/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 02:04:22,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 02:04:22,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 02:04:22,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 02:04:22,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 02:04:22,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 02:04:22,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 02:04:22,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 02:04:22,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 02:04:22,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 02:04:22,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 02:04:22,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 02:04:22,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 02:04:22,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 02:04:22,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 02:04:22,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 02:04:22,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 02:04:22,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 02:04:22,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 02:04:22,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 02:04:22,447 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 02:04:22,473 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 02:04:22,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 02:04:22,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 02:04:22,474 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 02:04:22,474 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 02:04:22,474 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 02:04:22,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 02:04:22,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 02:04:22,475 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 02:04:22,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 02:04:22,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 02:04:22,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 02:04:22,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 02:04:22,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 02:04:22,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 02:04:22,475 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 02:04:22,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 02:04:22,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 02:04:22,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 02:04:22,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 02:04:22,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 02:04:22,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:04:22,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 02:04:22,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 02:04:22,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 02:04:22,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 02:04:22,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 02:04:22,476 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 02:04:22,476 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 02:04:22,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 02:04:22,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 02:04:22,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 02:04:22,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 02:04:22,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 02:04:22,682 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 02:04:22,682 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 02:04:22,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-1.c [2022-01-10 02:04:22,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946704bf0/6f51030f7a02462d9f05a4cbba981d8f/FLAGf257db68b [2022-01-10 02:04:23,433 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 02:04:23,433 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-1.c [2022-01-10 02:04:23,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946704bf0/6f51030f7a02462d9f05a4cbba981d8f/FLAGf257db68b [2022-01-10 02:04:23,762 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/946704bf0/6f51030f7a02462d9f05a4cbba981d8f [2022-01-10 02:04:23,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 02:04:23,767 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 02:04:23,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 02:04:23,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 02:04:23,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 02:04:23,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:04:23" (1/1) ... [2022-01-10 02:04:23,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@601fe016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:23, skipping insertion in model container [2022-01-10 02:04:23,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:04:23" (1/1) ... [2022-01-10 02:04:23,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 02:04:23,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 02:04:25,155 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-1.c[382357,382370] [2022-01-10 02:04:25,170 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-1.c[383339,383352] [2022-01-10 02:04:25,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:04:25,336 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 02:04:25,944 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-1.c[382357,382370] [2022-01-10 02:04:25,951 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-1.c[383339,383352] [2022-01-10 02:04:25,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:04:26,012 INFO L208 MainTranslator]: Completed translation [2022-01-10 02:04:26,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:26 WrapperNode [2022-01-10 02:04:26,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 02:04:26,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 02:04:26,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 02:04:26,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 02:04:26,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:26" (1/1) ... [2022-01-10 02:04:26,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:26" (1/1) ... [2022-01-10 02:04:26,312 INFO L137 Inliner]: procedures = 56, calls = 60, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 12856 [2022-01-10 02:04:26,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 02:04:26,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 02:04:26,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 02:04:26,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 02:04:26,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:26" (1/1) ... [2022-01-10 02:04:26,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:26" (1/1) ... [2022-01-10 02:04:26,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:26" (1/1) ... [2022-01-10 02:04:26,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:26" (1/1) ... [2022-01-10 02:04:26,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:26" (1/1) ... [2022-01-10 02:04:26,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:26" (1/1) ... [2022-01-10 02:04:26,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:26" (1/1) ... [2022-01-10 02:04:26,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 02:04:26,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 02:04:26,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 02:04:26,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 02:04:26,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:26" (1/1) ... [2022-01-10 02:04:26,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:04:26,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 02:04:26,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 02:04:26,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 02:04:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 02:04:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-01-10 02:04:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-01-10 02:04:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-01-10 02:04:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-01-10 02:04:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-01-10 02:04:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-01-10 02:04:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-01-10 02:04:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-01-10 02:04:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-01-10 02:04:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-01-10 02:04:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-01-10 02:04:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-01-10 02:04:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-01-10 02:04:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-01-10 02:04:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 02:04:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 02:04:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 02:04:26,937 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 02:04:26,938 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 02:04:31,880 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 02:04:31,907 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 02:04:31,907 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-01-10 02:04:31,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:04:31 BoogieIcfgContainer [2022-01-10 02:04:31,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 02:04:31,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 02:04:31,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 02:04:31,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 02:04:31,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:04:23" (1/3) ... [2022-01-10 02:04:31,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d4c4906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:04:31, skipping insertion in model container [2022-01-10 02:04:31,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:04:26" (2/3) ... [2022-01-10 02:04:31,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d4c4906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:04:31, skipping insertion in model container [2022-01-10 02:04:31,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:04:31" (3/3) ... [2022-01-10 02:04:31,916 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.06.cil-1.c [2022-01-10 02:04:31,919 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 02:04:31,920 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 02:04:31,956 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 02:04:31,961 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 02:04:31,961 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 02:04:31,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 2423 states, 2391 states have (on average 1.8515265579255542) internal successors, (4427), 2396 states have internal predecessors, (4427), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2022-01-10 02:04:32,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:04:32,008 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:32,009 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:04:32,009 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:32,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:32,013 INFO L85 PathProgramCache]: Analyzing trace with hash 787057146, now seen corresponding path program 1 times [2022-01-10 02:04:32,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:32,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350168690] [2022-01-10 02:04:32,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:32,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:32,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:32,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:04:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:32,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:04:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:32,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:04:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:32,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:04:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:32,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:04:32,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:32,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350168690] [2022-01-10 02:04:32,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350168690] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:32,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:32,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 02:04:32,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558574064] [2022-01-10 02:04:32,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:32,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 02:04:32,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:32,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 02:04:32,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 02:04:32,366 INFO L87 Difference]: Start difference. First operand has 2423 states, 2391 states have (on average 1.8515265579255542) internal successors, (4427), 2396 states have internal predecessors, (4427), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:33,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:33,202 INFO L93 Difference]: Finished difference Result 4911 states and 9054 transitions. [2022-01-10 02:04:33,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 02:04:33,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:04:33,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:33,227 INFO L225 Difference]: With dead ends: 4911 [2022-01-10 02:04:33,227 INFO L226 Difference]: Without dead ends: 2431 [2022-01-10 02:04:33,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 02:04:33,241 INFO L933 BasicCegarLoop]: 4417 mSDtfsCounter, 596 mSDsluCounter, 12327 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 16744 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:33,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [614 Valid, 16744 Invalid, 458 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 02:04:33,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2022-01-10 02:04:33,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2355. [2022-01-10 02:04:33,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 2325 states have (on average 1.8391397849462365) internal successors, (4276), 2328 states have internal predecessors, (4276), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-01-10 02:04:33,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 4318 transitions. [2022-01-10 02:04:33,355 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 4318 transitions. Word has length 113 [2022-01-10 02:04:33,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:33,356 INFO L470 AbstractCegarLoop]: Abstraction has 2355 states and 4318 transitions. [2022-01-10 02:04:33,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:33,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 4318 transitions. [2022-01-10 02:04:33,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:04:33,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:33,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:04:33,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 02:04:33,363 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:33,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:33,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1110439620, now seen corresponding path program 1 times [2022-01-10 02:04:33,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:33,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547504708] [2022-01-10 02:04:33,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:33,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:33,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:33,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:04:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:33,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:04:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:33,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:04:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:33,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:04:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:33,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:04:33,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:33,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547504708] [2022-01-10 02:04:33,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547504708] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:33,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:33,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:33,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731942557] [2022-01-10 02:04:33,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:33,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:33,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:33,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:33,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:33,538 INFO L87 Difference]: Start difference. First operand 2355 states and 4318 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:35,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:35,081 INFO L93 Difference]: Finished difference Result 2966 states and 5298 transitions. [2022-01-10 02:04:35,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:04:35,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:04:35,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:35,092 INFO L225 Difference]: With dead ends: 2966 [2022-01-10 02:04:35,093 INFO L226 Difference]: Without dead ends: 2746 [2022-01-10 02:04:35,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:04:35,096 INFO L933 BasicCegarLoop]: 4564 mSDtfsCounter, 4790 mSDsluCounter, 17021 mSDsCounter, 0 mSdLazyCounter, 1877 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4803 SdHoareTripleChecker+Valid, 21585 SdHoareTripleChecker+Invalid, 1950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:35,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4803 Valid, 21585 Invalid, 1950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1877 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 02:04:35,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2022-01-10 02:04:35,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2583. [2022-01-10 02:04:35,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2583 states, 2528 states have (on average 1.8184335443037976) internal successors, (4597), 2533 states have internal predecessors, (4597), 39 states have call successors, (39), 13 states have call predecessors, (39), 14 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2022-01-10 02:04:35,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 4680 transitions. [2022-01-10 02:04:35,163 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 4680 transitions. Word has length 113 [2022-01-10 02:04:35,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:35,163 INFO L470 AbstractCegarLoop]: Abstraction has 2583 states and 4680 transitions. [2022-01-10 02:04:35,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:35,164 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 4680 transitions. [2022-01-10 02:04:35,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:04:35,165 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:35,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:04:35,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 02:04:35,166 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:35,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:35,166 INFO L85 PathProgramCache]: Analyzing trace with hash 240945598, now seen corresponding path program 1 times [2022-01-10 02:04:35,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:35,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71215424] [2022-01-10 02:04:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:35,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:35,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:35,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:04:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:35,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:04:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:35,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:04:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:35,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:04:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:35,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:04:35,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:35,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71215424] [2022-01-10 02:04:35,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71215424] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:35,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:35,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:35,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375289046] [2022-01-10 02:04:35,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:35,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:35,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:35,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:35,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:35,298 INFO L87 Difference]: Start difference. First operand 2583 states and 4680 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:36,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:36,844 INFO L93 Difference]: Finished difference Result 3740 states and 6520 transitions. [2022-01-10 02:04:36,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:04:36,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:04:36,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:36,859 INFO L225 Difference]: With dead ends: 3740 [2022-01-10 02:04:36,860 INFO L226 Difference]: Without dead ends: 3294 [2022-01-10 02:04:36,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:04:36,869 INFO L933 BasicCegarLoop]: 4511 mSDtfsCounter, 4814 mSDsluCounter, 16958 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4827 SdHoareTripleChecker+Valid, 21469 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:36,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4827 Valid, 21469 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 02:04:36,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2022-01-10 02:04:36,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3003. [2022-01-10 02:04:36,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3003 states, 2904 states have (on average 1.7837465564738293) internal successors, (5180), 2911 states have internal predecessors, (5180), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2022-01-10 02:04:36,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3003 states to 3003 states and 5333 transitions. [2022-01-10 02:04:36,959 INFO L78 Accepts]: Start accepts. Automaton has 3003 states and 5333 transitions. Word has length 113 [2022-01-10 02:04:36,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:36,959 INFO L470 AbstractCegarLoop]: Abstraction has 3003 states and 5333 transitions. [2022-01-10 02:04:36,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:36,960 INFO L276 IsEmpty]: Start isEmpty. Operand 3003 states and 5333 transitions. [2022-01-10 02:04:36,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:04:36,962 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:36,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:04:36,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 02:04:36,963 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:36,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:36,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1378029316, now seen corresponding path program 1 times [2022-01-10 02:04:36,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:36,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111565746] [2022-01-10 02:04:36,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:36,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:36,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:37,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:04:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:37,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:04:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:37,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:04:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:37,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:04:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:37,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:04:37,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:37,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111565746] [2022-01-10 02:04:37,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111565746] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:37,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:37,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:37,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535496036] [2022-01-10 02:04:37,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:37,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:37,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:37,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:37,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:37,067 INFO L87 Difference]: Start difference. First operand 3003 states and 5333 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:38,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:38,690 INFO L93 Difference]: Finished difference Result 5254 states and 8905 transitions. [2022-01-10 02:04:38,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:04:38,690 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:04:38,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:38,706 INFO L225 Difference]: With dead ends: 5254 [2022-01-10 02:04:38,707 INFO L226 Difference]: Without dead ends: 4388 [2022-01-10 02:04:38,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:04:38,712 INFO L933 BasicCegarLoop]: 4555 mSDtfsCounter, 4789 mSDsluCounter, 17021 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 21576 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:38,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4802 Valid, 21576 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-10 02:04:38,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4388 states. [2022-01-10 02:04:38,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4388 to 3845. [2022-01-10 02:04:38,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3845 states, 3658 states have (on average 1.7353745215965009) internal successors, (6348), 3669 states have internal predecessors, (6348), 129 states have call successors, (129), 49 states have call predecessors, (129), 56 states have return successors, (170), 134 states have call predecessors, (170), 127 states have call successors, (170) [2022-01-10 02:04:38,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3845 states to 3845 states and 6647 transitions. [2022-01-10 02:04:38,889 INFO L78 Accepts]: Start accepts. Automaton has 3845 states and 6647 transitions. Word has length 113 [2022-01-10 02:04:38,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:38,889 INFO L470 AbstractCegarLoop]: Abstraction has 3845 states and 6647 transitions. [2022-01-10 02:04:38,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:38,890 INFO L276 IsEmpty]: Start isEmpty. Operand 3845 states and 6647 transitions. [2022-01-10 02:04:38,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:04:38,891 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:38,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:04:38,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 02:04:38,892 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:38,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:38,892 INFO L85 PathProgramCache]: Analyzing trace with hash 2033428990, now seen corresponding path program 1 times [2022-01-10 02:04:38,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:38,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675974694] [2022-01-10 02:04:38,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:38,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:38,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:38,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:04:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:38,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:04:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:38,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:04:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:38,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:04:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:39,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:04:39,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:39,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675974694] [2022-01-10 02:04:39,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675974694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:39,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:39,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:39,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575520089] [2022-01-10 02:04:39,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:39,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:39,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:39,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:39,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:39,002 INFO L87 Difference]: Start difference. First operand 3845 states and 6647 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:40,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:40,477 INFO L93 Difference]: Finished difference Result 8280 states and 13689 transitions. [2022-01-10 02:04:40,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:04:40,477 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:04:40,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:40,503 INFO L225 Difference]: With dead ends: 8280 [2022-01-10 02:04:40,503 INFO L226 Difference]: Without dead ends: 6572 [2022-01-10 02:04:40,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:04:40,514 INFO L933 BasicCegarLoop]: 4552 mSDtfsCounter, 4789 mSDsluCounter, 17021 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 21573 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:40,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4802 Valid, 21573 Invalid, 1943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1867 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 02:04:40,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6572 states. [2022-01-10 02:04:40,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6572 to 5535. [2022-01-10 02:04:40,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5535 states, 5172 states have (on average 1.6805877803557618) internal successors, (8692), 5191 states have internal predecessors, (8692), 249 states have call successors, (249), 97 states have call predecessors, (249), 112 states have return successors, (360), 262 states have call predecessors, (360), 247 states have call successors, (360) [2022-01-10 02:04:40,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5535 states to 5535 states and 9301 transitions. [2022-01-10 02:04:40,696 INFO L78 Accepts]: Start accepts. Automaton has 5535 states and 9301 transitions. Word has length 113 [2022-01-10 02:04:40,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:40,697 INFO L470 AbstractCegarLoop]: Abstraction has 5535 states and 9301 transitions. [2022-01-10 02:04:40,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:40,698 INFO L276 IsEmpty]: Start isEmpty. Operand 5535 states and 9301 transitions. [2022-01-10 02:04:40,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:04:40,702 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:40,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:04:40,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 02:04:40,703 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:40,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:40,705 INFO L85 PathProgramCache]: Analyzing trace with hash 2004928700, now seen corresponding path program 1 times [2022-01-10 02:04:40,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:40,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753184654] [2022-01-10 02:04:40,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:40,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:40,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:40,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:04:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:40,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:04:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:40,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:04:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:40,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:04:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:40,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:04:40,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:40,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753184654] [2022-01-10 02:04:40,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753184654] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:40,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:40,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:40,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058915863] [2022-01-10 02:04:40,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:40,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:40,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:40,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:40,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:40,810 INFO L87 Difference]: Start difference. First operand 5535 states and 9301 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:42,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:42,430 INFO L93 Difference]: Finished difference Result 14330 states and 23313 transitions. [2022-01-10 02:04:42,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:04:42,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:04:42,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:42,468 INFO L225 Difference]: With dead ends: 14330 [2022-01-10 02:04:42,468 INFO L226 Difference]: Without dead ends: 10932 [2022-01-10 02:04:42,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:04:42,480 INFO L933 BasicCegarLoop]: 4549 mSDtfsCounter, 4789 mSDsluCounter, 17021 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 21570 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:42,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4802 Valid, 21570 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1861 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 02:04:42,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10932 states. [2022-01-10 02:04:42,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10932 to 8929. [2022-01-10 02:04:42,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8929 states, 8214 states have (on average 1.6313610908205503) internal successors, (13400), 8249 states have internal predecessors, (13400), 489 states have call successors, (489), 193 states have call predecessors, (489), 224 states have return successors, (794), 518 states have call predecessors, (794), 487 states have call successors, (794) [2022-01-10 02:04:42,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8929 states to 8929 states and 14683 transitions. [2022-01-10 02:04:42,771 INFO L78 Accepts]: Start accepts. Automaton has 8929 states and 14683 transitions. Word has length 113 [2022-01-10 02:04:42,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:42,772 INFO L470 AbstractCegarLoop]: Abstraction has 8929 states and 14683 transitions. [2022-01-10 02:04:42,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:42,772 INFO L276 IsEmpty]: Start isEmpty. Operand 8929 states and 14683 transitions. [2022-01-10 02:04:42,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:04:42,778 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:42,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:04:42,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 02:04:42,778 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:42,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:42,779 INFO L85 PathProgramCache]: Analyzing trace with hash 64346686, now seen corresponding path program 1 times [2022-01-10 02:04:42,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:42,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637234048] [2022-01-10 02:04:42,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:42,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:42,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:42,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:04:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:42,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:04:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:42,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:04:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:42,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:04:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:42,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:04:42,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:42,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637234048] [2022-01-10 02:04:42,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637234048] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:42,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:42,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:42,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931184756] [2022-01-10 02:04:42,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:42,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:42,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:42,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:42,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:42,883 INFO L87 Difference]: Start difference. First operand 8929 states and 14683 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:44,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:44,762 INFO L93 Difference]: Finished difference Result 26428 states and 42749 transitions. [2022-01-10 02:04:44,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:04:44,763 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:04:44,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:44,818 INFO L225 Difference]: With dead ends: 26428 [2022-01-10 02:04:44,818 INFO L226 Difference]: Without dead ends: 19636 [2022-01-10 02:04:44,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:04:44,843 INFO L933 BasicCegarLoop]: 4546 mSDtfsCounter, 4789 mSDsluCounter, 17021 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 21567 SdHoareTripleChecker+Invalid, 1931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:44,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4802 Valid, 21567 Invalid, 1931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1855 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 02:04:44,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19636 states. [2022-01-10 02:04:45,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19636 to 15747. [2022-01-10 02:04:45,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15747 states, 14328 states have (on average 1.5954773869346734) internal successors, (22860), 14395 states have internal predecessors, (22860), 969 states have call successors, (969), 385 states have call predecessors, (969), 448 states have return successors, (1824), 1030 states have call predecessors, (1824), 967 states have call successors, (1824) [2022-01-10 02:04:45,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15747 states to 15747 states and 25653 transitions. [2022-01-10 02:04:45,436 INFO L78 Accepts]: Start accepts. Automaton has 15747 states and 25653 transitions. Word has length 113 [2022-01-10 02:04:45,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:45,437 INFO L470 AbstractCegarLoop]: Abstraction has 15747 states and 25653 transitions. [2022-01-10 02:04:45,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:45,438 INFO L276 IsEmpty]: Start isEmpty. Operand 15747 states and 25653 transitions. [2022-01-10 02:04:45,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:04:45,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:45,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:04:45,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 02:04:45,449 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:45,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:45,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1941409916, now seen corresponding path program 1 times [2022-01-10 02:04:45,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:45,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334336223] [2022-01-10 02:04:45,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:45,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:45,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:45,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:04:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:45,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:04:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:45,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:04:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:45,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:04:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:45,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:04:45,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:45,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334336223] [2022-01-10 02:04:45,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334336223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:45,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:45,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:45,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159262600] [2022-01-10 02:04:45,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:45,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:45,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:45,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:45,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:45,529 INFO L87 Difference]: Start difference. First operand 15747 states and 25653 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:48,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:48,518 INFO L93 Difference]: Finished difference Result 56574 states and 91179 transitions. [2022-01-10 02:04:48,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 02:04:48,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:04:48,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:48,655 INFO L225 Difference]: With dead ends: 56574 [2022-01-10 02:04:48,656 INFO L226 Difference]: Without dead ends: 42964 [2022-01-10 02:04:48,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-01-10 02:04:48,703 INFO L933 BasicCegarLoop]: 4539 mSDtfsCounter, 5044 mSDsluCounter, 17013 mSDsCounter, 0 mSdLazyCounter, 1839 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5064 SdHoareTripleChecker+Valid, 21552 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:48,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5064 Valid, 21552 Invalid, 1923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1839 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 02:04:48,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42964 states. [2022-01-10 02:04:49,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42964 to 29253. [2022-01-10 02:04:49,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29253 states, 26490 states have (on average 1.575839939599849) internal successors, (41744), 26621 states have internal predecessors, (41744), 1865 states have call successors, (1865), 769 states have call predecessors, (1865), 896 states have return successors, (4306), 1990 states have call predecessors, (4306), 1863 states have call successors, (4306) [2022-01-10 02:04:50,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29253 states to 29253 states and 47915 transitions. [2022-01-10 02:04:50,031 INFO L78 Accepts]: Start accepts. Automaton has 29253 states and 47915 transitions. Word has length 113 [2022-01-10 02:04:50,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:50,031 INFO L470 AbstractCegarLoop]: Abstraction has 29253 states and 47915 transitions. [2022-01-10 02:04:50,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:50,031 INFO L276 IsEmpty]: Start isEmpty. Operand 29253 states and 47915 transitions. [2022-01-10 02:04:50,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:04:50,048 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:50,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:04:50,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 02:04:50,049 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:50,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:50,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1170676350, now seen corresponding path program 1 times [2022-01-10 02:04:50,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:50,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457740159] [2022-01-10 02:04:50,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:50,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:50,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:50,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:04:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:50,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:04:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:50,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:04:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:50,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:04:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:50,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:04:50,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:50,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457740159] [2022-01-10 02:04:50,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457740159] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:50,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:50,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:50,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23930537] [2022-01-10 02:04:50,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:50,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:50,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:50,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:50,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:50,138 INFO L87 Difference]: Start difference. First operand 29253 states and 47915 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:55,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:04:55,049 INFO L93 Difference]: Finished difference Result 107011 states and 175039 transitions. [2022-01-10 02:04:55,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 02:04:55,050 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:04:55,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:04:55,496 INFO L225 Difference]: With dead ends: 107011 [2022-01-10 02:04:55,497 INFO L226 Difference]: Without dead ends: 79895 [2022-01-10 02:04:55,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-01-10 02:04:55,561 INFO L933 BasicCegarLoop]: 4531 mSDtfsCounter, 4978 mSDsluCounter, 17013 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4998 SdHoareTripleChecker+Valid, 21544 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 02:04:55,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4998 Valid, 21544 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 02:04:55,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79895 states. [2022-01-10 02:04:58,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79895 to 56327. [2022-01-10 02:04:58,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56327 states, 50940 states have (on average 1.5670985473105614) internal successors, (79828), 51199 states have internal predecessors, (79828), 3593 states have call successors, (3593), 1537 states have call predecessors, (3593), 1792 states have return successors, (10664), 3846 states have call predecessors, (10664), 3591 states have call successors, (10664) [2022-01-10 02:04:58,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56327 states to 56327 states and 94085 transitions. [2022-01-10 02:04:58,504 INFO L78 Accepts]: Start accepts. Automaton has 56327 states and 94085 transitions. Word has length 113 [2022-01-10 02:04:58,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:04:58,505 INFO L470 AbstractCegarLoop]: Abstraction has 56327 states and 94085 transitions. [2022-01-10 02:04:58,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:04:58,505 INFO L276 IsEmpty]: Start isEmpty. Operand 56327 states and 94085 transitions. [2022-01-10 02:04:58,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:04:58,540 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:04:58,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:04:58,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 02:04:58,540 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:04:58,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:04:58,543 INFO L85 PathProgramCache]: Analyzing trace with hash 584400128, now seen corresponding path program 1 times [2022-01-10 02:04:58,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:04:58,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366720717] [2022-01-10 02:04:58,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:04:58,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:04:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:58,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:04:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:58,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:04:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:58,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:04:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:58,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:04:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:58,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:04:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:04:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:04:58,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:04:58,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366720717] [2022-01-10 02:04:58,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366720717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:04:58,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:04:58,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:04:58,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201689162] [2022-01-10 02:04:58,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:04:58,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:04:58,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:04:58,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:04:58,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:04:58,622 INFO L87 Difference]: Start difference. First operand 56327 states and 94085 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:07,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:05:07,447 INFO L93 Difference]: Finished difference Result 207177 states and 347363 transitions. [2022-01-10 02:05:07,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 02:05:07,448 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:05:07,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:05:08,316 INFO L225 Difference]: With dead ends: 207177 [2022-01-10 02:05:08,317 INFO L226 Difference]: Without dead ends: 152987 [2022-01-10 02:05:08,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-01-10 02:05:08,443 INFO L933 BasicCegarLoop]: 4496 mSDtfsCounter, 4951 mSDsluCounter, 16953 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4971 SdHoareTripleChecker+Valid, 21449 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 02:05:08,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4971 Valid, 21449 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 02:05:08,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152987 states. [2022-01-10 02:05:14,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152987 to 110347. [2022-01-10 02:05:14,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110347 states, 99840 states have (on average 1.563741987179487) internal successors, (156124), 100355 states have internal predecessors, (156124), 6921 states have call successors, (6921), 3073 states have call predecessors, (6921), 3584 states have return successors, (27626), 7430 states have call predecessors, (27626), 6919 states have call successors, (27626) [2022-01-10 02:05:14,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110347 states to 110347 states and 190671 transitions. [2022-01-10 02:05:14,917 INFO L78 Accepts]: Start accepts. Automaton has 110347 states and 190671 transitions. Word has length 113 [2022-01-10 02:05:14,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:05:14,918 INFO L470 AbstractCegarLoop]: Abstraction has 110347 states and 190671 transitions. [2022-01-10 02:05:14,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:14,918 INFO L276 IsEmpty]: Start isEmpty. Operand 110347 states and 190671 transitions. [2022-01-10 02:05:14,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:05:14,990 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:05:14,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:05:14,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 02:05:14,990 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:05:14,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:05:14,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1374174658, now seen corresponding path program 1 times [2022-01-10 02:05:14,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:05:14,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324076320] [2022-01-10 02:05:14,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:05:14,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:05:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:15,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:05:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:15,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:05:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:15,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:05:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:15,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:05:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:15,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:05:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:05:15,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:05:15,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324076320] [2022-01-10 02:05:15,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324076320] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:05:15,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:05:15,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:05:15,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54511504] [2022-01-10 02:05:15,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:05:15,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:05:15,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:05:15,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:05:15,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:05:15,072 INFO L87 Difference]: Start difference. First operand 110347 states and 190671 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)