/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_lcr.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 02:44:33,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 02:44:33,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 02:44:33,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 02:44:33,538 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 02:44:33,567 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 02:44:33,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 02:44:33,568 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 02:44:33,568 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 02:44:33,569 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 02:44:33,570 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 02:44:33,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 02:44:33,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 02:44:33,571 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 02:44:33,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 02:44:33,572 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 02:44:33,572 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 02:44:33,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 02:44:33,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 02:44:33,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 02:44:33,573 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 02:44:33,573 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 02:44:33,573 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 02:44:33,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 02:44:33,574 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 02:44:33,574 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 02:44:33,574 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 02:44:33,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 02:44:33,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 02:44:33,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 02:44:33,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:44:33,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 02:44:33,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 02:44:33,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 02:44:33,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 02:44:33,576 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 02:44:33,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 02:44:33,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 02:44:33,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 02:44:33,969 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 02:44:33,969 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 02:44:33,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c [2022-10-16 02:44:34,047 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2890eb646/39e339fd437e46ec9504de46070bdd3d/FLAGc2fa7e353 [2022-10-16 02:44:34,808 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 02:44:34,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c [2022-10-16 02:44:34,825 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2890eb646/39e339fd437e46ec9504de46070bdd3d/FLAGc2fa7e353 [2022-10-16 02:44:35,103 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2890eb646/39e339fd437e46ec9504de46070bdd3d [2022-10-16 02:44:35,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 02:44:35,118 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 02:44:35,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 02:44:35,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 02:44:35,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 02:44:35,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:44:35" (1/1) ... [2022-10-16 02:44:35,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78c90e6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:35, skipping insertion in model container [2022-10-16 02:44:35,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:44:35" (1/1) ... [2022-10-16 02:44:35,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 02:44:35,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 02:44:35,402 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_lcr.4.ufo.UNBOUNDED.pals.c[8305,8318] [2022-10-16 02:44:35,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:44:35,417 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 02:44:35,469 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_lcr.4.ufo.UNBOUNDED.pals.c[8305,8318] [2022-10-16 02:44:35,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 02:44:35,489 INFO L208 MainTranslator]: Completed translation [2022-10-16 02:44:35,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:35 WrapperNode [2022-10-16 02:44:35,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 02:44:35,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 02:44:35,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 02:44:35,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 02:44:35,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:35" (1/1) ... [2022-10-16 02:44:35,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:35" (1/1) ... [2022-10-16 02:44:35,579 INFO L138 Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 274 [2022-10-16 02:44:35,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 02:44:35,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 02:44:35,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 02:44:35,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 02:44:35,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:35" (1/1) ... [2022-10-16 02:44:35,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:35" (1/1) ... [2022-10-16 02:44:35,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:35" (1/1) ... [2022-10-16 02:44:35,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:35" (1/1) ... [2022-10-16 02:44:35,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:35" (1/1) ... [2022-10-16 02:44:35,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:35" (1/1) ... [2022-10-16 02:44:35,655 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:35" (1/1) ... [2022-10-16 02:44:35,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:35" (1/1) ... [2022-10-16 02:44:35,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 02:44:35,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 02:44:35,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 02:44:35,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 02:44:35,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:35" (1/1) ... [2022-10-16 02:44:35,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 02:44:35,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:44:35,725 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 02:44:35,729 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 02:44:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 02:44:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 02:44:35,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 02:44:35,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 02:44:35,863 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 02:44:35,865 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 02:44:36,372 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 02:44:36,382 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 02:44:36,382 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 02:44:36,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:44:36 BoogieIcfgContainer [2022-10-16 02:44:36,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 02:44:36,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 02:44:36,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 02:44:36,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 02:44:36,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:44:35" (1/3) ... [2022-10-16 02:44:36,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732a1785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:44:36, skipping insertion in model container [2022-10-16 02:44:36,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:35" (2/3) ... [2022-10-16 02:44:36,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732a1785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:44:36, skipping insertion in model container [2022-10-16 02:44:36,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:44:36" (3/3) ... [2022-10-16 02:44:36,410 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c [2022-10-16 02:44:36,457 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 02:44:36,458 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-16 02:44:36,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 02:44:36,545 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;@2ebcd554, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 02:44:36,545 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-16 02:44:36,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 77 states have (on average 1.7142857142857142) internal successors, (132), 79 states have internal predecessors, (132), 0 states have call successors, (0), 0 states 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 02:44:36,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 02:44:36,559 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:36,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:44:36,561 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:36,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:36,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1138186122, now seen corresponding path program 1 times [2022-10-16 02:44:36,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:36,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648336339] [2022-10-16 02:44:36,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:36,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:36,855 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 02:44:36,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:36,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648336339] [2022-10-16 02:44:36,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648336339] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:36,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:36,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 02:44:36,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390314844] [2022-10-16 02:44:36,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:36,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 02:44:36,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:36,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 02:44:36,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 02:44:36,904 INFO L87 Difference]: Start difference. First operand has 80 states, 77 states have (on average 1.7142857142857142) internal successors, (132), 79 states have internal predecessors, (132), 0 states have call successors, (0), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 02:44:36,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:36,928 INFO L93 Difference]: Finished difference Result 75 states and 124 transitions. [2022-10-16 02:44:36,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 02:44:36,931 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-10-16 02:44:36,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:36,942 INFO L225 Difference]: With dead ends: 75 [2022-10-16 02:44:36,942 INFO L226 Difference]: Without dead ends: 75 [2022-10-16 02:44:36,945 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 02:44:36,949 INFO L413 NwaCegarLoop]: 124 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, 124 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 02:44:36,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:36,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-10-16 02:44:36,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-10-16 02:44:36,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.6756756756756757) internal successors, (124), 74 states have internal predecessors, (124), 0 states have call successors, (0), 0 states 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 02:44:36,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 124 transitions. [2022-10-16 02:44:36,994 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 124 transitions. Word has length 10 [2022-10-16 02:44:36,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:36,995 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 124 transitions. [2022-10-16 02:44:36,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 02:44:36,995 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 124 transitions. [2022-10-16 02:44:36,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 02:44:36,997 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:36,998 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] [2022-10-16 02:44:36,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 02:44:36,998 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:36,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:36,999 INFO L85 PathProgramCache]: Analyzing trace with hash -305401613, now seen corresponding path program 1 times [2022-10-16 02:44:37,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:37,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724190114] [2022-10-16 02:44:37,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:37,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:37,319 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 02:44:37,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:37,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724190114] [2022-10-16 02:44:37,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724190114] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:37,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:37,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:44:37,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403137313] [2022-10-16 02:44:37,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:37,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 02:44:37,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:37,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 02:44:37,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 02:44:37,325 INFO L87 Difference]: Start difference. First operand 75 states and 124 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states 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 02:44:37,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:37,404 INFO L93 Difference]: Finished difference Result 78 states and 126 transitions. [2022-10-16 02:44:37,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:44:37,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2022-10-16 02:44:37,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:37,406 INFO L225 Difference]: With dead ends: 78 [2022-10-16 02:44:37,407 INFO L226 Difference]: Without dead ends: 75 [2022-10-16 02:44:37,407 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 02:44:37,409 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 3 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:37,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 462 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:37,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-10-16 02:44:37,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-10-16 02:44:37,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.364864864864865) internal successors, (101), 74 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 02:44:37,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 101 transitions. [2022-10-16 02:44:37,421 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 101 transitions. Word has length 29 [2022-10-16 02:44:37,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:37,422 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 101 transitions. [2022-10-16 02:44:37,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states 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 02:44:37,422 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 101 transitions. [2022-10-16 02:44:37,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 02:44:37,424 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:37,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:44:37,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 02:44:37,425 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:37,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:37,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1295954354, now seen corresponding path program 1 times [2022-10-16 02:44:37,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:37,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34532794] [2022-10-16 02:44:37,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:37,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:37,611 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 02:44:37,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:37,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34532794] [2022-10-16 02:44:37,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34532794] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:37,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:37,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:44:37,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679692676] [2022-10-16 02:44:37,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:37,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:44:37,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:37,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:44:37,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:44:37,618 INFO L87 Difference]: Start difference. First operand 75 states and 101 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:37,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:37,666 INFO L93 Difference]: Finished difference Result 115 states and 162 transitions. [2022-10-16 02:44:37,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:44:37,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-10-16 02:44:37,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:37,674 INFO L225 Difference]: With dead ends: 115 [2022-10-16 02:44:37,675 INFO L226 Difference]: Without dead ends: 115 [2022-10-16 02:44:37,675 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 02:44:37,677 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 58 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 217 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 02:44:37,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 217 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:37,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-10-16 02:44:37,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2022-10-16 02:44:37,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.4375) internal successors, (161), 112 states have internal predecessors, (161), 0 states have call successors, (0), 0 states 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 02:44:37,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 161 transitions. [2022-10-16 02:44:37,709 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 161 transitions. Word has length 51 [2022-10-16 02:44:37,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:37,710 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 161 transitions. [2022-10-16 02:44:37,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:37,710 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 161 transitions. [2022-10-16 02:44:37,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 02:44:37,714 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:37,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:44:37,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 02:44:37,715 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:37,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:37,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1404728260, now seen corresponding path program 1 times [2022-10-16 02:44:37,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:37,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578878310] [2022-10-16 02:44:37,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:37,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:37,875 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 02:44:37,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:37,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578878310] [2022-10-16 02:44:37,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578878310] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:37,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:37,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:44:37,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999185580] [2022-10-16 02:44:37,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:37,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:44:37,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:37,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:44:37,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:44:37,879 INFO L87 Difference]: Start difference. First operand 113 states and 161 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:37,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:37,911 INFO L93 Difference]: Finished difference Result 185 states and 271 transitions. [2022-10-16 02:44:37,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:44:37,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-10-16 02:44:37,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:37,914 INFO L225 Difference]: With dead ends: 185 [2022-10-16 02:44:37,914 INFO L226 Difference]: Without dead ends: 185 [2022-10-16 02:44:37,915 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 02:44:37,917 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 54 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 216 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 02:44:37,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 216 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:37,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-10-16 02:44:37,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 183. [2022-10-16 02:44:37,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 182 states have (on average 1.4835164835164836) internal successors, (270), 182 states have internal predecessors, (270), 0 states have call successors, (0), 0 states 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 02:44:37,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 270 transitions. [2022-10-16 02:44:37,934 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 270 transitions. Word has length 51 [2022-10-16 02:44:37,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:37,934 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 270 transitions. [2022-10-16 02:44:37,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:37,935 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 270 transitions. [2022-10-16 02:44:37,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 02:44:37,937 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:37,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:44:37,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 02:44:37,938 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:37,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:37,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1742521402, now seen corresponding path program 1 times [2022-10-16 02:44:37,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:37,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099555166] [2022-10-16 02:44:37,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:37,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:38,132 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 02:44:38,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:38,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099555166] [2022-10-16 02:44:38,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099555166] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:38,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:38,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:44:38,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800629040] [2022-10-16 02:44:38,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:38,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:44:38,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:38,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:44:38,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:44:38,136 INFO L87 Difference]: Start difference. First operand 183 states and 270 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:38,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:38,332 INFO L93 Difference]: Finished difference Result 1261 states and 1925 transitions. [2022-10-16 02:44:38,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 02:44:38,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-10-16 02:44:38,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:38,341 INFO L225 Difference]: With dead ends: 1261 [2022-10-16 02:44:38,341 INFO L226 Difference]: Without dead ends: 1261 [2022-10-16 02:44:38,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-10-16 02:44:38,343 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 761 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:38,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 862 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:44:38,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2022-10-16 02:44:38,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 335. [2022-10-16 02:44:38,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 1.5029940119760479) internal successors, (502), 334 states have internal predecessors, (502), 0 states have call successors, (0), 0 states 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 02:44:38,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 502 transitions. [2022-10-16 02:44:38,381 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 502 transitions. Word has length 51 [2022-10-16 02:44:38,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:38,382 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 502 transitions. [2022-10-16 02:44:38,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:38,382 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 502 transitions. [2022-10-16 02:44:38,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 02:44:38,384 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:38,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:44:38,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 02:44:38,384 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:38,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:38,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1889876246, now seen corresponding path program 1 times [2022-10-16 02:44:38,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:38,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487741789] [2022-10-16 02:44:38,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:38,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:38,474 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 02:44:38,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:38,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487741789] [2022-10-16 02:44:38,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487741789] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:38,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:38,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:44:38,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316393302] [2022-10-16 02:44:38,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:38,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:44:38,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:38,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:44:38,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:44:38,478 INFO L87 Difference]: Start difference. First operand 335 states and 502 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:38,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:38,503 INFO L93 Difference]: Finished difference Result 597 states and 879 transitions. [2022-10-16 02:44:38,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:44:38,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-10-16 02:44:38,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:38,507 INFO L225 Difference]: With dead ends: 597 [2022-10-16 02:44:38,508 INFO L226 Difference]: Without dead ends: 597 [2022-10-16 02:44:38,508 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 02:44:38,510 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 41 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:38,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 162 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:38,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-10-16 02:44:38,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 587. [2022-10-16 02:44:38,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 586 states have (on average 1.484641638225256) internal successors, (870), 586 states have internal predecessors, (870), 0 states have call successors, (0), 0 states 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 02:44:38,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 870 transitions. [2022-10-16 02:44:38,534 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 870 transitions. Word has length 53 [2022-10-16 02:44:38,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:38,535 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 870 transitions. [2022-10-16 02:44:38,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:38,535 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 870 transitions. [2022-10-16 02:44:38,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 02:44:38,537 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:38,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:44:38,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 02:44:38,538 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:38,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:38,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1823382734, now seen corresponding path program 1 times [2022-10-16 02:44:38,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:38,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720344737] [2022-10-16 02:44:38,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:38,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:38,907 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 02:44:38,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:38,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720344737] [2022-10-16 02:44:38,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720344737] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:38,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:38,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:44:38,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338422558] [2022-10-16 02:44:38,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:38,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:44:38,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:38,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:44:38,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:44:38,913 INFO L87 Difference]: Start difference. First operand 587 states and 870 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:39,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:39,062 INFO L93 Difference]: Finished difference Result 589 states and 863 transitions. [2022-10-16 02:44:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:44:39,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-10-16 02:44:39,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:39,068 INFO L225 Difference]: With dead ends: 589 [2022-10-16 02:44:39,070 INFO L226 Difference]: Without dead ends: 589 [2022-10-16 02:44:39,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:44:39,075 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 292 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:39,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 321 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:44:39,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2022-10-16 02:44:39,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 587. [2022-10-16 02:44:39,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 586 states have (on average 1.47098976109215) internal successors, (862), 586 states have internal predecessors, (862), 0 states have call successors, (0), 0 states 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 02:44:39,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 862 transitions. [2022-10-16 02:44:39,098 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 862 transitions. Word has length 53 [2022-10-16 02:44:39,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:39,100 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 862 transitions. [2022-10-16 02:44:39,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:39,101 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 862 transitions. [2022-10-16 02:44:39,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 02:44:39,108 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:39,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:44:39,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 02:44:39,109 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:39,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:39,109 INFO L85 PathProgramCache]: Analyzing trace with hash -34468658, now seen corresponding path program 1 times [2022-10-16 02:44:39,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:39,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058030139] [2022-10-16 02:44:39,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:39,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:39,210 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 02:44:39,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:39,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058030139] [2022-10-16 02:44:39,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058030139] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:39,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:39,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:44:39,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395126684] [2022-10-16 02:44:39,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:39,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:44:39,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:39,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:44:39,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:44:39,217 INFO L87 Difference]: Start difference. First operand 587 states and 862 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:39,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:39,261 INFO L93 Difference]: Finished difference Result 1049 states and 1519 transitions. [2022-10-16 02:44:39,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:44:39,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-10-16 02:44:39,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:39,277 INFO L225 Difference]: With dead ends: 1049 [2022-10-16 02:44:39,277 INFO L226 Difference]: Without dead ends: 1049 [2022-10-16 02:44:39,277 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 02:44:39,279 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 50 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 216 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 02:44:39,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 216 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:39,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2022-10-16 02:44:39,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1047. [2022-10-16 02:44:39,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1046 states have (on average 1.4512428298279159) internal successors, (1518), 1046 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states 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 02:44:39,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1518 transitions. [2022-10-16 02:44:39,309 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1518 transitions. Word has length 53 [2022-10-16 02:44:39,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:39,310 INFO L495 AbstractCegarLoop]: Abstraction has 1047 states and 1518 transitions. [2022-10-16 02:44:39,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:39,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1518 transitions. [2022-10-16 02:44:39,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 02:44:39,311 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:39,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:44:39,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 02:44:39,312 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:39,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:39,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1105013027, now seen corresponding path program 1 times [2022-10-16 02:44:39,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:39,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499009552] [2022-10-16 02:44:39,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:39,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:39,668 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 02:44:39,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:39,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499009552] [2022-10-16 02:44:39,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499009552] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:39,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:39,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 02:44:39,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284640807] [2022-10-16 02:44:39,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:39,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 02:44:39,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:39,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 02:44:39,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 02:44:39,673 INFO L87 Difference]: Start difference. First operand 1047 states and 1518 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:39,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:39,807 INFO L93 Difference]: Finished difference Result 1815 states and 2594 transitions. [2022-10-16 02:44:39,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 02:44:39,808 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-10-16 02:44:39,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:39,817 INFO L225 Difference]: With dead ends: 1815 [2022-10-16 02:44:39,818 INFO L226 Difference]: Without dead ends: 1815 [2022-10-16 02:44:39,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-10-16 02:44:39,819 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 498 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:39,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 506 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:39,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-10-16 02:44:39,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1095. [2022-10-16 02:44:39,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 1094 states have (on average 1.4241316270566728) internal successors, (1558), 1094 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states 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 02:44:39,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1558 transitions. [2022-10-16 02:44:39,878 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1558 transitions. Word has length 54 [2022-10-16 02:44:39,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:39,878 INFO L495 AbstractCegarLoop]: Abstraction has 1095 states and 1558 transitions. [2022-10-16 02:44:39,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:39,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1558 transitions. [2022-10-16 02:44:39,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 02:44:39,880 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:39,880 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] [2022-10-16 02:44:39,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 02:44:39,880 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:39,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:39,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1044582089, now seen corresponding path program 1 times [2022-10-16 02:44:39,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:39,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332172588] [2022-10-16 02:44:39,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:39,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:39,934 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 02:44:39,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:39,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332172588] [2022-10-16 02:44:39,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332172588] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:39,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:39,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:44:39,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701763613] [2022-10-16 02:44:39,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:39,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:44:39,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:39,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:44:39,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:44:39,937 INFO L87 Difference]: Start difference. First operand 1095 states and 1558 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 02:44:39,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:39,960 INFO L93 Difference]: Finished difference Result 1579 states and 2233 transitions. [2022-10-16 02:44:39,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:44:39,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-10-16 02:44:39,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:39,969 INFO L225 Difference]: With dead ends: 1579 [2022-10-16 02:44:39,969 INFO L226 Difference]: Without dead ends: 1579 [2022-10-16 02:44:39,970 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 02:44:39,971 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 59 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 222 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 02:44:39,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 222 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:39,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2022-10-16 02:44:40,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1577. [2022-10-16 02:44:40,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1576 states have (on average 1.416243654822335) internal successors, (2232), 1576 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states 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 02:44:40,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 2232 transitions. [2022-10-16 02:44:40,010 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 2232 transitions. Word has length 55 [2022-10-16 02:44:40,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:40,010 INFO L495 AbstractCegarLoop]: Abstraction has 1577 states and 2232 transitions. [2022-10-16 02:44:40,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 02:44:40,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 2232 transitions. [2022-10-16 02:44:40,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 02:44:40,012 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:40,013 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] [2022-10-16 02:44:40,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 02:44:40,013 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:40,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:40,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1276698888, now seen corresponding path program 1 times [2022-10-16 02:44:40,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:40,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638929879] [2022-10-16 02:44:40,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:40,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:40,165 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 02:44:40,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:40,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638929879] [2022-10-16 02:44:40,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638929879] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:40,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:40,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:44:40,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967821025] [2022-10-16 02:44:40,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:40,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:44:40,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:40,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:44:40,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:44:40,168 INFO L87 Difference]: Start difference. First operand 1577 states and 2232 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:40,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:40,289 INFO L93 Difference]: Finished difference Result 6537 states and 9248 transitions. [2022-10-16 02:44:40,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:44:40,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-10-16 02:44:40,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:40,321 INFO L225 Difference]: With dead ends: 6537 [2022-10-16 02:44:40,321 INFO L226 Difference]: Without dead ends: 6537 [2022-10-16 02:44:40,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:44:40,322 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 467 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:40,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 493 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:44:40,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6537 states. [2022-10-16 02:44:40,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6537 to 3121. [2022-10-16 02:44:40,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 1.412820512820513) internal successors, (4408), 3120 states have internal predecessors, (4408), 0 states have call successors, (0), 0 states 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 02:44:40,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 4408 transitions. [2022-10-16 02:44:40,463 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 4408 transitions. Word has length 78 [2022-10-16 02:44:40,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:40,463 INFO L495 AbstractCegarLoop]: Abstraction has 3121 states and 4408 transitions. [2022-10-16 02:44:40,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:40,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 4408 transitions. [2022-10-16 02:44:40,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 02:44:40,465 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:40,466 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 02:44:40,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 02:44:40,466 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:40,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:40,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1827496306, now seen corresponding path program 1 times [2022-10-16 02:44:40,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:40,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622286159] [2022-10-16 02:44:40,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:40,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:40,616 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 02:44:40,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:40,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622286159] [2022-10-16 02:44:40,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622286159] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:40,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:40,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:44:40,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414228647] [2022-10-16 02:44:40,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:40,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:44:40,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:40,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:44:40,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:44:40,619 INFO L87 Difference]: Start difference. First operand 3121 states and 4408 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:40,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:40,751 INFO L93 Difference]: Finished difference Result 8081 states and 11424 transitions. [2022-10-16 02:44:40,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:44:40,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-10-16 02:44:40,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:40,791 INFO L225 Difference]: With dead ends: 8081 [2022-10-16 02:44:40,792 INFO L226 Difference]: Without dead ends: 8081 [2022-10-16 02:44:40,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:44:40,793 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 423 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:40,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 524 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:44:40,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8081 states. [2022-10-16 02:44:40,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8081 to 5441. [2022-10-16 02:44:40,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5441 states, 5440 states have (on average 1.4066176470588236) internal successors, (7652), 5440 states have internal predecessors, (7652), 0 states have call successors, (0), 0 states 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 02:44:40,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5441 states to 5441 states and 7652 transitions. [2022-10-16 02:44:40,959 INFO L78 Accepts]: Start accepts. Automaton has 5441 states and 7652 transitions. Word has length 78 [2022-10-16 02:44:40,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:40,959 INFO L495 AbstractCegarLoop]: Abstraction has 5441 states and 7652 transitions. [2022-10-16 02:44:40,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:40,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5441 states and 7652 transitions. [2022-10-16 02:44:40,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 02:44:40,962 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:40,963 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 02:44:40,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 02:44:40,963 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:40,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:40,964 INFO L85 PathProgramCache]: Analyzing trace with hash -695856466, now seen corresponding path program 1 times [2022-10-16 02:44:40,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:40,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428089002] [2022-10-16 02:44:40,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:40,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:41,136 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 02:44:41,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:41,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428089002] [2022-10-16 02:44:41,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428089002] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:41,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:41,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:44:41,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751809091] [2022-10-16 02:44:41,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:41,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:44:41,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:41,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:44:41,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:44:41,139 INFO L87 Difference]: Start difference. First operand 5441 states and 7652 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states 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 02:44:41,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:41,261 INFO L93 Difference]: Finished difference Result 9625 states and 13600 transitions. [2022-10-16 02:44:41,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:44:41,262 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 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 02:44:41,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:41,301 INFO L225 Difference]: With dead ends: 9625 [2022-10-16 02:44:41,302 INFO L226 Difference]: Without dead ends: 9625 [2022-10-16 02:44:41,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:44:41,303 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 457 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:41,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 541 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:44:41,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9625 states. [2022-10-16 02:44:41,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9625 to 6985. [2022-10-16 02:44:41,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6985 states, 6984 states have (on average 1.407216494845361) internal successors, (9828), 6984 states have internal predecessors, (9828), 0 states have call successors, (0), 0 states 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 02:44:41,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6985 states to 6985 states and 9828 transitions. [2022-10-16 02:44:41,519 INFO L78 Accepts]: Start accepts. Automaton has 6985 states and 9828 transitions. Word has length 78 [2022-10-16 02:44:41,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:41,520 INFO L495 AbstractCegarLoop]: Abstraction has 6985 states and 9828 transitions. [2022-10-16 02:44:41,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states 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 02:44:41,520 INFO L276 IsEmpty]: Start isEmpty. Operand 6985 states and 9828 transitions. [2022-10-16 02:44:41,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 02:44:41,523 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:41,523 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] [2022-10-16 02:44:41,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 02:44:41,524 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:41,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:41,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1015584653, now seen corresponding path program 1 times [2022-10-16 02:44:41,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:41,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230796885] [2022-10-16 02:44:41,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:41,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:41,718 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:44:41,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:41,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230796885] [2022-10-16 02:44:41,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230796885] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:41,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:41,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 02:44:41,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434771042] [2022-10-16 02:44:41,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:41,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:44:41,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:41,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:44:41,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:44:41,721 INFO L87 Difference]: Start difference. First operand 6985 states and 9828 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:41,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:41,874 INFO L93 Difference]: Finished difference Result 10713 states and 15152 transitions. [2022-10-16 02:44:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:44:41,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-10-16 02:44:41,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:41,907 INFO L225 Difference]: With dead ends: 10713 [2022-10-16 02:44:41,907 INFO L226 Difference]: Without dead ends: 10713 [2022-10-16 02:44:41,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:44:41,908 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 447 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:41,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 506 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:44:41,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10713 states. [2022-10-16 02:44:42,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10713 to 8073. [2022-10-16 02:44:42,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8073 states, 8072 states have (on average 1.4098116947472745) internal successors, (11380), 8072 states have internal predecessors, (11380), 0 states have call successors, (0), 0 states 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 02:44:42,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8073 states to 8073 states and 11380 transitions. [2022-10-16 02:44:42,120 INFO L78 Accepts]: Start accepts. Automaton has 8073 states and 11380 transitions. Word has length 80 [2022-10-16 02:44:42,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:42,121 INFO L495 AbstractCegarLoop]: Abstraction has 8073 states and 11380 transitions. [2022-10-16 02:44:42,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:44:42,121 INFO L276 IsEmpty]: Start isEmpty. Operand 8073 states and 11380 transitions. [2022-10-16 02:44:42,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 02:44:42,125 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:42,125 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 02:44:42,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 02:44:42,125 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:42,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:42,126 INFO L85 PathProgramCache]: Analyzing trace with hash 103810672, now seen corresponding path program 1 times [2022-10-16 02:44:42,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:42,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691919325] [2022-10-16 02:44:42,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:42,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:42,266 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:44:42,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:42,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691919325] [2022-10-16 02:44:42,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691919325] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:42,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:42,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:44:42,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590281461] [2022-10-16 02:44:42,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:42,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:44:42,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:42,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:44:42,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:44:42,269 INFO L87 Difference]: Start difference. First operand 8073 states and 11380 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 02:44:42,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:42,349 INFO L93 Difference]: Finished difference Result 6045 states and 8511 transitions. [2022-10-16 02:44:42,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:44:42,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-10-16 02:44:42,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:42,362 INFO L225 Difference]: With dead ends: 6045 [2022-10-16 02:44:42,362 INFO L226 Difference]: Without dead ends: 6045 [2022-10-16 02:44:42,364 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 02:44:42,365 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 45 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 218 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 02:44:42,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 218 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:42,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6045 states. [2022-10-16 02:44:42,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6045 to 6043. [2022-10-16 02:44:42,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6043 states, 6042 states have (on average 1.408474015226746) internal successors, (8510), 6042 states have internal predecessors, (8510), 0 states have call successors, (0), 0 states 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 02:44:42,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6043 states to 6043 states and 8510 transitions. [2022-10-16 02:44:42,495 INFO L78 Accepts]: Start accepts. Automaton has 6043 states and 8510 transitions. Word has length 80 [2022-10-16 02:44:42,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:42,495 INFO L495 AbstractCegarLoop]: Abstraction has 6043 states and 8510 transitions. [2022-10-16 02:44:42,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 02:44:42,496 INFO L276 IsEmpty]: Start isEmpty. Operand 6043 states and 8510 transitions. [2022-10-16 02:44:42,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-16 02:44:42,498 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:42,498 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] [2022-10-16 02:44:42,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 02:44:42,499 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:42,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:42,499 INFO L85 PathProgramCache]: Analyzing trace with hash 61640365, now seen corresponding path program 1 times [2022-10-16 02:44:42,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:42,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982854834] [2022-10-16 02:44:42,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:42,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:42,630 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:44:42,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:42,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982854834] [2022-10-16 02:44:42,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982854834] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:44:42,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:44:42,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:44:42,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157110518] [2022-10-16 02:44:42,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:44:42,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:44:42,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:42,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:44:42,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:44:42,634 INFO L87 Difference]: Start difference. First operand 6043 states and 8510 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 02:44:42,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:42,653 INFO L93 Difference]: Finished difference Result 3053 states and 4243 transitions. [2022-10-16 02:44:42,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:44:42,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-10-16 02:44:42,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:42,660 INFO L225 Difference]: With dead ends: 3053 [2022-10-16 02:44:42,660 INFO L226 Difference]: Without dead ends: 3053 [2022-10-16 02:44:42,661 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 02:44:42,661 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 39 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 197 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 02:44:42,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 197 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:44:42,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2022-10-16 02:44:42,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 3051. [2022-10-16 02:44:42,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3051 states, 3050 states have (on average 1.3908196721311474) internal successors, (4242), 3050 states have internal predecessors, (4242), 0 states have call successors, (0), 0 states 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 02:44:42,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 4242 transitions. [2022-10-16 02:44:42,714 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 4242 transitions. Word has length 81 [2022-10-16 02:44:42,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:42,715 INFO L495 AbstractCegarLoop]: Abstraction has 3051 states and 4242 transitions. [2022-10-16 02:44:42,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 02:44:42,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 4242 transitions. [2022-10-16 02:44:42,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-16 02:44:42,717 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:42,717 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 02:44:42,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 02:44:42,718 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:42,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:42,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1057634845, now seen corresponding path program 1 times [2022-10-16 02:44:42,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:42,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979360859] [2022-10-16 02:44:42,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:42,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:43,068 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:44:43,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:43,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979360859] [2022-10-16 02:44:43,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979360859] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:44:43,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609627660] [2022-10-16 02:44:43,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:43,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:44:43,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:44:43,074 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 02:44:43,087 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 02:44:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:43,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 02:44:43,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:44:43,559 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:44:43,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:44:43,754 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 02:44:43,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609627660] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:44:43,754 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:44:43,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 14 [2022-10-16 02:44:43,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494453452] [2022-10-16 02:44:43,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:44:43,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 02:44:43,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:43,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 02:44:43,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-10-16 02:44:43,757 INFO L87 Difference]: Start difference. First operand 3051 states and 4242 transitions. Second operand has 14 states, 14 states have (on average 16.214285714285715) internal successors, (227), 14 states have internal predecessors, (227), 0 states have call successors, (0), 0 states 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 02:44:45,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:45,567 INFO L93 Difference]: Finished difference Result 29085 states and 38404 transitions. [2022-10-16 02:44:45,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-10-16 02:44:45,568 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 16.214285714285715) internal successors, (227), 14 states have internal predecessors, (227), 0 states have call successors, (0), 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 81 [2022-10-16 02:44:45,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:45,628 INFO L225 Difference]: With dead ends: 29085 [2022-10-16 02:44:45,628 INFO L226 Difference]: Without dead ends: 29085 [2022-10-16 02:44:45,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=504, Invalid=1848, Unknown=0, NotChecked=0, Total=2352 [2022-10-16 02:44:45,630 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 1936 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1936 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:45,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1936 Valid, 857 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 02:44:45,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29085 states. [2022-10-16 02:44:46,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29085 to 21329. [2022-10-16 02:44:46,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21329 states, 21328 states have (on average 1.315078769692423) internal successors, (28048), 21328 states have internal predecessors, (28048), 0 states have call successors, (0), 0 states 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 02:44:46,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21329 states to 21329 states and 28048 transitions. [2022-10-16 02:44:46,257 INFO L78 Accepts]: Start accepts. Automaton has 21329 states and 28048 transitions. Word has length 81 [2022-10-16 02:44:46,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:46,258 INFO L495 AbstractCegarLoop]: Abstraction has 21329 states and 28048 transitions. [2022-10-16 02:44:46,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.214285714285715) internal successors, (227), 14 states have internal predecessors, (227), 0 states have call successors, (0), 0 states 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 02:44:46,258 INFO L276 IsEmpty]: Start isEmpty. Operand 21329 states and 28048 transitions. [2022-10-16 02:44:46,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 02:44:46,261 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:46,261 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 02:44:46,309 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 02:44:46,474 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,SelfDestructingSolverStorable16 [2022-10-16 02:44:46,474 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:46,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:46,475 INFO L85 PathProgramCache]: Analyzing trace with hash -326375627, now seen corresponding path program 1 times [2022-10-16 02:44:46,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:46,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442543196] [2022-10-16 02:44:46,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:46,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:46,888 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:44:46,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:46,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442543196] [2022-10-16 02:44:46,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442543196] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:44:46,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744885078] [2022-10-16 02:44:46,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:46,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:44:46,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:44:46,891 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 02:44:46,900 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 02:44:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:46,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:44:47,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:44:47,728 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:44:47,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:44:48,363 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:44:48,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744885078] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:44:48,364 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:44:48,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2022-10-16 02:44:48,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967278933] [2022-10-16 02:44:48,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:44:48,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-16 02:44:48,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:48,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-16 02:44:48,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2022-10-16 02:44:48,367 INFO L87 Difference]: Start difference. First operand 21329 states and 28048 transitions. Second operand has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states 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 02:44:49,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:44:49,713 INFO L93 Difference]: Finished difference Result 93075 states and 121113 transitions. [2022-10-16 02:44:49,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 02:44:49,713 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 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 82 [2022-10-16 02:44:49,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:44:49,924 INFO L225 Difference]: With dead ends: 93075 [2022-10-16 02:44:49,924 INFO L226 Difference]: Without dead ends: 93075 [2022-10-16 02:44:49,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=490, Invalid=1402, Unknown=0, NotChecked=0, Total=1892 [2022-10-16 02:44:49,926 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 1690 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 02:44:49,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 921 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 02:44:50,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93075 states. [2022-10-16 02:44:51,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93075 to 49443. [2022-10-16 02:44:51,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49443 states, 49442 states have (on average 1.3073298005744105) internal successors, (64637), 49442 states have internal predecessors, (64637), 0 states have call successors, (0), 0 states 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 02:44:51,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49443 states to 49443 states and 64637 transitions. [2022-10-16 02:44:51,472 INFO L78 Accepts]: Start accepts. Automaton has 49443 states and 64637 transitions. Word has length 82 [2022-10-16 02:44:51,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:44:51,472 INFO L495 AbstractCegarLoop]: Abstraction has 49443 states and 64637 transitions. [2022-10-16 02:44:51,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.826086956521739) internal successors, (180), 22 states have internal predecessors, (180), 0 states have call successors, (0), 0 states 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 02:44:51,473 INFO L276 IsEmpty]: Start isEmpty. Operand 49443 states and 64637 transitions. [2022-10-16 02:44:51,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 02:44:51,475 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:44:51,476 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] [2022-10-16 02:44:51,687 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 02:44:51,689 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,SelfDestructingSolverStorable17 [2022-10-16 02:44:51,691 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:44:51,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:44:51,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1216708857, now seen corresponding path program 1 times [2022-10-16 02:44:51,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:44:51,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453408808] [2022-10-16 02:44:51,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:51,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:44:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:52,099 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:44:52,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:44:52,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453408808] [2022-10-16 02:44:52,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453408808] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:44:52,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705351275] [2022-10-16 02:44:52,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:44:52,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:44:52,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:44:52,101 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:44:52,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 02:44:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:44:52,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 02:44:52,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:44:52,839 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:44:52,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:44:53,602 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:44:53,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705351275] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:44:53,603 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:44:53,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2022-10-16 02:44:53,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703749143] [2022-10-16 02:44:53,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:44:53,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 02:44:53,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:44:53,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 02:44:53,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=560, Unknown=0, NotChecked=0, Total=650 [2022-10-16 02:44:53,606 INFO L87 Difference]: Start difference. First operand 49443 states and 64637 transitions. Second operand has 26 states, 26 states have (on average 8.923076923076923) internal successors, (232), 25 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 02:45:15,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:15,854 INFO L93 Difference]: Finished difference Result 846610 states and 1085509 transitions. [2022-10-16 02:45:15,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 250 states. [2022-10-16 02:45:15,855 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.923076923076923) internal successors, (232), 25 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) Word has length 82 [2022-10-16 02:45:15,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:18,217 INFO L225 Difference]: With dead ends: 846610 [2022-10-16 02:45:18,217 INFO L226 Difference]: Without dead ends: 846610 [2022-10-16 02:45:18,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30788 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=9241, Invalid=65561, Unknown=0, NotChecked=0, Total=74802 [2022-10-16 02:45:18,236 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 7640 mSDsluCounter, 1915 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7640 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 2567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-16 02:45:18,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7640 Valid, 2109 Invalid, 2567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [563 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-16 02:45:18,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846610 states. [2022-10-16 02:45:26,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846610 to 269456. [2022-10-16 02:45:26,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269456 states, 269455 states have (on average 1.2964131302072703) internal successors, (349325), 269455 states have internal predecessors, (349325), 0 states have call successors, (0), 0 states 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 02:45:28,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269456 states to 269456 states and 349325 transitions. [2022-10-16 02:45:28,170 INFO L78 Accepts]: Start accepts. Automaton has 269456 states and 349325 transitions. Word has length 82 [2022-10-16 02:45:28,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:28,171 INFO L495 AbstractCegarLoop]: Abstraction has 269456 states and 349325 transitions. [2022-10-16 02:45:28,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.923076923076923) internal successors, (232), 25 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 02:45:28,171 INFO L276 IsEmpty]: Start isEmpty. Operand 269456 states and 349325 transitions. [2022-10-16 02:45:28,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 02:45:28,177 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:28,177 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 02:45:28,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 02:45:28,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:45:28,379 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:28,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:28,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1182125645, now seen corresponding path program 1 times [2022-10-16 02:45:28,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:28,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391895556] [2022-10-16 02:45:28,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:28,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:28,491 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:45:28,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:28,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391895556] [2022-10-16 02:45:28,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391895556] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:45:28,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:45:28,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:45:28,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273703149] [2022-10-16 02:45:28,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:45:28,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:45:28,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:28,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:45:28,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:45:28,495 INFO L87 Difference]: Start difference. First operand 269456 states and 349325 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 02:45:29,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:29,430 INFO L93 Difference]: Finished difference Result 158632 states and 200782 transitions. [2022-10-16 02:45:29,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:45:29,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-10-16 02:45:29,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:29,609 INFO L225 Difference]: With dead ends: 158632 [2022-10-16 02:45:29,609 INFO L226 Difference]: Without dead ends: 158632 [2022-10-16 02:45:29,609 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 02:45:29,610 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 29 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 191 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 02:45:29,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 191 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:45:30,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158632 states. [2022-10-16 02:45:31,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158632 to 158630. [2022-10-16 02:45:31,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158630 states, 158629 states have (on average 1.2657269477838227) internal successors, (200781), 158629 states have internal predecessors, (200781), 0 states have call successors, (0), 0 states 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 02:45:32,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158630 states to 158630 states and 200781 transitions. [2022-10-16 02:45:32,565 INFO L78 Accepts]: Start accepts. Automaton has 158630 states and 200781 transitions. Word has length 82 [2022-10-16 02:45:32,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:32,565 INFO L495 AbstractCegarLoop]: Abstraction has 158630 states and 200781 transitions. [2022-10-16 02:45:32,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 02:45:32,566 INFO L276 IsEmpty]: Start isEmpty. Operand 158630 states and 200781 transitions. [2022-10-16 02:45:32,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 02:45:32,571 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:32,571 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] [2022-10-16 02:45:32,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 02:45:32,572 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:32,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:32,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1936892959, now seen corresponding path program 1 times [2022-10-16 02:45:32,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:32,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103570652] [2022-10-16 02:45:32,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:32,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:32,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:32,714 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 02:45:32,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:32,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103570652] [2022-10-16 02:45:32,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103570652] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:45:32,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:45:32,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:45:32,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715702056] [2022-10-16 02:45:32,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:45:32,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:45:32,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:32,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:45:32,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:45:32,716 INFO L87 Difference]: Start difference. First operand 158630 states and 200781 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:45:33,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:33,110 INFO L93 Difference]: Finished difference Result 134383 states and 169038 transitions. [2022-10-16 02:45:33,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:45:33,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-10-16 02:45:33,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:33,710 INFO L225 Difference]: With dead ends: 134383 [2022-10-16 02:45:33,711 INFO L226 Difference]: Without dead ends: 134383 [2022-10-16 02:45:33,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:45:33,714 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 236 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:45:33,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 117 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:45:33,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134383 states. [2022-10-16 02:45:35,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134383 to 134383. [2022-10-16 02:45:35,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134383 states, 134382 states have (on average 1.2578916819216859) internal successors, (169038), 134382 states have internal predecessors, (169038), 0 states have call successors, (0), 0 states 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 02:45:35,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134383 states to 134383 states and 169038 transitions. [2022-10-16 02:45:35,462 INFO L78 Accepts]: Start accepts. Automaton has 134383 states and 169038 transitions. Word has length 82 [2022-10-16 02:45:35,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:35,462 INFO L495 AbstractCegarLoop]: Abstraction has 134383 states and 169038 transitions. [2022-10-16 02:45:35,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:45:35,462 INFO L276 IsEmpty]: Start isEmpty. Operand 134383 states and 169038 transitions. [2022-10-16 02:45:35,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 02:45:35,465 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:35,466 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 02:45:35,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 02:45:35,466 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:35,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:35,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1776308993, now seen corresponding path program 1 times [2022-10-16 02:45:35,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:35,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793434481] [2022-10-16 02:45:35,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:35,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:35,537 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:45:35,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:35,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793434481] [2022-10-16 02:45:35,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793434481] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:45:35,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23952697] [2022-10-16 02:45:35,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:35,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:45:35,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:45:35,539 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:45:35,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 02:45:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:35,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 02:45:35,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:45:35,678 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:45:35,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:45:36,164 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:45:36,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23952697] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:45:36,164 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:45:36,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2022-10-16 02:45:36,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808253886] [2022-10-16 02:45:36,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:45:36,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 02:45:36,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:36,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 02:45:36,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 02:45:36,169 INFO L87 Difference]: Start difference. First operand 134383 states and 169038 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 02:45:36,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:36,843 INFO L93 Difference]: Finished difference Result 218207 states and 273849 transitions. [2022-10-16 02:45:36,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 02:45:36,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2022-10-16 02:45:36,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:37,647 INFO L225 Difference]: With dead ends: 218207 [2022-10-16 02:45:37,647 INFO L226 Difference]: Without dead ends: 218207 [2022-10-16 02:45:37,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 164 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 02:45:37,648 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 106 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 02:45:37,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 252 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 02:45:37,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218207 states. [2022-10-16 02:45:39,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218207 to 169502. [2022-10-16 02:45:40,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169502 states, 169501 states have (on average 1.2556032117804614) internal successors, (212826), 169501 states have internal predecessors, (212826), 0 states have call successors, (0), 0 states 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 02:45:40,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169502 states to 169502 states and 212826 transitions. [2022-10-16 02:45:40,505 INFO L78 Accepts]: Start accepts. Automaton has 169502 states and 212826 transitions. Word has length 82 [2022-10-16 02:45:40,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:40,505 INFO L495 AbstractCegarLoop]: Abstraction has 169502 states and 212826 transitions. [2022-10-16 02:45:40,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 02:45:40,505 INFO L276 IsEmpty]: Start isEmpty. Operand 169502 states and 212826 transitions. [2022-10-16 02:45:40,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 02:45:40,511 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:40,511 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] [2022-10-16 02:45:40,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 02:45:40,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:45:40,724 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:40,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:40,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1518143555, now seen corresponding path program 1 times [2022-10-16 02:45:40,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:40,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205735728] [2022-10-16 02:45:40,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:40,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:40,860 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 02:45:40,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:40,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205735728] [2022-10-16 02:45:40,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205735728] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:45:40,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:45:40,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:45:40,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545466600] [2022-10-16 02:45:40,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:45:40,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:45:40,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:40,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:45:40,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:45:40,864 INFO L87 Difference]: Start difference. First operand 169502 states and 212826 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:45:41,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:41,727 INFO L93 Difference]: Finished difference Result 111424 states and 138265 transitions. [2022-10-16 02:45:41,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:45:41,731 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-10-16 02:45:41,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:41,966 INFO L225 Difference]: With dead ends: 111424 [2022-10-16 02:45:41,966 INFO L226 Difference]: Without dead ends: 111424 [2022-10-16 02:45:41,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:45:41,967 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 253 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:45:41,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 123 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:45:42,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111424 states. [2022-10-16 02:45:43,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111424 to 111424. [2022-10-16 02:45:43,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111424 states, 111423 states have (on average 1.2409017886791776) internal successors, (138265), 111423 states have internal predecessors, (138265), 0 states have call successors, (0), 0 states 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 02:45:43,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111424 states to 111424 states and 138265 transitions. [2022-10-16 02:45:43,757 INFO L78 Accepts]: Start accepts. Automaton has 111424 states and 138265 transitions. Word has length 82 [2022-10-16 02:45:43,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:43,758 INFO L495 AbstractCegarLoop]: Abstraction has 111424 states and 138265 transitions. [2022-10-16 02:45:43,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:45:43,758 INFO L276 IsEmpty]: Start isEmpty. Operand 111424 states and 138265 transitions. [2022-10-16 02:45:43,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 02:45:43,779 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:43,779 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] [2022-10-16 02:45:43,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-10-16 02:45:43,779 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:43,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:43,780 INFO L85 PathProgramCache]: Analyzing trace with hash -111489729, now seen corresponding path program 1 times [2022-10-16 02:45:43,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:43,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551089069] [2022-10-16 02:45:43,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:43,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:43,885 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 02:45:43,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:43,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551089069] [2022-10-16 02:45:43,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551089069] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:45:43,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:45:43,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:45:43,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575225530] [2022-10-16 02:45:43,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:45:43,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:45:43,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:43,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:45:43,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:45:43,889 INFO L87 Difference]: Start difference. First operand 111424 states and 138265 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states 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 02:45:44,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:44,195 INFO L93 Difference]: Finished difference Result 85681 states and 105735 transitions. [2022-10-16 02:45:44,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:45:44,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 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 82 [2022-10-16 02:45:44,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:44,318 INFO L225 Difference]: With dead ends: 85681 [2022-10-16 02:45:44,319 INFO L226 Difference]: Without dead ends: 85681 [2022-10-16 02:45:44,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:45:44,320 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 336 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:45:44,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 103 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:45:44,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85681 states. [2022-10-16 02:45:45,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85681 to 85681. [2022-10-16 02:45:45,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85681 states, 85680 states have (on average 1.2340686274509804) internal successors, (105735), 85680 states have internal predecessors, (105735), 0 states have call successors, (0), 0 states 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 02:45:45,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85681 states to 85681 states and 105735 transitions. [2022-10-16 02:45:45,995 INFO L78 Accepts]: Start accepts. Automaton has 85681 states and 105735 transitions. Word has length 82 [2022-10-16 02:45:45,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:45,995 INFO L495 AbstractCegarLoop]: Abstraction has 85681 states and 105735 transitions. [2022-10-16 02:45:45,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states 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 02:45:45,996 INFO L276 IsEmpty]: Start isEmpty. Operand 85681 states and 105735 transitions. [2022-10-16 02:45:45,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 02:45:45,999 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:45,999 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] [2022-10-16 02:45:45,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 02:45:46,000 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:46,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:46,000 INFO L85 PathProgramCache]: Analyzing trace with hash -413866414, now seen corresponding path program 1 times [2022-10-16 02:45:46,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:46,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299868347] [2022-10-16 02:45:46,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:46,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:46,102 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 02:45:46,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:46,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299868347] [2022-10-16 02:45:46,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299868347] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:45:46,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:45:46,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 02:45:46,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357872292] [2022-10-16 02:45:46,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:45:46,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 02:45:46,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:46,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 02:45:46,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 02:45:46,105 INFO L87 Difference]: Start difference. First operand 85681 states and 105735 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 02:45:46,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:46,265 INFO L93 Difference]: Finished difference Result 49138 states and 59085 transitions. [2022-10-16 02:45:46,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 02:45:46,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-10-16 02:45:46,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:46,338 INFO L225 Difference]: With dead ends: 49138 [2022-10-16 02:45:46,339 INFO L226 Difference]: Without dead ends: 49138 [2022-10-16 02:45:46,339 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 02:45:46,340 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 23 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 171 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 02:45:46,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 171 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:45:46,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49138 states. [2022-10-16 02:45:47,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49138 to 49136. [2022-10-16 02:45:47,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49136 states, 49135 states have (on average 1.202482955123639) internal successors, (59084), 49135 states have internal predecessors, (59084), 0 states have call successors, (0), 0 states 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 02:45:47,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49136 states to 49136 states and 59084 transitions. [2022-10-16 02:45:47,440 INFO L78 Accepts]: Start accepts. Automaton has 49136 states and 59084 transitions. Word has length 83 [2022-10-16 02:45:47,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:47,440 INFO L495 AbstractCegarLoop]: Abstraction has 49136 states and 59084 transitions. [2022-10-16 02:45:47,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states 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 02:45:47,440 INFO L276 IsEmpty]: Start isEmpty. Operand 49136 states and 59084 transitions. [2022-10-16 02:45:47,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 02:45:47,443 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:47,443 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] [2022-10-16 02:45:47,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-10-16 02:45:47,443 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:47,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:47,444 INFO L85 PathProgramCache]: Analyzing trace with hash -971366630, now seen corresponding path program 1 times [2022-10-16 02:45:47,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:47,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900110738] [2022-10-16 02:45:47,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:47,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:47,544 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 02:45:47,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:47,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900110738] [2022-10-16 02:45:47,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900110738] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 02:45:47,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 02:45:47,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 02:45:47,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698665947] [2022-10-16 02:45:47,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 02:45:47,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 02:45:47,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:47,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 02:45:47,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 02:45:47,546 INFO L87 Difference]: Start difference. First operand 49136 states and 59084 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 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 02:45:47,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:47,701 INFO L93 Difference]: Finished difference Result 38130 states and 45330 transitions. [2022-10-16 02:45:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 02:45:47,702 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 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 83 [2022-10-16 02:45:47,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:47,744 INFO L225 Difference]: With dead ends: 38130 [2022-10-16 02:45:47,744 INFO L226 Difference]: Without dead ends: 38130 [2022-10-16 02:45:47,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 02:45:47,745 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 297 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:45:47,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 98 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 02:45:47,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38130 states. [2022-10-16 02:45:48,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38130 to 38130. [2022-10-16 02:45:48,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38130 states, 38129 states have (on average 1.1888588738230743) internal successors, (45330), 38129 states have internal predecessors, (45330), 0 states have call successors, (0), 0 states 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 02:45:48,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38130 states to 38130 states and 45330 transitions. [2022-10-16 02:45:48,418 INFO L78 Accepts]: Start accepts. Automaton has 38130 states and 45330 transitions. Word has length 83 [2022-10-16 02:45:48,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:48,418 INFO L495 AbstractCegarLoop]: Abstraction has 38130 states and 45330 transitions. [2022-10-16 02:45:48,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 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 02:45:48,418 INFO L276 IsEmpty]: Start isEmpty. Operand 38130 states and 45330 transitions. [2022-10-16 02:45:48,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-16 02:45:48,420 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:48,420 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] [2022-10-16 02:45:48,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-10-16 02:45:48,421 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:48,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:48,421 INFO L85 PathProgramCache]: Analyzing trace with hash -812578338, now seen corresponding path program 1 times [2022-10-16 02:45:48,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:48,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869537019] [2022-10-16 02:45:48,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:48,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:49,182 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:45:49,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:49,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869537019] [2022-10-16 02:45:49,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869537019] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:45:49,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520732752] [2022-10-16 02:45:49,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:49,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:45:49,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:45:49,186 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:45:49,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 02:45:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:49,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 02:45:49,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:45:51,172 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:45:51,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:45:52,580 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:45:52,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520732752] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:45:52,580 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:45:52,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 30 [2022-10-16 02:45:52,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658178336] [2022-10-16 02:45:52,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:45:52,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-16 02:45:52,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:52,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-16 02:45:52,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=764, Unknown=0, NotChecked=0, Total=870 [2022-10-16 02:45:52,583 INFO L87 Difference]: Start difference. First operand 38130 states and 45330 transitions. Second operand has 30 states, 30 states have (on average 6.766666666666667) internal successors, (203), 30 states have internal predecessors, (203), 0 states have call successors, (0), 0 states 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 02:45:54,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:45:54,293 INFO L93 Difference]: Finished difference Result 59035 states and 71397 transitions. [2022-10-16 02:45:54,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 02:45:54,293 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 6.766666666666667) internal successors, (203), 30 states have internal predecessors, (203), 0 states have call successors, (0), 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 84 [2022-10-16 02:45:54,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:45:54,352 INFO L225 Difference]: With dead ends: 59035 [2022-10-16 02:45:54,353 INFO L226 Difference]: Without dead ends: 59035 [2022-10-16 02:45:54,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 151 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=383, Invalid=1597, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 02:45:54,354 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 1872 mSDsluCounter, 1808 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 1972 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:45:54,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1872 Valid, 1972 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 02:45:54,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59035 states. [2022-10-16 02:45:54,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59035 to 33723. [2022-10-16 02:45:54,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33723 states, 33722 states have (on average 1.1831741889567642) internal successors, (39899), 33722 states have internal predecessors, (39899), 0 states have call successors, (0), 0 states 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 02:45:54,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33723 states to 33723 states and 39899 transitions. [2022-10-16 02:45:54,864 INFO L78 Accepts]: Start accepts. Automaton has 33723 states and 39899 transitions. Word has length 84 [2022-10-16 02:45:54,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:45:54,864 INFO L495 AbstractCegarLoop]: Abstraction has 33723 states and 39899 transitions. [2022-10-16 02:45:54,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 6.766666666666667) internal successors, (203), 30 states have internal predecessors, (203), 0 states have call successors, (0), 0 states 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 02:45:54,864 INFO L276 IsEmpty]: Start isEmpty. Operand 33723 states and 39899 transitions. [2022-10-16 02:45:54,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-16 02:45:54,865 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:45:54,865 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] [2022-10-16 02:45:54,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 02:45:55,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 02:45:55,067 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:45:55,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:45:55,068 INFO L85 PathProgramCache]: Analyzing trace with hash 838107134, now seen corresponding path program 1 times [2022-10-16 02:45:55,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:45:55,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350911344] [2022-10-16 02:45:55,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:55,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:45:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:55,895 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:45:55,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:45:55,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350911344] [2022-10-16 02:45:55,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350911344] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:45:55,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874389238] [2022-10-16 02:45:55,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:45:55,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:45:55,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:45:55,898 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:45:55,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 02:45:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:45:55,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 02:45:56,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:45:57,637 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:45:57,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:45:58,872 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:45:58,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874389238] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:45:58,873 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:45:58,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 33 [2022-10-16 02:45:58,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040641032] [2022-10-16 02:45:58,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:45:58,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 02:45:58,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:45:58,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 02:45:58,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=931, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 02:45:58,875 INFO L87 Difference]: Start difference. First operand 33723 states and 39899 transitions. Second operand has 33 states, 33 states have (on average 6.96969696969697) internal successors, (230), 33 states have internal predecessors, (230), 0 states have call successors, (0), 0 states 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 02:46:01,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:46:01,248 INFO L93 Difference]: Finished difference Result 60047 states and 69343 transitions. [2022-10-16 02:46:01,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 02:46:01,248 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 6.96969696969697) internal successors, (230), 33 states have internal predecessors, (230), 0 states have call successors, (0), 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 84 [2022-10-16 02:46:01,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:46:01,333 INFO L225 Difference]: With dead ends: 60047 [2022-10-16 02:46:01,333 INFO L226 Difference]: Without dead ends: 60047 [2022-10-16 02:46:01,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 148 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=559, Invalid=2093, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 02:46:01,334 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 1551 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:46:01,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1551 Valid, 2155 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 02:46:01,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60047 states. [2022-10-16 02:46:01,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60047 to 29727. [2022-10-16 02:46:01,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29727 states, 29726 states have (on average 1.1817600753549082) internal successors, (35129), 29726 states have internal predecessors, (35129), 0 states have call successors, (0), 0 states 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 02:46:01,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29727 states to 29727 states and 35129 transitions. [2022-10-16 02:46:01,880 INFO L78 Accepts]: Start accepts. Automaton has 29727 states and 35129 transitions. Word has length 84 [2022-10-16 02:46:01,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:46:01,880 INFO L495 AbstractCegarLoop]: Abstraction has 29727 states and 35129 transitions. [2022-10-16 02:46:01,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 6.96969696969697) internal successors, (230), 33 states have internal predecessors, (230), 0 states have call successors, (0), 0 states 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 02:46:01,881 INFO L276 IsEmpty]: Start isEmpty. Operand 29727 states and 35129 transitions. [2022-10-16 02:46:01,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-16 02:46:01,882 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:46:01,882 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] [2022-10-16 02:46:01,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 02:46:02,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 02:46:02,083 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:46:02,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:46:02,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1024205244, now seen corresponding path program 1 times [2022-10-16 02:46:02,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:46:02,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808527974] [2022-10-16 02:46:02,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:46:02,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:46:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:46:04,071 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:46:04,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:46:04,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808527974] [2022-10-16 02:46:04,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808527974] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:46:04,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303381902] [2022-10-16 02:46:04,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:46:04,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:46:04,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:46:04,073 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:46:04,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 02:46:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:46:04,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 51 conjunts are in the unsatisfiable core [2022-10-16 02:46:04,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:46:10,911 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:46:10,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:46:20,725 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:46:20,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303381902] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:46:20,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:46:20,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 31] total 83 [2022-10-16 02:46:20,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030887501] [2022-10-16 02:46:20,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:46:20,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-10-16 02:46:20,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:46:20,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-10-16 02:46:20,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=644, Invalid=6162, Unknown=0, NotChecked=0, Total=6806 [2022-10-16 02:46:20,729 INFO L87 Difference]: Start difference. First operand 29727 states and 35129 transitions. Second operand has 83 states, 83 states have (on average 2.8433734939759034) internal successors, (236), 83 states have internal predecessors, (236), 0 states have call successors, (0), 0 states 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 02:47:45,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:47:45,294 INFO L93 Difference]: Finished difference Result 89172 states and 103216 transitions. [2022-10-16 02:47:45,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2022-10-16 02:47:45,295 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 83 states have (on average 2.8433734939759034) internal successors, (236), 83 states have internal predecessors, (236), 0 states have call successors, (0), 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 84 [2022-10-16 02:47:45,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:47:45,388 INFO L225 Difference]: With dead ends: 89172 [2022-10-16 02:47:45,388 INFO L226 Difference]: Without dead ends: 89172 [2022-10-16 02:47:45,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 293 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30021 ImplicationChecksByTransitivity, 85.0s TimeCoverageRelationStatistics Valid=9912, Invalid=76818, Unknown=0, NotChecked=0, Total=86730 [2022-10-16 02:47:45,402 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 4063 mSDsluCounter, 11220 mSDsCounter, 0 mSdLazyCounter, 4976 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4063 SdHoareTripleChecker+Valid, 11501 SdHoareTripleChecker+Invalid, 5432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 4976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-10-16 02:47:45,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4063 Valid, 11501 Invalid, 5432 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [456 Valid, 4976 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-10-16 02:47:45,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89172 states. [2022-10-16 02:47:45,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89172 to 35952. [2022-10-16 02:47:45,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35952 states, 35951 states have (on average 1.1848905454646603) internal successors, (42598), 35951 states have internal predecessors, (42598), 0 states have call successors, (0), 0 states 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 02:47:45,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35952 states to 35952 states and 42598 transitions. [2022-10-16 02:47:45,945 INFO L78 Accepts]: Start accepts. Automaton has 35952 states and 42598 transitions. Word has length 84 [2022-10-16 02:47:45,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:47:45,946 INFO L495 AbstractCegarLoop]: Abstraction has 35952 states and 42598 transitions. [2022-10-16 02:47:45,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 2.8433734939759034) internal successors, (236), 83 states have internal predecessors, (236), 0 states have call successors, (0), 0 states 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 02:47:45,946 INFO L276 IsEmpty]: Start isEmpty. Operand 35952 states and 42598 transitions. [2022-10-16 02:47:45,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-16 02:47:45,947 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:47:45,947 INFO L195 NwaCegarLoop]: trace histogram [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 02:47:45,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 02:47:46,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:47:46,155 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:47:46,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:47:46,156 INFO L85 PathProgramCache]: Analyzing trace with hash 167190423, now seen corresponding path program 1 times [2022-10-16 02:47:46,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:47:46,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738853567] [2022-10-16 02:47:46,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:47:46,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:47:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:47:47,259 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:47:47,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:47:47,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738853567] [2022-10-16 02:47:47,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738853567] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:47:47,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683926642] [2022-10-16 02:47:47,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:47:47,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:47:47,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:47:47,262 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:47:47,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 02:47:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:47:47,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 02:47:47,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:47:48,482 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:47:48,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:47:49,460 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:47:49,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683926642] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:47:49,460 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:47:49,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 29 [2022-10-16 02:47:49,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902521354] [2022-10-16 02:47:49,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:47:49,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-10-16 02:47:49,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:47:49,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-10-16 02:47:49,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=699, Unknown=0, NotChecked=0, Total=812 [2022-10-16 02:47:49,462 INFO L87 Difference]: Start difference. First operand 35952 states and 42598 transitions. Second operand has 29 states, 29 states have (on average 7.448275862068965) internal successors, (216), 29 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:47:51,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:47:51,148 INFO L93 Difference]: Finished difference Result 43874 states and 51533 transitions. [2022-10-16 02:47:51,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 02:47:51,149 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 7.448275862068965) internal successors, (216), 29 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-10-16 02:47:51,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:47:51,187 INFO L225 Difference]: With dead ends: 43874 [2022-10-16 02:47:51,187 INFO L226 Difference]: Without dead ends: 43874 [2022-10-16 02:47:51,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 154 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=413, Invalid=1479, Unknown=0, NotChecked=0, Total=1892 [2022-10-16 02:47:51,188 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 746 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 02:47:51,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 2770 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 02:47:51,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43874 states. [2022-10-16 02:47:51,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43874 to 26473. [2022-10-16 02:47:51,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26473 states, 26472 states have (on average 1.1832502266545784) internal successors, (31323), 26472 states have internal predecessors, (31323), 0 states have call successors, (0), 0 states 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 02:47:51,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26473 states to 26473 states and 31323 transitions. [2022-10-16 02:47:51,728 INFO L78 Accepts]: Start accepts. Automaton has 26473 states and 31323 transitions. Word has length 86 [2022-10-16 02:47:51,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:47:51,728 INFO L495 AbstractCegarLoop]: Abstraction has 26473 states and 31323 transitions. [2022-10-16 02:47:51,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 7.448275862068965) internal successors, (216), 29 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:47:51,729 INFO L276 IsEmpty]: Start isEmpty. Operand 26473 states and 31323 transitions. [2022-10-16 02:47:51,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-10-16 02:47:51,729 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:47:51,729 INFO L195 NwaCegarLoop]: trace histogram [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 02:47:51,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-10-16 02:47:51,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:47:51,936 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:47:51,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:47:51,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1058410508, now seen corresponding path program 1 times [2022-10-16 02:47:51,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:47:51,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776519794] [2022-10-16 02:47:51,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:47:51,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:47:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:47:52,968 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:47:52,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:47:52,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776519794] [2022-10-16 02:47:52,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776519794] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:47:52,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36337393] [2022-10-16 02:47:52,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:47:52,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:47:52,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:47:52,971 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:47:52,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 02:47:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:47:53,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 02:47:53,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:47:54,322 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:47:54,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 02:47:55,630 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:47:55,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36337393] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 02:47:55,630 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 02:47:55,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 13] total 39 [2022-10-16 02:47:55,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388030252] [2022-10-16 02:47:55,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 02:47:55,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-10-16 02:47:55,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 02:47:55,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-10-16 02:47:55,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1336, Unknown=0, NotChecked=0, Total=1482 [2022-10-16 02:47:55,632 INFO L87 Difference]: Start difference. First operand 26473 states and 31323 transitions. Second operand has 39 states, 39 states have (on average 5.717948717948718) internal successors, (223), 39 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:47:59,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 02:47:59,296 INFO L93 Difference]: Finished difference Result 66014 states and 79837 transitions. [2022-10-16 02:47:59,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-16 02:47:59,296 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 5.717948717948718) internal successors, (223), 39 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-10-16 02:47:59,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 02:47:59,374 INFO L225 Difference]: With dead ends: 66014 [2022-10-16 02:47:59,374 INFO L226 Difference]: Without dead ends: 66014 [2022-10-16 02:47:59,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1216 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=973, Invalid=4139, Unknown=0, NotChecked=0, Total=5112 [2022-10-16 02:47:59,376 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 2809 mSDsluCounter, 3783 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2809 SdHoareTripleChecker+Valid, 3986 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 02:47:59,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2809 Valid, 3986 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 02:47:59,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66014 states. [2022-10-16 02:47:59,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66014 to 20604. [2022-10-16 02:47:59,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20604 states, 20603 states have (on average 1.1844391593457264) internal successors, (24403), 20603 states have internal predecessors, (24403), 0 states have call successors, (0), 0 states 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 02:48:00,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20604 states to 20604 states and 24403 transitions. [2022-10-16 02:48:00,018 INFO L78 Accepts]: Start accepts. Automaton has 20604 states and 24403 transitions. Word has length 86 [2022-10-16 02:48:00,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 02:48:00,019 INFO L495 AbstractCegarLoop]: Abstraction has 20604 states and 24403 transitions. [2022-10-16 02:48:00,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.717948717948718) internal successors, (223), 39 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 02:48:00,019 INFO L276 IsEmpty]: Start isEmpty. Operand 20604 states and 24403 transitions. [2022-10-16 02:48:00,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-10-16 02:48:00,023 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 02:48:00,023 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:48:00,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 02:48:00,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:48:00,230 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-10-16 02:48:00,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 02:48:00,231 INFO L85 PathProgramCache]: Analyzing trace with hash -299805, now seen corresponding path program 1 times [2022-10-16 02:48:00,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 02:48:00,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375114068] [2022-10-16 02:48:00,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:00,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 02:48:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:01,041 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 48 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:01,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 02:48:01,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375114068] [2022-10-16 02:48:01,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375114068] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 02:48:01,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523304461] [2022-10-16 02:48:01,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 02:48:01,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 02:48:01,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 02:48:01,045 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 02:48:01,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 02:48:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 02:48:01,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-16 02:48:01,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 02:48:11,945 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 54 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 02:48:11,945 INFO L328 TraceCheckSpWp]: Computing backward predicates...