/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_Bitvector.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:50:47,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:50:47,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:50:47,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 06:50:47,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:50:47,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:50:47,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:50:47,704 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 06:50:47,726 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:50:47,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:50:47,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:50:47,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:50:47,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:50:47,727 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:50:47,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:50:47,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:50:47,728 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:50:47,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:50:47,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:50:47,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:50:47,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:50:47,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:50:47,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:50:47,728 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:50:47,729 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:50:47,729 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:50:47,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:50:47,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:50:47,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:50:47,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:50:47,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:50:47,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:50:47,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:50:47,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:50:47,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:50:47,730 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:50:47,730 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:50:47,730 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:50:47,730 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:50:47,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:50:47,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:50:47,730 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:50:47,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:50:47,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:50:47,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:50:47,954 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:50:47,956 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:50:47,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c [2022-01-10 06:50:48,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ccf32cb/c2d1159bc1b64ce694b0dbff0a776ce3/FLAG63d9470a9 [2022-01-10 06:50:48,399 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:50:48,399 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c [2022-01-10 06:50:48,406 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ccf32cb/c2d1159bc1b64ce694b0dbff0a776ce3/FLAG63d9470a9 [2022-01-10 06:50:48,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9ccf32cb/c2d1159bc1b64ce694b0dbff0a776ce3 [2022-01-10 06:50:48,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:50:48,420 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:50:48,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:50:48,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:50:48,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:50:48,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:50:48" (1/1) ... [2022-01-10 06:50:48,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65fdc16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:48, skipping insertion in model container [2022-01-10 06:50:48,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:50:48" (1/1) ... [2022-01-10 06:50:48,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:50:48,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:50:48,679 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c[16824,16837] [2022-01-10 06:50:48,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:50:48,692 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:50:48,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c[16824,16837] [2022-01-10 06:50:48,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:50:48,745 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:50:48,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:48 WrapperNode [2022-01-10 06:50:48,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:50:48,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:50:48,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:50:48,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:50:48,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:48" (1/1) ... [2022-01-10 06:50:48,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:48" (1/1) ... [2022-01-10 06:50:48,782 INFO L137 Inliner]: procedures = 25, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 434 [2022-01-10 06:50:48,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:50:48,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:50:48,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:50:48,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:50:48,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:48" (1/1) ... [2022-01-10 06:50:48,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:48" (1/1) ... [2022-01-10 06:50:48,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:48" (1/1) ... [2022-01-10 06:50:48,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:48" (1/1) ... [2022-01-10 06:50:48,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:48" (1/1) ... [2022-01-10 06:50:48,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:48" (1/1) ... [2022-01-10 06:50:48,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:48" (1/1) ... [2022-01-10 06:50:48,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:50:48,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:50:48,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:50:48,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:50:48,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:48" (1/1) ... [2022-01-10 06:50:48,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:50:48,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:50:48,891 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 06:50:48,896 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 06:50:48,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:50:48,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:50:48,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:50:48,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:50:49,073 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:50:49,074 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:50:49,513 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:50:49,525 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:50:49,525 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 06:50:49,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:50:49 BoogieIcfgContainer [2022-01-10 06:50:49,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:50:49,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:50:49,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:50:49,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:50:49,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:50:48" (1/3) ... [2022-01-10 06:50:49,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cb88be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:50:49, skipping insertion in model container [2022-01-10 06:50:49,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:50:48" (2/3) ... [2022-01-10 06:50:49,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cb88be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:50:49, skipping insertion in model container [2022-01-10 06:50:49,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:50:49" (3/3) ... [2022-01-10 06:50:49,534 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c [2022-01-10 06:50:49,540 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:50:49,541 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:50:49,584 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:50:49,597 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 06:50:49,597 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:50:49,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 140 states have (on average 1.7214285714285715) internal successors, (241), 141 states have internal predecessors, (241), 0 states have call successors, (0), 0 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 06:50:49,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 06:50:49,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:50:49,621 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] [2022-01-10 06:50:49,621 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:50:49,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:50:49,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1765981308, now seen corresponding path program 1 times [2022-01-10 06:50:49,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:50:49,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1546263397] [2022-01-10 06:50:49,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:50:49,635 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:50:49,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:50:49,637 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:50:49,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 06:50:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:50:49,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:50:49,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:50:49,870 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 06:50:49,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:50:49,871 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:50:49,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1546263397] [2022-01-10 06:50:49,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1546263397] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:50:49,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:50:49,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:50:49,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039364780] [2022-01-10 06:50:49,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:50:49,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:50:49,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:50:49,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:50:49,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:50:49,904 INFO L87 Difference]: Start difference. First operand has 142 states, 140 states have (on average 1.7214285714285715) internal successors, (241), 141 states have internal predecessors, (241), 0 states have call successors, (0), 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 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 06:50:50,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:50:50,014 INFO L93 Difference]: Finished difference Result 241 states and 398 transitions. [2022-01-10 06:50:50,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:50:50,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2022-01-10 06:50:50,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:50:50,025 INFO L225 Difference]: With dead ends: 241 [2022-01-10 06:50:50,025 INFO L226 Difference]: Without dead ends: 138 [2022-01-10 06:50:50,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 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 06:50:50,031 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 3 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:50:50,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 900 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:50:50,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-01-10 06:50:50,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-01-10 06:50:50,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 137 states have (on average 1.4087591240875912) internal successors, (193), 137 states have internal predecessors, (193), 0 states have call successors, (0), 0 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 06:50:50,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 193 transitions. [2022-01-10 06:50:50,072 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 193 transitions. Word has length 37 [2022-01-10 06:50:50,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:50:50,072 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 193 transitions. [2022-01-10 06:50:50,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 06:50:50,072 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 193 transitions. [2022-01-10 06:50:50,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 06:50:50,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:50:50,078 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] [2022-01-10 06:50:50,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 06:50:50,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:50:50,289 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:50:50,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:50:50,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1408949682, now seen corresponding path program 1 times [2022-01-10 06:50:50,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:50:50,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475317287] [2022-01-10 06:50:50,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:50:50,293 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:50:50,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:50:50,294 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:50:50,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 06:50:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:50:50,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:50:50,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:50:50,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:50:50,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:50:50,567 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:50:50,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475317287] [2022-01-10 06:50:50,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475317287] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:50:50,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:50:50,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:50:50,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415090895] [2022-01-10 06:50:50,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:50:50,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:50:50,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:50:50,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:50:50,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:50:50,570 INFO L87 Difference]: Start difference. First operand 138 states and 193 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:50:50,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:50:50,587 INFO L93 Difference]: Finished difference Result 308 states and 465 transitions. [2022-01-10 06:50:50,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:50:50,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-10 06:50:50,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:50:50,588 INFO L225 Difference]: With dead ends: 308 [2022-01-10 06:50:50,589 INFO L226 Difference]: Without dead ends: 217 [2022-01-10 06:50:50,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 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 06:50:50,590 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 130 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 438 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 06:50:50,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 438 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:50:50,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-01-10 06:50:50,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 215. [2022-01-10 06:50:50,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 1.4813084112149533) internal successors, (317), 214 states have internal predecessors, (317), 0 states have call successors, (0), 0 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 06:50:50,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 317 transitions. [2022-01-10 06:50:50,601 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 317 transitions. Word has length 77 [2022-01-10 06:50:50,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:50:50,601 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 317 transitions. [2022-01-10 06:50:50,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:50:50,601 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 317 transitions. [2022-01-10 06:50:50,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-10 06:50:50,602 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:50:50,602 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] [2022-01-10 06:50:50,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 06:50:50,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:50:50,810 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:50:50,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:50:50,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1762847602, now seen corresponding path program 1 times [2022-01-10 06:50:50,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:50:50,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700966915] [2022-01-10 06:50:50,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:50:50,812 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:50:50,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:50:50,816 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:50:50,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 06:50:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:50:50,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:50:50,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:50:51,028 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 06:50:51,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:50:51,029 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:50:51,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700966915] [2022-01-10 06:50:51,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1700966915] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:50:51,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:50:51,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:50:51,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641455348] [2022-01-10 06:50:51,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:50:51,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:50:51,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:50:51,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:50:51,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:50:51,031 INFO L87 Difference]: Start difference. First operand 215 states and 317 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:50:51,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:50:51,046 INFO L93 Difference]: Finished difference Result 527 states and 817 transitions. [2022-01-10 06:50:51,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:50:51,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-10 06:50:51,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:50:51,049 INFO L225 Difference]: With dead ends: 527 [2022-01-10 06:50:51,049 INFO L226 Difference]: Without dead ends: 359 [2022-01-10 06:50:51,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 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 06:50:51,051 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 125 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 429 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 06:50:51,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 429 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:50:51,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2022-01-10 06:50:51,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 357. [2022-01-10 06:50:51,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 1.5280898876404494) internal successors, (544), 356 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 06:50:51,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 544 transitions. [2022-01-10 06:50:51,076 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 544 transitions. Word has length 78 [2022-01-10 06:50:51,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:50:51,077 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 544 transitions. [2022-01-10 06:50:51,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:50:51,077 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 544 transitions. [2022-01-10 06:50:51,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 06:50:51,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:50:51,078 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] [2022-01-10 06:50:51,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 06:50:51,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:50:51,286 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:50:51,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:50:51,287 INFO L85 PathProgramCache]: Analyzing trace with hash -863425826, now seen corresponding path program 1 times [2022-01-10 06:50:51,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:50:51,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103016397] [2022-01-10 06:50:51,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:50:51,288 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:50:51,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:50:51,289 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:50:51,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 06:50:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:50:51,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:50:51,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:50:51,486 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 06:50:51,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:50:51,487 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:50:51,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103016397] [2022-01-10 06:50:51,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103016397] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:50:51,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:50:51,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:50:51,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369157137] [2022-01-10 06:50:51,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:50:51,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:50:51,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:50:51,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:50:51,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:50:51,488 INFO L87 Difference]: Start difference. First operand 357 states and 544 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:50:51,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:50:51,504 INFO L93 Difference]: Finished difference Result 929 states and 1458 transitions. [2022-01-10 06:50:51,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:50:51,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-10 06:50:51,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:50:51,507 INFO L225 Difference]: With dead ends: 929 [2022-01-10 06:50:51,507 INFO L226 Difference]: Without dead ends: 619 [2022-01-10 06:50:51,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 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 06:50:51,509 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 120 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 420 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 06:50:51,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 420 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:50:51,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-01-10 06:50:51,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 617. [2022-01-10 06:50:51,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 616 states have (on average 1.551948051948052) internal successors, (956), 616 states have internal predecessors, (956), 0 states have call successors, (0), 0 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 06:50:51,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 956 transitions. [2022-01-10 06:50:51,530 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 956 transitions. Word has length 79 [2022-01-10 06:50:51,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:50:51,530 INFO L470 AbstractCegarLoop]: Abstraction has 617 states and 956 transitions. [2022-01-10 06:50:51,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:50:51,530 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 956 transitions. [2022-01-10 06:50:51,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-10 06:50:51,531 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:50:51,531 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] [2022-01-10 06:50:51,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 06:50:51,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:50:51,739 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:50:51,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:50:51,739 INFO L85 PathProgramCache]: Analyzing trace with hash 2005690142, now seen corresponding path program 1 times [2022-01-10 06:50:51,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:50:51,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811559052] [2022-01-10 06:50:51,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:50:51,740 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:50:51,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:50:51,741 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:50:51,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 06:50:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:50:51,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:50:51,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:50:51,935 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 06:50:51,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:50:51,936 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:50:51,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [811559052] [2022-01-10 06:50:51,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [811559052] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:50:51,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:50:51,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:50:51,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077946704] [2022-01-10 06:50:51,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:50:51,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:50:51,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:50:51,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:50:51,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:50:51,937 INFO L87 Difference]: Start difference. First operand 617 states and 956 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:50:51,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:50:51,959 INFO L93 Difference]: Finished difference Result 1661 states and 2614 transitions. [2022-01-10 06:50:51,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:50:51,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-01-10 06:50:51,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:50:51,963 INFO L225 Difference]: With dead ends: 1661 [2022-01-10 06:50:51,963 INFO L226 Difference]: Without dead ends: 1091 [2022-01-10 06:50:51,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 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 06:50:51,964 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 115 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 411 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 06:50:51,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 411 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:50:51,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1091 states. [2022-01-10 06:50:52,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1091 to 1089. [2022-01-10 06:50:52,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 1088 states have (on average 1.5588235294117647) internal successors, (1696), 1088 states have internal predecessors, (1696), 0 states have call successors, (0), 0 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 06:50:52,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1696 transitions. [2022-01-10 06:50:52,008 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1696 transitions. Word has length 80 [2022-01-10 06:50:52,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:50:52,009 INFO L470 AbstractCegarLoop]: Abstraction has 1089 states and 1696 transitions. [2022-01-10 06:50:52,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:50:52,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1696 transitions. [2022-01-10 06:50:52,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 06:50:52,009 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:50:52,009 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] [2022-01-10 06:50:52,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 06:50:52,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:50:52,218 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:50:52,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:50:52,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1850213230, now seen corresponding path program 1 times [2022-01-10 06:50:52,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:50:52,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73813252] [2022-01-10 06:50:52,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:50:52,220 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:50:52,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:50:52,223 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:50:52,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 06:50:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:50:52,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:50:52,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:50:52,400 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 06:50:52,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:50:52,400 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:50:52,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73813252] [2022-01-10 06:50:52,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73813252] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:50:52,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:50:52,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:50:52,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653906165] [2022-01-10 06:50:52,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:50:52,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:50:52,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:50:52,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:50:52,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:50:52,402 INFO L87 Difference]: Start difference. First operand 1089 states and 1696 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:50:52,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:50:52,436 INFO L93 Difference]: Finished difference Result 2981 states and 4674 transitions. [2022-01-10 06:50:52,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:50:52,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 06:50:52,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:50:52,442 INFO L225 Difference]: With dead ends: 2981 [2022-01-10 06:50:52,442 INFO L226 Difference]: Without dead ends: 1939 [2022-01-10 06:50:52,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 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 06:50:52,445 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 110 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 402 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 06:50:52,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 402 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:50:52,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2022-01-10 06:50:52,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1937. [2022-01-10 06:50:52,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1937 states, 1936 states have (on average 1.5537190082644627) internal successors, (3008), 1936 states have internal predecessors, (3008), 0 states have call successors, (0), 0 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 06:50:52,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 3008 transitions. [2022-01-10 06:50:52,489 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 3008 transitions. Word has length 81 [2022-01-10 06:50:52,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:50:52,490 INFO L470 AbstractCegarLoop]: Abstraction has 1937 states and 3008 transitions. [2022-01-10 06:50:52,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:50:52,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 3008 transitions. [2022-01-10 06:50:52,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 06:50:52,492 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:50:52,493 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] [2022-01-10 06:50:52,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-01-10 06:50:52,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:50:52,700 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:50:52,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:50:52,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1094060462, now seen corresponding path program 1 times [2022-01-10 06:50:52,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:50:52,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003496983] [2022-01-10 06:50:52,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:50:52,703 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:50:52,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:50:52,716 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:50:52,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 06:50:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:50:52,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 06:50:52,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:50:53,105 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 06:50:53,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:50:53,106 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:50:53,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003496983] [2022-01-10 06:50:53,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003496983] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:50:53,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:50:53,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 06:50:53,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128870412] [2022-01-10 06:50:53,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:50:53,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 06:50:53,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:50:53,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 06:50:53,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 06:50:53,107 INFO L87 Difference]: Start difference. First operand 1937 states and 3008 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:50:53,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:50:53,492 INFO L93 Difference]: Finished difference Result 12077 states and 18694 transitions. [2022-01-10 06:50:53,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 06:50:53,493 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-10 06:50:53,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:50:53,527 INFO L225 Difference]: With dead ends: 12077 [2022-01-10 06:50:53,527 INFO L226 Difference]: Without dead ends: 10187 [2022-01-10 06:50:53,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 06:50:53,532 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 928 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 06:50:53,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [928 Valid, 1401 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 06:50:53,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10187 states. [2022-01-10 06:50:53,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10187 to 10177. [2022-01-10 06:50:53,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10177 states, 10176 states have (on average 1.5424528301886793) internal successors, (15696), 10176 states have internal predecessors, (15696), 0 states have call successors, (0), 0 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 06:50:53,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10177 states to 10177 states and 15696 transitions. [2022-01-10 06:50:53,910 INFO L78 Accepts]: Start accepts. Automaton has 10177 states and 15696 transitions. Word has length 82 [2022-01-10 06:50:53,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:50:53,911 INFO L470 AbstractCegarLoop]: Abstraction has 10177 states and 15696 transitions. [2022-01-10 06:50:53,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:50:53,912 INFO L276 IsEmpty]: Start isEmpty. Operand 10177 states and 15696 transitions. [2022-01-10 06:50:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 06:50:53,915 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:50:53,916 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] [2022-01-10 06:50:53,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-01-10 06:50:54,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:50:54,123 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:50:54,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:50:54,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1417912184, now seen corresponding path program 1 times [2022-01-10 06:50:54,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:50:54,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139221266] [2022-01-10 06:50:54,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:50:54,125 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:50:54,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:50:54,141 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:50:54,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 06:50:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:50:54,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:50:54,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:50:54,325 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 06:50:54,325 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:50:54,325 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:50:54,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139221266] [2022-01-10 06:50:54,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139221266] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:50:54,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:50:54,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:50:54,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537201747] [2022-01-10 06:50:54,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:50:54,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:50:54,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:50:54,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:50:54,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:50:54,327 INFO L87 Difference]: Start difference. First operand 10177 states and 15696 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:50:54,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:50:54,798 INFO L93 Difference]: Finished difference Result 28709 states and 44114 transitions. [2022-01-10 06:50:54,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:50:54,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-10 06:50:54,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:50:54,850 INFO L225 Difference]: With dead ends: 28709 [2022-01-10 06:50:54,850 INFO L226 Difference]: Without dead ends: 18579 [2022-01-10 06:50:54,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 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 06:50:54,866 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 134 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 462 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 06:50:54,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 462 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:50:54,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18579 states. [2022-01-10 06:50:55,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18579 to 18577. [2022-01-10 06:50:55,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18577 states, 18576 states have (on average 1.5219638242894056) internal successors, (28272), 18576 states have internal predecessors, (28272), 0 states have call successors, (0), 0 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 06:50:55,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18577 states to 18577 states and 28272 transitions. [2022-01-10 06:50:55,479 INFO L78 Accepts]: Start accepts. Automaton has 18577 states and 28272 transitions. Word has length 82 [2022-01-10 06:50:55,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:50:55,479 INFO L470 AbstractCegarLoop]: Abstraction has 18577 states and 28272 transitions. [2022-01-10 06:50:55,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:50:55,480 INFO L276 IsEmpty]: Start isEmpty. Operand 18577 states and 28272 transitions. [2022-01-10 06:50:55,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 06:50:55,480 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:50:55,480 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] [2022-01-10 06:50:55,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-01-10 06:50:55,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:50:55,688 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:50:55,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:50:55,689 INFO L85 PathProgramCache]: Analyzing trace with hash -867446125, now seen corresponding path program 1 times [2022-01-10 06:50:55,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:50:55,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575283658] [2022-01-10 06:50:55,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:50:55,689 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:50:55,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:50:55,705 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:50:55,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-01-10 06:50:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:50:55,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 06:50:55,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:50:56,865 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 06:50:56,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:50:56,865 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:50:56,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575283658] [2022-01-10 06:50:56,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575283658] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:50:56,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:50:56,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 06:50:56,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264869716] [2022-01-10 06:50:56,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:50:56,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 06:50:56,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:50:56,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 06:50:56,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 06:50:56,869 INFO L87 Difference]: Start difference. First operand 18577 states and 28272 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:50:58,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:50:58,298 INFO L93 Difference]: Finished difference Result 103967 states and 158647 transitions. [2022-01-10 06:50:58,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 06:50:58,299 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-01-10 06:50:58,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:50:58,477 INFO L225 Difference]: With dead ends: 103967 [2022-01-10 06:50:58,477 INFO L226 Difference]: Without dead ends: 85437 [2022-01-10 06:50:58,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 06:50:58,531 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 1210 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:50:58,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1210 Valid, 1551 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:50:58,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85437 states. [2022-01-10 06:51:00,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85437 to 37105. [2022-01-10 06:51:00,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37105 states, 37104 states have (on average 1.5019404915912031) internal successors, (55728), 37104 states have internal predecessors, (55728), 0 states have call successors, (0), 0 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 06:51:00,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37105 states to 37105 states and 55728 transitions. [2022-01-10 06:51:00,214 INFO L78 Accepts]: Start accepts. Automaton has 37105 states and 55728 transitions. Word has length 83 [2022-01-10 06:51:00,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:51:00,214 INFO L470 AbstractCegarLoop]: Abstraction has 37105 states and 55728 transitions. [2022-01-10 06:51:00,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:51:00,214 INFO L276 IsEmpty]: Start isEmpty. Operand 37105 states and 55728 transitions. [2022-01-10 06:51:00,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-10 06:51:00,215 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:51:00,215 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] [2022-01-10 06:51:00,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-01-10 06:51:00,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:51:00,423 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:51:00,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:51:00,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1504349213, now seen corresponding path program 1 times [2022-01-10 06:51:00,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:51:00,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962607848] [2022-01-10 06:51:00,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:51:00,424 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:51:00,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:51:00,425 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:51:00,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-01-10 06:51:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:51:00,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 06:51:00,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:51:00,618 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 06:51:00,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:51:00,619 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:51:00,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962607848] [2022-01-10 06:51:00,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962607848] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:51:00,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:51:00,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:51:00,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500667254] [2022-01-10 06:51:00,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:51:00,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:51:00,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:51:00,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:51:00,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:51:00,622 INFO L87 Difference]: Start difference. First operand 37105 states and 55728 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 06:51:02,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:51:02,286 INFO L93 Difference]: Finished difference Result 77235 states and 114481 transitions. [2022-01-10 06:51:02,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 06:51:02,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-01-10 06:51:02,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:51:02,424 INFO L225 Difference]: With dead ends: 77235 [2022-01-10 06:51:02,424 INFO L226 Difference]: Without dead ends: 77233 [2022-01-10 06:51:02,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 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 06:51:02,446 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 417 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:51:02,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 841 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:51:02,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77233 states. [2022-01-10 06:51:03,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77233 to 39409. [2022-01-10 06:51:03,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39409 states, 39408 states have (on average 1.4725943970767357) internal successors, (58032), 39408 states have internal predecessors, (58032), 0 states have call successors, (0), 0 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 06:51:03,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39409 states to 39409 states and 58032 transitions. [2022-01-10 06:51:03,982 INFO L78 Accepts]: Start accepts. Automaton has 39409 states and 58032 transitions. Word has length 84 [2022-01-10 06:51:03,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:51:03,982 INFO L470 AbstractCegarLoop]: Abstraction has 39409 states and 58032 transitions. [2022-01-10 06:51:03,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 06:51:03,983 INFO L276 IsEmpty]: Start isEmpty. Operand 39409 states and 58032 transitions. [2022-01-10 06:51:03,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-10 06:51:03,984 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:51:03,984 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] [2022-01-10 06:51:03,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-01-10 06:51:04,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:51:04,191 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:51:04,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:51:04,192 INFO L85 PathProgramCache]: Analyzing trace with hash 662393451, now seen corresponding path program 1 times [2022-01-10 06:51:04,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:51:04,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [912649990] [2022-01-10 06:51:04,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:51:04,192 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:51:04,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:51:04,193 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:51:04,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-01-10 06:51:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:51:04,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:51:04,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:51:04,491 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 06:51:04,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:51:04,491 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:51:04,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [912649990] [2022-01-10 06:51:04,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [912649990] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:51:04,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:51:04,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:51:04,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516664811] [2022-01-10 06:51:04,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:51:04,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:51:04,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:51:04,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:51:04,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:51:04,493 INFO L87 Difference]: Start difference. First operand 39409 states and 58032 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) 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 06:51:06,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:51:06,082 INFO L93 Difference]: Finished difference Result 95831 states and 141140 transitions. [2022-01-10 06:51:06,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:51:06,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) 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 06:51:06,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:51:06,182 INFO L225 Difference]: With dead ends: 95831 [2022-01-10 06:51:06,182 INFO L226 Difference]: Without dead ends: 56469 [2022-01-10 06:51:06,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 83 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 06:51:06,227 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 101 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:51:06,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 336 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:51:06,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56469 states. [2022-01-10 06:51:07,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56469 to 56467. [2022-01-10 06:51:07,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56467 states, 56466 states have (on average 1.4664045620373323) internal successors, (82802), 56466 states have internal predecessors, (82802), 0 states have call successors, (0), 0 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 06:51:08,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56467 states to 56467 states and 82802 transitions. [2022-01-10 06:51:08,000 INFO L78 Accepts]: Start accepts. Automaton has 56467 states and 82802 transitions. Word has length 85 [2022-01-10 06:51:08,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:51:08,001 INFO L470 AbstractCegarLoop]: Abstraction has 56467 states and 82802 transitions. [2022-01-10 06:51:08,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) 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 06:51:08,001 INFO L276 IsEmpty]: Start isEmpty. Operand 56467 states and 82802 transitions. [2022-01-10 06:51:08,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 06:51:08,028 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:51:08,028 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:51:08,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-01-10 06:51:08,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:51:08,236 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:51:08,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:51:08,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1460670259, now seen corresponding path program 1 times [2022-01-10 06:51:08,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:51:08,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898659458] [2022-01-10 06:51:08,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:51:08,238 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:51:08,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:51:08,239 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:51:08,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-01-10 06:51:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:51:08,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:51:08,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:51:09,817 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:51:09,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:51:10,249 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:51:10,250 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:51:10,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898659458] [2022-01-10 06:51:10,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898659458] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:51:10,250 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:51:10,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2022-01-10 06:51:10,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104953472] [2022-01-10 06:51:10,250 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:51:10,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-10 06:51:10,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:51:10,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-10 06:51:10,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-01-10 06:51:10,251 INFO L87 Difference]: Start difference. First operand 56467 states and 82802 transitions. Second operand has 16 states, 16 states have (on average 13.4375) internal successors, (215), 15 states have internal predecessors, (215), 0 states have call successors, (0), 0 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 06:51:12,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:51:12,113 INFO L93 Difference]: Finished difference Result 103734 states and 152046 transitions. [2022-01-10 06:51:12,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 06:51:12,114 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.4375) internal successors, (215), 15 states have internal predecessors, (215), 0 states have call successors, (0), 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 116 [2022-01-10 06:51:12,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:51:12,220 INFO L225 Difference]: With dead ends: 103734 [2022-01-10 06:51:12,221 INFO L226 Difference]: Without dead ends: 63796 [2022-01-10 06:51:12,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2022-01-10 06:51:12,255 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 442 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 401 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:51:12,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [442 Valid, 2099 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 257 Invalid, 0 Unknown, 401 Unchecked, 0.1s Time] [2022-01-10 06:51:12,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63796 states. [2022-01-10 06:51:14,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63796 to 56745. [2022-01-10 06:51:14,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56745 states, 56744 states have (on average 1.4661462004793457) internal successors, (83195), 56744 states have internal predecessors, (83195), 0 states have call successors, (0), 0 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 06:51:14,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56745 states to 56745 states and 83195 transitions. [2022-01-10 06:51:14,330 INFO L78 Accepts]: Start accepts. Automaton has 56745 states and 83195 transitions. Word has length 116 [2022-01-10 06:51:14,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:51:14,331 INFO L470 AbstractCegarLoop]: Abstraction has 56745 states and 83195 transitions. [2022-01-10 06:51:14,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.4375) internal successors, (215), 15 states have internal predecessors, (215), 0 states have call successors, (0), 0 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 06:51:14,331 INFO L276 IsEmpty]: Start isEmpty. Operand 56745 states and 83195 transitions. [2022-01-10 06:51:14,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 06:51:14,354 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:51:14,354 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:51:14,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-01-10 06:51:14,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:51:14,562 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:51:14,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:51:14,563 INFO L85 PathProgramCache]: Analyzing trace with hash -199753009, now seen corresponding path program 1 times [2022-01-10 06:51:14,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:51:14,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859630557] [2022-01-10 06:51:14,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:51:14,563 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:51:14,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:51:14,565 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:51:14,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-01-10 06:51:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:51:14,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 06:51:14,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:51:15,104 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-01-10 06:51:15,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:51:15,105 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:51:15,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859630557] [2022-01-10 06:51:15,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859630557] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:51:15,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:51:15,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:51:15,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87475500] [2022-01-10 06:51:15,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:51:15,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:51:15,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:51:15,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:51:15,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:51:15,107 INFO L87 Difference]: Start difference. First operand 56745 states and 83195 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) 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 06:51:16,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:51:16,566 INFO L93 Difference]: Finished difference Result 96687 states and 142084 transitions. [2022-01-10 06:51:16,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 06:51:16,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) 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 116 [2022-01-10 06:51:16,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:51:16,651 INFO L225 Difference]: With dead ends: 96687 [2022-01-10 06:51:16,652 INFO L226 Difference]: Without dead ends: 56749 [2022-01-10 06:51:16,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:51:16,688 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 42 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 103 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:51:16,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 632 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 103 Unchecked, 0.1s Time] [2022-01-10 06:51:16,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56749 states. [2022-01-10 06:51:18,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56749 to 56745. [2022-01-10 06:51:18,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56745 states, 56744 states have (on average 1.4661285774707458) internal successors, (83194), 56744 states have internal predecessors, (83194), 0 states have call successors, (0), 0 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 06:51:18,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56745 states to 56745 states and 83194 transitions. [2022-01-10 06:51:18,478 INFO L78 Accepts]: Start accepts. Automaton has 56745 states and 83194 transitions. Word has length 116 [2022-01-10 06:51:18,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:51:18,478 INFO L470 AbstractCegarLoop]: Abstraction has 56745 states and 83194 transitions. [2022-01-10 06:51:18,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) 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 06:51:18,479 INFO L276 IsEmpty]: Start isEmpty. Operand 56745 states and 83194 transitions. [2022-01-10 06:51:18,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 06:51:18,507 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:51:18,508 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:51:18,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-01-10 06:51:18,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:51:18,715 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:51:18,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:51:18,716 INFO L85 PathProgramCache]: Analyzing trace with hash 993296039, now seen corresponding path program 1 times [2022-01-10 06:51:18,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:51:18,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485039654] [2022-01-10 06:51:18,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:51:18,716 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:51:18,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:51:18,717 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:51:18,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-01-10 06:51:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:51:18,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:51:18,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:51:19,413 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:51:19,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:51:20,166 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:51:20,166 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:51:20,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485039654] [2022-01-10 06:51:20,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485039654] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:51:20,167 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:51:20,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2022-01-10 06:51:20,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767027534] [2022-01-10 06:51:20,167 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:51:20,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-10 06:51:20,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:51:20,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-10 06:51:20,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-01-10 06:51:20,168 INFO L87 Difference]: Start difference. First operand 56745 states and 83194 transitions. Second operand has 16 states, 16 states have (on average 12.6875) internal successors, (203), 15 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:51:22,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:51:22,501 INFO L93 Difference]: Finished difference Result 103135 states and 151271 transitions. [2022-01-10 06:51:22,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 06:51:22,501 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 12.6875) internal successors, (203), 15 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-01-10 06:51:22,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:51:22,643 INFO L225 Difference]: With dead ends: 103135 [2022-01-10 06:51:22,643 INFO L226 Difference]: Without dead ends: 95965 [2022-01-10 06:51:22,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-01-10 06:51:22,670 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 267 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 141 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:51:22,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 1747 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 341 Invalid, 0 Unknown, 141 Unchecked, 0.1s Time] [2022-01-10 06:51:22,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95965 states. [2022-01-10 06:51:25,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95965 to 89465. [2022-01-10 06:51:25,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89465 states, 89464 states have (on average 1.4580836984708934) internal successors, (130446), 89464 states have internal predecessors, (130446), 0 states have call successors, (0), 0 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 06:51:25,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89465 states to 89465 states and 130446 transitions. [2022-01-10 06:51:25,820 INFO L78 Accepts]: Start accepts. Automaton has 89465 states and 130446 transitions. Word has length 116 [2022-01-10 06:51:25,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:51:25,820 INFO L470 AbstractCegarLoop]: Abstraction has 89465 states and 130446 transitions. [2022-01-10 06:51:25,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.6875) internal successors, (203), 15 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:51:25,821 INFO L276 IsEmpty]: Start isEmpty. Operand 89465 states and 130446 transitions. [2022-01-10 06:51:25,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 06:51:25,852 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:51:25,853 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:51:25,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-01-10 06:51:26,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:51:26,053 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:51:26,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:51:26,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1241442533, now seen corresponding path program 1 times [2022-01-10 06:51:26,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:51:26,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659453150] [2022-01-10 06:51:26,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:51:26,055 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:51:26,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:51:26,056 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:51:26,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-01-10 06:51:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:51:26,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 06:51:26,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:51:26,614 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-10 06:51:26,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:51:26,614 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:51:26,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659453150] [2022-01-10 06:51:26,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659453150] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:51:26,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:51:26,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:51:26,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713422995] [2022-01-10 06:51:26,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:51:26,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:51:26,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:51:26,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:51:26,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:51:26,615 INFO L87 Difference]: Start difference. First operand 89465 states and 130446 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 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 06:51:28,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:51:28,945 INFO L93 Difference]: Finished difference Result 100051 states and 146069 transitions. [2022-01-10 06:51:28,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 06:51:28,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 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 116 [2022-01-10 06:51:28,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:51:29,080 INFO L225 Difference]: With dead ends: 100051 [2022-01-10 06:51:29,080 INFO L226 Difference]: Without dead ends: 89489 [2022-01-10 06:51:29,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:51:29,106 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 72 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:51:29,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 548 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 64 Unchecked, 0.0s Time] [2022-01-10 06:51:29,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89489 states. [2022-01-10 06:51:31,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89489 to 89481. [2022-01-10 06:51:31,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89481 states, 89480 states have (on average 1.4580576665176577) internal successors, (130467), 89480 states have internal predecessors, (130467), 0 states have call successors, (0), 0 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 06:51:32,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89481 states to 89481 states and 130467 transitions. [2022-01-10 06:51:32,168 INFO L78 Accepts]: Start accepts. Automaton has 89481 states and 130467 transitions. Word has length 116 [2022-01-10 06:51:32,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:51:32,169 INFO L470 AbstractCegarLoop]: Abstraction has 89481 states and 130467 transitions. [2022-01-10 06:51:32,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 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 06:51:32,169 INFO L276 IsEmpty]: Start isEmpty. Operand 89481 states and 130467 transitions. [2022-01-10 06:51:32,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 06:51:32,198 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:51:32,198 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:51:32,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-01-10 06:51:32,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:51:32,405 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:51:32,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:51:32,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1581754227, now seen corresponding path program 1 times [2022-01-10 06:51:32,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:51:32,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612313695] [2022-01-10 06:51:32,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:51:32,406 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:51:32,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:51:32,407 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:51:32,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-01-10 06:51:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:51:32,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 06:51:32,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:51:33,581 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:51:33,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:51:34,082 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:51:34,083 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:51:34,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612313695] [2022-01-10 06:51:34,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612313695] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:51:34,083 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:51:34,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2022-01-10 06:51:34,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748717017] [2022-01-10 06:51:34,083 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:51:34,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-10 06:51:34,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:51:34,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-10 06:51:34,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-01-10 06:51:34,084 INFO L87 Difference]: Start difference. First operand 89481 states and 130467 transitions. Second operand has 16 states, 16 states have (on average 13.9375) internal successors, (223), 15 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:51:38,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:51:38,584 INFO L93 Difference]: Finished difference Result 203623 states and 298327 transitions. [2022-01-10 06:51:38,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 06:51:38,584 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 13.9375) internal successors, (223), 15 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-01-10 06:51:38,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:51:38,902 INFO L225 Difference]: With dead ends: 203623 [2022-01-10 06:51:38,902 INFO L226 Difference]: Without dead ends: 172317 [2022-01-10 06:51:38,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2022-01-10 06:51:38,984 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 499 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 3728 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 852 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 06:51:38,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [499 Valid, 3728 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 572 Invalid, 0 Unknown, 852 Unchecked, 0.3s Time] [2022-01-10 06:51:39,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172317 states. [2022-01-10 06:51:44,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172317 to 154871. [2022-01-10 06:51:44,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154871 states, 154870 states have (on average 1.45452960547556) internal successors, (225263), 154870 states have internal predecessors, (225263), 0 states have call successors, (0), 0 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 06:51:45,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154871 states to 154871 states and 225263 transitions. [2022-01-10 06:51:45,218 INFO L78 Accepts]: Start accepts. Automaton has 154871 states and 225263 transitions. Word has length 116 [2022-01-10 06:51:45,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:51:45,218 INFO L470 AbstractCegarLoop]: Abstraction has 154871 states and 225263 transitions. [2022-01-10 06:51:45,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 13.9375) internal successors, (223), 15 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:51:45,218 INFO L276 IsEmpty]: Start isEmpty. Operand 154871 states and 225263 transitions. [2022-01-10 06:51:45,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 06:51:45,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:51:45,283 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:51:45,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-01-10 06:51:45,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:51:45,492 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:51:45,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:51:45,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1934842609, now seen corresponding path program 1 times [2022-01-10 06:51:45,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:51:45,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186445044] [2022-01-10 06:51:45,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:51:45,493 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:51:45,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:51:45,494 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:51:45,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-01-10 06:51:45,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:51:45,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 5 conjunts are in the unsatisfiable core [2022-01-10 06:51:45,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:51:46,015 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-10 06:51:46,015 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:51:46,015 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:51:46,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186445044] [2022-01-10 06:51:46,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186445044] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:51:46,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:51:46,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:51:46,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889501265] [2022-01-10 06:51:46,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:51:46,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:51:46,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:51:46,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:51:46,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:51:46,017 INFO L87 Difference]: Start difference. First operand 154871 states and 225263 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 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 06:51:50,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:51:50,148 INFO L93 Difference]: Finished difference Result 197936 states and 288302 transitions. [2022-01-10 06:51:50,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 06:51:50,148 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 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 116 [2022-01-10 06:51:50,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:51:50,485 INFO L225 Difference]: With dead ends: 197936 [2022-01-10 06:51:50,485 INFO L226 Difference]: Without dead ends: 154878 [2022-01-10 06:51:50,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:51:50,559 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 75 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:51:50,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 449 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 32 Unchecked, 0.0s Time] [2022-01-10 06:51:50,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154878 states.