/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/eca-rers2012/Problem17_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 05:34:57,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 05:34:57,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 05:34:57,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 05:34:57,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 05:34:57,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 05:34:57,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 05:34:57,723 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 05:34:57,744 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 05:34:57,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 05:34:57,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 05:34:57,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 05:34:57,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 05:34:57,746 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 05:34:57,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 05:34:57,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 05:34:57,747 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 05:34:57,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 05:34:57,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 05:34:57,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 05:34:57,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 05:34:57,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 05:34:57,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 05:34:57,749 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 05:34:57,749 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 05:34:57,749 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 05:34:57,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 05:34:57,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 05:34:57,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 05:34:57,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 05:34:57,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 05:34:57,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 05:34:57,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 05:34:57,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 05:34:57,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 05:34:57,751 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 05:34:57,751 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 05:34:57,751 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 05:34:57,752 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 05:34:57,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 05:34:57,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 05:34:57,752 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 05:34:57,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 05:34:57,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 05:34:57,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 05:34:57,997 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 05:34:57,998 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 05:34:57,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label44.c [2022-01-10 05:34:58,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7df9b30d0/967cffcca43e46718803053aa3e11172/FLAG7f56c8802 [2022-01-10 05:34:58,626 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 05:34:58,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label44.c [2022-01-10 05:34:58,644 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7df9b30d0/967cffcca43e46718803053aa3e11172/FLAG7f56c8802 [2022-01-10 05:34:58,827 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7df9b30d0/967cffcca43e46718803053aa3e11172 [2022-01-10 05:34:58,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 05:34:58,834 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 05:34:58,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 05:34:58,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 05:34:58,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 05:34:58,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:34:58" (1/1) ... [2022-01-10 05:34:58,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e88343c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:34:58, skipping insertion in model container [2022-01-10 05:34:58,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:34:58" (1/1) ... [2022-01-10 05:34:58,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 05:34:58,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 05:34:59,126 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label44.c[5354,5367] [2022-01-10 05:34:59,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 05:34:59,682 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 05:34:59,722 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label44.c[5354,5367] [2022-01-10 05:35:00,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 05:35:00,039 INFO L208 MainTranslator]: Completed translation [2022-01-10 05:35:00,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:35:00 WrapperNode [2022-01-10 05:35:00,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 05:35:00,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 05:35:00,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 05:35:00,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 05:35:00,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:35:00" (1/1) ... [2022-01-10 05:35:00,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:35:00" (1/1) ... [2022-01-10 05:35:00,197 INFO L137 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2608 [2022-01-10 05:35:00,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 05:35:00,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 05:35:00,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 05:35:00,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 05:35:00,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:35:00" (1/1) ... [2022-01-10 05:35:00,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:35:00" (1/1) ... [2022-01-10 05:35:00,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:35:00" (1/1) ... [2022-01-10 05:35:00,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:35:00" (1/1) ... [2022-01-10 05:35:00,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:35:00" (1/1) ... [2022-01-10 05:35:00,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:35:00" (1/1) ... [2022-01-10 05:35:00,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:35:00" (1/1) ... [2022-01-10 05:35:00,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 05:35:00,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 05:35:00,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 05:35:00,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 05:35:00,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:35:00" (1/1) ... [2022-01-10 05:35:00,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 05:35:00,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 05:35:00,465 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 05:35:00,467 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 05:35:00,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 05:35:00,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 05:35:00,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 05:35:00,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 05:35:00,541 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 05:35:00,542 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 05:35:27,473 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 05:35:27,486 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 05:35:27,486 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 05:35:27,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:35:27 BoogieIcfgContainer [2022-01-10 05:35:27,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 05:35:27,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 05:35:27,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 05:35:27,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 05:35:27,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:34:58" (1/3) ... [2022-01-10 05:35:27,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9128dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:35:27, skipping insertion in model container [2022-01-10 05:35:27,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:35:00" (2/3) ... [2022-01-10 05:35:27,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9128dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:35:27, skipping insertion in model container [2022-01-10 05:35:27,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:35:27" (3/3) ... [2022-01-10 05:35:27,497 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem17_label44.c [2022-01-10 05:35:27,507 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 05:35:27,507 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 05:35:27,553 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 05:35:27,560 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 05:35:27,561 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 05:35:27,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 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 05:35:27,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 05:35:27,601 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:35:27,602 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] [2022-01-10 05:35:27,603 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:35:27,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:35:27,610 INFO L85 PathProgramCache]: Analyzing trace with hash -596708735, now seen corresponding path program 1 times [2022-01-10 05:35:27,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:35:27,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428603939] [2022-01-10 05:35:27,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:35:27,624 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:35:27,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:35:27,626 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 05:35:27,626 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 05:35:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:35:27,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 05:35:27,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:35:27,868 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 05:35:27,869 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 05:35:27,869 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 05:35:27,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428603939] [2022-01-10 05:35:27,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428603939] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 05:35:27,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 05:35:27,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 05:35:27,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657231319] [2022-01-10 05:35:27,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 05:35:27,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 05:35:27,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 05:35:27,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 05:35:27,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 05:35:27,903 INFO L87 Difference]: Start difference. First operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 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 05:36:00,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 05:36:00,855 INFO L93 Difference]: Finished difference Result 1641 states and 3023 transitions. [2022-01-10 05:36:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 05:36:00,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2022-01-10 05:36:00,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 05:36:00,877 INFO L225 Difference]: With dead ends: 1641 [2022-01-10 05:36:00,877 INFO L226 Difference]: Without dead ends: 974 [2022-01-10 05:36:00,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 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 05:36:00,885 INFO L933 BasicCegarLoop]: 474 mSDtfsCounter, 453 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.8s IncrementalHoareTripleChecker+Time [2022-01-10 05:36:00,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 551 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 32.8s Time] [2022-01-10 05:36:00,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-01-10 05:36:00,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 971. [2022-01-10 05:36:00,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 970 states have (on average 1.5082474226804123) internal successors, (1463), 970 states have internal predecessors, (1463), 0 states have call successors, (0), 0 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 05:36:00,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1463 transitions. [2022-01-10 05:36:00,974 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1463 transitions. Word has length 35 [2022-01-10 05:36:00,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 05:36:00,975 INFO L470 AbstractCegarLoop]: Abstraction has 971 states and 1463 transitions. [2022-01-10 05:36:00,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 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 05:36:00,975 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1463 transitions. [2022-01-10 05:36:00,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 05:36:00,978 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 05:36:00,978 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-10 05:36:00,991 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 05:36:01,186 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 05:36:01,187 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 05:36:01,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 05:36:01,188 INFO L85 PathProgramCache]: Analyzing trace with hash -2086812812, now seen corresponding path program 1 times [2022-01-10 05:36:01,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 05:36:01,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310264738] [2022-01-10 05:36:01,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 05:36:01,190 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 05:36:01,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 05:36:01,191 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 05:36:01,193 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 05:36:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 05:36:01,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 05:36:01,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 05:36:03,019 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 05:36:03,019 INFO L328 TraceCheckSpWp]: Computing backward predicates...