-10-16 02:49:38,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4783 to 4778. [2022-10-16 02:49:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4778 states, 4776 states have (on average 1.6379815745393635) internal successors, (7823), 4777 states have internal predecessors, (7823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:38,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4778 states to 4778 states and 7823 transitions. [2022-10-16 02:49:38,495 INFO L78 Accepts]: Start accepts. Automaton has 4778 states and 7823 transitions. Word has length 68 [2022-10-16 02:49:38,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:38,496 INFO L495 AbstractCegarLoop]: Abstraction has 4778 states and 7823 transitions. [2022-10-16 02:49:38,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:38,496 INFO L276 IsEmpty]: Start isEmpty. Operand 4778 states and 7823 transitions. [2022-10-16 02:49:38,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-16 02:49:38,497 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:38,497 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] [2022-10-16 02:49:38,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 02:49:38,498 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:38,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:38,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1835740012, now seen corresponding path program 1 times [2022-10-16 02:49:38,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:38,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524591959] [2022-10-16 02:49:38,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:38,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:38,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:38,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:38,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524591959] [2022-10-16 02:49:38,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524591959] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:38,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:38,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:49:38,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996582313] [2022-10-16 02:49:38,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:38,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:49:38,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:38,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:49:38,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:38,615 INFO L87 Difference]: Start difference. First operand 4778 states and 7823 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:38,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:38,677 INFO L93 Difference]: Finished difference Result 7079 states and 11515 transitions. [2022-10-16 02:49:38,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:49:38,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-10-16 02:49:38,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:38,744 INFO L225 Difference]: With dead ends: 7079 [2022-10-16 02:49:38,744 INFO L226 Difference]: Without dead ends: 7079 [2022-10-16 02:49:38,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:38,747 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 113 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:38,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 467 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:38,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7079 states. [2022-10-16 02:49:38,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7079 to 7074. [2022-10-16 02:49:39,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7074 states, 7072 states have (on average 1.6278280542986425) internal successors, (11512), 7073 states have internal predecessors, (11512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:39,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7074 states to 7074 states and 11512 transitions. [2022-10-16 02:49:39,042 INFO L78 Accepts]: Start accepts. Automaton has 7074 states and 11512 transitions. Word has length 68 [2022-10-16 02:49:39,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:39,043 INFO L495 AbstractCegarLoop]: Abstraction has 7074 states and 11512 transitions. [2022-10-16 02:49:39,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:39,043 INFO L276 IsEmpty]: Start isEmpty. Operand 7074 states and 11512 transitions. [2022-10-16 02:49:39,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-16 02:49:39,049 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:39,050 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] [2022-10-16 02:49:39,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 02:49:39,051 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:39,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:39,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1060631278, now seen corresponding path program 1 times [2022-10-16 02:49:39,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:39,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941109338] [2022-10-16 02:49:39,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:39,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:39,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:39,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:39,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941109338] [2022-10-16 02:49:39,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941109338] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:39,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:39,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:49:39,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274453046] [2022-10-16 02:49:39,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:39,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:49:39,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:39,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:49:39,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:49:39,184 INFO L87 Difference]: Start difference. First operand 7074 states and 11512 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:39,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:39,372 INFO L93 Difference]: Finished difference Result 15196 states and 24667 transitions. [2022-10-16 02:49:39,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:49:39,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-10-16 02:49:39,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:39,415 INFO L225 Difference]: With dead ends: 15196 [2022-10-16 02:49:39,416 INFO L226 Difference]: Without dead ends: 15196 [2022-10-16 02:49:39,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:39,418 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 391 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:39,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 682 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:39,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15196 states. [2022-10-16 02:49:39,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15196 to 11089. [2022-10-16 02:49:39,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11089 states, 11087 states have (on average 1.6183818886984758) internal successors, (17943), 11088 states have internal predecessors, (17943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:39,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11089 states to 11089 states and 17943 transitions. [2022-10-16 02:49:39,999 INFO L78 Accepts]: Start accepts. Automaton has 11089 states and 17943 transitions. Word has length 69 [2022-10-16 02:49:39,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:39,999 INFO L495 AbstractCegarLoop]: Abstraction has 11089 states and 17943 transitions. [2022-10-16 02:49:40,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:40,000 INFO L276 IsEmpty]: Start isEmpty. Operand 11089 states and 17943 transitions. [2022-10-16 02:49:40,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 02:49:40,001 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:40,001 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] [2022-10-16 02:49:40,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 02:49:40,002 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:40,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:40,003 INFO L85 PathProgramCache]: Analyzing trace with hash 808037418, now seen corresponding path program 1 times [2022-10-16 02:49:40,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:40,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453314052] [2022-10-16 02:49:40,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:40,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:40,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:40,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:40,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453314052] [2022-10-16 02:49:40,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453314052] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:40,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:40,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:49:40,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789351040] [2022-10-16 02:49:40,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:40,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:49:40,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:40,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:49:40,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:40,273 INFO L87 Difference]: Start difference. First operand 11089 states and 17943 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:40,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:40,414 INFO L93 Difference]: Finished difference Result 11094 states and 17821 transitions. [2022-10-16 02:49:40,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:49:40,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2022-10-16 02:49:40,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:40,442 INFO L225 Difference]: With dead ends: 11094 [2022-10-16 02:49:40,442 INFO L226 Difference]: Without dead ends: 11094 [2022-10-16 02:49:40,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:49:40,443 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 183 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:40,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 727 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:40,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2022-10-16 02:49:40,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 11089. [2022-10-16 02:49:40,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11089 states, 11087 states have (on average 1.6071074231081446) internal successors, (17818), 11088 states have internal predecessors, (17818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:40,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11089 states to 11089 states and 17818 transitions. [2022-10-16 02:49:40,731 INFO L78 Accepts]: Start accepts. Automaton has 11089 states and 17818 transitions. Word has length 71 [2022-10-16 02:49:40,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:40,731 INFO L495 AbstractCegarLoop]: Abstraction has 11089 states and 17818 transitions. [2022-10-16 02:49:40,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:40,732 INFO L276 IsEmpty]: Start isEmpty. Operand 11089 states and 17818 transitions. [2022-10-16 02:49:40,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 02:49:40,733 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:40,734 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] [2022-10-16 02:49:40,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 02:49:40,740 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:40,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:40,741 INFO L85 PathProgramCache]: Analyzing trace with hash 653988143, now seen corresponding path program 1 times [2022-10-16 02:49:40,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:40,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474090093] [2022-10-16 02:49:40,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:40,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:41,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:41,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:41,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474090093] [2022-10-16 02:49:41,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474090093] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:41,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:41,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:49:41,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134028263] [2022-10-16 02:49:41,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:41,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:49:41,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:41,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:49:41,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:41,077 INFO L87 Difference]: Start difference. First operand 11089 states and 17818 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:41,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:41,240 INFO L93 Difference]: Finished difference Result 20750 states and 33078 transitions. [2022-10-16 02:49:41,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:49:41,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-10-16 02:49:41,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:41,348 INFO L225 Difference]: With dead ends: 20750 [2022-10-16 02:49:41,348 INFO L226 Difference]: Without dead ends: 20750 [2022-10-16 02:49:41,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:49:41,349 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 389 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:41,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 559 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:41,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20750 states. [2022-10-16 02:49:41,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20750 to 20745. [2022-10-16 02:49:41,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20745 states, 20743 states have (on average 1.594513811888348) internal successors, (33075), 20744 states have internal predecessors, (33075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:41,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20745 states to 20745 states and 33075 transitions. [2022-10-16 02:49:41,877 INFO L78 Accepts]: Start accepts. Automaton has 20745 states and 33075 transitions. Word has length 74 [2022-10-16 02:49:41,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:41,877 INFO L495 AbstractCegarLoop]: Abstraction has 20745 states and 33075 transitions. [2022-10-16 02:49:41,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:41,878 INFO L276 IsEmpty]: Start isEmpty. Operand 20745 states and 33075 transitions. [2022-10-16 02:49:41,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 02:49:41,879 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:41,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:49:41,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 02:49:41,879 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:41,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:41,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1629779693, now seen corresponding path program 1 times [2022-10-16 02:49:41,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:41,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347534147] [2022-10-16 02:49:41,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:41,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:42,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:42,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:42,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347534147] [2022-10-16 02:49:42,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347534147] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:42,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:42,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:49:42,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685005394] [2022-10-16 02:49:42,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:42,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:49:42,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:42,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:49:42,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:42,301 INFO L87 Difference]: Start difference. First operand 20745 states and 33075 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:42,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:42,509 INFO L93 Difference]: Finished difference Result 40557 states and 63513 transitions. [2022-10-16 02:49:42,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 02:49:42,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-10-16 02:49:42,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:42,627 INFO L225 Difference]: With dead ends: 40557 [2022-10-16 02:49:42,628 INFO L226 Difference]: Without dead ends: 40557 [2022-10-16 02:49:42,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:49:42,629 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 350 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:42,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 899 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:42,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40557 states. [2022-10-16 02:49:43,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40557 to 21831. [2022-10-16 02:49:43,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21831 states, 21829 states have (on average 1.5645242567227082) internal successors, (34152), 21830 states have internal predecessors, (34152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:43,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21831 states to 21831 states and 34152 transitions. [2022-10-16 02:49:43,349 INFO L78 Accepts]: Start accepts. Automaton has 21831 states and 34152 transitions. Word has length 75 [2022-10-16 02:49:43,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:43,350 INFO L495 AbstractCegarLoop]: Abstraction has 21831 states and 34152 transitions. [2022-10-16 02:49:43,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:43,351 INFO L276 IsEmpty]: Start isEmpty. Operand 21831 states and 34152 transitions. [2022-10-16 02:49:43,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 02:49:43,352 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:43,352 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] [2022-10-16 02:49:43,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 02:49:43,353 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:43,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:43,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1843494398, now seen corresponding path program 1 times [2022-10-16 02:49:43,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:43,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078644983] [2022-10-16 02:49:43,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:43,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:43,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:43,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:43,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078644983] [2022-10-16 02:49:43,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078644983] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:49:43,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117941464] [2022-10-16 02:49:43,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:43,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:49:43,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:49:43,676 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:49:43,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 02:49:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:43,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 02:49:43,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:49:44,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 02:49:44,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:49:44,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117941464] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:44,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:49:44,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 02:49:44,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626949903] [2022-10-16 02:49:44,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:44,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:49:44,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:44,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:49:44,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:44,007 INFO L87 Difference]: Start difference. First operand 21831 states and 34152 transitions. Second operand has 3 states, 2 states have (on average 39.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:44,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:44,124 INFO L93 Difference]: Finished difference Result 21830 states and 34151 transitions. [2022-10-16 02:49:44,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:49:44,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 39.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-10-16 02:49:44,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:44,202 INFO L225 Difference]: With dead ends: 21830 [2022-10-16 02:49:44,202 INFO L226 Difference]: Without dead ends: 21828 [2022-10-16 02:49:44,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:44,203 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 130 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:44,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 207 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:44,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21828 states. [2022-10-16 02:49:44,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21828 to 21828. [2022-10-16 02:49:44,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21828 states, 21827 states have (on average 1.545379575754799) internal successors, (33731), 21827 states have internal predecessors, (33731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:44,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21828 states to 21828 states and 33731 transitions. [2022-10-16 02:49:44,850 INFO L78 Accepts]: Start accepts. Automaton has 21828 states and 33731 transitions. Word has length 78 [2022-10-16 02:49:44,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:44,851 INFO L495 AbstractCegarLoop]: Abstraction has 21828 states and 33731 transitions. [2022-10-16 02:49:44,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 39.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:44,852 INFO L276 IsEmpty]: Start isEmpty. Operand 21828 states and 33731 transitions. [2022-10-16 02:49:44,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 02:49:44,855 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:44,856 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:49:44,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 02:49:45,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 02:49:45,070 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:45,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:45,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1037650854, now seen corresponding path program 1 times [2022-10-16 02:49:45,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:45,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924948506] [2022-10-16 02:49:45,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:45,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:45,303 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:49:45,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:45,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924948506] [2022-10-16 02:49:45,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924948506] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:45,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:45,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:49:45,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674568967] [2022-10-16 02:49:45,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:45,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:49:45,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:45,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:49:45,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:45,306 INFO L87 Difference]: Start difference. First operand 21828 states and 33731 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:45,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:45,837 INFO L93 Difference]: Finished difference Result 43014 states and 66442 transitions. [2022-10-16 02:49:45,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:49:45,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 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 101 [2022-10-16 02:49:45,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:45,946 INFO L225 Difference]: With dead ends: 43014 [2022-10-16 02:49:45,946 INFO L226 Difference]: Without dead ends: 43014 [2022-10-16 02:49:45,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:49:45,949 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 489 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:45,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 835 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:45,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43014 states. [2022-10-16 02:49:46,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43014 to 33572. [2022-10-16 02:49:46,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33572 states, 33571 states have (on average 1.5427303327276518) internal successors, (51791), 33571 states have internal predecessors, (51791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:46,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33572 states to 33572 states and 51791 transitions. [2022-10-16 02:49:46,828 INFO L78 Accepts]: Start accepts. Automaton has 33572 states and 51791 transitions. Word has length 101 [2022-10-16 02:49:46,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:46,829 INFO L495 AbstractCegarLoop]: Abstraction has 33572 states and 51791 transitions. [2022-10-16 02:49:46,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:46,829 INFO L276 IsEmpty]: Start isEmpty. Operand 33572 states and 51791 transitions. [2022-10-16 02:49:46,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 02:49:46,832 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:46,833 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:49:46,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 02:49:46,833 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:46,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:46,834 INFO L85 PathProgramCache]: Analyzing trace with hash 787684506, now seen corresponding path program 1 times [2022-10-16 02:49:46,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:46,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736169120] [2022-10-16 02:49:46,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:46,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:47,003 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 02:49:47,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:47,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736169120] [2022-10-16 02:49:47,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736169120] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:47,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:47,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:49:47,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052345404] [2022-10-16 02:49:47,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:47,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:49:47,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:47,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:49:47,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:47,007 INFO L87 Difference]: Start difference. First operand 33572 states and 51791 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:47,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:47,508 INFO L93 Difference]: Finished difference Result 49798 states and 77030 transitions. [2022-10-16 02:49:47,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:49:47,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-10-16 02:49:47,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:47,631 INFO L225 Difference]: With dead ends: 49798 [2022-10-16 02:49:47,631 INFO L226 Difference]: Without dead ends: 49798 [2022-10-16 02:49:47,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:49:47,633 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 492 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:47,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 948 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:47,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49798 states. [2022-10-16 02:49:48,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49798 to 45552. [2022-10-16 02:49:48,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45552 states, 45551 states have (on average 1.5440056200742025) internal successors, (70331), 45551 states have internal predecessors, (70331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:49,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45552 states to 45552 states and 70331 transitions. [2022-10-16 02:49:49,007 INFO L78 Accepts]: Start accepts. Automaton has 45552 states and 70331 transitions. Word has length 101 [2022-10-16 02:49:49,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:49,008 INFO L495 AbstractCegarLoop]: Abstraction has 45552 states and 70331 transitions. [2022-10-16 02:49:49,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:49,008 INFO L276 IsEmpty]: Start isEmpty. Operand 45552 states and 70331 transitions. [2022-10-16 02:49:49,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 02:49:49,011 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:49,011 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:49:49,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 02:49:49,012 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:49,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:49,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1224696710, now seen corresponding path program 1 times [2022-10-16 02:49:49,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:49,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688364989] [2022-10-16 02:49:49,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:49,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:49,202 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 02:49:49,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:49,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688364989] [2022-10-16 02:49:49,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688364989] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:49,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:49,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:49:49,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127788599] [2022-10-16 02:49:49,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:49,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:49:49,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:49,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:49:49,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:49:49,205 INFO L87 Difference]: Start difference. First operand 45552 states and 70331 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:49,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:49,488 INFO L93 Difference]: Finished difference Result 53934 states and 83438 transitions. [2022-10-16 02:49:49,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:49:49,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 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 101 [2022-10-16 02:49:49,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:49,621 INFO L225 Difference]: With dead ends: 53934 [2022-10-16 02:49:49,622 INFO L226 Difference]: Without dead ends: 53934 [2022-10-16 02:49:49,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:49:49,623 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 485 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:49,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 977 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:49:49,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53934 states. [2022-10-16 02:49:50,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53934 to 52232. [2022-10-16 02:49:50,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52232 states, 52231 states have (on average 1.5456529647144417) internal successors, (80731), 52231 states have internal predecessors, (80731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:50,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52232 states to 52232 states and 80731 transitions. [2022-10-16 02:49:50,911 INFO L78 Accepts]: Start accepts. Automaton has 52232 states and 80731 transitions. Word has length 101 [2022-10-16 02:49:50,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:50,911 INFO L495 AbstractCegarLoop]: Abstraction has 52232 states and 80731 transitions. [2022-10-16 02:49:50,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:50,912 INFO L276 IsEmpty]: Start isEmpty. Operand 52232 states and 80731 transitions. [2022-10-16 02:49:50,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 02:49:50,917 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:50,917 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:49:50,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 02:49:50,918 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:50,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:50,919 INFO L85 PathProgramCache]: Analyzing trace with hash 269729270, now seen corresponding path program 1 times [2022-10-16 02:49:50,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:50,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175833656] [2022-10-16 02:49:50,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:50,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:51,064 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:49:51,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:51,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175833656] [2022-10-16 02:49:51,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175833656] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:51,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:51,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:49:51,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870053730] [2022-10-16 02:49:51,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:51,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:49:51,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:51,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:49:51,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:49:51,068 INFO L87 Difference]: Start difference. First operand 52232 states and 80731 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:51,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:51,867 INFO L93 Difference]: Finished difference Result 67849 states and 104919 transitions. [2022-10-16 02:49:51,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:49:51,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 102 [2022-10-16 02:49:51,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:52,092 INFO L225 Difference]: With dead ends: 67849 [2022-10-16 02:49:52,093 INFO L226 Difference]: Without dead ends: 67849 [2022-10-16 02:49:52,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:49:52,094 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 216 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:52,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 632 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:52,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67849 states. [2022-10-16 02:49:53,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67849 to 66149. [2022-10-16 02:49:53,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66149 states, 66148 states have (on average 1.5457005502811876) internal successors, (102245), 66148 states have internal predecessors, (102245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:53,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66149 states to 66149 states and 102245 transitions. [2022-10-16 02:49:53,609 INFO L78 Accepts]: Start accepts. Automaton has 66149 states and 102245 transitions. Word has length 102 [2022-10-16 02:49:53,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:53,611 INFO L495 AbstractCegarLoop]: Abstraction has 66149 states and 102245 transitions. [2022-10-16 02:49:53,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:53,622 INFO L276 IsEmpty]: Start isEmpty. Operand 66149 states and 102245 transitions. [2022-10-16 02:49:53,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 02:49:53,627 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:53,628 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:49:53,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 02:49:53,628 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:53,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:53,629 INFO L85 PathProgramCache]: Analyzing trace with hash 692431096, now seen corresponding path program 1 times [2022-10-16 02:49:53,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:53,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644824220] [2022-10-16 02:49:53,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:53,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:49:53,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:53,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644824220] [2022-10-16 02:49:53,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644824220] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:53,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:53,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:49:53,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975206565] [2022-10-16 02:49:53,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:53,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:49:53,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:53,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:49:53,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:53,762 INFO L87 Difference]: Start difference. First operand 66149 states and 102245 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:54,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:54,099 INFO L93 Difference]: Finished difference Result 111837 states and 172641 transitions. [2022-10-16 02:49:54,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:49:54,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 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 102 [2022-10-16 02:49:54,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:54,313 INFO L225 Difference]: With dead ends: 111837 [2022-10-16 02:49:54,313 INFO L226 Difference]: Without dead ends: 111837 [2022-10-16 02:49:54,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:54,314 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 92 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:54,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 373 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:54,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111837 states. [2022-10-16 02:49:56,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111837 to 111559. [2022-10-16 02:49:56,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111559 states, 111558 states have (on average 1.5450617615948654) internal successors, (172364), 111558 states have internal predecessors, (172364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:56,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111559 states to 111559 states and 172364 transitions. [2022-10-16 02:49:56,921 INFO L78 Accepts]: Start accepts. Automaton has 111559 states and 172364 transitions. Word has length 102 [2022-10-16 02:49:56,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:49:56,922 INFO L495 AbstractCegarLoop]: Abstraction has 111559 states and 172364 transitions. [2022-10-16 02:49:56,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:56,922 INFO L276 IsEmpty]: Start isEmpty. Operand 111559 states and 172364 transitions. [2022-10-16 02:49:56,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 02:49:56,924 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:49:56,925 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:49:56,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 02:49:56,925 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:49:56,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:49:56,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1579286360, now seen corresponding path program 1 times [2022-10-16 02:49:56,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:49:56,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559803776] [2022-10-16 02:49:56,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:49:56,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:49:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:49:57,005 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:49:57,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:49:57,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559803776] [2022-10-16 02:49:57,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559803776] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:49:57,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:49:57,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:49:57,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777013744] [2022-10-16 02:49:57,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:49:57,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:49:57,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:49:57,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:49:57,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:57,008 INFO L87 Difference]: Start difference. First operand 111559 states and 172364 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:49:58,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:49:58,256 INFO L93 Difference]: Finished difference Result 218454 states and 334414 transitions. [2022-10-16 02:49:58,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:49:58,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-10-16 02:49:58,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:49:58,682 INFO L225 Difference]: With dead ends: 218454 [2022-10-16 02:49:58,683 INFO L226 Difference]: Without dead ends: 218454 [2022-10-16 02:49:58,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:49:58,688 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 134 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:49:58,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 458 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:49:58,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218454 states. [2022-10-16 02:50:01,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218454 to 218452. [2022-10-16 02:50:02,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218452 states, 218451 states have (on average 1.5308375791367401) internal successors, (334413), 218451 states have internal predecessors, (334413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:03,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218452 states to 218452 states and 334413 transitions. [2022-10-16 02:50:03,439 INFO L78 Accepts]: Start accepts. Automaton has 218452 states and 334413 transitions. Word has length 103 [2022-10-16 02:50:03,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:03,440 INFO L495 AbstractCegarLoop]: Abstraction has 218452 states and 334413 transitions. [2022-10-16 02:50:03,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:03,440 INFO L276 IsEmpty]: Start isEmpty. Operand 218452 states and 334413 transitions. [2022-10-16 02:50:03,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 02:50:03,446 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:03,446 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:50:03,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 02:50:03,447 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:03,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:03,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1783858254, now seen corresponding path program 1 times [2022-10-16 02:50:03,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:03,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071101366] [2022-10-16 02:50:03,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:03,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:03,530 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:50:03,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:03,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071101366] [2022-10-16 02:50:03,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071101366] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:03,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:03,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:50:03,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269748723] [2022-10-16 02:50:03,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:03,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:50:03,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:03,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:50:03,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:03,533 INFO L87 Difference]: Start difference. First operand 218452 states and 334413 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:06,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:50:06,036 INFO L93 Difference]: Finished difference Result 427611 states and 648260 transitions. [2022-10-16 02:50:06,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:50:06,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-10-16 02:50:06,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:50:07,159 INFO L225 Difference]: With dead ends: 427611 [2022-10-16 02:50:07,159 INFO L226 Difference]: Without dead ends: 427611 [2022-10-16 02:50:07,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:07,160 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 153 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:50:07,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 491 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:50:07,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427611 states. [2022-10-16 02:50:13,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427611 to 427609. [2022-10-16 02:50:14,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427609 states, 427608 states have (on average 1.5160123290490355) internal successors, (648259), 427608 states have internal predecessors, (648259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:16,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427609 states to 427609 states and 648259 transitions. [2022-10-16 02:50:16,438 INFO L78 Accepts]: Start accepts. Automaton has 427609 states and 648259 transitions. Word has length 103 [2022-10-16 02:50:16,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:16,438 INFO L495 AbstractCegarLoop]: Abstraction has 427609 states and 648259 transitions. [2022-10-16 02:50:16,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:16,438 INFO L276 IsEmpty]: Start isEmpty. Operand 427609 states and 648259 transitions. [2022-10-16 02:50:16,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 02:50:16,472 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:16,475 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:50:16,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 02:50:16,475 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:16,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:16,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1753174351, now seen corresponding path program 1 times [2022-10-16 02:50:16,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:16,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570629972] [2022-10-16 02:50:16,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:16,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:16,634 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:50:16,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:16,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570629972] [2022-10-16 02:50:16,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570629972] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:16,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:16,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:50:16,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863683492] [2022-10-16 02:50:16,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:16,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:50:16,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:16,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:50:16,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:16,636 INFO L87 Difference]: Start difference. First operand 427609 states and 648259 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:18,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:50:18,224 INFO L93 Difference]: Finished difference Result 364585 states and 550430 transitions. [2022-10-16 02:50:18,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:50:18,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-10-16 02:50:18,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:50:19,574 INFO L225 Difference]: With dead ends: 364585 [2022-10-16 02:50:19,574 INFO L226 Difference]: Without dead ends: 364585 [2022-10-16 02:50:19,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:19,575 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 84 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:50:19,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 440 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:50:19,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364585 states. [2022-10-16 02:50:24,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364585 to 364355. [2022-10-16 02:50:25,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364355 states, 364354 states have (on average 1.5098914791658662) internal successors, (550135), 364354 states have internal predecessors, (550135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:27,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364355 states to 364355 states and 550135 transitions. [2022-10-16 02:50:27,491 INFO L78 Accepts]: Start accepts. Automaton has 364355 states and 550135 transitions. Word has length 103 [2022-10-16 02:50:27,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:27,491 INFO L495 AbstractCegarLoop]: Abstraction has 364355 states and 550135 transitions. [2022-10-16 02:50:27,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:27,492 INFO L276 IsEmpty]: Start isEmpty. Operand 364355 states and 550135 transitions. [2022-10-16 02:50:27,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 02:50:27,498 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:27,499 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:50:27,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 02:50:27,500 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:27,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:27,500 INFO L85 PathProgramCache]: Analyzing trace with hash 529411729, now seen corresponding path program 1 times [2022-10-16 02:50:27,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:27,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412643505] [2022-10-16 02:50:27,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:27,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:27,690 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:50:27,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:27,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412643505] [2022-10-16 02:50:27,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412643505] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:27,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:27,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:50:27,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128755921] [2022-10-16 02:50:27,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:27,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:50:27,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:27,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:50:27,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:27,693 INFO L87 Difference]: Start difference. First operand 364355 states and 550135 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:29,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:50:29,176 INFO L93 Difference]: Finished difference Result 154583 states and 232362 transitions. [2022-10-16 02:50:29,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:50:29,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-10-16 02:50:29,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:50:29,573 INFO L225 Difference]: With dead ends: 154583 [2022-10-16 02:50:29,573 INFO L226 Difference]: Without dead ends: 154583 [2022-10-16 02:50:29,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:29,574 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 64 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:50:29,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 411 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:50:29,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154583 states. [2022-10-16 02:50:32,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154583 to 154069. [2022-10-16 02:50:32,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154069 states, 154068 states have (on average 1.5037191370044396) internal successors, (231675), 154068 states have internal predecessors, (231675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:33,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154069 states to 154069 states and 231675 transitions. [2022-10-16 02:50:33,420 INFO L78 Accepts]: Start accepts. Automaton has 154069 states and 231675 transitions. Word has length 103 [2022-10-16 02:50:33,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:33,420 INFO L495 AbstractCegarLoop]: Abstraction has 154069 states and 231675 transitions. [2022-10-16 02:50:33,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:33,421 INFO L276 IsEmpty]: Start isEmpty. Operand 154069 states and 231675 transitions. [2022-10-16 02:50:33,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-16 02:50:33,435 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:33,436 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:50:33,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 02:50:33,436 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:33,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:33,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1115615535, now seen corresponding path program 1 times [2022-10-16 02:50:33,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:33,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119585870] [2022-10-16 02:50:33,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:33,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:33,682 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:50:33,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:33,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119585870] [2022-10-16 02:50:33,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119585870] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:33,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:33,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:50:33,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112455301] [2022-10-16 02:50:33,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:33,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:50:33,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:33,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:50:33,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:33,690 INFO L87 Difference]: Start difference. First operand 154069 states and 231675 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:34,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:50:34,888 INFO L93 Difference]: Finished difference Result 72261 states and 108092 transitions. [2022-10-16 02:50:34,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:50:34,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-10-16 02:50:34,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:50:35,175 INFO L225 Difference]: With dead ends: 72261 [2022-10-16 02:50:35,175 INFO L226 Difference]: Without dead ends: 72261 [2022-10-16 02:50:35,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:35,176 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 56 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:50:35,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 370 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:50:35,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72261 states. [2022-10-16 02:50:36,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72261 to 72235. [2022-10-16 02:50:36,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72235 states, 72234 states have (on average 1.4960683334717724) internal successors, (108067), 72234 states have internal predecessors, (108067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:36,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72235 states to 72235 states and 108067 transitions. [2022-10-16 02:50:36,487 INFO L78 Accepts]: Start accepts. Automaton has 72235 states and 108067 transitions. Word has length 103 [2022-10-16 02:50:36,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:36,487 INFO L495 AbstractCegarLoop]: Abstraction has 72235 states and 108067 transitions. [2022-10-16 02:50:36,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:36,487 INFO L276 IsEmpty]: Start isEmpty. Operand 72235 states and 108067 transitions. [2022-10-16 02:50:36,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-16 02:50:36,492 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:36,492 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:50:36,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-10-16 02:50:36,493 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:36,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:36,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1922997902, now seen corresponding path program 1 times [2022-10-16 02:50:36,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:36,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436374848] [2022-10-16 02:50:36,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:36,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:36,902 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 02:50:36,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:36,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436374848] [2022-10-16 02:50:36,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436374848] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:36,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:36,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:50:36,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762904361] [2022-10-16 02:50:36,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:36,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:50:36,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:36,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:50:36,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:50:36,905 INFO L87 Difference]: Start difference. First operand 72235 states and 108067 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:37,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:50:37,926 INFO L93 Difference]: Finished difference Result 134433 states and 199871 transitions. [2022-10-16 02:50:37,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:50:37,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 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 104 [2022-10-16 02:50:37,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:50:38,226 INFO L225 Difference]: With dead ends: 134433 [2022-10-16 02:50:38,226 INFO L226 Difference]: Without dead ends: 134433 [2022-10-16 02:50:38,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:50:38,228 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 361 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:50:38,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 575 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:50:38,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134433 states. [2022-10-16 02:50:40,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134433 to 115941. [2022-10-16 02:50:40,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115941 states, 115940 states have (on average 1.4943332758323271) internal successors, (173253), 115940 states have internal predecessors, (173253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:40,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115941 states to 115941 states and 173253 transitions. [2022-10-16 02:50:40,672 INFO L78 Accepts]: Start accepts. Automaton has 115941 states and 173253 transitions. Word has length 104 [2022-10-16 02:50:40,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:40,672 INFO L495 AbstractCegarLoop]: Abstraction has 115941 states and 173253 transitions. [2022-10-16 02:50:40,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:40,673 INFO L276 IsEmpty]: Start isEmpty. Operand 115941 states and 173253 transitions. [2022-10-16 02:50:40,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-16 02:50:40,675 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:40,675 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:50:40,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-10-16 02:50:40,687 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:40,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:40,687 INFO L85 PathProgramCache]: Analyzing trace with hash 899894043, now seen corresponding path program 1 times [2022-10-16 02:50:40,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:40,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480012951] [2022-10-16 02:50:40,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:40,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:41,232 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 02:50:41,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:41,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480012951] [2022-10-16 02:50:41,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480012951] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:41,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:41,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 02:50:41,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832988040] [2022-10-16 02:50:41,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:41,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:50:41,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:41,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:50:41,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:50:41,235 INFO L87 Difference]: Start difference. First operand 115941 states and 173253 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:42,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:50:42,633 INFO L93 Difference]: Finished difference Result 209211 states and 310361 transitions. [2022-10-16 02:50:42,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:50:42,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 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 104 [2022-10-16 02:50:42,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:50:43,126 INFO L225 Difference]: With dead ends: 209211 [2022-10-16 02:50:43,126 INFO L226 Difference]: Without dead ends: 209211 [2022-10-16 02:50:43,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:50:43,128 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 344 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:50:43,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 589 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:50:43,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209211 states. [2022-10-16 02:50:46,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209211 to 179827. [2022-10-16 02:50:46,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179827 states, 179826 states have (on average 1.4918810405614316) internal successors, (268279), 179826 states have internal predecessors, (268279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:47,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179827 states to 179827 states and 268279 transitions. [2022-10-16 02:50:47,431 INFO L78 Accepts]: Start accepts. Automaton has 179827 states and 268279 transitions. Word has length 104 [2022-10-16 02:50:47,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:47,431 INFO L495 AbstractCegarLoop]: Abstraction has 179827 states and 268279 transitions. [2022-10-16 02:50:47,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:47,432 INFO L276 IsEmpty]: Start isEmpty. Operand 179827 states and 268279 transitions. [2022-10-16 02:50:47,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-16 02:50:47,434 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:47,434 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:50:47,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-10-16 02:50:47,434 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:47,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:47,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1616950960, now seen corresponding path program 1 times [2022-10-16 02:50:47,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:47,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629542131] [2022-10-16 02:50:47,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:47,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:47,504 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 02:50:47,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:47,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629542131] [2022-10-16 02:50:47,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629542131] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:47,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:47,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:50:47,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698203184] [2022-10-16 02:50:47,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:47,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:50:47,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:47,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:50:47,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:47,507 INFO L87 Difference]: Start difference. First operand 179827 states and 268279 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:48,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:50:48,921 INFO L93 Difference]: Finished difference Result 265117 states and 393374 transitions. [2022-10-16 02:50:48,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:50:48,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 106 [2022-10-16 02:50:48,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:50:49,461 INFO L225 Difference]: With dead ends: 265117 [2022-10-16 02:50:49,461 INFO L226 Difference]: Without dead ends: 265117 [2022-10-16 02:50:49,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:49,462 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 106 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:50:49,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 409 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:50:49,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265117 states. [2022-10-16 02:50:53,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265117 to 181683. [2022-10-16 02:50:53,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181683 states, 181682 states have (on average 1.4919309562862584) internal successors, (271057), 181682 states have internal predecessors, (271057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:54,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181683 states to 181683 states and 271057 transitions. [2022-10-16 02:50:54,122 INFO L78 Accepts]: Start accepts. Automaton has 181683 states and 271057 transitions. Word has length 106 [2022-10-16 02:50:54,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:50:54,122 INFO L495 AbstractCegarLoop]: Abstraction has 181683 states and 271057 transitions. [2022-10-16 02:50:54,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:54,123 INFO L276 IsEmpty]: Start isEmpty. Operand 181683 states and 271057 transitions. [2022-10-16 02:50:54,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-16 02:50:54,124 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:50:54,125 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:50:54,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-10-16 02:50:54,125 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:50:54,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:50:54,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1789428545, now seen corresponding path program 1 times [2022-10-16 02:50:54,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:50:54,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257961865] [2022-10-16 02:50:54,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:50:54,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:50:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:50:54,252 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 02:50:54,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:50:54,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257961865] [2022-10-16 02:50:54,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257961865] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:50:54,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:50:54,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:50:54,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200246948] [2022-10-16 02:50:54,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:50:54,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:50:54,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:50:54,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:50:54,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:54,255 INFO L87 Difference]: Start difference. First operand 181683 states and 271057 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:50:56,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:50:56,191 INFO L93 Difference]: Finished difference Result 273029 states and 405120 transitions. [2022-10-16 02:50:56,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:50:56,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 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 106 [2022-10-16 02:50:56,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:50:57,283 INFO L225 Difference]: With dead ends: 273029 [2022-10-16 02:50:57,284 INFO L226 Difference]: Without dead ends: 273029 [2022-10-16 02:50:57,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:50:57,287 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 98 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:50:57,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 408 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:50:57,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273029 states. [2022-10-16 02:51:00,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273029 to 183539. [2022-10-16 02:51:00,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183539 states, 183538 states have (on average 1.491979862480794) internal successors, (273835), 183538 states have internal predecessors, (273835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:51:01,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183539 states to 183539 states and 273835 transitions. [2022-10-16 02:51:01,129 INFO L78 Accepts]: Start accepts. Automaton has 183539 states and 273835 transitions. Word has length 106 [2022-10-16 02:51:01,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:51:01,130 INFO L495 AbstractCegarLoop]: Abstraction has 183539 states and 273835 transitions. [2022-10-16 02:51:01,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:51:01,130 INFO L276 IsEmpty]: Start isEmpty. Operand 183539 states and 273835 transitions. [2022-10-16 02:51:01,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-10-16 02:51:01,135 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:51:01,135 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:51:01,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-10-16 02:51:01,136 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:51:01,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:51:01,136 INFO L85 PathProgramCache]: Analyzing trace with hash 366594574, now seen corresponding path program 1 times [2022-10-16 02:51:01,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:51:01,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149284246] [2022-10-16 02:51:01,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:51:01,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:51:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:51:01,489 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:51:01,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:51:01,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149284246] [2022-10-16 02:51:01,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149284246] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:51:01,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:51:01,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:51:01,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891213522] [2022-10-16 02:51:01,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:51:01,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:51:01,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:51:01,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:51:01,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:51:01,491 INFO L87 Difference]: Start difference. First operand 183539 states and 273835 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:51:02,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:51:02,769 INFO L93 Difference]: Finished difference Result 258841 states and 371964 transitions. [2022-10-16 02:51:02,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:51:02,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 108 [2022-10-16 02:51:02,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:51:03,241 INFO L225 Difference]: With dead ends: 258841 [2022-10-16 02:51:03,242 INFO L226 Difference]: Without dead ends: 258841 [2022-10-16 02:51:03,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:51:03,243 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 75 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:51:03,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 462 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:51:03,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258841 states. [2022-10-16 02:51:06,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258841 to 248519. [2022-10-16 02:51:06,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248519 states, 248518 states have (on average 1.448309579185411) internal successors, (359931), 248518 states have internal predecessors, (359931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:51:07,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248519 states to 248519 states and 359931 transitions. [2022-10-16 02:51:07,920 INFO L78 Accepts]: Start accepts. Automaton has 248519 states and 359931 transitions. Word has length 108 [2022-10-16 02:51:07,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:51:07,923 INFO L495 AbstractCegarLoop]: Abstraction has 248519 states and 359931 transitions. [2022-10-16 02:51:07,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:51:07,923 INFO L276 IsEmpty]: Start isEmpty. Operand 248519 states and 359931 transitions. [2022-10-16 02:51:07,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-10-16 02:51:07,925 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:51:07,925 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:51:07,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-10-16 02:51:07,926 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:51:07,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:51:07,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1389915410, now seen corresponding path program 1 times [2022-10-16 02:51:07,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:51:07,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205941225] [2022-10-16 02:51:07,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:51:07,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:51:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:51:08,181 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:51:08,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:51:08,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205941225] [2022-10-16 02:51:08,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205941225] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:51:08,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794197661] [2022-10-16 02:51:08,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:51:08,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:51:08,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:51:08,188 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:51:08,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 02:51:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:51:08,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 02:51:08,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:51:08,506 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 02:51:08,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 02:51:08,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794197661] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:51:08,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 02:51:08,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-16 02:51:08,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424341579] [2022-10-16 02:51:08,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:51:08,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:51:08,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:51:08,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:51:08,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:51:08,509 INFO L87 Difference]: Start difference. First operand 248519 states and 359931 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:51:10,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:51:10,805 INFO L93 Difference]: Finished difference Result 482721 states and 689251 transitions. [2022-10-16 02:51:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 02:51:10,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 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 108 [2022-10-16 02:51:10,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:51:11,888 INFO L225 Difference]: With dead ends: 482721 [2022-10-16 02:51:11,888 INFO L226 Difference]: Without dead ends: 482721 [2022-10-16 02:51:11,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 02:51:11,889 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 404 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:51:11,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 478 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:51:12,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482721 states. [2022-10-16 02:51:18,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482721 to 482719. [2022-10-16 02:51:19,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482719 states, 482718 states have (on average 1.427852286428101) internal successors, (689250), 482718 states have internal predecessors, (689250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:51:21,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482719 states to 482719 states and 689250 transitions. [2022-10-16 02:51:21,524 INFO L78 Accepts]: Start accepts. Automaton has 482719 states and 689250 transitions. Word has length 108 [2022-10-16 02:51:21,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:51:21,525 INFO L495 AbstractCegarLoop]: Abstraction has 482719 states and 689250 transitions. [2022-10-16 02:51:21,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:51:21,525 INFO L276 IsEmpty]: Start isEmpty. Operand 482719 states and 689250 transitions. [2022-10-16 02:51:21,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-10-16 02:51:21,527 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:51:21,527 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:51:21,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 02:51:21,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-10-16 02:51:21,728 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:51:21,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:51:21,730 INFO L85 PathProgramCache]: Analyzing trace with hash -2109234302, now seen corresponding path program 1 times [2022-10-16 02:51:21,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:51:21,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130590955] [2022-10-16 02:51:21,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:51:21,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:51:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:51:21,797 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 02:51:21,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:51:21,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130590955] [2022-10-16 02:51:21,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130590955] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:51:21,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:51:21,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:51:21,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013428567] [2022-10-16 02:51:21,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:51:21,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:51:21,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:51:21,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:51:21,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:51:21,799 INFO L87 Difference]: Start difference. First operand 482719 states and 689250 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:51:27,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:51:27,427 INFO L93 Difference]: Finished difference Result 965296 states and 1378321 transitions. [2022-10-16 02:51:27,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:51:27,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-10-16 02:51:27,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:51:31,414 INFO L225 Difference]: With dead ends: 965296 [2022-10-16 02:51:31,414 INFO L226 Difference]: Without dead ends: 965296 [2022-10-16 02:51:31,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:51:31,419 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 180 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 402 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 [2022-10-16 02:51:31,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 402 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:51:32,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965296 states. [2022-10-16 02:51:43,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965296 to 482722. [2022-10-16 02:51:43,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482722 states, 482721 states have (on average 1.4278516990145447) internal successors, (689254), 482721 states have internal predecessors, (689254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:51:47,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482722 states to 482722 states and 689254 transitions. [2022-10-16 02:51:47,246 INFO L78 Accepts]: Start accepts. Automaton has 482722 states and 689254 transitions. Word has length 109 [2022-10-16 02:51:47,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:51:47,247 INFO L495 AbstractCegarLoop]: Abstraction has 482722 states and 689254 transitions. [2022-10-16 02:51:47,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:51:47,247 INFO L276 IsEmpty]: Start isEmpty. Operand 482722 states and 689254 transitions. [2022-10-16 02:51:47,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-10-16 02:51:47,250 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:51:47,251 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:51:47,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-10-16 02:51:47,251 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:51:47,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:51:47,252 INFO L85 PathProgramCache]: Analyzing trace with hash 730760749, now seen corresponding path program 1 times [2022-10-16 02:51:47,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:51:47,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020033541] [2022-10-16 02:51:47,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:51:47,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:51:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:51:47,330 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 02:51:47,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:51:47,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020033541] [2022-10-16 02:51:47,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020033541] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:51:47,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:51:47,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:51:47,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925037040] [2022-10-16 02:51:47,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:51:47,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:51:47,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:51:47,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:51:47,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:51:47,334 INFO L87 Difference]: Start difference. First operand 482722 states and 689254 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:51:51,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:51:51,596 INFO L93 Difference]: Finished difference Result 950711 states and 1345049 transitions. [2022-10-16 02:51:51,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:51:51,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-10-16 02:51:51,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:51:54,089 INFO L225 Difference]: With dead ends: 950711 [2022-10-16 02:51:54,089 INFO L226 Difference]: Without dead ends: 950711 [2022-10-16 02:51:54,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:51:54,090 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 135 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:51:54,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 560 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:51:55,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950711 states. [2022-10-16 02:52:12,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950711 to 950709. [2022-10-16 02:52:15,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950709 states, 950708 states have (on average 1.4147856124067537) internal successors, (1345048), 950708 states have internal predecessors, (1345048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)