./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.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/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.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 453217a894ab839ac749d51e6f81154421ad61236b47a16877fbef21d8ae30a8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:41:13,664 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:41:13,729 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:41:13,735 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:41:13,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:41:13,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:41:13,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:41:13,769 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:41:13,770 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:41:13,770 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:41:13,770 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:41:13,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:41:13,771 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:41:13,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:41:13,772 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:41:13,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:41:13,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:41:13,773 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:41:13,774 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:41:13,774 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:41:13,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:41:13,777 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:41:13,778 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:41:13,778 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:41:13,778 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:41:13,778 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:41:13,779 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:41:13,779 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:41:13,779 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:41:13,780 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:41:13,780 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:41:13,780 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:41:13,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:41:13,781 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:41:13,781 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:41:13,782 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:41:13,782 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:41:13,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:41:13,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:41:13,783 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:41:13,783 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:41:13,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:41:13,783 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 453217a894ab839ac749d51e6f81154421ad61236b47a16877fbef21d8ae30a8 [2024-10-11 03:41:14,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:41:14,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:41:14,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:41:14,090 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:41:14,090 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:41:14,092 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-11 03:41:15,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:41:15,826 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:41:15,828 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-11 03:41:15,845 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/fb5ced084/d3a847cecafc41dc92c96c555f556a9f/FLAGe0699b920 [2024-10-11 03:41:15,861 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/fb5ced084/d3a847cecafc41dc92c96c555f556a9f [2024-10-11 03:41:15,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:41:15,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:41:15,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:41:15,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:41:15,874 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:41:15,875 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:41:15" (1/1) ... [2024-10-11 03:41:15,876 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b77a40c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:41:15, skipping insertion in model container [2024-10-11 03:41:15,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:41:15" (1/1) ... [2024-10-11 03:41:15,953 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:41:16,223 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/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[7253,7266] [2024-10-11 03:41:16,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:41:16,308 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:41:16,360 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/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[7253,7266] [2024-10-11 03:41:16,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:41:16,409 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:41:16,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:41:16 WrapperNode [2024-10-11 03:41:16,410 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:41:16,411 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:41:16,412 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:41:16,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:41:16,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:41:16" (1/1) ... [2024-10-11 03:41:16,433 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:41:16" (1/1) ... [2024-10-11 03:41:16,474 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 710 [2024-10-11 03:41:16,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:41:16,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:41:16,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:41:16,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:41:16,489 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:41:16" (1/1) ... [2024-10-11 03:41:16,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:41:16" (1/1) ... [2024-10-11 03:41:16,493 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:41:16" (1/1) ... [2024-10-11 03:41:16,516 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]. [2024-10-11 03:41:16,516 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:41:16" (1/1) ... [2024-10-11 03:41:16,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:41:16" (1/1) ... [2024-10-11 03:41:16,535 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:41:16" (1/1) ... [2024-10-11 03:41:16,544 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:41:16" (1/1) ... [2024-10-11 03:41:16,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:41:16" (1/1) ... [2024-10-11 03:41:16,559 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:41:16" (1/1) ... [2024-10-11 03:41:16,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:41:16,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:41:16,569 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:41:16,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:41:16,571 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:41:16" (1/1) ... [2024-10-11 03:41:16,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:41:16,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:41:16,608 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) [2024-10-11 03:41:16,614 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 [2024-10-11 03:41:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:41:16,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:41:16,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:41:16,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:41:16,808 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:41:16,814 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:41:17,492 INFO L? ?]: Removed 87 outVars from TransFormulas that were not future-live. [2024-10-11 03:41:17,492 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:41:17,553 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:41:17,554 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 03:41:17,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:41:17 BoogieIcfgContainer [2024-10-11 03:41:17,555 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:41:17,558 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:41:17,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:41:17,563 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:41:17,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:41:15" (1/3) ... [2024-10-11 03:41:17,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@851109c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:41:17, skipping insertion in model container [2024-10-11 03:41:17,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:41:16" (2/3) ... [2024-10-11 03:41:17,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@851109c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:41:17, skipping insertion in model container [2024-10-11 03:41:17,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:41:17" (3/3) ... [2024-10-11 03:41:17,566 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-11 03:41:17,583 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:41:17,584 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:41:17,657 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:41:17,666 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;@2f461d35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:41:17,667 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:41:17,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 167 states have (on average 1.7305389221556886) internal successors, (289), 168 states have internal predecessors, (289), 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) [2024-10-11 03:41:17,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-11 03:41:17,683 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:17,684 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] [2024-10-11 03:41:17,685 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:17,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:17,693 INFO L85 PathProgramCache]: Analyzing trace with hash 2138576653, now seen corresponding path program 1 times [2024-10-11 03:41:17,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:17,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740697729] [2024-10-11 03:41:17,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:17,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:18,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:18,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:18,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740697729] [2024-10-11 03:41:18,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740697729] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:18,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:18,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:41:18,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612280732] [2024-10-11 03:41:18,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:18,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:41:18,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:18,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:41:18,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:41:18,507 INFO L87 Difference]: Start difference. First operand has 169 states, 167 states have (on average 1.7305389221556886) internal successors, (289), 168 states have internal predecessors, (289), 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 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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) [2024-10-11 03:41:18,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:18,747 INFO L93 Difference]: Finished difference Result 599 states and 974 transitions. [2024-10-11 03:41:18,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:41:18,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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 63 [2024-10-11 03:41:18,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:18,770 INFO L225 Difference]: With dead ends: 599 [2024-10-11 03:41:18,770 INFO L226 Difference]: Without dead ends: 511 [2024-10-11 03:41:18,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:41:18,779 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 1751 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1751 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:18,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1751 Valid, 928 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:41:18,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-10-11 03:41:18,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 260. [2024-10-11 03:41:18,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 259 states have (on average 1.501930501930502) internal successors, (389), 259 states have internal predecessors, (389), 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) [2024-10-11 03:41:18,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 389 transitions. [2024-10-11 03:41:18,867 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 389 transitions. Word has length 63 [2024-10-11 03:41:18,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:18,868 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 389 transitions. [2024-10-11 03:41:18,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 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) [2024-10-11 03:41:18,869 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 389 transitions. [2024-10-11 03:41:18,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 03:41:18,873 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:18,873 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] [2024-10-11 03:41:18,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:41:18,874 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:18,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:18,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1609948100, now seen corresponding path program 1 times [2024-10-11 03:41:18,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:18,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193955066] [2024-10-11 03:41:18,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:18,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:19,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:19,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:19,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193955066] [2024-10-11 03:41:19,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193955066] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:19,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:19,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:41:19,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683046920] [2024-10-11 03:41:19,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:19,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:41:19,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:19,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:41:19,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:41:19,191 INFO L87 Difference]: Start difference. First operand 260 states and 389 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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) [2024-10-11 03:41:19,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:19,367 INFO L93 Difference]: Finished difference Result 968 states and 1485 transitions. [2024-10-11 03:41:19,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:41:19,368 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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 64 [2024-10-11 03:41:19,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:19,372 INFO L225 Difference]: With dead ends: 968 [2024-10-11 03:41:19,372 INFO L226 Difference]: Without dead ends: 766 [2024-10-11 03:41:19,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:41:19,374 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 898 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:19,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [898 Valid, 929 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:41:19,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2024-10-11 03:41:19,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 760. [2024-10-11 03:41:19,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 759 states have (on average 1.523056653491436) internal successors, (1156), 759 states have internal predecessors, (1156), 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) [2024-10-11 03:41:19,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1156 transitions. [2024-10-11 03:41:19,404 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1156 transitions. Word has length 64 [2024-10-11 03:41:19,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:19,405 INFO L471 AbstractCegarLoop]: Abstraction has 760 states and 1156 transitions. [2024-10-11 03:41:19,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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) [2024-10-11 03:41:19,405 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1156 transitions. [2024-10-11 03:41:19,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-11 03:41:19,408 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:19,408 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] [2024-10-11 03:41:19,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:41:19,408 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:19,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:19,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1599163379, now seen corresponding path program 1 times [2024-10-11 03:41:19,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:19,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726163514] [2024-10-11 03:41:19,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:19,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:19,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:19,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:19,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726163514] [2024-10-11 03:41:19,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726163514] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:19,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:19,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:41:19,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216380832] [2024-10-11 03:41:19,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:19,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:41:19,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:19,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:41:19,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:41:19,591 INFO L87 Difference]: Start difference. First operand 760 states and 1156 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-10-11 03:41:19,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:19,838 INFO L93 Difference]: Finished difference Result 2032 states and 3130 transitions. [2024-10-11 03:41:19,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:41:19,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 65 [2024-10-11 03:41:19,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:19,847 INFO L225 Difference]: With dead ends: 2032 [2024-10-11 03:41:19,847 INFO L226 Difference]: Without dead ends: 1318 [2024-10-11 03:41:19,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:41:19,852 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 941 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:19,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 231 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:41:19,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2024-10-11 03:41:19,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1316. [2024-10-11 03:41:19,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 1315 states have (on average 1.5307984790874525) internal successors, (2013), 1315 states have internal predecessors, (2013), 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) [2024-10-11 03:41:19,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 2013 transitions. [2024-10-11 03:41:19,896 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 2013 transitions. Word has length 65 [2024-10-11 03:41:19,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:19,896 INFO L471 AbstractCegarLoop]: Abstraction has 1316 states and 2013 transitions. [2024-10-11 03:41:19,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-10-11 03:41:19,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 2013 transitions. [2024-10-11 03:41:19,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-11 03:41:19,903 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:19,903 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] [2024-10-11 03:41:19,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:41:19,904 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:19,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:19,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1629035921, now seen corresponding path program 1 times [2024-10-11 03:41:19,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:19,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788353634] [2024-10-11 03:41:19,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:19,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:20,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:20,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:20,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788353634] [2024-10-11 03:41:20,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788353634] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:20,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:20,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:41:20,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590005275] [2024-10-11 03:41:20,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:20,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:41:20,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:41:20,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:41:20,065 INFO L87 Difference]: Start difference. First operand 1316 states and 2013 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-10-11 03:41:20,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:20,295 INFO L93 Difference]: Finished difference Result 3528 states and 5447 transitions. [2024-10-11 03:41:20,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:41:20,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 65 [2024-10-11 03:41:20,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:20,304 INFO L225 Difference]: With dead ends: 3528 [2024-10-11 03:41:20,305 INFO L226 Difference]: Without dead ends: 2308 [2024-10-11 03:41:20,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:41:20,308 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 867 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:20,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 237 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:41:20,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2024-10-11 03:41:20,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2306. [2024-10-11 03:41:20,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2306 states, 2305 states have (on average 1.5336225596529285) internal successors, (3535), 2305 states have internal predecessors, (3535), 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) [2024-10-11 03:41:20,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 3535 transitions. [2024-10-11 03:41:20,360 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 3535 transitions. Word has length 65 [2024-10-11 03:41:20,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:20,361 INFO L471 AbstractCegarLoop]: Abstraction has 2306 states and 3535 transitions. [2024-10-11 03:41:20,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-10-11 03:41:20,361 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 3535 transitions. [2024-10-11 03:41:20,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-11 03:41:20,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:20,364 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] [2024-10-11 03:41:20,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:41:20,365 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:20,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:20,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1882992734, now seen corresponding path program 1 times [2024-10-11 03:41:20,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:20,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884183566] [2024-10-11 03:41:20,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:20,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:20,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:20,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:20,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884183566] [2024-10-11 03:41:20,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884183566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:20,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:20,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:41:20,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156901019] [2024-10-11 03:41:20,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:20,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:41:20,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:20,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:41:20,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:41:20,498 INFO L87 Difference]: Start difference. First operand 2306 states and 3535 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-10-11 03:41:20,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:20,754 INFO L93 Difference]: Finished difference Result 6569 states and 10122 transitions. [2024-10-11 03:41:20,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:41:20,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 65 [2024-10-11 03:41:20,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:20,772 INFO L225 Difference]: With dead ends: 6569 [2024-10-11 03:41:20,773 INFO L226 Difference]: Without dead ends: 4332 [2024-10-11 03:41:20,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:41:20,778 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 897 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:20,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 233 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:41:20,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4332 states. [2024-10-11 03:41:20,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4332 to 4330. [2024-10-11 03:41:20,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4330 states, 4329 states have (on average 1.5308385308385308) internal successors, (6627), 4329 states have internal predecessors, (6627), 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) [2024-10-11 03:41:20,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4330 states to 4330 states and 6627 transitions. [2024-10-11 03:41:20,901 INFO L78 Accepts]: Start accepts. Automaton has 4330 states and 6627 transitions. Word has length 65 [2024-10-11 03:41:20,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:20,903 INFO L471 AbstractCegarLoop]: Abstraction has 4330 states and 6627 transitions. [2024-10-11 03:41:20,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-10-11 03:41:20,904 INFO L276 IsEmpty]: Start isEmpty. Operand 4330 states and 6627 transitions. [2024-10-11 03:41:20,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 03:41:20,906 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:20,906 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] [2024-10-11 03:41:20,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:41:20,907 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:20,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:20,908 INFO L85 PathProgramCache]: Analyzing trace with hash 67319184, now seen corresponding path program 1 times [2024-10-11 03:41:20,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:20,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129426628] [2024-10-11 03:41:20,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:20,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:21,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:21,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:21,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129426628] [2024-10-11 03:41:21,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129426628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:21,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:21,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:41:21,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144287405] [2024-10-11 03:41:21,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:21,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:41:21,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:21,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:41:21,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:41:21,259 INFO L87 Difference]: Start difference. First operand 4330 states and 6627 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-10-11 03:41:21,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:21,304 INFO L93 Difference]: Finished difference Result 4460 states and 6820 transitions. [2024-10-11 03:41:21,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:41:21,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2024-10-11 03:41:21,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:21,322 INFO L225 Difference]: With dead ends: 4460 [2024-10-11 03:41:21,322 INFO L226 Difference]: Without dead ends: 4458 [2024-10-11 03:41:21,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:41:21,327 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:21,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 913 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:41:21,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4458 states. [2024-10-11 03:41:21,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4458 to 4458. [2024-10-11 03:41:21,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4458 states, 4457 states have (on average 1.515593448507965) internal successors, (6755), 4457 states have internal predecessors, (6755), 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) [2024-10-11 03:41:21,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4458 states to 4458 states and 6755 transitions. [2024-10-11 03:41:21,435 INFO L78 Accepts]: Start accepts. Automaton has 4458 states and 6755 transitions. Word has length 66 [2024-10-11 03:41:21,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:21,435 INFO L471 AbstractCegarLoop]: Abstraction has 4458 states and 6755 transitions. [2024-10-11 03:41:21,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-10-11 03:41:21,436 INFO L276 IsEmpty]: Start isEmpty. Operand 4458 states and 6755 transitions. [2024-10-11 03:41:21,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-11 03:41:21,437 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:21,437 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] [2024-10-11 03:41:21,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:41:21,438 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:21,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:21,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1947731721, now seen corresponding path program 1 times [2024-10-11 03:41:21,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:21,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612222178] [2024-10-11 03:41:21,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:21,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:21,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:21,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:21,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612222178] [2024-10-11 03:41:21,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612222178] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:21,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:21,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:41:21,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727572544] [2024-10-11 03:41:21,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:21,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 03:41:21,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:21,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 03:41:21,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:41:21,645 INFO L87 Difference]: Start difference. First operand 4458 states and 6755 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-10-11 03:41:21,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:21,716 INFO L93 Difference]: Finished difference Result 12110 states and 18357 transitions. [2024-10-11 03:41:21,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 03:41:21,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 67 [2024-10-11 03:41:21,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:21,747 INFO L225 Difference]: With dead ends: 12110 [2024-10-11 03:41:21,748 INFO L226 Difference]: Without dead ends: 8060 [2024-10-11 03:41:21,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 03:41:21,759 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 160 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:21,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 679 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:41:21,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8060 states. [2024-10-11 03:41:21,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8060 to 8058. [2024-10-11 03:41:21,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8058 states, 8057 states have (on average 1.5026684870299118) internal successors, (12107), 8057 states have internal predecessors, (12107), 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) [2024-10-11 03:41:21,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8058 states to 8058 states and 12107 transitions. [2024-10-11 03:41:21,977 INFO L78 Accepts]: Start accepts. Automaton has 8058 states and 12107 transitions. Word has length 67 [2024-10-11 03:41:21,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:21,978 INFO L471 AbstractCegarLoop]: Abstraction has 8058 states and 12107 transitions. [2024-10-11 03:41:21,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-10-11 03:41:21,978 INFO L276 IsEmpty]: Start isEmpty. Operand 8058 states and 12107 transitions. [2024-10-11 03:41:21,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 03:41:21,980 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:21,980 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] [2024-10-11 03:41:21,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:41:21,980 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:21,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:21,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1990331960, now seen corresponding path program 1 times [2024-10-11 03:41:21,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:21,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335733525] [2024-10-11 03:41:21,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:21,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:22,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:22,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:22,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335733525] [2024-10-11 03:41:22,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335733525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:22,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:22,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:41:22,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832727014] [2024-10-11 03:41:22,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:22,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:41:22,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:22,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:41:22,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:41:22,057 INFO L87 Difference]: Start difference. First operand 8058 states and 12107 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-10-11 03:41:22,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:22,115 INFO L93 Difference]: Finished difference Result 11122 states and 16677 transitions. [2024-10-11 03:41:22,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:41:22,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2024-10-11 03:41:22,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:22,145 INFO L225 Difference]: With dead ends: 11122 [2024-10-11 03:41:22,145 INFO L226 Difference]: Without dead ends: 8868 [2024-10-11 03:41:22,153 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 [2024-10-11 03:41:22,154 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 136 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:22,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 441 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:41:22,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8868 states. [2024-10-11 03:41:22,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8868 to 7882. [2024-10-11 03:41:22,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7882 states, 7881 states have (on average 1.4753203908133485) internal successors, (11627), 7881 states have internal predecessors, (11627), 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) [2024-10-11 03:41:22,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7882 states to 7882 states and 11627 transitions. [2024-10-11 03:41:22,368 INFO L78 Accepts]: Start accepts. Automaton has 7882 states and 11627 transitions. Word has length 68 [2024-10-11 03:41:22,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:22,368 INFO L471 AbstractCegarLoop]: Abstraction has 7882 states and 11627 transitions. [2024-10-11 03:41:22,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-10-11 03:41:22,369 INFO L276 IsEmpty]: Start isEmpty. Operand 7882 states and 11627 transitions. [2024-10-11 03:41:22,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 03:41:22,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:22,372 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] [2024-10-11 03:41:22,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:41:22,373 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:22,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:22,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1506211241, now seen corresponding path program 1 times [2024-10-11 03:41:22,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:22,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23043632] [2024-10-11 03:41:22,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:22,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:22,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:22,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:22,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23043632] [2024-10-11 03:41:22,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23043632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:22,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:22,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:41:22,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406746451] [2024-10-11 03:41:22,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:22,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:41:22,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:22,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:41:22,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:41:22,438 INFO L87 Difference]: Start difference. First operand 7882 states and 11627 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-10-11 03:41:22,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:22,499 INFO L93 Difference]: Finished difference Result 13071 states and 19308 transitions. [2024-10-11 03:41:22,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:41:22,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2024-10-11 03:41:22,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:22,522 INFO L225 Difference]: With dead ends: 13071 [2024-10-11 03:41:22,523 INFO L226 Difference]: Without dead ends: 9033 [2024-10-11 03:41:22,531 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 [2024-10-11 03:41:22,532 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 146 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:22,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 439 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:41:22,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9033 states. [2024-10-11 03:41:22,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9033 to 8919. [2024-10-11 03:41:22,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8919 states, 8918 states have (on average 1.4489795918367347) internal successors, (12922), 8918 states have internal predecessors, (12922), 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) [2024-10-11 03:41:22,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8919 states to 8919 states and 12922 transitions. [2024-10-11 03:41:22,801 INFO L78 Accepts]: Start accepts. Automaton has 8919 states and 12922 transitions. Word has length 68 [2024-10-11 03:41:22,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:22,801 INFO L471 AbstractCegarLoop]: Abstraction has 8919 states and 12922 transitions. [2024-10-11 03:41:22,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-10-11 03:41:22,802 INFO L276 IsEmpty]: Start isEmpty. Operand 8919 states and 12922 transitions. [2024-10-11 03:41:22,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 03:41:22,805 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:22,805 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] [2024-10-11 03:41:22,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:41:22,805 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:22,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:22,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1036645208, now seen corresponding path program 1 times [2024-10-11 03:41:22,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:22,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035004621] [2024-10-11 03:41:22,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:22,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:22,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:22,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:22,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035004621] [2024-10-11 03:41:22,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035004621] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:22,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:22,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:41:22,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365675911] [2024-10-11 03:41:22,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:22,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:41:22,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:22,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:41:22,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:41:22,992 INFO L87 Difference]: Start difference. First operand 8919 states and 12922 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2024-10-11 03:41:23,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:23,202 INFO L93 Difference]: Finished difference Result 18116 states and 26450 transitions. [2024-10-11 03:41:23,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:41:23,203 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 68 [2024-10-11 03:41:23,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:23,231 INFO L225 Difference]: With dead ends: 18116 [2024-10-11 03:41:23,231 INFO L226 Difference]: Without dead ends: 14738 [2024-10-11 03:41:23,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:41:23,242 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 1047 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:23,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 1264 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:41:23,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14738 states. [2024-10-11 03:41:23,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14738 to 12298. [2024-10-11 03:41:23,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12298 states, 12297 states have (on average 1.450191103521184) internal successors, (17833), 12297 states have internal predecessors, (17833), 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) [2024-10-11 03:41:23,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12298 states to 12298 states and 17833 transitions. [2024-10-11 03:41:23,516 INFO L78 Accepts]: Start accepts. Automaton has 12298 states and 17833 transitions. Word has length 68 [2024-10-11 03:41:23,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:23,517 INFO L471 AbstractCegarLoop]: Abstraction has 12298 states and 17833 transitions. [2024-10-11 03:41:23,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2024-10-11 03:41:23,517 INFO L276 IsEmpty]: Start isEmpty. Operand 12298 states and 17833 transitions. [2024-10-11 03:41:23,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 03:41:23,519 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:23,520 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] [2024-10-11 03:41:23,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 03:41:23,520 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:23,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:23,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1563730231, now seen corresponding path program 1 times [2024-10-11 03:41:23,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:23,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622481709] [2024-10-11 03:41:23,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:23,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:23,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:23,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:23,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622481709] [2024-10-11 03:41:23,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622481709] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:23,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:23,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:41:23,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482584180] [2024-10-11 03:41:23,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:23,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:41:23,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:23,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:41:23,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:41:23,595 INFO L87 Difference]: Start difference. First operand 12298 states and 17833 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-10-11 03:41:23,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:23,695 INFO L93 Difference]: Finished difference Result 32079 states and 46503 transitions. [2024-10-11 03:41:23,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:41:23,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2024-10-11 03:41:23,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:23,743 INFO L225 Difference]: With dead ends: 32079 [2024-10-11 03:41:23,743 INFO L226 Difference]: Without dead ends: 21710 [2024-10-11 03:41:23,765 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 [2024-10-11 03:41:23,766 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 161 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:23,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 452 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:41:23,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21710 states. [2024-10-11 03:41:24,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21710 to 21708. [2024-10-11 03:41:24,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21708 states, 21707 states have (on average 1.4337310544985489) internal successors, (31122), 21707 states have internal predecessors, (31122), 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) [2024-10-11 03:41:24,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21708 states to 21708 states and 31122 transitions. [2024-10-11 03:41:24,352 INFO L78 Accepts]: Start accepts. Automaton has 21708 states and 31122 transitions. Word has length 68 [2024-10-11 03:41:24,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:24,353 INFO L471 AbstractCegarLoop]: Abstraction has 21708 states and 31122 transitions. [2024-10-11 03:41:24,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-10-11 03:41:24,353 INFO L276 IsEmpty]: Start isEmpty. Operand 21708 states and 31122 transitions. [2024-10-11 03:41:24,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 03:41:24,357 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:24,357 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] [2024-10-11 03:41:24,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 03:41:24,358 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:24,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:24,358 INFO L85 PathProgramCache]: Analyzing trace with hash 251140616, now seen corresponding path program 1 times [2024-10-11 03:41:24,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:24,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816162399] [2024-10-11 03:41:24,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:24,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:24,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:24,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:24,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816162399] [2024-10-11 03:41:24,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816162399] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:24,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:24,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:41:24,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561736654] [2024-10-11 03:41:24,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:24,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:41:24,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:24,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:41:24,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:41:24,648 INFO L87 Difference]: Start difference. First operand 21708 states and 31122 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2024-10-11 03:41:24,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:24,847 INFO L93 Difference]: Finished difference Result 30958 states and 44555 transitions. [2024-10-11 03:41:24,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:41:24,848 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 68 [2024-10-11 03:41:24,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:24,911 INFO L225 Difference]: With dead ends: 30958 [2024-10-11 03:41:24,913 INFO L226 Difference]: Without dead ends: 29528 [2024-10-11 03:41:24,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:41:24,929 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 1052 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:24,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 1131 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:41:24,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29528 states. [2024-10-11 03:41:25,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29528 to 23122. [2024-10-11 03:41:25,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23122 states, 23121 states have (on average 1.4337615155053847) internal successors, (33150), 23121 states have internal predecessors, (33150), 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) [2024-10-11 03:41:25,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23122 states to 23122 states and 33150 transitions. [2024-10-11 03:41:25,457 INFO L78 Accepts]: Start accepts. Automaton has 23122 states and 33150 transitions. Word has length 68 [2024-10-11 03:41:25,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:25,457 INFO L471 AbstractCegarLoop]: Abstraction has 23122 states and 33150 transitions. [2024-10-11 03:41:25,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2024-10-11 03:41:25,458 INFO L276 IsEmpty]: Start isEmpty. Operand 23122 states and 33150 transitions. [2024-10-11 03:41:25,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 03:41:25,461 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:25,461 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] [2024-10-11 03:41:25,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 03:41:25,462 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:25,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:25,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1870516791, now seen corresponding path program 1 times [2024-10-11 03:41:25,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:25,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418109289] [2024-10-11 03:41:25,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:25,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:25,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:25,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:25,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418109289] [2024-10-11 03:41:25,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418109289] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:25,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:25,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:41:25,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919119781] [2024-10-11 03:41:25,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:25,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:41:25,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:25,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:41:25,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:41:25,600 INFO L87 Difference]: Start difference. First operand 23122 states and 33150 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2024-10-11 03:41:25,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:25,901 INFO L93 Difference]: Finished difference Result 34078 states and 49065 transitions. [2024-10-11 03:41:25,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:41:25,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 68 [2024-10-11 03:41:25,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:25,970 INFO L225 Difference]: With dead ends: 34078 [2024-10-11 03:41:25,971 INFO L226 Difference]: Without dead ends: 30904 [2024-10-11 03:41:25,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:41:25,987 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 971 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 1277 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:25,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 1277 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:41:26,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30904 states. [2024-10-11 03:41:26,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30904 to 26278. [2024-10-11 03:41:26,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26278 states, 26277 states have (on average 1.4338014232979412) internal successors, (37676), 26277 states have internal predecessors, (37676), 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) [2024-10-11 03:41:26,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26278 states to 26278 states and 37676 transitions. [2024-10-11 03:41:26,580 INFO L78 Accepts]: Start accepts. Automaton has 26278 states and 37676 transitions. Word has length 68 [2024-10-11 03:41:26,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:26,581 INFO L471 AbstractCegarLoop]: Abstraction has 26278 states and 37676 transitions. [2024-10-11 03:41:26,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2024-10-11 03:41:26,581 INFO L276 IsEmpty]: Start isEmpty. Operand 26278 states and 37676 transitions. [2024-10-11 03:41:26,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 03:41:26,585 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:26,585 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] [2024-10-11 03:41:26,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 03:41:26,585 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:26,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:26,586 INFO L85 PathProgramCache]: Analyzing trace with hash 334796265, now seen corresponding path program 1 times [2024-10-11 03:41:26,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:26,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191068735] [2024-10-11 03:41:26,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:26,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:26,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:26,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:26,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191068735] [2024-10-11 03:41:26,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191068735] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:26,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:26,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:41:26,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280184904] [2024-10-11 03:41:26,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:26,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 03:41:26,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:26,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 03:41:26,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 03:41:26,713 INFO L87 Difference]: Start difference. First operand 26278 states and 37676 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2024-10-11 03:41:27,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:27,106 INFO L93 Difference]: Finished difference Result 44616 states and 64315 transitions. [2024-10-11 03:41:27,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 03:41:27,107 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 68 [2024-10-11 03:41:27,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:27,173 INFO L225 Difference]: With dead ends: 44616 [2024-10-11 03:41:27,173 INFO L226 Difference]: Without dead ends: 37298 [2024-10-11 03:41:27,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:41:27,188 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 1055 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:27,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 1252 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:41:27,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37298 states. [2024-10-11 03:41:27,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37298 to 31856. [2024-10-11 03:41:27,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31856 states, 31855 states have (on average 1.434186156019463) internal successors, (45686), 31855 states have internal predecessors, (45686), 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) [2024-10-11 03:41:27,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31856 states to 31856 states and 45686 transitions. [2024-10-11 03:41:27,810 INFO L78 Accepts]: Start accepts. Automaton has 31856 states and 45686 transitions. Word has length 68 [2024-10-11 03:41:27,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:27,810 INFO L471 AbstractCegarLoop]: Abstraction has 31856 states and 45686 transitions. [2024-10-11 03:41:27,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2024-10-11 03:41:27,810 INFO L276 IsEmpty]: Start isEmpty. Operand 31856 states and 45686 transitions. [2024-10-11 03:41:27,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-11 03:41:27,816 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:27,816 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] [2024-10-11 03:41:27,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 03:41:27,816 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:27,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:27,817 INFO L85 PathProgramCache]: Analyzing trace with hash -109434047, now seen corresponding path program 1 times [2024-10-11 03:41:27,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:27,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973636804] [2024-10-11 03:41:27,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:27,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:27,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:27,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:27,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973636804] [2024-10-11 03:41:27,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973636804] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:27,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:27,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:41:27,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121440403] [2024-10-11 03:41:27,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:27,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:41:27,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:27,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:41:27,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:41:27,892 INFO L87 Difference]: Start difference. First operand 31856 states and 45686 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2024-10-11 03:41:28,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:28,246 INFO L93 Difference]: Finished difference Result 64720 states and 92345 transitions. [2024-10-11 03:41:28,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:41:28,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2024-10-11 03:41:28,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:28,299 INFO L225 Difference]: With dead ends: 64720 [2024-10-11 03:41:28,299 INFO L226 Difference]: Without dead ends: 35117 [2024-10-11 03:41:28,338 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 [2024-10-11 03:41:28,339 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 151 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:28,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 531 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:41:28,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35117 states. [2024-10-11 03:41:28,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35117 to 32089. [2024-10-11 03:41:28,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32089 states, 32088 states have (on average 1.3965968586387434) internal successors, (44814), 32088 states have internal predecessors, (44814), 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) [2024-10-11 03:41:28,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32089 states to 32089 states and 44814 transitions. [2024-10-11 03:41:28,884 INFO L78 Accepts]: Start accepts. Automaton has 32089 states and 44814 transitions. Word has length 71 [2024-10-11 03:41:28,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:28,884 INFO L471 AbstractCegarLoop]: Abstraction has 32089 states and 44814 transitions. [2024-10-11 03:41:28,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2024-10-11 03:41:28,885 INFO L276 IsEmpty]: Start isEmpty. Operand 32089 states and 44814 transitions. [2024-10-11 03:41:28,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-11 03:41:28,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:28,893 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] [2024-10-11 03:41:28,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 03:41:28,893 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:28,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:28,894 INFO L85 PathProgramCache]: Analyzing trace with hash 752251893, now seen corresponding path program 1 times [2024-10-11 03:41:28,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:28,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655849323] [2024-10-11 03:41:28,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:28,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:29,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:29,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:29,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655849323] [2024-10-11 03:41:29,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655849323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:29,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:29,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:41:29,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559753009] [2024-10-11 03:41:29,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:29,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:41:29,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:29,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:41:29,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:41:29,208 INFO L87 Difference]: Start difference. First operand 32089 states and 44814 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 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) [2024-10-11 03:41:29,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:29,734 INFO L93 Difference]: Finished difference Result 78024 states and 108465 transitions. [2024-10-11 03:41:29,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:41:29,735 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 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 73 [2024-10-11 03:41:29,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:29,808 INFO L225 Difference]: With dead ends: 78024 [2024-10-11 03:41:29,808 INFO L226 Difference]: Without dead ends: 67651 [2024-10-11 03:41:29,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:41:29,832 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 1706 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:29,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 451 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:41:30,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67651 states. [2024-10-11 03:41:30,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67651 to 32113. [2024-10-11 03:41:30,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32113 states, 32112 states have (on average 1.396549576482312) internal successors, (44846), 32112 states have internal predecessors, (44846), 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) [2024-10-11 03:41:30,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32113 states to 32113 states and 44846 transitions. [2024-10-11 03:41:30,675 INFO L78 Accepts]: Start accepts. Automaton has 32113 states and 44846 transitions. Word has length 73 [2024-10-11 03:41:30,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:30,676 INFO L471 AbstractCegarLoop]: Abstraction has 32113 states and 44846 transitions. [2024-10-11 03:41:30,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 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) [2024-10-11 03:41:30,676 INFO L276 IsEmpty]: Start isEmpty. Operand 32113 states and 44846 transitions. [2024-10-11 03:41:30,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-11 03:41:30,683 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:30,683 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] [2024-10-11 03:41:30,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 03:41:30,683 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:30,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:30,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1588315340, now seen corresponding path program 1 times [2024-10-11 03:41:30,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:30,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372746617] [2024-10-11 03:41:30,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:30,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:30,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:30,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:30,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372746617] [2024-10-11 03:41:30,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372746617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:30,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:30,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:41:30,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630176739] [2024-10-11 03:41:30,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:30,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:41:30,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:30,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:41:30,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:41:30,862 INFO L87 Difference]: Start difference. First operand 32113 states and 44846 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 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) [2024-10-11 03:41:31,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:31,655 INFO L93 Difference]: Finished difference Result 95961 states and 132667 transitions. [2024-10-11 03:41:31,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:41:31,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 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 73 [2024-10-11 03:41:31,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:31,759 INFO L225 Difference]: With dead ends: 95961 [2024-10-11 03:41:31,759 INFO L226 Difference]: Without dead ends: 84197 [2024-10-11 03:41:31,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:41:31,790 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 1473 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:31,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 453 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 03:41:31,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84197 states. [2024-10-11 03:41:32,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84197 to 32277. [2024-10-11 03:41:32,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32277 states, 32276 states have (on average 1.395959846325443) internal successors, (45056), 32276 states have internal predecessors, (45056), 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) [2024-10-11 03:41:32,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32277 states to 32277 states and 45056 transitions. [2024-10-11 03:41:32,515 INFO L78 Accepts]: Start accepts. Automaton has 32277 states and 45056 transitions. Word has length 73 [2024-10-11 03:41:32,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:32,515 INFO L471 AbstractCegarLoop]: Abstraction has 32277 states and 45056 transitions. [2024-10-11 03:41:32,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 6 states have internal predecessors, (73), 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) [2024-10-11 03:41:32,515 INFO L276 IsEmpty]: Start isEmpty. Operand 32277 states and 45056 transitions. [2024-10-11 03:41:32,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-11 03:41:32,522 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:32,522 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] [2024-10-11 03:41:32,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 03:41:32,523 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:32,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:32,523 INFO L85 PathProgramCache]: Analyzing trace with hash -377927116, now seen corresponding path program 1 times [2024-10-11 03:41:32,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:32,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502340859] [2024-10-11 03:41:32,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:32,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:32,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:32,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:32,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502340859] [2024-10-11 03:41:32,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502340859] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:32,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:32,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:41:32,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118293737] [2024-10-11 03:41:32,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:32,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:41:32,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:32,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:41:32,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:41:32,619 INFO L87 Difference]: Start difference. First operand 32277 states and 45056 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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) [2024-10-11 03:41:32,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:32,992 INFO L93 Difference]: Finished difference Result 76605 states and 106696 transitions. [2024-10-11 03:41:32,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:41:32,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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 73 [2024-10-11 03:41:32,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:33,047 INFO L225 Difference]: With dead ends: 76605 [2024-10-11 03:41:33,047 INFO L226 Difference]: Without dead ends: 44537 [2024-10-11 03:41:33,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:41:33,082 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 921 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:33,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 231 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:41:33,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44537 states. [2024-10-11 03:41:33,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44537 to 32277. [2024-10-11 03:41:33,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32277 states, 32276 states have (on average 1.3853947205353823) internal successors, (44715), 32276 states have internal predecessors, (44715), 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) [2024-10-11 03:41:33,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32277 states to 32277 states and 44715 transitions. [2024-10-11 03:41:33,729 INFO L78 Accepts]: Start accepts. Automaton has 32277 states and 44715 transitions. Word has length 73 [2024-10-11 03:41:33,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:33,729 INFO L471 AbstractCegarLoop]: Abstraction has 32277 states and 44715 transitions. [2024-10-11 03:41:33,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 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) [2024-10-11 03:41:33,729 INFO L276 IsEmpty]: Start isEmpty. Operand 32277 states and 44715 transitions. [2024-10-11 03:41:33,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-11 03:41:33,737 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:33,737 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] [2024-10-11 03:41:33,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 03:41:33,738 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:33,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:33,738 INFO L85 PathProgramCache]: Analyzing trace with hash -561001304, now seen corresponding path program 1 times [2024-10-11 03:41:33,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:33,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599368845] [2024-10-11 03:41:33,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:33,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:33,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:33,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:33,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599368845] [2024-10-11 03:41:33,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599368845] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:33,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:33,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:41:33,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828503832] [2024-10-11 03:41:33,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:33,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:41:33,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:33,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:41:33,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:41:33,864 INFO L87 Difference]: Start difference. First operand 32277 states and 44715 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 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) [2024-10-11 03:41:34,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:34,385 INFO L93 Difference]: Finished difference Result 82997 states and 113694 transitions. [2024-10-11 03:41:34,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:41:34,386 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 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 74 [2024-10-11 03:41:34,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:34,491 INFO L225 Difference]: With dead ends: 82997 [2024-10-11 03:41:34,491 INFO L226 Difference]: Without dead ends: 61623 [2024-10-11 03:41:34,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:41:34,830 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 1179 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:34,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 384 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:41:34,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61623 states. [2024-10-11 03:41:35,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61623 to 32327. [2024-10-11 03:41:35,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32327 states, 32326 states have (on average 1.3851079626306997) internal successors, (44775), 32326 states have internal predecessors, (44775), 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) [2024-10-11 03:41:35,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32327 states to 32327 states and 44775 transitions. [2024-10-11 03:41:35,429 INFO L78 Accepts]: Start accepts. Automaton has 32327 states and 44775 transitions. Word has length 74 [2024-10-11 03:41:35,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:35,430 INFO L471 AbstractCegarLoop]: Abstraction has 32327 states and 44775 transitions. [2024-10-11 03:41:35,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 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) [2024-10-11 03:41:35,430 INFO L276 IsEmpty]: Start isEmpty. Operand 32327 states and 44775 transitions. [2024-10-11 03:41:35,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-11 03:41:35,437 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:35,437 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] [2024-10-11 03:41:35,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 03:41:35,437 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:35,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:35,438 INFO L85 PathProgramCache]: Analyzing trace with hash 338272648, now seen corresponding path program 1 times [2024-10-11 03:41:35,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:35,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971369019] [2024-10-11 03:41:35,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:35,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:35,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:35,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:35,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971369019] [2024-10-11 03:41:35,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971369019] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:35,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:35,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:41:35,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146209848] [2024-10-11 03:41:35,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:35,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:41:35,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:35,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:41:35,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:41:35,596 INFO L87 Difference]: Start difference. First operand 32327 states and 44775 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 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) [2024-10-11 03:41:36,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:36,144 INFO L93 Difference]: Finished difference Result 76592 states and 104786 transitions. [2024-10-11 03:41:36,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:41:36,145 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 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 74 [2024-10-11 03:41:36,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:36,521 INFO L225 Difference]: With dead ends: 76592 [2024-10-11 03:41:36,521 INFO L226 Difference]: Without dead ends: 70676 [2024-10-11 03:41:36,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-11 03:41:36,535 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 1382 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:36,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 420 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:41:36,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70676 states. [2024-10-11 03:41:36,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70676 to 32615. [2024-10-11 03:41:36,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32615 states, 32614 states have (on average 1.3837309131048017) internal successors, (45129), 32614 states have internal predecessors, (45129), 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) [2024-10-11 03:41:36,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32615 states to 32615 states and 45129 transitions. [2024-10-11 03:41:36,967 INFO L78 Accepts]: Start accepts. Automaton has 32615 states and 45129 transitions. Word has length 74 [2024-10-11 03:41:36,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:36,967 INFO L471 AbstractCegarLoop]: Abstraction has 32615 states and 45129 transitions. [2024-10-11 03:41:36,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 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) [2024-10-11 03:41:36,967 INFO L276 IsEmpty]: Start isEmpty. Operand 32615 states and 45129 transitions. [2024-10-11 03:41:36,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-11 03:41:36,974 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:36,974 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] [2024-10-11 03:41:36,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 03:41:36,974 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:36,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:36,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1858152168, now seen corresponding path program 1 times [2024-10-11 03:41:36,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:36,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668256085] [2024-10-11 03:41:36,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:36,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:37,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:37,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:37,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668256085] [2024-10-11 03:41:37,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668256085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:37,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:37,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:41:37,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519695786] [2024-10-11 03:41:37,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:37,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:41:37,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:37,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:41:37,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:41:37,514 INFO L87 Difference]: Start difference. First operand 32615 states and 45129 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 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) [2024-10-11 03:41:38,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:38,185 INFO L93 Difference]: Finished difference Result 57253 states and 78859 transitions. [2024-10-11 03:41:38,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 03:41:38,186 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 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 75 [2024-10-11 03:41:38,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:38,240 INFO L225 Difference]: With dead ends: 57253 [2024-10-11 03:41:38,241 INFO L226 Difference]: Without dead ends: 47508 [2024-10-11 03:41:38,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-10-11 03:41:38,262 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 892 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:38,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 715 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:41:38,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47508 states. [2024-10-11 03:41:38,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47508 to 32615. [2024-10-11 03:41:38,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32615 states, 32614 states have (on average 1.383301649598332) internal successors, (45115), 32614 states have internal predecessors, (45115), 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) [2024-10-11 03:41:38,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32615 states to 32615 states and 45115 transitions. [2024-10-11 03:41:38,679 INFO L78 Accepts]: Start accepts. Automaton has 32615 states and 45115 transitions. Word has length 75 [2024-10-11 03:41:38,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:38,679 INFO L471 AbstractCegarLoop]: Abstraction has 32615 states and 45115 transitions. [2024-10-11 03:41:38,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 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) [2024-10-11 03:41:38,679 INFO L276 IsEmpty]: Start isEmpty. Operand 32615 states and 45115 transitions. [2024-10-11 03:41:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 03:41:38,685 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:38,685 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] [2024-10-11 03:41:38,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 03:41:38,685 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:38,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:38,686 INFO L85 PathProgramCache]: Analyzing trace with hash -147209020, now seen corresponding path program 1 times [2024-10-11 03:41:38,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:38,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145571808] [2024-10-11 03:41:38,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:38,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:39,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:39,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:39,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145571808] [2024-10-11 03:41:39,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145571808] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:39,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:39,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 03:41:39,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623638612] [2024-10-11 03:41:39,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:39,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 03:41:39,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:39,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 03:41:39,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:41:39,577 INFO L87 Difference]: Start difference. First operand 32615 states and 45115 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 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) [2024-10-11 03:41:40,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:40,546 INFO L93 Difference]: Finished difference Result 62086 states and 85891 transitions. [2024-10-11 03:41:40,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:41:40,547 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 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 76 [2024-10-11 03:41:40,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:40,645 INFO L225 Difference]: With dead ends: 62086 [2024-10-11 03:41:40,645 INFO L226 Difference]: Without dead ends: 58246 [2024-10-11 03:41:40,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-11 03:41:40,674 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 1237 mSDsluCounter, 1623 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:40,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 1850 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:41:40,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58246 states. [2024-10-11 03:41:41,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58246 to 32667. [2024-10-11 03:41:41,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32667 states, 32666 states have (on average 1.3827833221086145) internal successors, (45170), 32666 states have internal predecessors, (45170), 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) [2024-10-11 03:41:41,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32667 states to 32667 states and 45170 transitions. [2024-10-11 03:41:41,263 INFO L78 Accepts]: Start accepts. Automaton has 32667 states and 45170 transitions. Word has length 76 [2024-10-11 03:41:41,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:41,263 INFO L471 AbstractCegarLoop]: Abstraction has 32667 states and 45170 transitions. [2024-10-11 03:41:41,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 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) [2024-10-11 03:41:41,263 INFO L276 IsEmpty]: Start isEmpty. Operand 32667 states and 45170 transitions. [2024-10-11 03:41:41,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 03:41:41,280 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:41,280 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] [2024-10-11 03:41:41,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 03:41:41,280 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:41,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:41,281 INFO L85 PathProgramCache]: Analyzing trace with hash 951853852, now seen corresponding path program 1 times [2024-10-11 03:41:41,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:41,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8083322] [2024-10-11 03:41:41,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:41,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:41,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:41,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:41,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8083322] [2024-10-11 03:41:41,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8083322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:41,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:41,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:41:41,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228323288] [2024-10-11 03:41:41,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:41,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:41:41,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:41,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:41:41,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:41:41,637 INFO L87 Difference]: Start difference. First operand 32667 states and 45170 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 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) [2024-10-11 03:41:42,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:42,426 INFO L93 Difference]: Finished difference Result 81430 states and 112496 transitions. [2024-10-11 03:41:42,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:41:42,426 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 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 76 [2024-10-11 03:41:42,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:42,504 INFO L225 Difference]: With dead ends: 81430 [2024-10-11 03:41:42,504 INFO L226 Difference]: Without dead ends: 53344 [2024-10-11 03:41:42,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-11 03:41:42,532 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1059 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:42,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 749 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:41:42,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53344 states. [2024-10-11 03:41:43,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53344 to 32577. [2024-10-11 03:41:43,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32577 states, 32576 states have (on average 1.381876227897839) internal successors, (45016), 32576 states have internal predecessors, (45016), 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) [2024-10-11 03:41:43,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32577 states to 32577 states and 45016 transitions. [2024-10-11 03:41:43,229 INFO L78 Accepts]: Start accepts. Automaton has 32577 states and 45016 transitions. Word has length 76 [2024-10-11 03:41:43,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:43,229 INFO L471 AbstractCegarLoop]: Abstraction has 32577 states and 45016 transitions. [2024-10-11 03:41:43,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 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) [2024-10-11 03:41:43,230 INFO L276 IsEmpty]: Start isEmpty. Operand 32577 states and 45016 transitions. [2024-10-11 03:41:43,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 03:41:43,236 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:43,236 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] [2024-10-11 03:41:43,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 03:41:43,236 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:43,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:43,237 INFO L85 PathProgramCache]: Analyzing trace with hash -2044526082, now seen corresponding path program 1 times [2024-10-11 03:41:43,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:43,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479019005] [2024-10-11 03:41:43,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:43,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:43,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:43,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:43,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479019005] [2024-10-11 03:41:43,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479019005] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:43,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:43,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:41:43,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331258136] [2024-10-11 03:41:43,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:43,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:41:43,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:43,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:41:43,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:41:43,623 INFO L87 Difference]: Start difference. First operand 32577 states and 45016 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 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) [2024-10-11 03:41:44,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:44,563 INFO L93 Difference]: Finished difference Result 70194 states and 96922 transitions. [2024-10-11 03:41:44,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 03:41:44,564 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 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 76 [2024-10-11 03:41:44,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:44,635 INFO L225 Difference]: With dead ends: 70194 [2024-10-11 03:41:44,635 INFO L226 Difference]: Without dead ends: 50444 [2024-10-11 03:41:44,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:41:44,665 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 700 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:44,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1217 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 03:41:44,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50444 states. [2024-10-11 03:41:45,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50444 to 32520. [2024-10-11 03:41:45,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32520 states, 32519 states have (on average 1.3803314985085642) internal successors, (44887), 32519 states have internal predecessors, (44887), 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) [2024-10-11 03:41:45,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32520 states to 32520 states and 44887 transitions. [2024-10-11 03:41:45,309 INFO L78 Accepts]: Start accepts. Automaton has 32520 states and 44887 transitions. Word has length 76 [2024-10-11 03:41:45,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:45,309 INFO L471 AbstractCegarLoop]: Abstraction has 32520 states and 44887 transitions. [2024-10-11 03:41:45,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 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) [2024-10-11 03:41:45,309 INFO L276 IsEmpty]: Start isEmpty. Operand 32520 states and 44887 transitions. [2024-10-11 03:41:45,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:41:45,314 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:45,314 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] [2024-10-11 03:41:45,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 03:41:45,314 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:45,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:45,315 INFO L85 PathProgramCache]: Analyzing trace with hash -132241656, now seen corresponding path program 1 times [2024-10-11 03:41:45,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:45,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361041160] [2024-10-11 03:41:45,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:45,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:45,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:45,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:45,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361041160] [2024-10-11 03:41:45,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361041160] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:45,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:45,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 03:41:45,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599681692] [2024-10-11 03:41:45,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:45,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 03:41:45,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:45,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 03:41:45,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:41:45,900 INFO L87 Difference]: Start difference. First operand 32520 states and 44887 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 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) [2024-10-11 03:41:46,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:46,912 INFO L93 Difference]: Finished difference Result 73006 states and 101212 transitions. [2024-10-11 03:41:46,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 03:41:46,912 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 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 77 [2024-10-11 03:41:46,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:46,982 INFO L225 Difference]: With dead ends: 73006 [2024-10-11 03:41:46,982 INFO L226 Difference]: Without dead ends: 59971 [2024-10-11 03:41:46,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2024-10-11 03:41:46,999 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 946 mSDsluCounter, 1869 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:46,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 2124 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:41:47,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59971 states. [2024-10-11 03:41:47,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59971 to 32335. [2024-10-11 03:41:47,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32335 states, 32334 states have (on average 1.3809302900971114) internal successors, (44651), 32334 states have internal predecessors, (44651), 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) [2024-10-11 03:41:47,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32335 states to 32335 states and 44651 transitions. [2024-10-11 03:41:47,440 INFO L78 Accepts]: Start accepts. Automaton has 32335 states and 44651 transitions. Word has length 77 [2024-10-11 03:41:47,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:47,441 INFO L471 AbstractCegarLoop]: Abstraction has 32335 states and 44651 transitions. [2024-10-11 03:41:47,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 12 states have internal predecessors, (77), 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) [2024-10-11 03:41:47,441 INFO L276 IsEmpty]: Start isEmpty. Operand 32335 states and 44651 transitions. [2024-10-11 03:41:47,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 03:41:47,445 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:47,446 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] [2024-10-11 03:41:47,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 03:41:47,446 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:47,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:47,446 INFO L85 PathProgramCache]: Analyzing trace with hash 708555243, now seen corresponding path program 1 times [2024-10-11 03:41:47,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:47,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525359917] [2024-10-11 03:41:47,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:47,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:47,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:47,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:47,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525359917] [2024-10-11 03:41:47,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525359917] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:47,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:47,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:41:47,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817968334] [2024-10-11 03:41:47,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:47,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:41:47,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:47,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:41:47,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:41:47,502 INFO L87 Difference]: Start difference. First operand 32335 states and 44651 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-10-11 03:41:47,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:47,651 INFO L93 Difference]: Finished difference Result 67950 states and 93924 transitions. [2024-10-11 03:41:47,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:41:47,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2024-10-11 03:41:47,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:47,708 INFO L225 Difference]: With dead ends: 67950 [2024-10-11 03:41:47,708 INFO L226 Difference]: Without dead ends: 46222 [2024-10-11 03:41:47,732 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 [2024-10-11 03:41:47,733 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 173 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:47,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 403 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:41:47,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46222 states. [2024-10-11 03:41:48,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46222 to 46052. [2024-10-11 03:41:48,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46052 states, 46051 states have (on average 1.3845953399491868) internal successors, (63762), 46051 states have internal predecessors, (63762), 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) [2024-10-11 03:41:48,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46052 states to 46052 states and 63762 transitions. [2024-10-11 03:41:48,306 INFO L78 Accepts]: Start accepts. Automaton has 46052 states and 63762 transitions. Word has length 77 [2024-10-11 03:41:48,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:48,306 INFO L471 AbstractCegarLoop]: Abstraction has 46052 states and 63762 transitions. [2024-10-11 03:41:48,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-10-11 03:41:48,306 INFO L276 IsEmpty]: Start isEmpty. Operand 46052 states and 63762 transitions. [2024-10-11 03:41:48,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-11 03:41:48,312 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:48,312 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] [2024-10-11 03:41:48,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-11 03:41:48,313 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:48,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:48,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1851883679, now seen corresponding path program 1 times [2024-10-11 03:41:48,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:48,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164969671] [2024-10-11 03:41:48,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:48,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:48,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:48,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:48,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164969671] [2024-10-11 03:41:48,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164969671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:48,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:48,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 03:41:48,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355165423] [2024-10-11 03:41:48,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:48,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 03:41:48,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:48,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 03:41:48,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 03:41:48,575 INFO L87 Difference]: Start difference. First operand 46052 states and 63762 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 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) [2024-10-11 03:41:49,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:49,832 INFO L93 Difference]: Finished difference Result 132487 states and 183563 transitions. [2024-10-11 03:41:49,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 03:41:49,834 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 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 80 [2024-10-11 03:41:49,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:49,955 INFO L225 Difference]: With dead ends: 132487 [2024-10-11 03:41:49,955 INFO L226 Difference]: Without dead ends: 87350 [2024-10-11 03:41:49,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-11 03:41:49,980 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 611 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:49,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 847 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 03:41:50,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87350 states. [2024-10-11 03:41:50,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87350 to 45853. [2024-10-11 03:41:50,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45853 states, 45852 states have (on average 1.3847814708191573) internal successors, (63495), 45852 states have internal predecessors, (63495), 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) [2024-10-11 03:41:50,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45853 states to 45853 states and 63495 transitions. [2024-10-11 03:41:50,796 INFO L78 Accepts]: Start accepts. Automaton has 45853 states and 63495 transitions. Word has length 80 [2024-10-11 03:41:50,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:50,796 INFO L471 AbstractCegarLoop]: Abstraction has 45853 states and 63495 transitions. [2024-10-11 03:41:50,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 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) [2024-10-11 03:41:50,796 INFO L276 IsEmpty]: Start isEmpty. Operand 45853 states and 63495 transitions. [2024-10-11 03:41:50,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-11 03:41:50,802 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:50,802 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] [2024-10-11 03:41:50,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-11 03:41:50,802 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:50,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:50,803 INFO L85 PathProgramCache]: Analyzing trace with hash 701095561, now seen corresponding path program 1 times [2024-10-11 03:41:50,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:50,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683172335] [2024-10-11 03:41:50,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:50,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:50,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:50,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:50,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683172335] [2024-10-11 03:41:50,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683172335] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:50,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:50,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:41:50,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067814045] [2024-10-11 03:41:50,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:50,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:41:50,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:50,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:41:50,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:41:50,863 INFO L87 Difference]: Start difference. First operand 45853 states and 63495 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-10-11 03:41:51,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:51,432 INFO L93 Difference]: Finished difference Result 67139 states and 92763 transitions. [2024-10-11 03:41:51,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:41:51,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2024-10-11 03:41:51,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:51,477 INFO L225 Difference]: With dead ends: 67139 [2024-10-11 03:41:51,478 INFO L226 Difference]: Without dead ends: 40949 [2024-10-11 03:41:51,495 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 [2024-10-11 03:41:51,496 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 142 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:51,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 485 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:41:51,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40949 states. [2024-10-11 03:41:51,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40949 to 40947. [2024-10-11 03:41:51,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40947 states, 40946 states have (on average 1.3681678308015435) internal successors, (56021), 40946 states have internal predecessors, (56021), 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) [2024-10-11 03:41:51,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40947 states to 40947 states and 56021 transitions. [2024-10-11 03:41:51,876 INFO L78 Accepts]: Start accepts. Automaton has 40947 states and 56021 transitions. Word has length 81 [2024-10-11 03:41:51,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:51,876 INFO L471 AbstractCegarLoop]: Abstraction has 40947 states and 56021 transitions. [2024-10-11 03:41:51,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-10-11 03:41:51,876 INFO L276 IsEmpty]: Start isEmpty. Operand 40947 states and 56021 transitions. [2024-10-11 03:41:51,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 03:41:51,881 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:51,881 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] [2024-10-11 03:41:51,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-11 03:41:51,882 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:51,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:51,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1909096345, now seen corresponding path program 1 times [2024-10-11 03:41:51,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:51,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458096505] [2024-10-11 03:41:51,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:51,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:53,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:53,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:53,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458096505] [2024-10-11 03:41:53,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458096505] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:53,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:53,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2024-10-11 03:41:53,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137556358] [2024-10-11 03:41:53,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:53,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-11 03:41:53,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:53,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-11 03:41:53,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2024-10-11 03:41:53,669 INFO L87 Difference]: Start difference. First operand 40947 states and 56021 transitions. Second operand has 28 states, 28 states have (on average 2.9285714285714284) internal successors, (82), 27 states have internal predecessors, (82), 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) [2024-10-11 03:41:58,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:58,019 INFO L93 Difference]: Finished difference Result 72809 states and 99313 transitions. [2024-10-11 03:41:58,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-11 03:41:58,020 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.9285714285714284) internal successors, (82), 27 states have internal predecessors, (82), 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 82 [2024-10-11 03:41:58,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:58,111 INFO L225 Difference]: With dead ends: 72809 [2024-10-11 03:41:58,111 INFO L226 Difference]: Without dead ends: 70677 [2024-10-11 03:41:58,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=486, Invalid=2820, Unknown=0, NotChecked=0, Total=3306 [2024-10-11 03:41:58,139 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 2204 mSDsluCounter, 7136 mSDsCounter, 0 mSdLazyCounter, 4634 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2204 SdHoareTripleChecker+Valid, 7573 SdHoareTripleChecker+Invalid, 4639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 4634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:58,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2204 Valid, 7573 Invalid, 4639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 4634 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-11 03:41:58,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70677 states. [2024-10-11 03:41:58,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70677 to 40974. [2024-10-11 03:41:58,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40974 states, 40973 states have (on average 1.368096063261172) internal successors, (56055), 40973 states have internal predecessors, (56055), 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) [2024-10-11 03:41:58,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40974 states to 40974 states and 56055 transitions. [2024-10-11 03:41:58,792 INFO L78 Accepts]: Start accepts. Automaton has 40974 states and 56055 transitions. Word has length 82 [2024-10-11 03:41:58,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:41:58,792 INFO L471 AbstractCegarLoop]: Abstraction has 40974 states and 56055 transitions. [2024-10-11 03:41:58,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.9285714285714284) internal successors, (82), 27 states have internal predecessors, (82), 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) [2024-10-11 03:41:58,792 INFO L276 IsEmpty]: Start isEmpty. Operand 40974 states and 56055 transitions. [2024-10-11 03:41:58,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 03:41:58,797 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:41:58,797 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] [2024-10-11 03:41:58,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-11 03:41:58,798 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:41:58,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:41:58,798 INFO L85 PathProgramCache]: Analyzing trace with hash 2003662593, now seen corresponding path program 1 times [2024-10-11 03:41:58,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:41:58,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312726764] [2024-10-11 03:41:58,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:41:58,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:41:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:41:58,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:41:58,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:41:58,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312726764] [2024-10-11 03:41:58,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312726764] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:41:58,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:41:58,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:41:58,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469749546] [2024-10-11 03:41:58,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:41:58,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:41:58,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:41:58,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:41:58,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:41:58,880 INFO L87 Difference]: Start difference. First operand 40974 states and 56055 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-10-11 03:41:59,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:41:59,138 INFO L93 Difference]: Finished difference Result 81087 states and 110985 transitions. [2024-10-11 03:41:59,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:41:59,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2024-10-11 03:41:59,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:41:59,233 INFO L225 Difference]: With dead ends: 81087 [2024-10-11 03:41:59,234 INFO L226 Difference]: Without dead ends: 56645 [2024-10-11 03:41:59,270 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 [2024-10-11 03:41:59,271 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 162 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:41:59,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 337 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:41:59,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56645 states. [2024-10-11 03:41:59,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56645 to 35725. [2024-10-11 03:41:59,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35725 states, 35724 states have (on average 1.369079610345986) internal successors, (48909), 35724 states have internal predecessors, (48909), 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) [2024-10-11 03:42:00,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35725 states to 35725 states and 48909 transitions. [2024-10-11 03:42:00,265 INFO L78 Accepts]: Start accepts. Automaton has 35725 states and 48909 transitions. Word has length 82 [2024-10-11 03:42:00,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:00,265 INFO L471 AbstractCegarLoop]: Abstraction has 35725 states and 48909 transitions. [2024-10-11 03:42:00,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-10-11 03:42:00,266 INFO L276 IsEmpty]: Start isEmpty. Operand 35725 states and 48909 transitions. [2024-10-11 03:42:00,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 03:42:00,276 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:00,276 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] [2024-10-11 03:42:00,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-11 03:42:00,279 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:00,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:00,280 INFO L85 PathProgramCache]: Analyzing trace with hash -232217353, now seen corresponding path program 1 times [2024-10-11 03:42:00,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:00,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823793894] [2024-10-11 03:42:00,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:00,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:00,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:00,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:00,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823793894] [2024-10-11 03:42:00,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823793894] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:00,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:00,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:42:00,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200697147] [2024-10-11 03:42:00,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:00,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:42:00,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:00,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:42:00,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:42:00,359 INFO L87 Difference]: Start difference. First operand 35725 states and 48909 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-10-11 03:42:00,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:00,578 INFO L93 Difference]: Finished difference Result 70225 states and 96277 transitions. [2024-10-11 03:42:00,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:42:00,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2024-10-11 03:42:00,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:00,654 INFO L225 Difference]: With dead ends: 70225 [2024-10-11 03:42:00,654 INFO L226 Difference]: Without dead ends: 49389 [2024-10-11 03:42:00,687 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 [2024-10-11 03:42:00,688 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 170 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:00,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 344 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:42:00,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49389 states. [2024-10-11 03:42:01,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49389 to 34707. [2024-10-11 03:42:01,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34707 states, 34706 states have (on average 1.3670835014118596) internal successors, (47446), 34706 states have internal predecessors, (47446), 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) [2024-10-11 03:42:01,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34707 states to 34707 states and 47446 transitions. [2024-10-11 03:42:01,212 INFO L78 Accepts]: Start accepts. Automaton has 34707 states and 47446 transitions. Word has length 82 [2024-10-11 03:42:01,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:01,213 INFO L471 AbstractCegarLoop]: Abstraction has 34707 states and 47446 transitions. [2024-10-11 03:42:01,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-10-11 03:42:01,215 INFO L276 IsEmpty]: Start isEmpty. Operand 34707 states and 47446 transitions. [2024-10-11 03:42:01,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-11 03:42:01,220 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:01,220 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] [2024-10-11 03:42:01,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-11 03:42:01,221 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:01,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:01,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1745460204, now seen corresponding path program 1 times [2024-10-11 03:42:01,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:01,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53107735] [2024-10-11 03:42:01,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:01,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:02,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:02,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:02,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53107735] [2024-10-11 03:42:02,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53107735] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:02,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:02,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-11 03:42:02,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252134850] [2024-10-11 03:42:02,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:02,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 03:42:02,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:02,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 03:42:02,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-10-11 03:42:02,589 INFO L87 Difference]: Start difference. First operand 34707 states and 47446 transitions. Second operand has 17 states, 17 states have (on average 4.882352941176471) internal successors, (83), 16 states have internal predecessors, (83), 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) [2024-10-11 03:42:04,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:04,326 INFO L93 Difference]: Finished difference Result 54863 states and 74688 transitions. [2024-10-11 03:42:04,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 03:42:04,327 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.882352941176471) internal successors, (83), 16 states have internal predecessors, (83), 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 83 [2024-10-11 03:42:04,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:04,387 INFO L225 Difference]: With dead ends: 54863 [2024-10-11 03:42:04,387 INFO L226 Difference]: Without dead ends: 48740 [2024-10-11 03:42:04,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=203, Invalid=727, Unknown=0, NotChecked=0, Total=930 [2024-10-11 03:42:04,410 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 1214 mSDsluCounter, 2924 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 3195 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:04,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1214 Valid, 3195 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 03:42:04,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48740 states. [2024-10-11 03:42:04,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48740 to 34698. [2024-10-11 03:42:04,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34698 states, 34697 states have (on average 1.3669769720725136) internal successors, (47430), 34697 states have internal predecessors, (47430), 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) [2024-10-11 03:42:05,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34698 states to 34698 states and 47430 transitions. [2024-10-11 03:42:05,045 INFO L78 Accepts]: Start accepts. Automaton has 34698 states and 47430 transitions. Word has length 83 [2024-10-11 03:42:05,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:05,045 INFO L471 AbstractCegarLoop]: Abstraction has 34698 states and 47430 transitions. [2024-10-11 03:42:05,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.882352941176471) internal successors, (83), 16 states have internal predecessors, (83), 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) [2024-10-11 03:42:05,045 INFO L276 IsEmpty]: Start isEmpty. Operand 34698 states and 47430 transitions. [2024-10-11 03:42:05,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-11 03:42:05,049 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:05,049 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] [2024-10-11 03:42:05,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-11 03:42:05,050 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:05,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:05,050 INFO L85 PathProgramCache]: Analyzing trace with hash 880488968, now seen corresponding path program 1 times [2024-10-11 03:42:05,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:05,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989171601] [2024-10-11 03:42:05,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:05,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:05,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:05,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:05,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989171601] [2024-10-11 03:42:05,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989171601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:05,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:05,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-11 03:42:05,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832241762] [2024-10-11 03:42:05,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:05,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 03:42:05,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:05,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 03:42:05,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2024-10-11 03:42:05,995 INFO L87 Difference]: Start difference. First operand 34698 states and 47430 transitions. Second operand has 19 states, 19 states have (on average 4.368421052631579) internal successors, (83), 18 states have internal predecessors, (83), 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) [2024-10-11 03:42:08,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:08,005 INFO L93 Difference]: Finished difference Result 74530 states and 101606 transitions. [2024-10-11 03:42:08,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-11 03:42:08,006 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.368421052631579) internal successors, (83), 18 states have internal predecessors, (83), 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 83 [2024-10-11 03:42:08,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:08,093 INFO L225 Difference]: With dead ends: 74530 [2024-10-11 03:42:08,093 INFO L226 Difference]: Without dead ends: 69690 [2024-10-11 03:42:08,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=331, Invalid=1391, Unknown=0, NotChecked=0, Total=1722 [2024-10-11 03:42:08,122 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 1753 mSDsluCounter, 5077 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 5466 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:08,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 5466 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 03:42:08,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69690 states. [2024-10-11 03:42:08,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69690 to 34712. [2024-10-11 03:42:08,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34712 states, 34711 states have (on average 1.3669153870530955) internal successors, (47447), 34711 states have internal predecessors, (47447), 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) [2024-10-11 03:42:08,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34712 states to 34712 states and 47447 transitions. [2024-10-11 03:42:08,658 INFO L78 Accepts]: Start accepts. Automaton has 34712 states and 47447 transitions. Word has length 83 [2024-10-11 03:42:08,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:08,658 INFO L471 AbstractCegarLoop]: Abstraction has 34712 states and 47447 transitions. [2024-10-11 03:42:08,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.368421052631579) internal successors, (83), 18 states have internal predecessors, (83), 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) [2024-10-11 03:42:08,658 INFO L276 IsEmpty]: Start isEmpty. Operand 34712 states and 47447 transitions. [2024-10-11 03:42:08,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-11 03:42:08,666 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:08,666 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:42:08,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-11 03:42:08,667 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:08,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:08,667 INFO L85 PathProgramCache]: Analyzing trace with hash 172373323, now seen corresponding path program 1 times [2024-10-11 03:42:08,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:08,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410246707] [2024-10-11 03:42:08,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:08,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:08,845 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:08,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:08,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410246707] [2024-10-11 03:42:08,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410246707] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:08,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:08,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:42:08,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191749323] [2024-10-11 03:42:08,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:08,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:42:08,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:08,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:42:08,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:42:08,849 INFO L87 Difference]: Start difference. First operand 34712 states and 47447 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2024-10-11 03:42:09,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:09,052 INFO L93 Difference]: Finished difference Result 74349 states and 102234 transitions. [2024-10-11 03:42:09,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:42:09,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2024-10-11 03:42:09,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:09,140 INFO L225 Difference]: With dead ends: 74349 [2024-10-11 03:42:09,141 INFO L226 Difference]: Without dead ends: 53966 [2024-10-11 03:42:09,176 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 [2024-10-11 03:42:09,176 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 117 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:09,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 480 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:42:09,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53966 states. [2024-10-11 03:42:09,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53966 to 52156. [2024-10-11 03:42:09,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52156 states, 52155 states have (on average 1.3633592177164222) internal successors, (71106), 52155 states have internal predecessors, (71106), 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) [2024-10-11 03:42:09,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52156 states to 52156 states and 71106 transitions. [2024-10-11 03:42:09,713 INFO L78 Accepts]: Start accepts. Automaton has 52156 states and 71106 transitions. Word has length 90 [2024-10-11 03:42:09,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:09,714 INFO L471 AbstractCegarLoop]: Abstraction has 52156 states and 71106 transitions. [2024-10-11 03:42:09,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2024-10-11 03:42:09,714 INFO L276 IsEmpty]: Start isEmpty. Operand 52156 states and 71106 transitions. [2024-10-11 03:42:09,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-11 03:42:09,722 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:09,722 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:42:09,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-11 03:42:09,722 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:09,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:09,723 INFO L85 PathProgramCache]: Analyzing trace with hash 337078693, now seen corresponding path program 1 times [2024-10-11 03:42:09,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:09,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447411303] [2024-10-11 03:42:09,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:09,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:09,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:09,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:09,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447411303] [2024-10-11 03:42:09,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447411303] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:09,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:09,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:42:09,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851158534] [2024-10-11 03:42:09,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:09,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:42:09,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:09,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:42:09,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:42:09,839 INFO L87 Difference]: Start difference. First operand 52156 states and 71106 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 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) [2024-10-11 03:42:10,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:10,432 INFO L93 Difference]: Finished difference Result 107415 states and 146952 transitions. [2024-10-11 03:42:10,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:42:10,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 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 96 [2024-10-11 03:42:10,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:10,536 INFO L225 Difference]: With dead ends: 107415 [2024-10-11 03:42:10,536 INFO L226 Difference]: Without dead ends: 86099 [2024-10-11 03:42:10,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:42:10,571 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 1552 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1552 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:10,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1552 Valid, 433 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 03:42:10,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86099 states. [2024-10-11 03:42:11,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86099 to 52910. [2024-10-11 03:42:11,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52910 states, 52909 states have (on average 1.3623202101721825) internal successors, (72079), 52909 states have internal predecessors, (72079), 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) [2024-10-11 03:42:11,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52910 states to 52910 states and 72079 transitions. [2024-10-11 03:42:11,667 INFO L78 Accepts]: Start accepts. Automaton has 52910 states and 72079 transitions. Word has length 96 [2024-10-11 03:42:11,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:11,667 INFO L471 AbstractCegarLoop]: Abstraction has 52910 states and 72079 transitions. [2024-10-11 03:42:11,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 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) [2024-10-11 03:42:11,668 INFO L276 IsEmpty]: Start isEmpty. Operand 52910 states and 72079 transitions. [2024-10-11 03:42:11,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-11 03:42:11,674 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:11,674 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:42:11,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-11 03:42:11,674 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:11,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:11,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1920976521, now seen corresponding path program 1 times [2024-10-11 03:42:11,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:11,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137103883] [2024-10-11 03:42:11,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:11,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:11,729 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:11,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:11,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137103883] [2024-10-11 03:42:11,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137103883] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:11,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:11,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:42:11,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751753047] [2024-10-11 03:42:11,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:11,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:42:11,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:11,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:42:11,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:42:11,731 INFO L87 Difference]: Start difference. First operand 52910 states and 72079 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-10-11 03:42:11,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:11,876 INFO L93 Difference]: Finished difference Result 67463 states and 91477 transitions. [2024-10-11 03:42:11,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:42:11,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2024-10-11 03:42:11,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:11,922 INFO L225 Difference]: With dead ends: 67463 [2024-10-11 03:42:11,922 INFO L226 Difference]: Without dead ends: 43281 [2024-10-11 03:42:11,947 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 [2024-10-11 03:42:11,947 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 137 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:11,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 559 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:42:11,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43281 states. [2024-10-11 03:42:12,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43281 to 43279. [2024-10-11 03:42:12,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43279 states, 43278 states have (on average 1.3427838624705393) internal successors, (58113), 43278 states have internal predecessors, (58113), 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) [2024-10-11 03:42:12,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43279 states to 43279 states and 58113 transitions. [2024-10-11 03:42:12,379 INFO L78 Accepts]: Start accepts. Automaton has 43279 states and 58113 transitions. Word has length 97 [2024-10-11 03:42:12,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:12,379 INFO L471 AbstractCegarLoop]: Abstraction has 43279 states and 58113 transitions. [2024-10-11 03:42:12,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-10-11 03:42:12,379 INFO L276 IsEmpty]: Start isEmpty. Operand 43279 states and 58113 transitions. [2024-10-11 03:42:12,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-11 03:42:12,385 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:12,386 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:42:12,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-11 03:42:12,386 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:12,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:12,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1310974143, now seen corresponding path program 1 times [2024-10-11 03:42:12,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:12,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181957908] [2024-10-11 03:42:12,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:12,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:12,530 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:12,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:12,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181957908] [2024-10-11 03:42:12,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181957908] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:12,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:12,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:42:12,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477802552] [2024-10-11 03:42:12,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:12,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:42:12,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:12,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:42:12,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:42:12,532 INFO L87 Difference]: Start difference. First operand 43279 states and 58113 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 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) [2024-10-11 03:42:13,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:13,367 INFO L93 Difference]: Finished difference Result 139883 states and 189628 transitions. [2024-10-11 03:42:13,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:42:13,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 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 98 [2024-10-11 03:42:13,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:13,514 INFO L225 Difference]: With dead ends: 139883 [2024-10-11 03:42:13,514 INFO L226 Difference]: Without dead ends: 107395 [2024-10-11 03:42:13,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:42:13,560 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 1388 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:13,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 427 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 03:42:13,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107395 states. [2024-10-11 03:42:14,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107395 to 60791. [2024-10-11 03:42:14,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60791 states, 60790 states have (on average 1.3607994735976312) internal successors, (82723), 60790 states have internal predecessors, (82723), 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) [2024-10-11 03:42:14,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60791 states to 60791 states and 82723 transitions. [2024-10-11 03:42:14,705 INFO L78 Accepts]: Start accepts. Automaton has 60791 states and 82723 transitions. Word has length 98 [2024-10-11 03:42:14,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:14,705 INFO L471 AbstractCegarLoop]: Abstraction has 60791 states and 82723 transitions. [2024-10-11 03:42:14,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 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) [2024-10-11 03:42:14,705 INFO L276 IsEmpty]: Start isEmpty. Operand 60791 states and 82723 transitions. [2024-10-11 03:42:14,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-11 03:42:14,712 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:14,713 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:42:14,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-11 03:42:14,713 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:14,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:14,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1301657163, now seen corresponding path program 1 times [2024-10-11 03:42:14,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:14,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643783408] [2024-10-11 03:42:14,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:14,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:14,866 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:42:14,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:14,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643783408] [2024-10-11 03:42:14,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643783408] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:14,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:14,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 03:42:14,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639993334] [2024-10-11 03:42:14,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:14,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 03:42:14,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:14,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 03:42:14,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:42:14,869 INFO L87 Difference]: Start difference. First operand 60791 states and 82723 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 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) [2024-10-11 03:42:15,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:15,667 INFO L93 Difference]: Finished difference Result 165194 states and 225065 transitions. [2024-10-11 03:42:15,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:42:15,667 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 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 100 [2024-10-11 03:42:15,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:15,843 INFO L225 Difference]: With dead ends: 165194 [2024-10-11 03:42:15,843 INFO L226 Difference]: Without dead ends: 136189 [2024-10-11 03:42:15,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-11 03:42:15,897 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 1273 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:15,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 407 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:42:15,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136189 states. [2024-10-11 03:42:17,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136189 to 92003. [2024-10-11 03:42:17,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92003 states, 92002 states have (on average 1.3627638529597184) internal successors, (125377), 92002 states have internal predecessors, (125377), 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) [2024-10-11 03:42:17,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92003 states to 92003 states and 125377 transitions. [2024-10-11 03:42:17,972 INFO L78 Accepts]: Start accepts. Automaton has 92003 states and 125377 transitions. Word has length 100 [2024-10-11 03:42:17,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:17,973 INFO L471 AbstractCegarLoop]: Abstraction has 92003 states and 125377 transitions. [2024-10-11 03:42:17,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 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) [2024-10-11 03:42:17,973 INFO L276 IsEmpty]: Start isEmpty. Operand 92003 states and 125377 transitions. [2024-10-11 03:42:17,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-11 03:42:17,988 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:17,988 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-10-11 03:42:17,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-11 03:42:17,989 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:17,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:17,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1271245958, now seen corresponding path program 1 times [2024-10-11 03:42:17,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:17,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132394653] [2024-10-11 03:42:17,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:17,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:18,146 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 03:42:18,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:18,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132394653] [2024-10-11 03:42:18,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132394653] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:18,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:18,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:42:18,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658610098] [2024-10-11 03:42:18,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:18,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:42:18,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:18,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:42:18,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:42:18,149 INFO L87 Difference]: Start difference. First operand 92003 states and 125377 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-10-11 03:42:18,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:18,643 INFO L93 Difference]: Finished difference Result 220234 states and 298415 transitions. [2024-10-11 03:42:18,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:42:18,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 112 [2024-10-11 03:42:18,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:18,828 INFO L225 Difference]: With dead ends: 220234 [2024-10-11 03:42:18,828 INFO L226 Difference]: Without dead ends: 129370 [2024-10-11 03:42:18,911 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 [2024-10-11 03:42:18,912 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 107 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:18,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 464 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:42:19,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129370 states. [2024-10-11 03:42:20,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129370 to 124314. [2024-10-11 03:42:20,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124314 states, 124313 states have (on average 1.3428603605415363) internal successors, (166935), 124313 states have internal predecessors, (166935), 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) [2024-10-11 03:42:21,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124314 states to 124314 states and 166935 transitions. [2024-10-11 03:42:21,319 INFO L78 Accepts]: Start accepts. Automaton has 124314 states and 166935 transitions. Word has length 112 [2024-10-11 03:42:21,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:42:21,319 INFO L471 AbstractCegarLoop]: Abstraction has 124314 states and 166935 transitions. [2024-10-11 03:42:21,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-10-11 03:42:21,319 INFO L276 IsEmpty]: Start isEmpty. Operand 124314 states and 166935 transitions. [2024-10-11 03:42:21,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-11 03:42:21,332 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:42:21,332 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-10-11 03:42:21,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-11 03:42:21,333 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:42:21,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:42:21,334 INFO L85 PathProgramCache]: Analyzing trace with hash -86384140, now seen corresponding path program 1 times [2024-10-11 03:42:21,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:42:21,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490494707] [2024-10-11 03:42:21,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:42:21,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:42:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:42:21,471 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 03:42:21,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:42:21,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490494707] [2024-10-11 03:42:21,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490494707] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:42:21,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:42:21,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:42:21,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678858511] [2024-10-11 03:42:21,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:42:21,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:42:21,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:42:21,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:42:21,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:42:21,473 INFO L87 Difference]: Start difference. First operand 124314 states and 166935 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2024-10-11 03:42:22,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:42:22,273 INFO L93 Difference]: Finished difference Result 283788 states and 378391 transitions. [2024-10-11 03:42:22,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:42:22,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 113 [2024-10-11 03:42:22,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:42:22,528 INFO L225 Difference]: With dead ends: 283788 [2024-10-11 03:42:22,529 INFO L226 Difference]: Without dead ends: 160517 [2024-10-11 03:42:22,637 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 [2024-10-11 03:42:22,637 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 96 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:42:22,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 458 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:42:22,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160517 states.