/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 02:29:01,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 02:29:01,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 02:29:01,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 02:29:01,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 02:29:01,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 02:29:01,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 02:29:01,976 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 02:29:02,003 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 02:29:02,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 02:29:02,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 02:29:02,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 02:29:02,004 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 02:29:02,004 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 02:29:02,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 02:29:02,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 02:29:02,005 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 02:29:02,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 02:29:02,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 02:29:02,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 02:29:02,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 02:29:02,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 02:29:02,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 02:29:02,006 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 02:29:02,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 02:29:02,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 02:29:02,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 02:29:02,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 02:29:02,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 02:29:02,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:29:02,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 02:29:02,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 02:29:02,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 02:29:02,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 02:29:02,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 02:29:02,008 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 02:29:02,008 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 02:29:02,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 02:29:02,008 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 02:29:02,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 02:29:02,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 02:29:02,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 02:29:02,180 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 02:29:02,181 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 02:29:02,181 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c [2022-01-10 02:29:02,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3b7486b2/5cf509cd94144cacb51080189eea2e54/FLAGcf73d9475 [2022-01-10 02:29:02,847 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 02:29:02,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c [2022-01-10 02:29:02,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3b7486b2/5cf509cd94144cacb51080189eea2e54/FLAGcf73d9475 [2022-01-10 02:29:03,253 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3b7486b2/5cf509cd94144cacb51080189eea2e54 [2022-01-10 02:29:03,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 02:29:03,258 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 02:29:03,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 02:29:03,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 02:29:03,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 02:29:03,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:29:03" (1/1) ... [2022-01-10 02:29:03,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3297d04e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:29:03, skipping insertion in model container [2022-01-10 02:29:03,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:29:03" (1/1) ... [2022-01-10 02:29:03,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 02:29:03,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 02:29:03,818 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c[26860,26873] [2022-01-10 02:29:03,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c[28735,28748] [2022-01-10 02:29:04,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:29:04,355 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 02:29:04,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c[26860,26873] [2022-01-10 02:29:04,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c[28735,28748] [2022-01-10 02:29:04,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:29:04,727 INFO L208 MainTranslator]: Completed translation [2022-01-10 02:29:04,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:29:04 WrapperNode [2022-01-10 02:29:04,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 02:29:04,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 02:29:04,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 02:29:04,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 02:29:04,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:29:04" (1/1) ... [2022-01-10 02:29:04,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:29:04" (1/1) ... [2022-01-10 02:29:05,050 INFO L137 Inliner]: procedures = 39, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5281 [2022-01-10 02:29:05,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 02:29:05,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 02:29:05,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 02:29:05,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 02:29:05,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:29:04" (1/1) ... [2022-01-10 02:29:05,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:29:04" (1/1) ... [2022-01-10 02:29:05,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:29:04" (1/1) ... [2022-01-10 02:29:05,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:29:04" (1/1) ... [2022-01-10 02:29:05,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:29:04" (1/1) ... [2022-01-10 02:29:05,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:29:04" (1/1) ... [2022-01-10 02:29:05,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:29:04" (1/1) ... [2022-01-10 02:29:05,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 02:29:05,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 02:29:05,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 02:29:05,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 02:29:05,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:29:04" (1/1) ... [2022-01-10 02:29:05,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:29:05,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 02:29:05,393 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) [2022-01-10 02:29:05,406 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 [2022-01-10 02:29:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 02:29:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 02:29:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 02:29:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 02:29:05,535 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 02:29:05,536 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 02:29:08,390 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 02:29:08,404 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 02:29:08,404 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 02:29:08,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:29:08 BoogieIcfgContainer [2022-01-10 02:29:08,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 02:29:08,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 02:29:08,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 02:29:08,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 02:29:08,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:29:03" (1/3) ... [2022-01-10 02:29:08,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d4ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:29:08, skipping insertion in model container [2022-01-10 02:29:08,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:29:04" (2/3) ... [2022-01-10 02:29:08,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d4ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:29:08, skipping insertion in model container [2022-01-10 02:29:08,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:29:08" (3/3) ... [2022-01-10 02:29:08,412 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c [2022-01-10 02:29:08,415 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 02:29:08,415 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 02:29:08,447 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 02:29:08,452 INFO L339 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 02:29:08,452 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 02:29:08,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 963 states, 960 states have (on average 1.896875) internal successors, (1821), 962 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:08,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 02:29:08,476 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:08,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:29:08,477 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:08,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:08,481 INFO L85 PathProgramCache]: Analyzing trace with hash -242791467, now seen corresponding path program 1 times [2022-01-10 02:29:08,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:08,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913347700] [2022-01-10 02:29:08,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:08,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:08,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:29:08,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:08,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913347700] [2022-01-10 02:29:08,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913347700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:08,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:08,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 02:29:08,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656326987] [2022-01-10 02:29:08,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:08,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 02:29:08,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:08,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 02:29:08,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 02:29:08,663 INFO L87 Difference]: Start difference. First operand has 963 states, 960 states have (on average 1.896875) internal successors, (1821), 962 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:10,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:29:10,989 INFO L93 Difference]: Finished difference Result 2614 states and 5014 transitions. [2022-01-10 02:29:10,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 02:29:10,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-01-10 02:29:10,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:29:11,016 INFO L225 Difference]: With dead ends: 2614 [2022-01-10 02:29:11,016 INFO L226 Difference]: Without dead ends: 1648 [2022-01-10 02:29:11,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 02:29:11,027 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1134 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 3208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-10 02:29:11,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 410 Invalid, 3208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-10 02:29:11,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2022-01-10 02:29:11,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1648. [2022-01-10 02:29:11,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1646 states have (on average 1.839003645200486) internal successors, (3027), 1647 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:11,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 3027 transitions. [2022-01-10 02:29:11,126 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 3027 transitions. Word has length 16 [2022-01-10 02:29:11,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:29:11,126 INFO L470 AbstractCegarLoop]: Abstraction has 1648 states and 3027 transitions. [2022-01-10 02:29:11,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:11,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 3027 transitions. [2022-01-10 02:29:11,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 02:29:11,129 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:11,129 INFO L514 BasicCegarLoop]: 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] [2022-01-10 02:29:11,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 02:29:11,129 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:11,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:11,131 INFO L85 PathProgramCache]: Analyzing trace with hash 815979124, now seen corresponding path program 1 times [2022-01-10 02:29:11,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:11,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209388348] [2022-01-10 02:29:11,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:11,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:11,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:29:11,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:11,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209388348] [2022-01-10 02:29:11,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209388348] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:11,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:11,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 02:29:11,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771327285] [2022-01-10 02:29:11,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:11,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 02:29:11,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:11,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 02:29:11,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 02:29:11,281 INFO L87 Difference]: Start difference. First operand 1648 states and 3027 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:11,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:29:11,351 INFO L93 Difference]: Finished difference Result 1728 states and 3152 transitions. [2022-01-10 02:29:11,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 02:29:11,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2022-01-10 02:29:11,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:29:11,357 INFO L225 Difference]: With dead ends: 1728 [2022-01-10 02:29:11,357 INFO L226 Difference]: Without dead ends: 1648 [2022-01-10 02:29:11,360 INFO L932 BasicCegarLoop]: 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 [2022-01-10 02:29:11,361 INFO L933 BasicCegarLoop]: 1686 mSDtfsCounter, 3 mSDsluCounter, 4994 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6680 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 02:29:11,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 6680 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 02:29:11,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2022-01-10 02:29:11,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1648. [2022-01-10 02:29:11,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1648 states, 1646 states have (on average 1.801944106925881) internal successors, (2966), 1647 states have internal predecessors, (2966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:11,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1648 states to 1648 states and 2966 transitions. [2022-01-10 02:29:11,389 INFO L78 Accepts]: Start accepts. Automaton has 1648 states and 2966 transitions. Word has length 46 [2022-01-10 02:29:11,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:29:11,389 INFO L470 AbstractCegarLoop]: Abstraction has 1648 states and 2966 transitions. [2022-01-10 02:29:11,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:11,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1648 states and 2966 transitions. [2022-01-10 02:29:11,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-10 02:29:11,395 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:11,396 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:29:11,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 02:29:11,396 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:11,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:11,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1579898040, now seen corresponding path program 1 times [2022-01-10 02:29:11,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:11,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450943355] [2022-01-10 02:29:11,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:11,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:29:11,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:11,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450943355] [2022-01-10 02:29:11,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450943355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:11,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:11,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 02:29:11,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045834209] [2022-01-10 02:29:11,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:11,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 02:29:11,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:11,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 02:29:11,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 02:29:11,539 INFO L87 Difference]: Start difference. First operand 1648 states and 2966 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:16,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:29:16,299 INFO L93 Difference]: Finished difference Result 5405 states and 9856 transitions. [2022-01-10 02:29:16,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 02:29:16,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-01-10 02:29:16,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:29:16,312 INFO L225 Difference]: With dead ends: 5405 [2022-01-10 02:29:16,312 INFO L226 Difference]: Without dead ends: 3901 [2022-01-10 02:29:16,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 02:29:16,319 INFO L933 BasicCegarLoop]: 881 mSDtfsCounter, 2546 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5154 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2546 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 6307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-01-10 02:29:16,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2546 Valid, 899 Invalid, 6307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5154 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-01-10 02:29:16,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3901 states. [2022-01-10 02:29:16,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3901 to 3901. [2022-01-10 02:29:16,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3901 states, 3899 states have (on average 1.5632213388048217) internal successors, (6095), 3900 states have internal predecessors, (6095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:16,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3901 states to 3901 states and 6095 transitions. [2022-01-10 02:29:16,369 INFO L78 Accepts]: Start accepts. Automaton has 3901 states and 6095 transitions. Word has length 85 [2022-01-10 02:29:16,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:29:16,369 INFO L470 AbstractCegarLoop]: Abstraction has 3901 states and 6095 transitions. [2022-01-10 02:29:16,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:16,370 INFO L276 IsEmpty]: Start isEmpty. Operand 3901 states and 6095 transitions. [2022-01-10 02:29:16,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-10 02:29:16,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:16,372 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:29:16,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 02:29:16,372 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:16,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:16,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1817535011, now seen corresponding path program 1 times [2022-01-10 02:29:16,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:16,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8638179] [2022-01-10 02:29:16,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:16,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:16,459 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:29:16,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:16,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8638179] [2022-01-10 02:29:16,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8638179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:16,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:16,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 02:29:16,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742195507] [2022-01-10 02:29:16,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:16,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 02:29:16,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:16,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 02:29:16,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 02:29:16,461 INFO L87 Difference]: Start difference. First operand 3901 states and 6095 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:18,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:29:18,992 INFO L93 Difference]: Finished difference Result 10662 states and 17147 transitions. [2022-01-10 02:29:18,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 02:29:18,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2022-01-10 02:29:18,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:29:19,012 INFO L225 Difference]: With dead ends: 10662 [2022-01-10 02:29:19,012 INFO L226 Difference]: Without dead ends: 6905 [2022-01-10 02:29:19,017 INFO L932 BasicCegarLoop]: 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 [2022-01-10 02:29:19,018 INFO L933 BasicCegarLoop]: 1158 mSDtfsCounter, 775 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 3065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 746 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-10 02:29:19,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [775 Valid, 1354 Invalid, 3065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [746 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-01-10 02:29:19,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6905 states. [2022-01-10 02:29:19,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6905 to 6905. [2022-01-10 02:29:19,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6905 states, 6903 states have (on average 1.5319426336375488) internal successors, (10575), 6904 states have internal predecessors, (10575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:19,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6905 states to 6905 states and 10575 transitions. [2022-01-10 02:29:19,101 INFO L78 Accepts]: Start accepts. Automaton has 6905 states and 10575 transitions. Word has length 87 [2022-01-10 02:29:19,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:29:19,101 INFO L470 AbstractCegarLoop]: Abstraction has 6905 states and 10575 transitions. [2022-01-10 02:29:19,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:19,102 INFO L276 IsEmpty]: Start isEmpty. Operand 6905 states and 10575 transitions. [2022-01-10 02:29:19,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 02:29:19,102 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:19,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:29:19,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 02:29:19,103 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:19,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:19,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1090783836, now seen corresponding path program 1 times [2022-01-10 02:29:19,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:19,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895109172] [2022-01-10 02:29:19,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:19,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:19,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:29:19,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:19,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895109172] [2022-01-10 02:29:19,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895109172] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:19,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:19,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 02:29:19,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529244339] [2022-01-10 02:29:19,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:19,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 02:29:19,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:19,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 02:29:19,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 02:29:19,187 INFO L87 Difference]: Start difference. First operand 6905 states and 10575 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:19,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:29:19,220 INFO L93 Difference]: Finished difference Result 7051 states and 10807 transitions. [2022-01-10 02:29:19,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 02:29:19,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-10 02:29:19,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:29:19,237 INFO L225 Difference]: With dead ends: 7051 [2022-01-10 02:29:19,237 INFO L226 Difference]: Without dead ends: 6975 [2022-01-10 02:29:19,239 INFO L932 BasicCegarLoop]: 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 [2022-01-10 02:29:19,239 INFO L933 BasicCegarLoop]: 1734 mSDtfsCounter, 1550 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 1853 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 [2022-01-10 02:29:19,239 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1550 Valid, 1853 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 02:29:19,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6975 states. [2022-01-10 02:29:19,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6975 to 6973. [2022-01-10 02:29:19,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6973 states, 6971 states have (on average 1.53263520298379) internal successors, (10684), 6972 states have internal predecessors, (10684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:19,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6973 states to 6973 states and 10684 transitions. [2022-01-10 02:29:19,333 INFO L78 Accepts]: Start accepts. Automaton has 6973 states and 10684 transitions. Word has length 106 [2022-01-10 02:29:19,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:29:19,333 INFO L470 AbstractCegarLoop]: Abstraction has 6973 states and 10684 transitions. [2022-01-10 02:29:19,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:19,334 INFO L276 IsEmpty]: Start isEmpty. Operand 6973 states and 10684 transitions. [2022-01-10 02:29:19,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 02:29:19,338 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:19,338 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:29:19,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 02:29:19,338 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:19,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:19,339 INFO L85 PathProgramCache]: Analyzing trace with hash 326222874, now seen corresponding path program 1 times [2022-01-10 02:29:19,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:19,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645445859] [2022-01-10 02:29:19,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:19,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:19,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:29:19,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:19,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645445859] [2022-01-10 02:29:19,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645445859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:19,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:19,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 02:29:19,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086230884] [2022-01-10 02:29:19,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:19,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 02:29:19,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:19,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 02:29:19,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 02:29:19,405 INFO L87 Difference]: Start difference. First operand 6973 states and 10684 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:19,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:29:19,507 INFO L93 Difference]: Finished difference Result 7249 states and 11124 transitions. [2022-01-10 02:29:19,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 02:29:19,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-10 02:29:19,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:29:19,536 INFO L225 Difference]: With dead ends: 7249 [2022-01-10 02:29:19,536 INFO L226 Difference]: Without dead ends: 7105 [2022-01-10 02:29:19,538 INFO L932 BasicCegarLoop]: 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 [2022-01-10 02:29:19,552 INFO L933 BasicCegarLoop]: 1729 mSDtfsCounter, 1546 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 1852 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 [2022-01-10 02:29:19,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1546 Valid, 1852 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 02:29:19,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7105 states. [2022-01-10 02:29:19,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7105 to 7103. [2022-01-10 02:29:19,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7103 states, 7101 states have (on average 1.5337276439938037) internal successors, (10891), 7102 states have internal predecessors, (10891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:19,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7103 states to 7103 states and 10891 transitions. [2022-01-10 02:29:19,708 INFO L78 Accepts]: Start accepts. Automaton has 7103 states and 10891 transitions. Word has length 106 [2022-01-10 02:29:19,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:29:19,708 INFO L470 AbstractCegarLoop]: Abstraction has 7103 states and 10891 transitions. [2022-01-10 02:29:19,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:19,708 INFO L276 IsEmpty]: Start isEmpty. Operand 7103 states and 10891 transitions. [2022-01-10 02:29:19,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 02:29:19,709 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:19,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:29:19,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 02:29:19,709 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:19,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:19,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1573731728, now seen corresponding path program 1 times [2022-01-10 02:29:19,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:19,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560237537] [2022-01-10 02:29:19,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:19,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:19,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:29:19,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:19,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560237537] [2022-01-10 02:29:19,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560237537] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:19,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:19,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 02:29:19,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462256188] [2022-01-10 02:29:19,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:19,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 02:29:19,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:19,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 02:29:19,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 02:29:19,750 INFO L87 Difference]: Start difference. First operand 7103 states and 10891 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:19,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:29:19,818 INFO L93 Difference]: Finished difference Result 7627 states and 11725 transitions. [2022-01-10 02:29:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 02:29:19,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-10 02:29:19,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:29:19,837 INFO L225 Difference]: With dead ends: 7627 [2022-01-10 02:29:19,838 INFO L226 Difference]: Without dead ends: 7353 [2022-01-10 02:29:19,840 INFO L932 BasicCegarLoop]: 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 [2022-01-10 02:29:19,842 INFO L933 BasicCegarLoop]: 1724 mSDtfsCounter, 1542 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1542 SdHoareTripleChecker+Valid, 1851 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 [2022-01-10 02:29:19,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1542 Valid, 1851 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 02:29:19,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7353 states. [2022-01-10 02:29:19,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7353 to 7351. [2022-01-10 02:29:19,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7351 states, 7349 states have (on average 1.535310926656688) internal successors, (11283), 7350 states have internal predecessors, (11283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:19,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7351 states to 7351 states and 11283 transitions. [2022-01-10 02:29:19,979 INFO L78 Accepts]: Start accepts. Automaton has 7351 states and 11283 transitions. Word has length 106 [2022-01-10 02:29:19,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:29:19,979 INFO L470 AbstractCegarLoop]: Abstraction has 7351 states and 11283 transitions. [2022-01-10 02:29:19,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:19,980 INFO L276 IsEmpty]: Start isEmpty. Operand 7351 states and 11283 transitions. [2022-01-10 02:29:19,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 02:29:19,980 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:19,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:29:19,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 02:29:19,981 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:19,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:19,982 INFO L85 PathProgramCache]: Analyzing trace with hash 832299526, now seen corresponding path program 1 times [2022-01-10 02:29:19,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:19,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274156009] [2022-01-10 02:29:19,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:19,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:20,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:29:20,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:20,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274156009] [2022-01-10 02:29:20,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274156009] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:20,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:20,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 02:29:20,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982474848] [2022-01-10 02:29:20,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:20,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 02:29:20,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:20,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 02:29:20,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 02:29:20,027 INFO L87 Difference]: Start difference. First operand 7351 states and 11283 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:20,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:29:20,108 INFO L93 Difference]: Finished difference Result 8347 states and 12861 transitions. [2022-01-10 02:29:20,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 02:29:20,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-10 02:29:20,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:29:20,118 INFO L225 Difference]: With dead ends: 8347 [2022-01-10 02:29:20,118 INFO L226 Difference]: Without dead ends: 7825 [2022-01-10 02:29:20,120 INFO L932 BasicCegarLoop]: 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 [2022-01-10 02:29:20,121 INFO L933 BasicCegarLoop]: 1667 mSDtfsCounter, 1522 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1814 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 [2022-01-10 02:29:20,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1522 Valid, 1814 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 02:29:20,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7825 states. [2022-01-10 02:29:20,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7825 to 7823. [2022-01-10 02:29:20,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7823 states, 7821 states have (on average 1.5372714486638537) internal successors, (12023), 7822 states have internal predecessors, (12023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:20,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7823 states to 7823 states and 12023 transitions. [2022-01-10 02:29:20,235 INFO L78 Accepts]: Start accepts. Automaton has 7823 states and 12023 transitions. Word has length 106 [2022-01-10 02:29:20,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:29:20,235 INFO L470 AbstractCegarLoop]: Abstraction has 7823 states and 12023 transitions. [2022-01-10 02:29:20,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:20,235 INFO L276 IsEmpty]: Start isEmpty. Operand 7823 states and 12023 transitions. [2022-01-10 02:29:20,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 02:29:20,236 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:20,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:29:20,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 02:29:20,238 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:20,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:20,238 INFO L85 PathProgramCache]: Analyzing trace with hash 2050284924, now seen corresponding path program 1 times [2022-01-10 02:29:20,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:20,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956487109] [2022-01-10 02:29:20,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:20,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:20,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:29:20,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:20,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956487109] [2022-01-10 02:29:20,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956487109] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:20,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:20,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 02:29:20,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70883482] [2022-01-10 02:29:20,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:20,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 02:29:20,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:20,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 02:29:20,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-10 02:29:20,379 INFO L87 Difference]: Start difference. First operand 7823 states and 12023 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:21,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:29:21,229 INFO L93 Difference]: Finished difference Result 23727 states and 37127 transitions. [2022-01-10 02:29:21,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 02:29:21,230 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2022-01-10 02:29:21,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:29:21,264 INFO L225 Difference]: With dead ends: 23727 [2022-01-10 02:29:21,264 INFO L226 Difference]: Without dead ends: 22733 [2022-01-10 02:29:21,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-01-10 02:29:21,272 INFO L933 BasicCegarLoop]: 1621 mSDtfsCounter, 15549 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15549 SdHoareTripleChecker+Valid, 3647 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 02:29:21,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15549 Valid, 3647 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 02:29:21,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22733 states. [2022-01-10 02:29:21,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22733 to 8815. [2022-01-10 02:29:21,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8815 states, 8813 states have (on average 1.5385226370135028) internal successors, (13559), 8814 states have internal predecessors, (13559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:21,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8815 states to 8815 states and 13559 transitions. [2022-01-10 02:29:21,546 INFO L78 Accepts]: Start accepts. Automaton has 8815 states and 13559 transitions. Word has length 106 [2022-01-10 02:29:21,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:29:21,546 INFO L470 AbstractCegarLoop]: Abstraction has 8815 states and 13559 transitions. [2022-01-10 02:29:21,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:21,546 INFO L276 IsEmpty]: Start isEmpty. Operand 8815 states and 13559 transitions. [2022-01-10 02:29:21,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 02:29:21,547 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:21,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:29:21,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 02:29:21,548 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:21,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:21,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1813103660, now seen corresponding path program 1 times [2022-01-10 02:29:21,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:21,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566416499] [2022-01-10 02:29:21,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:21,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:21,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:29:21,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:21,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566416499] [2022-01-10 02:29:21,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566416499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:21,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:21,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 02:29:21,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654023619] [2022-01-10 02:29:21,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:21,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 02:29:21,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:21,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 02:29:21,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 02:29:21,590 INFO L87 Difference]: Start difference. First operand 8815 states and 13559 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:21,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:29:21,786 INFO L93 Difference]: Finished difference Result 11757 states and 18155 transitions. [2022-01-10 02:29:21,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 02:29:21,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-10 02:29:21,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:29:21,800 INFO L225 Difference]: With dead ends: 11757 [2022-01-10 02:29:21,800 INFO L226 Difference]: Without dead ends: 9771 [2022-01-10 02:29:21,803 INFO L932 BasicCegarLoop]: 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 [2022-01-10 02:29:21,804 INFO L933 BasicCegarLoop]: 1648 mSDtfsCounter, 1514 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 02:29:21,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1514 Valid, 1764 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 02:29:21,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9771 states. [2022-01-10 02:29:22,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9771 to 9769. [2022-01-10 02:29:22,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9769 states, 9767 states have (on average 1.5383434012491042) internal successors, (15025), 9768 states have internal predecessors, (15025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:22,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9769 states to 9769 states and 15025 transitions. [2022-01-10 02:29:22,085 INFO L78 Accepts]: Start accepts. Automaton has 9769 states and 15025 transitions. Word has length 108 [2022-01-10 02:29:22,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:29:22,085 INFO L470 AbstractCegarLoop]: Abstraction has 9769 states and 15025 transitions. [2022-01-10 02:29:22,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:22,086 INFO L276 IsEmpty]: Start isEmpty. Operand 9769 states and 15025 transitions. [2022-01-10 02:29:22,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 02:29:22,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:22,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:29:22,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 02:29:22,087 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:22,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:22,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1879597172, now seen corresponding path program 1 times [2022-01-10 02:29:22,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:22,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774410806] [2022-01-10 02:29:22,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:22,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:22,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:29:22,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:22,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774410806] [2022-01-10 02:29:22,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774410806] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:22,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:22,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 02:29:22,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337272692] [2022-01-10 02:29:22,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:22,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 02:29:22,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:22,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 02:29:22,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-10 02:29:22,290 INFO L87 Difference]: Start difference. First operand 9769 states and 15025 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:22,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:29:22,837 INFO L93 Difference]: Finished difference Result 12709 states and 19595 transitions. [2022-01-10 02:29:22,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 02:29:22,837 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-10 02:29:22,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:29:22,849 INFO L225 Difference]: With dead ends: 12709 [2022-01-10 02:29:22,849 INFO L226 Difference]: Without dead ends: 9771 [2022-01-10 02:29:22,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:29:22,854 INFO L933 BasicCegarLoop]: 1658 mSDtfsCounter, 3602 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3602 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 02:29:22,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3602 Valid, 2487 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 02:29:22,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9771 states. [2022-01-10 02:29:23,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9771 to 9769. [2022-01-10 02:29:23,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9769 states, 9767 states have (on average 1.53588614723047) internal successors, (15001), 9768 states have internal predecessors, (15001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:23,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9769 states to 9769 states and 15001 transitions. [2022-01-10 02:29:23,102 INFO L78 Accepts]: Start accepts. Automaton has 9769 states and 15001 transitions. Word has length 108 [2022-01-10 02:29:23,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:29:23,102 INFO L470 AbstractCegarLoop]: Abstraction has 9769 states and 15001 transitions. [2022-01-10 02:29:23,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:23,102 INFO L276 IsEmpty]: Start isEmpty. Operand 9769 states and 15001 transitions. [2022-01-10 02:29:23,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 02:29:23,103 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:23,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:29:23,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 02:29:23,103 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:23,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:23,104 INFO L85 PathProgramCache]: Analyzing trace with hash 621051568, now seen corresponding path program 1 times [2022-01-10 02:29:23,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:23,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018398914] [2022-01-10 02:29:23,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:23,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:23,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:29:23,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:23,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018398914] [2022-01-10 02:29:23,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018398914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:23,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:23,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 02:29:23,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109503345] [2022-01-10 02:29:23,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:23,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 02:29:23,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:23,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 02:29:23,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 02:29:23,139 INFO L87 Difference]: Start difference. First operand 9769 states and 15001 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:23,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:29:23,501 INFO L93 Difference]: Finished difference Result 15357 states and 23611 transitions. [2022-01-10 02:29:23,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 02:29:23,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-10 02:29:23,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:29:23,517 INFO L225 Difference]: With dead ends: 15357 [2022-01-10 02:29:23,517 INFO L226 Difference]: Without dead ends: 12419 [2022-01-10 02:29:23,522 INFO L932 BasicCegarLoop]: 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 [2022-01-10 02:29:23,523 INFO L933 BasicCegarLoop]: 1680 mSDtfsCounter, 1526 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1823 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 [2022-01-10 02:29:23,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1526 Valid, 1823 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 02:29:23,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12419 states. [2022-01-10 02:29:23,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12419 to 12417. [2022-01-10 02:29:23,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12417 states, 12415 states have (on average 1.5317760773258156) internal successors, (19017), 12416 states have internal predecessors, (19017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:23,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12417 states to 12417 states and 19017 transitions. [2022-01-10 02:29:23,984 INFO L78 Accepts]: Start accepts. Automaton has 12417 states and 19017 transitions. Word has length 108 [2022-01-10 02:29:23,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:29:23,985 INFO L470 AbstractCegarLoop]: Abstraction has 12417 states and 19017 transitions. [2022-01-10 02:29:23,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:23,985 INFO L276 IsEmpty]: Start isEmpty. Operand 12417 states and 19017 transitions. [2022-01-10 02:29:23,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 02:29:23,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:23,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:29:23,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 02:29:23,986 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:23,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:23,987 INFO L85 PathProgramCache]: Analyzing trace with hash 894739280, now seen corresponding path program 1 times [2022-01-10 02:29:23,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:23,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715036345] [2022-01-10 02:29:23,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:23,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:24,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:29:24,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:24,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715036345] [2022-01-10 02:29:24,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715036345] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:24,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:24,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 02:29:24,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037595736] [2022-01-10 02:29:24,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:24,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 02:29:24,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:24,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 02:29:24,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 02:29:24,034 INFO L87 Difference]: Start difference. First operand 12417 states and 19017 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:24,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:29:24,701 INFO L93 Difference]: Finished difference Result 23013 states and 35179 transitions. [2022-01-10 02:29:24,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 02:29:24,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-10 02:29:24,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:29:24,726 INFO L225 Difference]: With dead ends: 23013 [2022-01-10 02:29:24,726 INFO L226 Difference]: Without dead ends: 17427 [2022-01-10 02:29:24,737 INFO L932 BasicCegarLoop]: 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 [2022-01-10 02:29:24,738 INFO L933 BasicCegarLoop]: 1693 mSDtfsCounter, 1530 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 1832 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 [2022-01-10 02:29:24,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1530 Valid, 1832 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 02:29:24,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17427 states. [2022-01-10 02:29:25,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17427 to 17425. [2022-01-10 02:29:25,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17425 states, 17423 states have (on average 1.522183320897664) internal successors, (26521), 17424 states have internal predecessors, (26521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:25,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17425 states to 17425 states and 26521 transitions. [2022-01-10 02:29:25,820 INFO L78 Accepts]: Start accepts. Automaton has 17425 states and 26521 transitions. Word has length 108 [2022-01-10 02:29:25,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:29:25,820 INFO L470 AbstractCegarLoop]: Abstraction has 17425 states and 26521 transitions. [2022-01-10 02:29:25,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:25,821 INFO L276 IsEmpty]: Start isEmpty. Operand 17425 states and 26521 transitions. [2022-01-10 02:29:25,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 02:29:25,835 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:25,836 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:29:25,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 02:29:25,836 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:25,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:25,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1581156368, now seen corresponding path program 1 times [2022-01-10 02:29:25,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:25,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925481670] [2022-01-10 02:29:25,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:25,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:25,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:29:25,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:25,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925481670] [2022-01-10 02:29:25,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925481670] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:25,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:25,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 02:29:25,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090903508] [2022-01-10 02:29:25,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:25,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 02:29:25,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:25,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 02:29:25,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 02:29:25,898 INFO L87 Difference]: Start difference. First operand 17425 states and 26521 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:27,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:29:27,216 INFO L93 Difference]: Finished difference Result 37461 states and 56731 transitions. [2022-01-10 02:29:27,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 02:29:27,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-10 02:29:27,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:29:27,261 INFO L225 Difference]: With dead ends: 37461 [2022-01-10 02:29:27,261 INFO L226 Difference]: Without dead ends: 26867 [2022-01-10 02:29:27,280 INFO L932 BasicCegarLoop]: 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 [2022-01-10 02:29:27,283 INFO L933 BasicCegarLoop]: 1706 mSDtfsCounter, 1534 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 1841 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 [2022-01-10 02:29:27,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1534 Valid, 1841 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 02:29:27,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26867 states. [2022-01-10 02:29:28,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26867 to 26865. [2022-01-10 02:29:28,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26865 states, 26863 states have (on average 1.5066448274578417) internal successors, (40473), 26864 states have internal predecessors, (40473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:28,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26865 states to 26865 states and 40473 transitions. [2022-01-10 02:29:28,826 INFO L78 Accepts]: Start accepts. Automaton has 26865 states and 40473 transitions. Word has length 108 [2022-01-10 02:29:28,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:29:28,827 INFO L470 AbstractCegarLoop]: Abstraction has 26865 states and 40473 transitions. [2022-01-10 02:29:28,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:28,827 INFO L276 IsEmpty]: Start isEmpty. Operand 26865 states and 40473 transitions. [2022-01-10 02:29:28,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 02:29:28,828 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:28,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:29:28,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 02:29:28,828 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:28,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:28,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1401750384, now seen corresponding path program 1 times [2022-01-10 02:29:28,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:28,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059169249] [2022-01-10 02:29:28,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:28,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:28,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:29:28,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:28,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059169249] [2022-01-10 02:29:28,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059169249] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:28,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:28,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 02:29:28,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939394880] [2022-01-10 02:29:28,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:28,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 02:29:28,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:28,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 02:29:28,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 02:29:28,873 INFO L87 Difference]: Start difference. First operand 26865 states and 40473 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:31,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:29:31,480 INFO L93 Difference]: Finished difference Result 64629 states and 96667 transitions. [2022-01-10 02:29:31,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 02:29:31,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-10 02:29:31,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:29:31,530 INFO L225 Difference]: With dead ends: 64629 [2022-01-10 02:29:31,531 INFO L226 Difference]: Without dead ends: 44595 [2022-01-10 02:29:31,548 INFO L932 BasicCegarLoop]: 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 [2022-01-10 02:29:31,549 INFO L933 BasicCegarLoop]: 1719 mSDtfsCounter, 1538 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 1850 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 [2022-01-10 02:29:31,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1538 Valid, 1850 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 02:29:31,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44595 states. [2022-01-10 02:29:34,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44595 to 44593. [2022-01-10 02:29:34,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44593 states, 44591 states have (on average 1.4860622098629768) internal successors, (66265), 44592 states have internal predecessors, (66265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:34,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44593 states to 44593 states and 66265 transitions. [2022-01-10 02:29:34,827 INFO L78 Accepts]: Start accepts. Automaton has 44593 states and 66265 transitions. Word has length 108 [2022-01-10 02:29:34,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:29:34,827 INFO L470 AbstractCegarLoop]: Abstraction has 44593 states and 66265 transitions. [2022-01-10 02:29:34,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:34,828 INFO L276 IsEmpty]: Start isEmpty. Operand 44593 states and 66265 transitions. [2022-01-10 02:29:34,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-10 02:29:34,828 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:34,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:29:34,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 02:29:34,829 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:34,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:34,829 INFO L85 PathProgramCache]: Analyzing trace with hash 2018214719, now seen corresponding path program 1 times [2022-01-10 02:29:34,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:34,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332614287] [2022-01-10 02:29:34,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:34,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:34,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:29:34,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:34,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332614287] [2022-01-10 02:29:34,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332614287] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:34,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:34,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 02:29:34,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713523583] [2022-01-10 02:29:34,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:34,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 02:29:34,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:34,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 02:29:34,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 02:29:34,895 INFO L87 Difference]: Start difference. First operand 44593 states and 66265 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:40,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:29:40,333 INFO L93 Difference]: Finished difference Result 76760 states and 112842 transitions. [2022-01-10 02:29:40,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 02:29:40,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-10 02:29:40,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:29:40,427 INFO L225 Difference]: With dead ends: 76760 [2022-01-10 02:29:40,428 INFO L226 Difference]: Without dead ends: 76758 [2022-01-10 02:29:40,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 02:29:40,442 INFO L933 BasicCegarLoop]: 1669 mSDtfsCounter, 334 mSDsluCounter, 4874 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 6543 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 02:29:40,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 6543 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 02:29:40,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76758 states. [2022-01-10 02:29:43,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76758 to 46129. [2022-01-10 02:29:43,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46129 states, 46127 states have (on average 1.4671016974873718) internal successors, (67673), 46128 states have internal predecessors, (67673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:44,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46129 states to 46129 states and 67673 transitions. [2022-01-10 02:29:44,031 INFO L78 Accepts]: Start accepts. Automaton has 46129 states and 67673 transitions. Word has length 109 [2022-01-10 02:29:44,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:29:44,032 INFO L470 AbstractCegarLoop]: Abstraction has 46129 states and 67673 transitions. [2022-01-10 02:29:44,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:29:44,032 INFO L276 IsEmpty]: Start isEmpty. Operand 46129 states and 67673 transitions. [2022-01-10 02:29:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-10 02:29:44,050 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:29:44,051 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:29:44,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 02:29:44,051 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:29:44,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:29:44,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1243757929, now seen corresponding path program 1 times [2022-01-10 02:29:44,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:29:44,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188245945] [2022-01-10 02:29:44,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:29:44,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:29:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:29:44,245 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-10 02:29:44,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:29:44,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188245945] [2022-01-10 02:29:44,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188245945] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:29:44,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:29:44,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 02:29:44,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765070775] [2022-01-10 02:29:44,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:29:44,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 02:29:44,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:29:44,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 02:29:44,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-10 02:29:44,247 INFO L87 Difference]: Start difference. First operand 46129 states and 67673 transitions. Second operand has 10 states, 10 states have (on average 12.9) internal successors, (129), 10 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:30:09,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:30:09,441 INFO L93 Difference]: Finished difference Result 368067 states and 535970 transitions. [2022-01-10 02:30:09,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 02:30:09,442 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.9) internal successors, (129), 10 states have internal predecessors, (129), 0 states have call successors, (0), 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 149 [2022-01-10 02:30:09,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted.