/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_label49+token_ring.12.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 02:09:13,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 02:09:13,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 02:09:13,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 02:09:13,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 02:09:13,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 02:09:13,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 02:09:13,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 02:09:13,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 02:09:13,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 02:09:13,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 02:09:13,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 02:09:13,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 02:09:13,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 02:09:13,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 02:09:13,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 02:09:13,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 02:09:13,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 02:09:13,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 02:09:13,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 02:09:13,274 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 02:09:13,290 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 02:09:13,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 02:09:13,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 02:09:13,290 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 02:09:13,291 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 02:09:13,291 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 02:09:13,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 02:09:13,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 02:09:13,291 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 02:09:13,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 02:09:13,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 02:09:13,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 02:09:13,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 02:09:13,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 02:09:13,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 02:09:13,292 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 02:09:13,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 02:09:13,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 02:09:13,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 02:09:13,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 02:09:13,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 02:09:13,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:09:13,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 02:09:13,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 02:09:13,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 02:09:13,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 02:09:13,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 02:09:13,293 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 02:09:13,293 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 02:09:13,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 02:09:13,294 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 02:09:13,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 02:09:13,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 02:09:13,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 02:09:13,513 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 02:09:13,514 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 02:09:13,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.12.cil-1.c [2022-01-10 02:09:13,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64d1d1359/62ac9b88b4c143a6afb7da52aa925fda/FLAG188f7b6de [2022-01-10 02:09:14,378 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 02:09:14,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.12.cil-1.c [2022-01-10 02:09:14,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64d1d1359/62ac9b88b4c143a6afb7da52aa925fda/FLAG188f7b6de [2022-01-10 02:09:14,866 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64d1d1359/62ac9b88b4c143a6afb7da52aa925fda [2022-01-10 02:09:14,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 02:09:14,869 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 02:09:14,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 02:09:14,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 02:09:14,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 02:09:14,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:09:14" (1/1) ... [2022-01-10 02:09:14,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760f55a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:09:14, skipping insertion in model container [2022-01-10 02:09:14,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:09:14" (1/1) ... [2022-01-10 02:09:14,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 02:09:14,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 02:09:16,177 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_label49+token_ring.12.cil-1.c[380593,380606] [2022-01-10 02:09:16,201 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_label49+token_ring.12.cil-1.c[383339,383352] [2022-01-10 02:09:16,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:09:16,379 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 02:09:16,998 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_label49+token_ring.12.cil-1.c[380593,380606] [2022-01-10 02:09:17,002 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_label49+token_ring.12.cil-1.c[383339,383352] [2022-01-10 02:09:17,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:09:17,064 INFO L208 MainTranslator]: Completed translation [2022-01-10 02:09:17,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:09:17 WrapperNode [2022-01-10 02:09:17,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 02:09:17,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 02:09:17,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 02:09:17,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 02:09:17,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:09:17" (1/1) ... [2022-01-10 02:09:17,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:09:17" (1/1) ... [2022-01-10 02:09:17,435 INFO L137 Inliner]: procedures = 68, calls = 78, calls flagged for inlining = 45, calls inlined = 45, statements flattened = 13204 [2022-01-10 02:09:17,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 02:09:17,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 02:09:17,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 02:09:17,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 02:09:17,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:09:17" (1/1) ... [2022-01-10 02:09:17,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:09:17" (1/1) ... [2022-01-10 02:09:17,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:09:17" (1/1) ... [2022-01-10 02:09:17,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:09:17" (1/1) ... [2022-01-10 02:09:17,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:09:17" (1/1) ... [2022-01-10 02:09:17,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:09:17" (1/1) ... [2022-01-10 02:09:17,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:09:17" (1/1) ... [2022-01-10 02:09:17,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 02:09:17,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 02:09:17,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 02:09:17,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 02:09:17,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:09:17" (1/1) ... [2022-01-10 02:09:17,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:09:17,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 02:09:17,917 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 02:09:17,937 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 02:09:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 02:09:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-01-10 02:09:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-01-10 02:09:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-01-10 02:09:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-01-10 02:09:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-01-10 02:09:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-01-10 02:09:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-01-10 02:09:17,944 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-01-10 02:09:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-01-10 02:09:17,945 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-01-10 02:09:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-01-10 02:09:17,945 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-01-10 02:09:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-01-10 02:09:17,945 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-01-10 02:09:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 02:09:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 02:09:17,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 02:09:18,090 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 02:09:18,091 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 02:09:23,273 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 02:09:23,306 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 02:09:23,307 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-01-10 02:09:23,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:09:23 BoogieIcfgContainer [2022-01-10 02:09:23,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 02:09:23,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 02:09:23,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 02:09:23,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 02:09:23,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:09:14" (1/3) ... [2022-01-10 02:09:23,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7059bb34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:09:23, skipping insertion in model container [2022-01-10 02:09:23,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:09:17" (2/3) ... [2022-01-10 02:09:23,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7059bb34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:09:23, skipping insertion in model container [2022-01-10 02:09:23,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:09:23" (3/3) ... [2022-01-10 02:09:23,316 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.12.cil-1.c [2022-01-10 02:09:23,319 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 02:09:23,319 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 02:09:23,363 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 02:09:23,369 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 02:09:23,369 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 02:09:23,407 INFO L276 IsEmpty]: Start isEmpty. Operand has 2573 states, 2535 states have (on average 1.8433925049309665) internal successors, (4673), 2540 states have internal predecessors, (4673), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2022-01-10 02:09:23,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:09:23,426 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:09:23,426 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:23,427 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:09:23,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:09:23,430 INFO L85 PathProgramCache]: Analyzing trace with hash -354915978, now seen corresponding path program 1 times [2022-01-10 02:09:23,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:09:23,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591031786] [2022-01-10 02:09:23,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:09:23,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:09:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:23,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:09:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:23,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:09:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:23,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:09:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:23,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:09:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:23,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:09:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:23,755 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 02:09:23,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:09:23,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591031786] [2022-01-10 02:09:23,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591031786] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:09:23,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:09:23,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 02:09:23,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924822581] [2022-01-10 02:09:23,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:09:23,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 02:09:23,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:09:23,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 02:09:23,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 02:09:23,808 INFO L87 Difference]: Start difference. First operand has 2573 states, 2535 states have (on average 1.8433925049309665) internal successors, (4673), 2540 states have internal predecessors, (4673), 28 states have call successors, (28), 7 states have call predecessors, (28), 7 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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 02:09:25,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:09:25,259 INFO L93 Difference]: Finished difference Result 5281 states and 9692 transitions. [2022-01-10 02:09:25,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 02:09:25,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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 179 [2022-01-10 02:09:25,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:09:25,279 INFO L225 Difference]: With dead ends: 5281 [2022-01-10 02:09:25,279 INFO L226 Difference]: Without dead ends: 2647 [2022-01-10 02:09:25,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 02:09:25,289 INFO L933 BasicCegarLoop]: 4695 mSDtfsCounter, 1048 mSDsluCounter, 12483 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 17178 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 02:09:25,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1072 Valid, 17178 Invalid, 787 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 02:09:25,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2647 states. [2022-01-10 02:09:25,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2647 to 2505. [2022-01-10 02:09:25,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 2469 states have (on average 1.8266504657756177) internal successors, (4510), 2472 states have internal predecessors, (4510), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-01-10 02:09:25,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 4564 transitions. [2022-01-10 02:09:25,385 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 4564 transitions. Word has length 179 [2022-01-10 02:09:25,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:09:25,386 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 4564 transitions. [2022-01-10 02:09:25,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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 02:09:25,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 4564 transitions. [2022-01-10 02:09:25,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:09:25,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:09:25,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:25,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 02:09:25,389 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:09:25,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:09:25,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1148182328, now seen corresponding path program 1 times [2022-01-10 02:09:25,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:09:25,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659318505] [2022-01-10 02:09:25,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:09:25,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:09:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:25,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:09:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:25,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:09:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:25,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:09:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:25,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:09:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:25,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:09:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:25,555 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 02:09:25,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:09:25,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659318505] [2022-01-10 02:09:25,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659318505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:09:25,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:09:25,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 02:09:25,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855034392] [2022-01-10 02:09:25,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:09:25,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 02:09:25,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:09:25,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 02:09:25,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 02:09:25,558 INFO L87 Difference]: Start difference. First operand 2505 states and 4564 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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 02:09:26,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:09:26,889 INFO L93 Difference]: Finished difference Result 3016 states and 5390 transitions. [2022-01-10 02:09:26,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 02:09:26,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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 179 [2022-01-10 02:09:26,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:09:26,935 INFO L225 Difference]: With dead ends: 3016 [2022-01-10 02:09:26,935 INFO L226 Difference]: Without dead ends: 2647 [2022-01-10 02:09:26,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 02:09:26,944 INFO L933 BasicCegarLoop]: 4625 mSDtfsCounter, 1034 mSDsluCounter, 12280 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 16905 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 02:09:26,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1058 Valid, 16905 Invalid, 786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 02:09:26,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2647 states. [2022-01-10 02:09:27,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2647 to 2505. [2022-01-10 02:09:27,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 2469 states have (on average 1.8262454434993924) internal successors, (4509), 2472 states have internal predecessors, (4509), 28 states have call successors, (28), 7 states have call predecessors, (28), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-01-10 02:09:27,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 4563 transitions. [2022-01-10 02:09:27,118 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 4563 transitions. Word has length 179 [2022-01-10 02:09:27,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:09:27,118 INFO L470 AbstractCegarLoop]: Abstraction has 2505 states and 4563 transitions. [2022-01-10 02:09:27,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 3 states have internal predecessors, (168), 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 02:09:27,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 4563 transitions. [2022-01-10 02:09:27,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:09:27,121 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:09:27,121 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:27,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 02:09:27,121 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:09:27,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:09:27,122 INFO L85 PathProgramCache]: Analyzing trace with hash 577910522, now seen corresponding path program 1 times [2022-01-10 02:09:27,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:09:27,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940680890] [2022-01-10 02:09:27,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:09:27,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:09:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:27,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:09:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:27,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:09:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:27,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:09:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:27,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:09:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:27,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:09:27,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:27,417 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 02:09:27,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:09:27,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940680890] [2022-01-10 02:09:27,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940680890] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:09:27,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:09:27,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 02:09:27,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906478145] [2022-01-10 02:09:27,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:09:27,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 02:09:27,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:09:27,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 02:09:27,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 02:09:27,422 INFO L87 Difference]: Start difference. First operand 2505 states and 4563 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 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 02:09:30,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:09:30,509 INFO L93 Difference]: Finished difference Result 3535 states and 6234 transitions. [2022-01-10 02:09:30,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 02:09:30,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 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 179 [2022-01-10 02:09:30,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:09:30,522 INFO L225 Difference]: With dead ends: 3535 [2022-01-10 02:09:30,522 INFO L226 Difference]: Without dead ends: 3171 [2022-01-10 02:09:30,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-01-10 02:09:30,549 INFO L933 BasicCegarLoop]: 4677 mSDtfsCounter, 5525 mSDsluCounter, 12854 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5544 SdHoareTripleChecker+Valid, 17531 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-10 02:09:30,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5544 Valid, 17531 Invalid, 2142 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [124 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-10 02:09:30,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2022-01-10 02:09:30,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 2886. [2022-01-10 02:09:30,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2886 states, 2822 states have (on average 1.7983699503897945) internal successors, (5075), 2826 states have internal predecessors, (5075), 49 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2022-01-10 02:09:30,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 5174 transitions. [2022-01-10 02:09:30,723 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 5174 transitions. Word has length 179 [2022-01-10 02:09:30,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:09:30,723 INFO L470 AbstractCegarLoop]: Abstraction has 2886 states and 5174 transitions. [2022-01-10 02:09:30,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 4 states have internal predecessors, (168), 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 02:09:30,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 5174 transitions. [2022-01-10 02:09:30,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:09:30,725 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:09:30,726 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:30,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 02:09:30,726 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:09:30,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:09:30,727 INFO L85 PathProgramCache]: Analyzing trace with hash -807829258, now seen corresponding path program 1 times [2022-01-10 02:09:30,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:09:30,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130181797] [2022-01-10 02:09:30,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:09:30,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:09:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:30,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:09:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:30,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:09:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:30,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:09:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:30,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:09:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:30,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:09:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:30,923 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 02:09:30,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:09:30,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130181797] [2022-01-10 02:09:30,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130181797] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:09:30,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:09:30,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:09:30,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287009427] [2022-01-10 02:09:30,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:09:30,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:09:30,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:09:30,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:09:30,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:09:30,926 INFO L87 Difference]: Start difference. First operand 2886 states and 5174 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 02:09:34,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:09:34,265 INFO L93 Difference]: Finished difference Result 4458 states and 7728 transitions. [2022-01-10 02:09:34,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:09:34,266 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2022-01-10 02:09:34,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:09:34,279 INFO L225 Difference]: With dead ends: 4458 [2022-01-10 02:09:34,280 INFO L226 Difference]: Without dead ends: 3713 [2022-01-10 02:09:34,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:09:34,291 INFO L933 BasicCegarLoop]: 4988 mSDtfsCounter, 5553 mSDsluCounter, 17784 mSDsCounter, 0 mSdLazyCounter, 3139 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5572 SdHoareTripleChecker+Valid, 22772 SdHoareTripleChecker+Invalid, 3219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 3139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-10 02:09:34,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5572 Valid, 22772 Invalid, 3219 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [80 Valid, 3139 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-10 02:09:34,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3713 states. [2022-01-10 02:09:34,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3713 to 3240. [2022-01-10 02:09:34,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3240 states, 3148 states have (on average 1.7747776365946633) internal successors, (5587), 3153 states have internal predecessors, (5587), 70 states have call successors, (70), 19 states have call predecessors, (70), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2022-01-10 02:09:34,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3240 states to 3240 states and 5730 transitions. [2022-01-10 02:09:34,425 INFO L78 Accepts]: Start accepts. Automaton has 3240 states and 5730 transitions. Word has length 179 [2022-01-10 02:09:34,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:09:34,426 INFO L470 AbstractCegarLoop]: Abstraction has 3240 states and 5730 transitions. [2022-01-10 02:09:34,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 02:09:34,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3240 states and 5730 transitions. [2022-01-10 02:09:34,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:09:34,428 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:09:34,428 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:34,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 02:09:34,428 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:09:34,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:09:34,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1717666424, now seen corresponding path program 1 times [2022-01-10 02:09:34,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:09:34,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458389785] [2022-01-10 02:09:34,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:09:34,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:09:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:34,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:09:34,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:34,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:09:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:34,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:09:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:34,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:09:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:34,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:09:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:34,577 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 02:09:34,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:09:34,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458389785] [2022-01-10 02:09:34,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458389785] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:09:34,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:09:34,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:09:34,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949438264] [2022-01-10 02:09:34,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:09:34,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:09:34,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:09:34,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:09:34,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:09:34,579 INFO L87 Difference]: Start difference. First operand 3240 states and 5730 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 02:09:37,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:09:37,845 INFO L93 Difference]: Finished difference Result 5819 states and 9912 transitions. [2022-01-10 02:09:37,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:09:37,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2022-01-10 02:09:37,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:09:37,860 INFO L225 Difference]: With dead ends: 5819 [2022-01-10 02:09:37,861 INFO L226 Difference]: Without dead ends: 4720 [2022-01-10 02:09:37,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:09:37,864 INFO L933 BasicCegarLoop]: 4721 mSDtfsCounter, 5664 mSDsluCounter, 17110 mSDsCounter, 0 mSdLazyCounter, 2785 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5683 SdHoareTripleChecker+Valid, 21831 SdHoareTripleChecker+Invalid, 2908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-10 02:09:37,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5683 Valid, 21831 Invalid, 2908 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [123 Valid, 2785 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-10 02:09:37,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4720 states. [2022-01-10 02:09:37,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4720 to 3949. [2022-01-10 02:09:37,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3949 states, 3801 states have (on average 1.739542225730071) internal successors, (6612), 3808 states have internal predecessors, (6612), 112 states have call successors, (112), 31 states have call predecessors, (112), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2022-01-10 02:09:37,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3949 states to 3949 states and 6847 transitions. [2022-01-10 02:09:37,983 INFO L78 Accepts]: Start accepts. Automaton has 3949 states and 6847 transitions. Word has length 179 [2022-01-10 02:09:37,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:09:37,983 INFO L470 AbstractCegarLoop]: Abstraction has 3949 states and 6847 transitions. [2022-01-10 02:09:37,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 02:09:37,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3949 states and 6847 transitions. [2022-01-10 02:09:37,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:09:37,986 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:09:37,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:37,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 02:09:37,987 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:09:37,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:09:37,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1106397366, now seen corresponding path program 1 times [2022-01-10 02:09:37,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:09:37,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271258336] [2022-01-10 02:09:37,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:09:37,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:09:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:38,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:09:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:38,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:09:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:38,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:09:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:38,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:09:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:38,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:09:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:38,139 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 02:09:38,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:09:38,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271258336] [2022-01-10 02:09:38,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271258336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:09:38,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:09:38,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:09:38,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529439619] [2022-01-10 02:09:38,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:09:38,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:09:38,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:09:38,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:09:38,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:09:38,140 INFO L87 Difference]: Start difference. First operand 3949 states and 6847 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 02:09:41,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:09:41,391 INFO L93 Difference]: Finished difference Result 8436 states and 14085 transitions. [2022-01-10 02:09:41,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:09:41,391 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2022-01-10 02:09:41,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:09:41,412 INFO L225 Difference]: With dead ends: 8436 [2022-01-10 02:09:41,413 INFO L226 Difference]: Without dead ends: 6628 [2022-01-10 02:09:41,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:09:41,417 INFO L933 BasicCegarLoop]: 4976 mSDtfsCounter, 5548 mSDsluCounter, 17784 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5567 SdHoareTripleChecker+Valid, 22760 SdHoareTripleChecker+Invalid, 3223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-10 02:09:41,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5567 Valid, 22760 Invalid, 3223 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [85 Valid, 3138 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-01-10 02:09:41,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6628 states. [2022-01-10 02:09:41,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6628 to 5368. [2022-01-10 02:09:41,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5368 states, 5108 states have (on average 1.6957713390759592) internal successors, (8662), 5119 states have internal predecessors, (8662), 196 states have call successors, (196), 55 states have call predecessors, (196), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2022-01-10 02:09:41,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5368 states to 5368 states and 9087 transitions. [2022-01-10 02:09:41,614 INFO L78 Accepts]: Start accepts. Automaton has 5368 states and 9087 transitions. Word has length 179 [2022-01-10 02:09:41,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:09:41,615 INFO L470 AbstractCegarLoop]: Abstraction has 5368 states and 9087 transitions. [2022-01-10 02:09:41,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 02:09:41,615 INFO L276 IsEmpty]: Start isEmpty. Operand 5368 states and 9087 transitions. [2022-01-10 02:09:41,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:09:41,618 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:09:41,618 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:41,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 02:09:41,618 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:09:41,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:09:41,618 INFO L85 PathProgramCache]: Analyzing trace with hash -298794312, now seen corresponding path program 1 times [2022-01-10 02:09:41,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:09:41,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071535102] [2022-01-10 02:09:41,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:09:41,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:09:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:41,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:09:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:41,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:09:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:41,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:09:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:41,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:09:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:41,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:09:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:41,771 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 02:09:41,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:09:41,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071535102] [2022-01-10 02:09:41,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071535102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:09:41,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:09:41,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:09:41,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547735711] [2022-01-10 02:09:41,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:09:41,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:09:41,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:09:41,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:09:41,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:09:41,773 INFO L87 Difference]: Start difference. First operand 5368 states and 9087 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 02:09:45,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:09:45,175 INFO L93 Difference]: Finished difference Result 13662 states and 22435 transitions. [2022-01-10 02:09:45,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:09:45,176 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2022-01-10 02:09:45,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:09:45,208 INFO L225 Difference]: With dead ends: 13662 [2022-01-10 02:09:45,208 INFO L226 Difference]: Without dead ends: 10435 [2022-01-10 02:09:45,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:09:45,222 INFO L933 BasicCegarLoop]: 4968 mSDtfsCounter, 5543 mSDsluCounter, 17784 mSDsCounter, 0 mSdLazyCounter, 3118 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5562 SdHoareTripleChecker+Valid, 22752 SdHoareTripleChecker+Invalid, 3204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-10 02:09:45,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5562 Valid, 22752 Invalid, 3204 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 3118 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-01-10 02:09:45,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10435 states. [2022-01-10 02:09:45,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10435 to 8220. [2022-01-10 02:09:45,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8220 states, 7736 states have (on average 1.6527921406411583) internal successors, (12786), 7755 states have internal predecessors, (12786), 364 states have call successors, (364), 103 states have call predecessors, (364), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2022-01-10 02:09:45,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8220 states to 8220 states and 13609 transitions. [2022-01-10 02:09:45,696 INFO L78 Accepts]: Start accepts. Automaton has 8220 states and 13609 transitions. Word has length 179 [2022-01-10 02:09:45,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:09:45,698 INFO L470 AbstractCegarLoop]: Abstraction has 8220 states and 13609 transitions. [2022-01-10 02:09:45,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 02:09:45,699 INFO L276 IsEmpty]: Start isEmpty. Operand 8220 states and 13609 transitions. [2022-01-10 02:09:45,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:09:45,703 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:09:45,703 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:45,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 02:09:45,703 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:09:45,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:09:45,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1147786554, now seen corresponding path program 1 times [2022-01-10 02:09:45,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:09:45,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180289644] [2022-01-10 02:09:45,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:09:45,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:09:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:45,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:09:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:45,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:09:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:45,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:09:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:45,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:09:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:45,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:09:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:45,833 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 02:09:45,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:09:45,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180289644] [2022-01-10 02:09:45,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180289644] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:09:45,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:09:45,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:09:45,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818138792] [2022-01-10 02:09:45,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:09:45,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:09:45,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:09:45,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:09:45,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:09:45,834 INFO L87 Difference]: Start difference. First operand 8220 states and 13609 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 02:09:49,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:09:49,818 INFO L93 Difference]: Finished difference Result 24132 states and 39227 transitions. [2022-01-10 02:09:49,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:09:49,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2022-01-10 02:09:49,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:09:49,861 INFO L225 Difference]: With dead ends: 24132 [2022-01-10 02:09:49,861 INFO L226 Difference]: Without dead ends: 18053 [2022-01-10 02:09:49,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:09:49,879 INFO L933 BasicCegarLoop]: 4963 mSDtfsCounter, 5542 mSDsluCounter, 17784 mSDsCounter, 0 mSdLazyCounter, 3110 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5561 SdHoareTripleChecker+Valid, 22747 SdHoareTripleChecker+Invalid, 3196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-10 02:09:49,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5561 Valid, 22747 Invalid, 3196 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 3110 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-01-10 02:09:49,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18053 states. [2022-01-10 02:09:50,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18053 to 13937. [2022-01-10 02:09:50,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13937 states, 13005 states have (on average 1.6187620146097654) internal successors, (21052), 13040 states have internal predecessors, (21052), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-01-10 02:09:50,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13937 states to 13937 states and 22725 transitions. [2022-01-10 02:09:50,522 INFO L78 Accepts]: Start accepts. Automaton has 13937 states and 22725 transitions. Word has length 179 [2022-01-10 02:09:50,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:09:50,523 INFO L470 AbstractCegarLoop]: Abstraction has 13937 states and 22725 transitions. [2022-01-10 02:09:50,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 02:09:50,523 INFO L276 IsEmpty]: Start isEmpty. Operand 13937 states and 22725 transitions. [2022-01-10 02:09:50,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:09:50,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:09:50,529 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:50,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 02:09:50,529 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:09:50,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:09:50,530 INFO L85 PathProgramCache]: Analyzing trace with hash 224619128, now seen corresponding path program 1 times [2022-01-10 02:09:50,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:09:50,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378491422] [2022-01-10 02:09:50,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:09:50,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:09:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:50,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:09:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:50,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:09:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:50,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:09:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:50,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:09:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:50,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:09:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:50,641 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 02:09:50,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:09:50,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378491422] [2022-01-10 02:09:50,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378491422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:09:50,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:09:50,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:09:50,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550121803] [2022-01-10 02:09:50,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:09:50,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:09:50,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:09:50,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:09:50,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:09:50,643 INFO L87 Difference]: Start difference. First operand 13937 states and 22725 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 02:09:53,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:09:53,210 INFO L93 Difference]: Finished difference Result 30100 states and 49050 transitions. [2022-01-10 02:09:53,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 02:09:53,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2022-01-10 02:09:53,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:09:53,260 INFO L225 Difference]: With dead ends: 30100 [2022-01-10 02:09:53,260 INFO L226 Difference]: Without dead ends: 18304 [2022-01-10 02:09:53,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-10 02:09:53,290 INFO L933 BasicCegarLoop]: 4601 mSDtfsCounter, 5093 mSDsluCounter, 16796 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5113 SdHoareTripleChecker+Valid, 21397 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 02:09:53,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5113 Valid, 21397 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 02:09:53,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18304 states. [2022-01-10 02:09:54,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18304 to 13937. [2022-01-10 02:09:54,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13937 states, 13005 states have (on average 1.6162245290272972) internal successors, (21019), 13040 states have internal predecessors, (21019), 700 states have call successors, (700), 199 states have call predecessors, (700), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-01-10 02:09:54,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13937 states to 13937 states and 22692 transitions. [2022-01-10 02:09:54,056 INFO L78 Accepts]: Start accepts. Automaton has 13937 states and 22692 transitions. Word has length 179 [2022-01-10 02:09:54,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:09:54,057 INFO L470 AbstractCegarLoop]: Abstraction has 13937 states and 22692 transitions. [2022-01-10 02:09:54,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 02:09:54,057 INFO L276 IsEmpty]: Start isEmpty. Operand 13937 states and 22692 transitions. [2022-01-10 02:09:54,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:09:54,064 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:09:54,064 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:09:54,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 02:09:54,064 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:09:54,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:09:54,065 INFO L85 PathProgramCache]: Analyzing trace with hash 610481530, now seen corresponding path program 1 times [2022-01-10 02:09:54,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:09:54,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035950076] [2022-01-10 02:09:54,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:09:54,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:09:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:54,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:09:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:54,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:09:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:54,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:09:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:54,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:09:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:54,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:09:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:09:54,191 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 02:09:54,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:09:54,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035950076] [2022-01-10 02:09:54,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035950076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:09:54,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:09:54,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:09:54,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562279366] [2022-01-10 02:09:54,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:09:54,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:09:54,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:09:54,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:09:54,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:09:54,193 INFO L87 Difference]: Start difference. First operand 13937 states and 22692 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 02:09:59,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:09:59,243 INFO L93 Difference]: Finished difference Result 45037 states and 72769 transitions. [2022-01-10 02:09:59,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:09:59,244 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2022-01-10 02:09:59,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:09:59,319 INFO L225 Difference]: With dead ends: 45037 [2022-01-10 02:09:59,319 INFO L226 Difference]: Without dead ends: 33241 [2022-01-10 02:09:59,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:09:59,346 INFO L933 BasicCegarLoop]: 4952 mSDtfsCounter, 5534 mSDsluCounter, 17784 mSDsCounter, 0 mSdLazyCounter, 3083 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5553 SdHoareTripleChecker+Valid, 22736 SdHoareTripleChecker+Invalid, 3169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-10 02:09:59,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5553 Valid, 22736 Invalid, 3169 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 3083 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-10 02:09:59,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33241 states. [2022-01-10 02:10:00,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33241 to 25435. [2022-01-10 02:10:00,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25435 states, 23607 states have (on average 1.5927055534375396) internal successors, (37599), 23674 states have internal predecessors, (37599), 1372 states have call successors, (1372), 391 states have call predecessors, (1372), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2022-01-10 02:10:00,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25435 states to 25435 states and 41134 transitions. [2022-01-10 02:10:00,950 INFO L78 Accepts]: Start accepts. Automaton has 25435 states and 41134 transitions. Word has length 179 [2022-01-10 02:10:00,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:10:00,950 INFO L470 AbstractCegarLoop]: Abstraction has 25435 states and 41134 transitions. [2022-01-10 02:10:00,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 02:10:00,951 INFO L276 IsEmpty]: Start isEmpty. Operand 25435 states and 41134 transitions. [2022-01-10 02:10:00,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:10:00,962 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:10:00,962 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:10:00,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 02:10:00,963 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:10:00,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:10:00,963 INFO L85 PathProgramCache]: Analyzing trace with hash 345834040, now seen corresponding path program 1 times [2022-01-10 02:10:00,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:10:00,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383070033] [2022-01-10 02:10:00,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:10:00,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:10:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:10:00,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:10:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:10:01,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:10:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:10:01,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:10:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:10:01,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:10:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:10:01,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:10:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:10:01,080 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 02:10:01,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:10:01,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383070033] [2022-01-10 02:10:01,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383070033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:10:01,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:10:01,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:10:01,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146367441] [2022-01-10 02:10:01,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:10:01,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:10:01,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:10:01,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:10:01,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:10:01,082 INFO L87 Difference]: Start difference. First operand 25435 states and 41134 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 02:10:08,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:10:08,079 INFO L93 Difference]: Finished difference Result 86917 states and 140729 transitions. [2022-01-10 02:10:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:10:08,079 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 179 [2022-01-10 02:10:08,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:10:08,274 INFO L225 Difference]: With dead ends: 86917 [2022-01-10 02:10:08,274 INFO L226 Difference]: Without dead ends: 63623 [2022-01-10 02:10:08,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:10:08,335 INFO L933 BasicCegarLoop]: 4947 mSDtfsCounter, 5533 mSDsluCounter, 17784 mSDsCounter, 0 mSdLazyCounter, 3075 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5552 SdHoareTripleChecker+Valid, 22731 SdHoareTripleChecker+Invalid, 3161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-10 02:10:08,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5552 Valid, 22731 Invalid, 3161 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 3075 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-10 02:10:08,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63623 states. [2022-01-10 02:10:11,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63623 to 48492. [2022-01-10 02:10:11,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48492 states, 44872 states have (on average 1.5789133535389552) internal successors, (70849), 45003 states have internal predecessors, (70849), 2716 states have call successors, (2716), 775 states have call predecessors, (2716), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2022-01-10 02:10:11,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48492 states to 48492 states and 78594 transitions. [2022-01-10 02:10:11,841 INFO L78 Accepts]: Start accepts. Automaton has 48492 states and 78594 transitions. Word has length 179 [2022-01-10 02:10:11,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:10:11,841 INFO L470 AbstractCegarLoop]: Abstraction has 48492 states and 78594 transitions. [2022-01-10 02:10:11,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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 02:10:11,842 INFO L276 IsEmpty]: Start isEmpty. Operand 48492 states and 78594 transitions. [2022-01-10 02:10:11,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 02:10:11,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:10:11,956 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:10:11,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 02:10:11,956 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:10:11,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:10:11,956 INFO L85 PathProgramCache]: Analyzing trace with hash -2018007622, now seen corresponding path program 1 times [2022-01-10 02:10:11,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:10:11,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442208770] [2022-01-10 02:10:11,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:10:11,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:10:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:10:11,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:10:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:10:12,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 02:10:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:10:12,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 02:10:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:10:12,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-01-10 02:10:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:10:12,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-01-10 02:10:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:10:12,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:10:12,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:10:12,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442208770] [2022-01-10 02:10:12,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442208770] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:10:12,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:10:12,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:10:12,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576282668] [2022-01-10 02:10:12,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:10:12,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:10:12,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:10:12,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:10:12,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:10:12,106 INFO L87 Difference]: Start difference. First operand 48492 states and 78594 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 5 states have internal predecessors, (168), 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)