./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label22.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8dc938df63d6ef0699d97f9ae7cada6df69df54c42593a6dc4a3dfe8ea43acc2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-10 22:41:58,276 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-10 22:41:58,363 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-10 22:41:58,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-10 22:41:58,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-10 22:41:58,400 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-10 22:41:58,401 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-10 22:41:58,401 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-10 22:41:58,402 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-10 22:41:58,405 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-10 22:41:58,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-10 22:41:58,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-10 22:41:58,407 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-10 22:41:58,407 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-10 22:41:58,408 INFO L153 SettingsManager]: * Use SBE=true [2024-10-10 22:41:58,408 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-10 22:41:58,408 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-10 22:41:58,408 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-10 22:41:58,409 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-10 22:41:58,409 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-10 22:41:58,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-10 22:41:58,412 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-10 22:41:58,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-10 22:41:58,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-10 22:41:58,413 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-10 22:41:58,414 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-10 22:41:58,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-10 22:41:58,414 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-10 22:41:58,414 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-10 22:41:58,415 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-10 22:41:58,415 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-10 22:41:58,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-10 22:41:58,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-10 22:41:58,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-10 22:41:58,416 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-10 22:41:58,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-10 22:41:58,418 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-10 22:41:58,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-10 22:41:58,418 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-10 22:41:58,418 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-10 22:41:58,419 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-10 22:41:58,420 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-10 22:41:58,420 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dc938df63d6ef0699d97f9ae7cada6df69df54c42593a6dc4a3dfe8ea43acc2 [2024-10-10 22:41:58,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-10 22:41:58,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-10 22:41:58,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-10 22:41:58,715 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-10 22:41:58,716 INFO L274 PluginConnector]: CDTParser initialized [2024-10-10 22:41:58,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label22.c [2024-10-10 22:42:00,160 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-10 22:42:00,627 INFO L384 CDTParser]: Found 1 translation units. [2024-10-10 22:42:00,629 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label22.c [2024-10-10 22:42:00,670 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/91d3b7bec/9cc035e4369e4172b8363d8d8f7f57a4/FLAGa0b5fc259 [2024-10-10 22:42:00,688 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/91d3b7bec/9cc035e4369e4172b8363d8d8f7f57a4 [2024-10-10 22:42:00,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-10 22:42:00,699 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-10 22:42:00,703 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-10 22:42:00,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-10 22:42:00,712 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-10 22:42:00,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 10:42:00" (1/1) ... [2024-10-10 22:42:00,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7ee311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:42:00, skipping insertion in model container [2024-10-10 22:42:00,716 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 10:42:00" (1/1) ... [2024-10-10 22:42:00,848 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-10 22:42:01,895 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label22.c[184143,184156] [2024-10-10 22:42:01,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-10 22:42:01,926 INFO L200 MainTranslator]: Completed pre-run [2024-10-10 22:42:02,353 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem04_label22.c[184143,184156] [2024-10-10 22:42:02,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-10 22:42:02,383 INFO L204 MainTranslator]: Completed translation [2024-10-10 22:42:02,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:42:02 WrapperNode [2024-10-10 22:42:02,384 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-10 22:42:02,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-10 22:42:02,386 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-10 22:42:02,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-10 22:42:02,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:42:02" (1/1) ... [2024-10-10 22:42:02,441 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:42:02" (1/1) ... [2024-10-10 22:42:02,732 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5576 [2024-10-10 22:42:02,732 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-10 22:42:02,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-10 22:42:02,734 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-10 22:42:02,734 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-10 22:42:02,745 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:42:02" (1/1) ... [2024-10-10 22:42:02,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:42:02" (1/1) ... [2024-10-10 22:42:02,781 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:42:02" (1/1) ... [2024-10-10 22:42:02,874 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-10 22:42:02,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:42:02" (1/1) ... [2024-10-10 22:42:02,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:42:02" (1/1) ... [2024-10-10 22:42:02,941 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:42:02" (1/1) ... [2024-10-10 22:42:02,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:42:02" (1/1) ... [2024-10-10 22:42:02,991 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:42:02" (1/1) ... [2024-10-10 22:42:03,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:42:02" (1/1) ... [2024-10-10 22:42:03,033 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-10 22:42:03,034 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-10 22:42:03,035 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-10 22:42:03,035 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-10 22:42:03,036 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:42:02" (1/1) ... [2024-10-10 22:42:03,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-10 22:42:03,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 22:42:03,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-10 22:42:03,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-10 22:42:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-10 22:42:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-10 22:42:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-10 22:42:03,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-10 22:42:03,187 INFO L238 CfgBuilder]: Building ICFG [2024-10-10 22:42:03,189 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-10 22:42:07,465 INFO L? ?]: Removed 768 outVars from TransFormulas that were not future-live. [2024-10-10 22:42:07,465 INFO L287 CfgBuilder]: Performing block encoding [2024-10-10 22:42:07,562 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-10 22:42:07,562 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-10 22:42:07,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 10:42:07 BoogieIcfgContainer [2024-10-10 22:42:07,563 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-10 22:42:07,565 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-10 22:42:07,565 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-10 22:42:07,568 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-10 22:42:07,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 10:42:00" (1/3) ... [2024-10-10 22:42:07,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1007fe6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 10:42:07, skipping insertion in model container [2024-10-10 22:42:07,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:42:02" (2/3) ... [2024-10-10 22:42:07,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1007fe6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 10:42:07, skipping insertion in model container [2024-10-10 22:42:07,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 10:42:07" (3/3) ... [2024-10-10 22:42:07,572 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label22.c [2024-10-10 22:42:07,589 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-10 22:42:07,589 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-10 22:42:07,697 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-10 22:42:07,703 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34ecd7f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-10 22:42:07,704 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-10 22:42:07,713 INFO L276 IsEmpty]: Start isEmpty. Operand has 823 states, 821 states have (on average 1.992691839220463) internal successors, (1636), 822 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:07,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2024-10-10 22:42:07,757 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:42:07,760 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:42:07,761 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:42:07,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:42:07,767 INFO L85 PathProgramCache]: Analyzing trace with hash 358935378, now seen corresponding path program 1 times [2024-10-10 22:42:07,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:42:07,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909456437] [2024-10-10 22:42:07,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:42:07,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:42:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:42:09,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 22:42:09,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:42:09,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909456437] [2024-10-10 22:42:09,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909456437] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:42:09,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:42:09,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 22:42:09,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724109608] [2024-10-10 22:42:09,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:42:09,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-10 22:42:09,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:42:09,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-10 22:42:09,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-10 22:42:09,143 INFO L87 Difference]: Start difference. First operand has 823 states, 821 states have (on average 1.992691839220463) internal successors, (1636), 822 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 406.0) internal successors, (812), 2 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:09,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:42:09,236 INFO L93 Difference]: Finished difference Result 1645 states and 3271 transitions. [2024-10-10 22:42:09,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-10 22:42:09,243 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 406.0) internal successors, (812), 2 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 812 [2024-10-10 22:42:09,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:42:09,277 INFO L225 Difference]: With dead ends: 1645 [2024-10-10 22:42:09,277 INFO L226 Difference]: Without dead ends: 821 [2024-10-10 22:42:09,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-10 22:42:09,290 INFO L432 NwaCegarLoop]: 1571 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-10 22:42:09,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1571 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-10 22:42:09,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-10-10 22:42:09,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2024-10-10 22:42:09,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 820 states have (on average 1.9158536585365853) internal successors, (1571), 820 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:09,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1571 transitions. [2024-10-10 22:42:09,393 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1571 transitions. Word has length 812 [2024-10-10 22:42:09,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:42:09,396 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1571 transitions. [2024-10-10 22:42:09,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 406.0) internal successors, (812), 2 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:09,397 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1571 transitions. [2024-10-10 22:42:09,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2024-10-10 22:42:09,411 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:42:09,411 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:42:09,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-10 22:42:09,412 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:42:09,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:42:09,413 INFO L85 PathProgramCache]: Analyzing trace with hash -591753616, now seen corresponding path program 1 times [2024-10-10 22:42:09,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:42:09,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86810338] [2024-10-10 22:42:09,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:42:09,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:42:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:42:12,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 22:42:12,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:42:12,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86810338] [2024-10-10 22:42:12,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86810338] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:42:12,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:42:12,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 22:42:12,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483270084] [2024-10-10 22:42:12,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:42:12,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 22:42:12,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:42:12,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 22:42:12,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-10 22:42:12,654 INFO L87 Difference]: Start difference. First operand 821 states and 1571 transitions. Second operand has 4 states, 4 states have (on average 203.0) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:17,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:42:17,699 INFO L93 Difference]: Finished difference Result 3277 states and 6279 transitions. [2024-10-10 22:42:17,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 22:42:17,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 203.0) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 812 [2024-10-10 22:42:17,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:42:17,712 INFO L225 Difference]: With dead ends: 3277 [2024-10-10 22:42:17,712 INFO L226 Difference]: Without dead ends: 2457 [2024-10-10 22:42:17,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-10 22:42:17,715 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 1682 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 4337 mSolverCounterSat, 1175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 5512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1175 IncrementalHoareTripleChecker+Valid, 4337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-10-10 22:42:17,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1682 Valid, 225 Invalid, 5512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1175 Valid, 4337 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-10-10 22:42:17,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2457 states. [2024-10-10 22:42:17,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2457 to 2457. [2024-10-10 22:42:17,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2457 states, 2456 states have (on average 1.5378664495114007) internal successors, (3777), 2456 states have internal predecessors, (3777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:17,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2457 states to 2457 states and 3777 transitions. [2024-10-10 22:42:17,765 INFO L78 Accepts]: Start accepts. Automaton has 2457 states and 3777 transitions. Word has length 812 [2024-10-10 22:42:17,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:42:17,767 INFO L471 AbstractCegarLoop]: Abstraction has 2457 states and 3777 transitions. [2024-10-10 22:42:17,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 203.0) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:17,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2457 states and 3777 transitions. [2024-10-10 22:42:17,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 832 [2024-10-10 22:42:17,778 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:42:17,780 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:42:17,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-10 22:42:17,781 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:42:17,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:42:17,782 INFO L85 PathProgramCache]: Analyzing trace with hash -320102147, now seen corresponding path program 1 times [2024-10-10 22:42:17,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:42:17,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815054523] [2024-10-10 22:42:17,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:42:17,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:42:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:42:18,932 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 22:42:18,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:42:18,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815054523] [2024-10-10 22:42:18,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815054523] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:42:18,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:42:18,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 22:42:18,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604940619] [2024-10-10 22:42:18,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:42:18,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 22:42:18,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:42:18,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 22:42:18,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 22:42:18,940 INFO L87 Difference]: Start difference. First operand 2457 states and 3777 transitions. Second operand has 4 states, 4 states have (on average 207.75) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:23,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:42:23,478 INFO L93 Difference]: Finished difference Result 8185 states and 12704 transitions. [2024-10-10 22:42:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 22:42:23,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 207.75) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 831 [2024-10-10 22:42:23,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:42:23,503 INFO L225 Difference]: With dead ends: 8185 [2024-10-10 22:42:23,504 INFO L226 Difference]: Without dead ends: 5729 [2024-10-10 22:42:23,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 22:42:23,510 INFO L432 NwaCegarLoop]: 473 mSDtfsCounter, 1735 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 4874 mSolverCounterSat, 1378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1735 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 6252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1378 IncrementalHoareTripleChecker+Valid, 4874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-10-10 22:42:23,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1735 Valid, 492 Invalid, 6252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1378 Valid, 4874 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-10-10 22:42:23,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5729 states. [2024-10-10 22:42:23,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5729 to 5729. [2024-10-10 22:42:23,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5729 states, 5728 states have (on average 1.4223114525139664) internal successors, (8147), 5728 states have internal predecessors, (8147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:23,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5729 states to 5729 states and 8147 transitions. [2024-10-10 22:42:23,613 INFO L78 Accepts]: Start accepts. Automaton has 5729 states and 8147 transitions. Word has length 831 [2024-10-10 22:42:23,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:42:23,614 INFO L471 AbstractCegarLoop]: Abstraction has 5729 states and 8147 transitions. [2024-10-10 22:42:23,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 207.75) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:23,615 INFO L276 IsEmpty]: Start isEmpty. Operand 5729 states and 8147 transitions. [2024-10-10 22:42:23,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 891 [2024-10-10 22:42:23,630 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:42:23,630 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:42:23,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-10 22:42:23,631 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:42:23,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:42:23,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1197792124, now seen corresponding path program 1 times [2024-10-10 22:42:23,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:42:23,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056748444] [2024-10-10 22:42:23,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:42:23,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:42:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:42:24,415 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-10-10 22:42:24,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:42:24,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056748444] [2024-10-10 22:42:24,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056748444] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:42:24,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:42:24,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 22:42:24,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670032696] [2024-10-10 22:42:24,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:42:24,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:42:24,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:42:24,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:42:24,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:42:24,421 INFO L87 Difference]: Start difference. First operand 5729 states and 8147 transitions. Second operand has 3 states, 3 states have (on average 276.6666666666667) internal successors, (830), 2 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:27,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:42:27,162 INFO L93 Difference]: Finished difference Result 14729 states and 21954 transitions. [2024-10-10 22:42:27,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:42:27,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 276.6666666666667) internal successors, (830), 2 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 890 [2024-10-10 22:42:27,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:42:27,200 INFO L225 Difference]: With dead ends: 14729 [2024-10-10 22:42:27,200 INFO L226 Difference]: Without dead ends: 9819 [2024-10-10 22:42:27,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:42:27,213 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 987 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 1077 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 3165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1077 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-10 22:42:27,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 497 Invalid, 3165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1077 Valid, 2088 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-10 22:42:27,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9819 states. [2024-10-10 22:42:27,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9819 to 9819. [2024-10-10 22:42:27,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9819 states, 9818 states have (on average 1.3435526583825625) internal successors, (13191), 9818 states have internal predecessors, (13191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:27,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9819 states to 9819 states and 13191 transitions. [2024-10-10 22:42:27,415 INFO L78 Accepts]: Start accepts. Automaton has 9819 states and 13191 transitions. Word has length 890 [2024-10-10 22:42:27,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:42:27,416 INFO L471 AbstractCegarLoop]: Abstraction has 9819 states and 13191 transitions. [2024-10-10 22:42:27,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 276.6666666666667) internal successors, (830), 2 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:27,417 INFO L276 IsEmpty]: Start isEmpty. Operand 9819 states and 13191 transitions. [2024-10-10 22:42:27,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 893 [2024-10-10 22:42:27,439 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:42:27,440 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:42:27,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-10 22:42:27,441 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:42:27,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:42:27,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1041636432, now seen corresponding path program 1 times [2024-10-10 22:42:27,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:42:27,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245942100] [2024-10-10 22:42:27,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:42:27,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:42:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:42:28,142 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-10-10 22:42:28,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:42:28,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245942100] [2024-10-10 22:42:28,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245942100] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:42:28,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:42:28,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 22:42:28,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851675383] [2024-10-10 22:42:28,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:42:28,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:42:28,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:42:28,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:42:28,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:42:28,148 INFO L87 Difference]: Start difference. First operand 9819 states and 13191 transitions. Second operand has 3 states, 3 states have (on average 290.6666666666667) internal successors, (872), 2 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:30,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:42:30,635 INFO L93 Difference]: Finished difference Result 26999 states and 37086 transitions. [2024-10-10 22:42:30,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:42:30,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 290.6666666666667) internal successors, (872), 2 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 892 [2024-10-10 22:42:30,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:42:30,690 INFO L225 Difference]: With dead ends: 26999 [2024-10-10 22:42:30,690 INFO L226 Difference]: Without dead ends: 17999 [2024-10-10 22:42:30,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:42:30,710 INFO L432 NwaCegarLoop]: 497 mSDtfsCounter, 813 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3014 mSolverCounterSat, 353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 3367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 3014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-10 22:42:30,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 505 Invalid, 3367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 3014 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-10 22:42:30,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17999 states. [2024-10-10 22:42:30,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17999 to 17999. [2024-10-10 22:42:31,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17999 states, 17998 states have (on average 1.3347594177130793) internal successors, (24023), 17998 states have internal predecessors, (24023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:31,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17999 states to 17999 states and 24023 transitions. [2024-10-10 22:42:31,042 INFO L78 Accepts]: Start accepts. Automaton has 17999 states and 24023 transitions. Word has length 892 [2024-10-10 22:42:31,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:42:31,043 INFO L471 AbstractCegarLoop]: Abstraction has 17999 states and 24023 transitions. [2024-10-10 22:42:31,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 290.6666666666667) internal successors, (872), 2 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:31,050 INFO L276 IsEmpty]: Start isEmpty. Operand 17999 states and 24023 transitions. [2024-10-10 22:42:31,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 915 [2024-10-10 22:42:31,079 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:42:31,080 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:42:31,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-10 22:42:31,080 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:42:31,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:42:31,082 INFO L85 PathProgramCache]: Analyzing trace with hash -604125117, now seen corresponding path program 1 times [2024-10-10 22:42:31,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:42:31,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204801980] [2024-10-10 22:42:31,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:42:31,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:42:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:42:32,116 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-10-10 22:42:32,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:42:32,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204801980] [2024-10-10 22:42:32,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204801980] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:42:32,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:42:32,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 22:42:32,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208371048] [2024-10-10 22:42:32,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:42:32,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 22:42:32,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:42:32,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 22:42:32,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 22:42:32,121 INFO L87 Difference]: Start difference. First operand 17999 states and 24023 transitions. Second operand has 4 states, 4 states have (on average 209.75) internal successors, (839), 3 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:36,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:42:36,073 INFO L93 Difference]: Finished difference Result 44177 states and 58655 transitions. [2024-10-10 22:42:36,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 22:42:36,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 209.75) internal successors, (839), 3 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 914 [2024-10-10 22:42:36,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:42:36,139 INFO L225 Difference]: With dead ends: 44177 [2024-10-10 22:42:36,139 INFO L226 Difference]: Without dead ends: 26997 [2024-10-10 22:42:36,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-10 22:42:36,164 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 1661 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 5047 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 5600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 5047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-10 22:42:36,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 319 Invalid, 5600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 5047 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-10 22:42:36,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26997 states. [2024-10-10 22:42:36,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26997 to 26997. [2024-10-10 22:42:36,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26997 states, 26996 states have (on average 1.276744702918951) internal successors, (34467), 26996 states have internal predecessors, (34467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:36,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26997 states to 26997 states and 34467 transitions. [2024-10-10 22:42:36,600 INFO L78 Accepts]: Start accepts. Automaton has 26997 states and 34467 transitions. Word has length 914 [2024-10-10 22:42:36,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:42:36,601 INFO L471 AbstractCegarLoop]: Abstraction has 26997 states and 34467 transitions. [2024-10-10 22:42:36,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 209.75) internal successors, (839), 3 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:36,601 INFO L276 IsEmpty]: Start isEmpty. Operand 26997 states and 34467 transitions. [2024-10-10 22:42:36,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 917 [2024-10-10 22:42:36,639 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:42:36,640 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:42:36,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-10 22:42:36,641 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:42:36,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:42:36,641 INFO L85 PathProgramCache]: Analyzing trace with hash 255324165, now seen corresponding path program 1 times [2024-10-10 22:42:36,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:42:36,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430201123] [2024-10-10 22:42:36,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:42:36,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:42:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:42:37,543 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-10 22:42:37,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:42:37,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430201123] [2024-10-10 22:42:37,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430201123] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:42:37,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:42:37,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 22:42:37,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589275306] [2024-10-10 22:42:37,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:42:37,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:42:37,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:42:37,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:42:37,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:42:37,552 INFO L87 Difference]: Start difference. First operand 26997 states and 34467 transitions. Second operand has 3 states, 3 states have (on average 301.6666666666667) internal successors, (905), 3 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:40,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:42:40,035 INFO L93 Difference]: Finished difference Result 53175 states and 68103 transitions. [2024-10-10 22:42:40,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:42:40,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 301.6666666666667) internal successors, (905), 3 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 916 [2024-10-10 22:42:40,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:42:40,087 INFO L225 Difference]: With dead ends: 53175 [2024-10-10 22:42:40,087 INFO L226 Difference]: Without dead ends: 26997 [2024-10-10 22:42:40,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:42:40,120 INFO L432 NwaCegarLoop]: 1340 mSDtfsCounter, 909 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 912 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 3009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 912 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-10 22:42:40,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 1347 Invalid, 3009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [912 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-10 22:42:40,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26997 states. [2024-10-10 22:42:40,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26997 to 26997. [2024-10-10 22:42:40,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26997 states, 26996 states have (on average 1.2078456067565566) internal successors, (32607), 26996 states have internal predecessors, (32607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:40,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26997 states to 26997 states and 32607 transitions. [2024-10-10 22:42:40,477 INFO L78 Accepts]: Start accepts. Automaton has 26997 states and 32607 transitions. Word has length 916 [2024-10-10 22:42:40,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:42:40,477 INFO L471 AbstractCegarLoop]: Abstraction has 26997 states and 32607 transitions. [2024-10-10 22:42:40,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 301.6666666666667) internal successors, (905), 3 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:40,478 INFO L276 IsEmpty]: Start isEmpty. Operand 26997 states and 32607 transitions. [2024-10-10 22:42:40,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 920 [2024-10-10 22:42:40,514 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:42:40,516 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:42:40,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-10 22:42:40,516 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:42:40,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:42:40,517 INFO L85 PathProgramCache]: Analyzing trace with hash 836464971, now seen corresponding path program 1 times [2024-10-10 22:42:40,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:42:40,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941180306] [2024-10-10 22:42:40,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:42:40,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:42:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:42:41,041 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-10-10 22:42:41,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:42:41,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941180306] [2024-10-10 22:42:41,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941180306] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:42:41,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:42:41,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 22:42:41,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438110171] [2024-10-10 22:42:41,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:42:41,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:42:41,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:42:41,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:42:41,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:42:41,045 INFO L87 Difference]: Start difference. First operand 26997 states and 32607 transitions. Second operand has 3 states, 3 states have (on average 279.3333333333333) internal successors, (838), 2 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:43,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:42:43,617 INFO L93 Difference]: Finished difference Result 75261 states and 91432 transitions. [2024-10-10 22:42:43,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:42:43,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 279.3333333333333) internal successors, (838), 2 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 919 [2024-10-10 22:42:43,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:42:43,697 INFO L225 Difference]: With dead ends: 75261 [2024-10-10 22:42:43,697 INFO L226 Difference]: Without dead ends: 49083 [2024-10-10 22:42:43,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:42:43,729 INFO L432 NwaCegarLoop]: 465 mSDtfsCounter, 1071 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 1063 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 3129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1063 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-10 22:42:43,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 472 Invalid, 3129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1063 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-10 22:42:43,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49083 states. [2024-10-10 22:42:44,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49083 to 40085. [2024-10-10 22:42:44,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40085 states, 40084 states have (on average 1.1765292884941623) internal successors, (47160), 40084 states have internal predecessors, (47160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:44,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40085 states to 40085 states and 47160 transitions. [2024-10-10 22:42:44,334 INFO L78 Accepts]: Start accepts. Automaton has 40085 states and 47160 transitions. Word has length 919 [2024-10-10 22:42:44,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:42:44,334 INFO L471 AbstractCegarLoop]: Abstraction has 40085 states and 47160 transitions. [2024-10-10 22:42:44,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 279.3333333333333) internal successors, (838), 2 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:44,335 INFO L276 IsEmpty]: Start isEmpty. Operand 40085 states and 47160 transitions. [2024-10-10 22:42:44,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 963 [2024-10-10 22:42:44,375 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:42:44,376 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:42:44,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-10 22:42:44,376 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:42:44,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:42:44,377 INFO L85 PathProgramCache]: Analyzing trace with hash 809043540, now seen corresponding path program 1 times [2024-10-10 22:42:44,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:42:44,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537856085] [2024-10-10 22:42:44,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:42:44,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:42:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:42:45,004 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-10 22:42:45,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:42:45,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537856085] [2024-10-10 22:42:45,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537856085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:42:45,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:42:45,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 22:42:45,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004717425] [2024-10-10 22:42:45,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:42:45,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:42:45,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:42:45,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:42:45,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:42:45,008 INFO L87 Difference]: Start difference. First operand 40085 states and 47160 transitions. Second operand has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:47,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:42:47,507 INFO L93 Difference]: Finished difference Result 88349 states and 103363 transitions. [2024-10-10 22:42:47,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:42:47,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 962 [2024-10-10 22:42:47,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:42:47,565 INFO L225 Difference]: With dead ends: 88349 [2024-10-10 22:42:47,565 INFO L226 Difference]: Without dead ends: 44993 [2024-10-10 22:42:47,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:42:47,603 INFO L432 NwaCegarLoop]: 1395 mSDtfsCounter, 928 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 1006 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 2982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1006 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-10 22:42:47,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 1402 Invalid, 2982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1006 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-10 22:42:47,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44993 states. [2024-10-10 22:42:48,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44993 to 40903. [2024-10-10 22:42:48,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40903 states, 40902 states have (on average 1.1142731406777175) internal successors, (45576), 40902 states have internal predecessors, (45576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:48,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40903 states to 40903 states and 45576 transitions. [2024-10-10 22:42:48,677 INFO L78 Accepts]: Start accepts. Automaton has 40903 states and 45576 transitions. Word has length 962 [2024-10-10 22:42:48,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:42:48,678 INFO L471 AbstractCegarLoop]: Abstraction has 40903 states and 45576 transitions. [2024-10-10 22:42:48,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:48,678 INFO L276 IsEmpty]: Start isEmpty. Operand 40903 states and 45576 transitions. [2024-10-10 22:42:48,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1004 [2024-10-10 22:42:48,736 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:42:48,736 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:42:48,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-10 22:42:48,737 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:42:48,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:42:48,738 INFO L85 PathProgramCache]: Analyzing trace with hash -2058362073, now seen corresponding path program 1 times [2024-10-10 22:42:48,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:42:48,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27973329] [2024-10-10 22:42:48,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:42:48,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:42:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:42:50,011 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-10-10 22:42:50,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:42:50,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27973329] [2024-10-10 22:42:50,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27973329] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:42:50,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:42:50,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 22:42:50,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983976487] [2024-10-10 22:42:50,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:42:50,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-10 22:42:50,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:42:50,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-10 22:42:50,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-10 22:42:50,020 INFO L87 Difference]: Start difference. First operand 40903 states and 45576 transitions. Second operand has 4 states, 4 states have (on average 220.75) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:52,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:42:52,581 INFO L93 Difference]: Finished difference Result 80987 states and 90321 transitions. [2024-10-10 22:42:52,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-10 22:42:52,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 220.75) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1003 [2024-10-10 22:42:52,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:42:52,625 INFO L225 Difference]: With dead ends: 80987 [2024-10-10 22:42:52,626 INFO L226 Difference]: Without dead ends: 40903 [2024-10-10 22:42:52,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-10 22:42:52,659 INFO L432 NwaCegarLoop]: 750 mSDtfsCounter, 959 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 3408 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 959 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 3413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-10 22:42:52,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [959 Valid, 1291 Invalid, 3413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3408 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-10 22:42:52,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40903 states. [2024-10-10 22:42:53,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40903 to 40903. [2024-10-10 22:42:53,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40903 states, 40902 states have (on average 1.1141264485844213) internal successors, (45570), 40902 states have internal predecessors, (45570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:53,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40903 states to 40903 states and 45570 transitions. [2024-10-10 22:42:53,143 INFO L78 Accepts]: Start accepts. Automaton has 40903 states and 45570 transitions. Word has length 1003 [2024-10-10 22:42:53,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:42:53,144 INFO L471 AbstractCegarLoop]: Abstraction has 40903 states and 45570 transitions. [2024-10-10 22:42:53,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 220.75) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:53,144 INFO L276 IsEmpty]: Start isEmpty. Operand 40903 states and 45570 transitions. [2024-10-10 22:42:53,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1027 [2024-10-10 22:42:53,182 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:42:53,182 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:42:53,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-10 22:42:53,183 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:42:53,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:42:53,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1292820681, now seen corresponding path program 1 times [2024-10-10 22:42:53,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:42:53,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619866132] [2024-10-10 22:42:53,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:42:53,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:42:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:42:53,760 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-10-10 22:42:53,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:42:53,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619866132] [2024-10-10 22:42:53,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619866132] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:42:53,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:42:53,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 22:42:53,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697568520] [2024-10-10 22:42:53,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:42:53,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:42:53,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:42:53,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:42:53,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:42:53,765 INFO L87 Difference]: Start difference. First operand 40903 states and 45570 transitions. Second operand has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 2 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:56,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:42:56,539 INFO L93 Difference]: Finished difference Result 89167 states and 100063 transitions. [2024-10-10 22:42:56,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:42:56,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 2 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1026 [2024-10-10 22:42:56,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:42:56,592 INFO L225 Difference]: With dead ends: 89167 [2024-10-10 22:42:56,592 INFO L226 Difference]: Without dead ends: 49083 [2024-10-10 22:42:56,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:42:56,632 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 926 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2276 mSolverCounterSat, 927 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 3203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 927 IncrementalHoareTripleChecker+Valid, 2276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-10 22:42:56,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 271 Invalid, 3203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [927 Valid, 2276 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-10 22:42:56,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49083 states. [2024-10-10 22:42:57,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49083 to 48265. [2024-10-10 22:42:57,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48265 states, 48264 states have (on average 1.111594563235538) internal successors, (53650), 48264 states have internal predecessors, (53650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:57,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48265 states to 48265 states and 53650 transitions. [2024-10-10 22:42:57,207 INFO L78 Accepts]: Start accepts. Automaton has 48265 states and 53650 transitions. Word has length 1026 [2024-10-10 22:42:57,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:42:57,207 INFO L471 AbstractCegarLoop]: Abstraction has 48265 states and 53650 transitions. [2024-10-10 22:42:57,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 2 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:42:57,208 INFO L276 IsEmpty]: Start isEmpty. Operand 48265 states and 53650 transitions. [2024-10-10 22:42:57,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1071 [2024-10-10 22:42:57,250 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:42:57,251 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:42:57,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-10 22:42:57,251 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:42:57,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:42:57,252 INFO L85 PathProgramCache]: Analyzing trace with hash 549871266, now seen corresponding path program 1 times [2024-10-10 22:42:57,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:42:57,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243281253] [2024-10-10 22:42:57,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:42:57,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:42:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:42:58,052 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 407 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-10 22:42:58,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:42:58,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243281253] [2024-10-10 22:42:58,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243281253] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:42:58,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:42:58,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 22:42:58,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195534485] [2024-10-10 22:42:58,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:42:58,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:42:58,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:42:58,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:42:58,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:42:58,055 INFO L87 Difference]: Start difference. First operand 48265 states and 53650 transitions. Second operand has 3 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:43:00,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:43:00,756 INFO L93 Difference]: Finished difference Result 117797 states and 131521 transitions. [2024-10-10 22:43:00,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:43:00,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1070 [2024-10-10 22:43:00,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:43:00,832 INFO L225 Difference]: With dead ends: 117797 [2024-10-10 22:43:00,832 INFO L226 Difference]: Without dead ends: 70351 [2024-10-10 22:43:00,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:43:00,854 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 769 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2937 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 3289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 2937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-10 22:43:00,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 493 Invalid, 3289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 2937 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-10 22:43:00,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70351 states. [2024-10-10 22:43:01,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70351 to 68715. [2024-10-10 22:43:01,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68715 states, 68714 states have (on average 1.1067322525249585) internal successors, (76048), 68714 states have internal predecessors, (76048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:43:01,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68715 states to 68715 states and 76048 transitions. [2024-10-10 22:43:01,860 INFO L78 Accepts]: Start accepts. Automaton has 68715 states and 76048 transitions. Word has length 1070 [2024-10-10 22:43:01,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:43:01,861 INFO L471 AbstractCegarLoop]: Abstraction has 68715 states and 76048 transitions. [2024-10-10 22:43:01,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:43:01,861 INFO L276 IsEmpty]: Start isEmpty. Operand 68715 states and 76048 transitions. [2024-10-10 22:43:01,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1187 [2024-10-10 22:43:01,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:43:01,900 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:43:01,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-10 22:43:01,901 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:43:01,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:43:01,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1164686908, now seen corresponding path program 1 times [2024-10-10 22:43:01,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:43:01,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251084263] [2024-10-10 22:43:01,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:43:01,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:43:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:43:02,827 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 445 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2024-10-10 22:43:02,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:43:02,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251084263] [2024-10-10 22:43:02,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251084263] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:43:02,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:43:02,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 22:43:02,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320192796] [2024-10-10 22:43:02,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:43:02,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:43:02,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:43:02,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:43:02,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:43:02,831 INFO L87 Difference]: Start difference. First operand 68715 states and 76048 transitions. Second operand has 3 states, 3 states have (on average 332.0) internal successors, (996), 2 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:43:05,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:43:05,722 INFO L93 Difference]: Finished difference Result 165241 states and 183767 transitions. [2024-10-10 22:43:05,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:43:05,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 332.0) internal successors, (996), 2 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1186 [2024-10-10 22:43:05,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:43:05,839 INFO L225 Difference]: With dead ends: 165241 [2024-10-10 22:43:05,839 INFO L226 Difference]: Without dead ends: 97345 [2024-10-10 22:43:05,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:43:05,891 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 850 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 981 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 3148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 981 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-10 22:43:05,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 314 Invalid, 3148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [981 Valid, 2167 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-10 22:43:05,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97345 states. [2024-10-10 22:43:06,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97345 to 94073. [2024-10-10 22:43:06,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94073 states, 94072 states have (on average 1.0923547920741559) internal successors, (102760), 94072 states have internal predecessors, (102760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:43:07,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94073 states to 94073 states and 102760 transitions. [2024-10-10 22:43:07,017 INFO L78 Accepts]: Start accepts. Automaton has 94073 states and 102760 transitions. Word has length 1186 [2024-10-10 22:43:07,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:43:07,017 INFO L471 AbstractCegarLoop]: Abstraction has 94073 states and 102760 transitions. [2024-10-10 22:43:07,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 332.0) internal successors, (996), 2 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:43:07,018 INFO L276 IsEmpty]: Start isEmpty. Operand 94073 states and 102760 transitions. [2024-10-10 22:43:07,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1380 [2024-10-10 22:43:07,067 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:43:07,068 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:43:07,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-10 22:43:07,068 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:43:07,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:43:07,069 INFO L85 PathProgramCache]: Analyzing trace with hash 2088292908, now seen corresponding path program 1 times [2024-10-10 22:43:07,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:43:07,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271606586] [2024-10-10 22:43:07,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:43:07,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:43:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:43:08,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 1091 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-10-10 22:43:08,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:43:08,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271606586] [2024-10-10 22:43:08,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271606586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:43:08,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:43:08,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-10 22:43:08,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325673095] [2024-10-10 22:43:08,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:43:08,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:43:08,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:43:08,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:43:08,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:43:08,425 INFO L87 Difference]: Start difference. First operand 94073 states and 102760 transitions. Second operand has 3 states, 3 states have (on average 376.3333333333333) internal successors, (1129), 3 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:43:11,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:43:11,368 INFO L93 Difference]: Finished difference Result 191417 states and 208965 transitions. [2024-10-10 22:43:11,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:43:11,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 376.3333333333333) internal successors, (1129), 3 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1379 [2024-10-10 22:43:11,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:43:11,687 INFO L225 Difference]: With dead ends: 191417 [2024-10-10 22:43:11,687 INFO L226 Difference]: Without dead ends: 98163 [2024-10-10 22:43:11,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:43:11,726 INFO L432 NwaCegarLoop]: 1217 mSDtfsCounter, 664 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2942 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 3246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 2942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-10 22:43:11,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1224 Invalid, 3246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 2942 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-10 22:43:11,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98163 states. [2024-10-10 22:43:12,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98163 to 95709. [2024-10-10 22:43:12,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95709 states, 95708 states have (on average 1.081393404940026) internal successors, (103498), 95708 states have internal predecessors, (103498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:43:12,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95709 states to 95709 states and 103498 transitions. [2024-10-10 22:43:12,709 INFO L78 Accepts]: Start accepts. Automaton has 95709 states and 103498 transitions. Word has length 1379 [2024-10-10 22:43:12,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:43:12,709 INFO L471 AbstractCegarLoop]: Abstraction has 95709 states and 103498 transitions. [2024-10-10 22:43:12,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 376.3333333333333) internal successors, (1129), 3 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:43:12,709 INFO L276 IsEmpty]: Start isEmpty. Operand 95709 states and 103498 transitions. [2024-10-10 22:43:12,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1408 [2024-10-10 22:43:12,759 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:43:12,760 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:43:12,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-10 22:43:12,760 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:43:12,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:43:12,761 INFO L85 PathProgramCache]: Analyzing trace with hash 600455974, now seen corresponding path program 1 times [2024-10-10 22:43:12,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:43:12,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356284578] [2024-10-10 22:43:12,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:43:12,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:43:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat