/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_label45+token_ring.06.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 02:02:21,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 02:02:21,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 02:02:21,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 02:02:21,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 02:02:21,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 02:02:21,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 02:02:21,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 02:02:21,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 02:02:21,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 02:02:21,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 02:02:21,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 02:02:21,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 02:02:21,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 02:02:21,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 02:02:21,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 02:02:21,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 02:02:21,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 02:02:21,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 02:02:21,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 02:02:21,479 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 02:02:21,502 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 02:02:21,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 02:02:21,502 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 02:02:21,502 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 02:02:21,503 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 02:02:21,503 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 02:02:21,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 02:02:21,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 02:02:21,504 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 02:02:21,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 02:02:21,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 02:02:21,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 02:02:21,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 02:02:21,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 02:02:21,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 02:02:21,505 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 02:02:21,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 02:02:21,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 02:02:21,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 02:02:21,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 02:02:21,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 02:02:21,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:02:21,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 02:02:21,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 02:02:21,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 02:02:21,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 02:02:21,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 02:02:21,506 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 02:02:21,506 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 02:02:21,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 02:02:21,506 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 02:02:21,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 02:02:21,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 02:02:21,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 02:02:21,731 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 02:02:21,731 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 02:02:21,732 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.06.cil-1.c [2022-01-10 02:02:21,785 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35d24c72e/a736eaa33e49493e9b59bd7066088458/FLAG5e2af60f8 [2022-01-10 02:02:22,461 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 02:02:22,462 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.06.cil-1.c [2022-01-10 02:02:22,512 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35d24c72e/a736eaa33e49493e9b59bd7066088458/FLAG5e2af60f8 [2022-01-10 02:02:23,016 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35d24c72e/a736eaa33e49493e9b59bd7066088458 [2022-01-10 02:02:23,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 02:02:23,019 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 02:02:23,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 02:02:23,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 02:02:23,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 02:02:23,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:02:23" (1/1) ... [2022-01-10 02:02:23,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56705917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:02:23, skipping insertion in model container [2022-01-10 02:02:23,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:02:23" (1/1) ... [2022-01-10 02:02:23,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 02:02:23,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 02:02:24,383 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_label45+token_ring.06.cil-1.c[380323,380336] [2022-01-10 02:02:24,403 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_label45+token_ring.06.cil-1.c[383339,383352] [2022-01-10 02:02:24,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:02:24,566 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 02:02:25,152 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_label45+token_ring.06.cil-1.c[380323,380336] [2022-01-10 02:02:25,158 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_label45+token_ring.06.cil-1.c[383339,383352] [2022-01-10 02:02:25,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:02:25,213 INFO L208 MainTranslator]: Completed translation [2022-01-10 02:02:25,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:02:25 WrapperNode [2022-01-10 02:02:25,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 02:02:25,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 02:02:25,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 02:02:25,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 02:02:25,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:02:25" (1/1) ... [2022-01-10 02:02:25,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:02:25" (1/1) ... [2022-01-10 02:02:25,533 INFO L137 Inliner]: procedures = 56, calls = 60, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 12856 [2022-01-10 02:02:25,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 02:02:25,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 02:02:25,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 02:02:25,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 02:02:25,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:02:25" (1/1) ... [2022-01-10 02:02:25,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:02:25" (1/1) ... [2022-01-10 02:02:25,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:02:25" (1/1) ... [2022-01-10 02:02:25,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:02:25" (1/1) ... [2022-01-10 02:02:25,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:02:25" (1/1) ... [2022-01-10 02:02:25,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:02:25" (1/1) ... [2022-01-10 02:02:25,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:02:25" (1/1) ... [2022-01-10 02:02:25,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 02:02:25,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 02:02:25,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 02:02:25,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 02:02:25,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:02:25" (1/1) ... [2022-01-10 02:02:25,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:02:25,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 02:02:25,900 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 02:02:25,913 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 02:02:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 02:02:25,943 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-01-10 02:02:25,943 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-01-10 02:02:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-01-10 02:02:25,944 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-01-10 02:02:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-01-10 02:02:25,944 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-01-10 02:02:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-01-10 02:02:25,944 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-01-10 02:02:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-01-10 02:02:25,944 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-01-10 02:02:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-01-10 02:02:25,944 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-01-10 02:02:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-01-10 02:02:25,944 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-01-10 02:02:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 02:02:25,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 02:02:25,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 02:02:26,115 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 02:02:26,116 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 02:02:31,111 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 02:02:31,136 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 02:02:31,136 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-01-10 02:02:31,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:02:31 BoogieIcfgContainer [2022-01-10 02:02:31,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 02:02:31,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 02:02:31,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 02:02:31,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 02:02:31,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:02:23" (1/3) ... [2022-01-10 02:02:31,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be33e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:02:31, skipping insertion in model container [2022-01-10 02:02:31,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:02:25" (2/3) ... [2022-01-10 02:02:31,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be33e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:02:31, skipping insertion in model container [2022-01-10 02:02:31,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:02:31" (3/3) ... [2022-01-10 02:02:31,148 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.06.cil-1.c [2022-01-10 02:02:31,152 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 02:02:31,152 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 02:02:31,190 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 02:02:31,195 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 02:02:31,195 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 02:02:31,246 INFO L276 IsEmpty]: Start isEmpty. Operand has 2423 states, 2391 states have (on average 1.8515265579255542) internal successors, (4427), 2396 states have internal predecessors, (4427), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2022-01-10 02:02:31,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:02:31,255 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:02:31,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:02:31,256 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:02:31,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:02:31,260 INFO L85 PathProgramCache]: Analyzing trace with hash 787057146, now seen corresponding path program 1 times [2022-01-10 02:02:31,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:02:31,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237884317] [2022-01-10 02:02:31,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:02:31,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:02:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:31,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:02:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:31,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:02:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:31,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:02:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:31,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:02:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:31,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:02:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:31,610 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 02:02:31,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:02:31,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237884317] [2022-01-10 02:02:31,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237884317] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:02:31,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:02:31,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 02:02:31,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297042253] [2022-01-10 02:02:31,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:02:31,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 02:02:31,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:02:31,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 02:02:31,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 02:02:31,647 INFO L87 Difference]: Start difference. First operand has 2423 states, 2391 states have (on average 1.8515265579255542) internal successors, (4427), 2396 states have internal predecessors, (4427), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:32,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:02:32,408 INFO L93 Difference]: Finished difference Result 4911 states and 9054 transitions. [2022-01-10 02:02:32,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 02:02:32,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:02:32,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:02:32,434 INFO L225 Difference]: With dead ends: 4911 [2022-01-10 02:02:32,434 INFO L226 Difference]: Without dead ends: 2431 [2022-01-10 02:02:32,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 02:02:32,448 INFO L933 BasicCegarLoop]: 4417 mSDtfsCounter, 596 mSDsluCounter, 12327 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 16744 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 02:02:32,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [614 Valid, 16744 Invalid, 458 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 02:02:32,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2022-01-10 02:02:32,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2355. [2022-01-10 02:02:32,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 2325 states have (on average 1.8391397849462365) internal successors, (4276), 2328 states have internal predecessors, (4276), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-01-10 02:02:32,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 4318 transitions. [2022-01-10 02:02:32,586 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 4318 transitions. Word has length 113 [2022-01-10 02:02:32,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:02:32,586 INFO L470 AbstractCegarLoop]: Abstraction has 2355 states and 4318 transitions. [2022-01-10 02:02:32,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:32,587 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 4318 transitions. [2022-01-10 02:02:32,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:02:32,593 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:02:32,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:02:32,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 02:02:32,594 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:02:32,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:02:32,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1110439620, now seen corresponding path program 1 times [2022-01-10 02:02:32,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:02:32,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45552163] [2022-01-10 02:02:32,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:02:32,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:02:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:32,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:02:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:32,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:02:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:32,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:02:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:32,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:02:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:32,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:02:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:32,775 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 02:02:32,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:02:32,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45552163] [2022-01-10 02:02:32,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45552163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:02:32,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:02:32,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:02:32,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628633402] [2022-01-10 02:02:32,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:02:32,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:02:32,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:02:32,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:02:32,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:02:32,778 INFO L87 Difference]: Start difference. First operand 2355 states and 4318 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:34,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:02:34,342 INFO L93 Difference]: Finished difference Result 2966 states and 5298 transitions. [2022-01-10 02:02:34,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:02:34,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:02:34,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:02:34,353 INFO L225 Difference]: With dead ends: 2966 [2022-01-10 02:02:34,353 INFO L226 Difference]: Without dead ends: 2746 [2022-01-10 02:02:34,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:02:34,356 INFO L933 BasicCegarLoop]: 4564 mSDtfsCounter, 4790 mSDsluCounter, 17021 mSDsCounter, 0 mSdLazyCounter, 1877 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4803 SdHoareTripleChecker+Valid, 21585 SdHoareTripleChecker+Invalid, 1950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 02:02:34,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4803 Valid, 21585 Invalid, 1950 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [73 Valid, 1877 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 02:02:34,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2022-01-10 02:02:34,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2583. [2022-01-10 02:02:34,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2583 states, 2528 states have (on average 1.8184335443037976) internal successors, (4597), 2533 states have internal predecessors, (4597), 39 states have call successors, (39), 13 states have call predecessors, (39), 14 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2022-01-10 02:02:34,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2583 states to 2583 states and 4680 transitions. [2022-01-10 02:02:34,417 INFO L78 Accepts]: Start accepts. Automaton has 2583 states and 4680 transitions. Word has length 113 [2022-01-10 02:02:34,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:02:34,418 INFO L470 AbstractCegarLoop]: Abstraction has 2583 states and 4680 transitions. [2022-01-10 02:02:34,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:34,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2583 states and 4680 transitions. [2022-01-10 02:02:34,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:02:34,420 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:02:34,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:02:34,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 02:02:34,420 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:02:34,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:02:34,421 INFO L85 PathProgramCache]: Analyzing trace with hash 240945598, now seen corresponding path program 1 times [2022-01-10 02:02:34,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:02:34,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523285071] [2022-01-10 02:02:34,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:02:34,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:02:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:34,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:02:34,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:34,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:02:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:34,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:02:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:34,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:02:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:34,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:02:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:34,568 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 02:02:34,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:02:34,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523285071] [2022-01-10 02:02:34,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523285071] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:02:34,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:02:34,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:02:34,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804150813] [2022-01-10 02:02:34,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:02:34,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:02:34,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:02:34,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:02:34,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:02:34,570 INFO L87 Difference]: Start difference. First operand 2583 states and 4680 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:36,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:02:36,197 INFO L93 Difference]: Finished difference Result 3740 states and 6520 transitions. [2022-01-10 02:02:36,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:02:36,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:02:36,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:02:36,210 INFO L225 Difference]: With dead ends: 3740 [2022-01-10 02:02:36,210 INFO L226 Difference]: Without dead ends: 3294 [2022-01-10 02:02:36,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:02:36,214 INFO L933 BasicCegarLoop]: 4511 mSDtfsCounter, 4814 mSDsluCounter, 16958 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4827 SdHoareTripleChecker+Valid, 21469 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 02:02:36,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4827 Valid, 21469 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 02:02:36,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2022-01-10 02:02:36,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3003. [2022-01-10 02:02:36,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3003 states, 2904 states have (on average 1.7837465564738293) internal successors, (5180), 2911 states have internal predecessors, (5180), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2022-01-10 02:02:36,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3003 states to 3003 states and 5333 transitions. [2022-01-10 02:02:36,286 INFO L78 Accepts]: Start accepts. Automaton has 3003 states and 5333 transitions. Word has length 113 [2022-01-10 02:02:36,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:02:36,286 INFO L470 AbstractCegarLoop]: Abstraction has 3003 states and 5333 transitions. [2022-01-10 02:02:36,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:36,287 INFO L276 IsEmpty]: Start isEmpty. Operand 3003 states and 5333 transitions. [2022-01-10 02:02:36,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:02:36,288 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:02:36,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:02:36,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 02:02:36,288 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:02:36,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:02:36,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1378029316, now seen corresponding path program 1 times [2022-01-10 02:02:36,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:02:36,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114833523] [2022-01-10 02:02:36,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:02:36,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:02:36,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:36,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:02:36,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:36,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:02:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:36,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:02:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:36,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:02:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:36,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:02:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:36,380 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 02:02:36,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:02:36,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114833523] [2022-01-10 02:02:36,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114833523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:02:36,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:02:36,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:02:36,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249216666] [2022-01-10 02:02:36,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:02:36,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:02:36,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:02:36,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:02:36,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:02:36,384 INFO L87 Difference]: Start difference. First operand 3003 states and 5333 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:38,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:02:38,176 INFO L93 Difference]: Finished difference Result 5254 states and 8905 transitions. [2022-01-10 02:02:38,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:02:38,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:02:38,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:02:38,194 INFO L225 Difference]: With dead ends: 5254 [2022-01-10 02:02:38,195 INFO L226 Difference]: Without dead ends: 4388 [2022-01-10 02:02:38,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:02:38,200 INFO L933 BasicCegarLoop]: 4555 mSDtfsCounter, 4789 mSDsluCounter, 17021 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 21576 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-10 02:02:38,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4802 Valid, 21576 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-10 02:02:38,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4388 states. [2022-01-10 02:02:38,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4388 to 3845. [2022-01-10 02:02:38,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3845 states, 3658 states have (on average 1.7353745215965009) internal successors, (6348), 3669 states have internal predecessors, (6348), 129 states have call successors, (129), 49 states have call predecessors, (129), 56 states have return successors, (170), 134 states have call predecessors, (170), 127 states have call successors, (170) [2022-01-10 02:02:38,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3845 states to 3845 states and 6647 transitions. [2022-01-10 02:02:38,312 INFO L78 Accepts]: Start accepts. Automaton has 3845 states and 6647 transitions. Word has length 113 [2022-01-10 02:02:38,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:02:38,312 INFO L470 AbstractCegarLoop]: Abstraction has 3845 states and 6647 transitions. [2022-01-10 02:02:38,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:38,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3845 states and 6647 transitions. [2022-01-10 02:02:38,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:02:38,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:02:38,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:02:38,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 02:02:38,315 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:02:38,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:02:38,315 INFO L85 PathProgramCache]: Analyzing trace with hash 2033428990, now seen corresponding path program 1 times [2022-01-10 02:02:38,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:02:38,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310997642] [2022-01-10 02:02:38,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:02:38,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:02:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:38,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:02:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:38,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:02:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:38,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:02:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:38,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:02:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:38,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:02:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:38,405 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 02:02:38,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:02:38,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310997642] [2022-01-10 02:02:38,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310997642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:02:38,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:02:38,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:02:38,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570586694] [2022-01-10 02:02:38,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:02:38,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:02:38,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:02:38,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:02:38,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:02:38,409 INFO L87 Difference]: Start difference. First operand 3845 states and 6647 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:40,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:02:40,160 INFO L93 Difference]: Finished difference Result 8280 states and 13689 transitions. [2022-01-10 02:02:40,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:02:40,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:02:40,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:02:40,187 INFO L225 Difference]: With dead ends: 8280 [2022-01-10 02:02:40,187 INFO L226 Difference]: Without dead ends: 6572 [2022-01-10 02:02:40,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:02:40,197 INFO L933 BasicCegarLoop]: 4552 mSDtfsCounter, 4789 mSDsluCounter, 17021 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 21573 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 02:02:40,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4802 Valid, 21573 Invalid, 1943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1867 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 02:02:40,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6572 states. [2022-01-10 02:02:40,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6572 to 5535. [2022-01-10 02:02:40,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5535 states, 5172 states have (on average 1.6805877803557618) internal successors, (8692), 5191 states have internal predecessors, (8692), 249 states have call successors, (249), 97 states have call predecessors, (249), 112 states have return successors, (360), 262 states have call predecessors, (360), 247 states have call successors, (360) [2022-01-10 02:02:40,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5535 states to 5535 states and 9301 transitions. [2022-01-10 02:02:40,382 INFO L78 Accepts]: Start accepts. Automaton has 5535 states and 9301 transitions. Word has length 113 [2022-01-10 02:02:40,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:02:40,383 INFO L470 AbstractCegarLoop]: Abstraction has 5535 states and 9301 transitions. [2022-01-10 02:02:40,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:40,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5535 states and 9301 transitions. [2022-01-10 02:02:40,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:02:40,386 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:02:40,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:02:40,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 02:02:40,387 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:02:40,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:02:40,387 INFO L85 PathProgramCache]: Analyzing trace with hash 2004928700, now seen corresponding path program 1 times [2022-01-10 02:02:40,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:02:40,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008876381] [2022-01-10 02:02:40,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:02:40,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:02:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:40,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:02:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:40,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:02:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:40,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:02:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:40,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:02:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:40,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:02:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:40,495 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 02:02:40,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:02:40,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008876381] [2022-01-10 02:02:40,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008876381] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:02:40,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:02:40,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:02:40,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134138893] [2022-01-10 02:02:40,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:02:40,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:02:40,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:02:40,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:02:40,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:02:40,497 INFO L87 Difference]: Start difference. First operand 5535 states and 9301 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:42,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:02:42,290 INFO L93 Difference]: Finished difference Result 14330 states and 23313 transitions. [2022-01-10 02:02:42,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:02:42,290 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:02:42,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:02:42,334 INFO L225 Difference]: With dead ends: 14330 [2022-01-10 02:02:42,334 INFO L226 Difference]: Without dead ends: 10932 [2022-01-10 02:02:42,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:02:42,345 INFO L933 BasicCegarLoop]: 4549 mSDtfsCounter, 4789 mSDsluCounter, 17021 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 21570 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 02:02:42,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4802 Valid, 21570 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1861 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 02:02:42,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10932 states. [2022-01-10 02:02:42,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10932 to 8929. [2022-01-10 02:02:42,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8929 states, 8214 states have (on average 1.6313610908205503) internal successors, (13400), 8249 states have internal predecessors, (13400), 489 states have call successors, (489), 193 states have call predecessors, (489), 224 states have return successors, (794), 518 states have call predecessors, (794), 487 states have call successors, (794) [2022-01-10 02:02:42,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8929 states to 8929 states and 14683 transitions. [2022-01-10 02:02:42,634 INFO L78 Accepts]: Start accepts. Automaton has 8929 states and 14683 transitions. Word has length 113 [2022-01-10 02:02:42,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:02:42,634 INFO L470 AbstractCegarLoop]: Abstraction has 8929 states and 14683 transitions. [2022-01-10 02:02:42,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:42,635 INFO L276 IsEmpty]: Start isEmpty. Operand 8929 states and 14683 transitions. [2022-01-10 02:02:42,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:02:42,639 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:02:42,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:02:42,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 02:02:42,640 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:02:42,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:02:42,640 INFO L85 PathProgramCache]: Analyzing trace with hash 64346686, now seen corresponding path program 1 times [2022-01-10 02:02:42,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:02:42,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075074610] [2022-01-10 02:02:42,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:02:42,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:02:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:42,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:02:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:42,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:02:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:42,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:02:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:42,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:02:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:42,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:02:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:42,744 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 02:02:42,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:02:42,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075074610] [2022-01-10 02:02:42,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075074610] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:02:42,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:02:42,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:02:42,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798694781] [2022-01-10 02:02:42,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:02:42,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:02:42,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:02:42,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:02:42,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:02:42,745 INFO L87 Difference]: Start difference. First operand 8929 states and 14683 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:44,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:02:44,870 INFO L93 Difference]: Finished difference Result 26428 states and 42749 transitions. [2022-01-10 02:02:44,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:02:44,871 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:02:44,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:02:44,937 INFO L225 Difference]: With dead ends: 26428 [2022-01-10 02:02:44,937 INFO L226 Difference]: Without dead ends: 19636 [2022-01-10 02:02:44,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:02:44,964 INFO L933 BasicCegarLoop]: 4546 mSDtfsCounter, 4789 mSDsluCounter, 17021 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4802 SdHoareTripleChecker+Valid, 21567 SdHoareTripleChecker+Invalid, 1931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 02:02:44,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4802 Valid, 21567 Invalid, 1931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1855 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 02:02:44,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19636 states. [2022-01-10 02:02:45,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19636 to 15747. [2022-01-10 02:02:45,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15747 states, 14328 states have (on average 1.5954773869346734) internal successors, (22860), 14395 states have internal predecessors, (22860), 969 states have call successors, (969), 385 states have call predecessors, (969), 448 states have return successors, (1824), 1030 states have call predecessors, (1824), 967 states have call successors, (1824) [2022-01-10 02:02:45,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15747 states to 15747 states and 25653 transitions. [2022-01-10 02:02:45,674 INFO L78 Accepts]: Start accepts. Automaton has 15747 states and 25653 transitions. Word has length 113 [2022-01-10 02:02:45,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:02:45,677 INFO L470 AbstractCegarLoop]: Abstraction has 15747 states and 25653 transitions. [2022-01-10 02:02:45,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:45,677 INFO L276 IsEmpty]: Start isEmpty. Operand 15747 states and 25653 transitions. [2022-01-10 02:02:45,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:02:45,692 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:02:45,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:02:45,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 02:02:45,693 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:02:45,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:02:45,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1941409916, now seen corresponding path program 1 times [2022-01-10 02:02:45,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:02:45,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133012482] [2022-01-10 02:02:45,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:02:45,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:02:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:45,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:02:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:45,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:02:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:45,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:02:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:45,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:02:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:45,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:02:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:45,768 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 02:02:45,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:02:45,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133012482] [2022-01-10 02:02:45,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133012482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:02:45,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:02:45,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:02:45,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135695723] [2022-01-10 02:02:45,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:02:45,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:02:45,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:02:45,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:02:45,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:02:45,769 INFO L87 Difference]: Start difference. First operand 15747 states and 25653 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:48,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:02:48,820 INFO L93 Difference]: Finished difference Result 56574 states and 91179 transitions. [2022-01-10 02:02:48,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 02:02:48,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:02:48,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:02:48,974 INFO L225 Difference]: With dead ends: 56574 [2022-01-10 02:02:48,974 INFO L226 Difference]: Without dead ends: 42964 [2022-01-10 02:02:49,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-01-10 02:02:49,023 INFO L933 BasicCegarLoop]: 4539 mSDtfsCounter, 5044 mSDsluCounter, 17013 mSDsCounter, 0 mSdLazyCounter, 1839 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5064 SdHoareTripleChecker+Valid, 21552 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 02:02:49,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5064 Valid, 21552 Invalid, 1923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1839 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 02:02:49,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42964 states. [2022-01-10 02:02:50,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42964 to 29253. [2022-01-10 02:02:50,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29253 states, 26490 states have (on average 1.575839939599849) internal successors, (41744), 26621 states have internal predecessors, (41744), 1865 states have call successors, (1865), 769 states have call predecessors, (1865), 896 states have return successors, (4306), 1990 states have call predecessors, (4306), 1863 states have call successors, (4306) [2022-01-10 02:02:50,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29253 states to 29253 states and 47915 transitions. [2022-01-10 02:02:50,487 INFO L78 Accepts]: Start accepts. Automaton has 29253 states and 47915 transitions. Word has length 113 [2022-01-10 02:02:50,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:02:50,487 INFO L470 AbstractCegarLoop]: Abstraction has 29253 states and 47915 transitions. [2022-01-10 02:02:50,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:50,488 INFO L276 IsEmpty]: Start isEmpty. Operand 29253 states and 47915 transitions. [2022-01-10 02:02:50,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:02:50,505 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:02:50,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:02:50,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 02:02:50,506 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:02:50,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:02:50,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1170676350, now seen corresponding path program 1 times [2022-01-10 02:02:50,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:02:50,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147482991] [2022-01-10 02:02:50,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:02:50,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:02:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:50,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:02:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:50,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:02:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:50,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:02:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:50,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:02:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:50,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:02:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:50,578 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 02:02:50,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:02:50,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147482991] [2022-01-10 02:02:50,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147482991] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:02:50,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:02:50,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:02:50,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650827715] [2022-01-10 02:02:50,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:02:50,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:02:50,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:02:50,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:02:50,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:02:50,580 INFO L87 Difference]: Start difference. First operand 29253 states and 47915 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:55,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:02:55,625 INFO L93 Difference]: Finished difference Result 107011 states and 175039 transitions. [2022-01-10 02:02:55,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 02:02:55,630 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:02:55,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:02:56,096 INFO L225 Difference]: With dead ends: 107011 [2022-01-10 02:02:56,097 INFO L226 Difference]: Without dead ends: 79895 [2022-01-10 02:02:56,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-01-10 02:02:56,157 INFO L933 BasicCegarLoop]: 4531 mSDtfsCounter, 4978 mSDsluCounter, 17013 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4998 SdHoareTripleChecker+Valid, 21544 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 02:02:56,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4998 Valid, 21544 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 02:02:56,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79895 states. [2022-01-10 02:02:58,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79895 to 56327. [2022-01-10 02:02:58,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56327 states, 50940 states have (on average 1.5670985473105614) internal successors, (79828), 51199 states have internal predecessors, (79828), 3593 states have call successors, (3593), 1537 states have call predecessors, (3593), 1792 states have return successors, (10664), 3846 states have call predecessors, (10664), 3591 states have call successors, (10664) [2022-01-10 02:02:58,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56327 states to 56327 states and 94085 transitions. [2022-01-10 02:02:58,940 INFO L78 Accepts]: Start accepts. Automaton has 56327 states and 94085 transitions. Word has length 113 [2022-01-10 02:02:58,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:02:58,940 INFO L470 AbstractCegarLoop]: Abstraction has 56327 states and 94085 transitions. [2022-01-10 02:02:58,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:02:58,941 INFO L276 IsEmpty]: Start isEmpty. Operand 56327 states and 94085 transitions. [2022-01-10 02:02:58,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:02:58,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:02:58,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:02:58,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 02:02:58,970 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:02:58,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:02:58,973 INFO L85 PathProgramCache]: Analyzing trace with hash 584400128, now seen corresponding path program 1 times [2022-01-10 02:02:58,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:02:58,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161403075] [2022-01-10 02:02:58,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:02:58,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:02:58,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:58,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:02:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:59,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:02:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:59,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:02:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:59,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:02:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:59,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:02:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:02:59,053 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 02:02:59,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:02:59,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161403075] [2022-01-10 02:02:59,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161403075] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:02:59,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:02:59,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:02:59,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555465071] [2022-01-10 02:02:59,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:02:59,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:02:59,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:02:59,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:02:59,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:02:59,054 INFO L87 Difference]: Start difference. First operand 56327 states and 94085 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:03:07,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:03:07,994 INFO L93 Difference]: Finished difference Result 207177 states and 347363 transitions. [2022-01-10 02:03:07,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 02:03:07,995 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2022-01-10 02:03:07,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:03:08,652 INFO L225 Difference]: With dead ends: 207177 [2022-01-10 02:03:08,652 INFO L226 Difference]: Without dead ends: 152987 [2022-01-10 02:03:08,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-01-10 02:03:08,823 INFO L933 BasicCegarLoop]: 4496 mSDtfsCounter, 4951 mSDsluCounter, 16953 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4971 SdHoareTripleChecker+Valid, 21449 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 02:03:08,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4971 Valid, 21449 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 02:03:08,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152987 states. [2022-01-10 02:03:15,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152987 to 110347. [2022-01-10 02:03:15,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110347 states, 99840 states have (on average 1.563741987179487) internal successors, (156124), 100355 states have internal predecessors, (156124), 6921 states have call successors, (6921), 3073 states have call predecessors, (6921), 3584 states have return successors, (27626), 7430 states have call predecessors, (27626), 6919 states have call successors, (27626) [2022-01-10 02:03:15,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110347 states to 110347 states and 190671 transitions. [2022-01-10 02:03:15,964 INFO L78 Accepts]: Start accepts. Automaton has 110347 states and 190671 transitions. Word has length 113 [2022-01-10 02:03:15,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:03:15,965 INFO L470 AbstractCegarLoop]: Abstraction has 110347 states and 190671 transitions. [2022-01-10 02:03:15,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:03:15,965 INFO L276 IsEmpty]: Start isEmpty. Operand 110347 states and 190671 transitions. [2022-01-10 02:03:16,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 02:03:16,032 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:03:16,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:03:16,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 02:03:16,033 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:03:16,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:03:16,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1374174658, now seen corresponding path program 1 times [2022-01-10 02:03:16,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:03:16,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430663819] [2022-01-10 02:03:16,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:03:16,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:03:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:16,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:03:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:16,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 02:03:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:16,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 02:03:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:16,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 02:03:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:16,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 02:03:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:03:16,106 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 02:03:16,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:03:16,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430663819] [2022-01-10 02:03:16,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430663819] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:03:16,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:03:16,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:03:16,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449723787] [2022-01-10 02:03:16,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:03:16,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:03:16,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:03:16,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:03:16,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:03:16,108 INFO L87 Difference]: Start difference. First operand 110347 states and 190671 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)