./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.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/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.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 60893087aa786664ad64540c06a3cfd94f74ea911d6a1d2cfa0eca217367fc44 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 04:54:12,575 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 04:54:12,627 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 04:54:12,630 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 04:54:12,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 04:54:12,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 04:54:12,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 04:54:12,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 04:54:12,654 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 04:54:12,655 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 04:54:12,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 04:54:12,655 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 04:54:12,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 04:54:12,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 04:54:12,656 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 04:54:12,656 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 04:54:12,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 04:54:12,657 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 04:54:12,657 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 04:54:12,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 04:54:12,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 04:54:12,661 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 04:54:12,661 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 04:54:12,661 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 04:54:12,661 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 04:54:12,662 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 04:54:12,662 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 04:54:12,662 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 04:54:12,662 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 04:54:12,663 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 04:54:12,663 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 04:54:12,663 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 04:54:12,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:54:12,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 04:54:12,664 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 04:54:12,664 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 04:54:12,665 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 04:54:12,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 04:54:12,665 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 04:54:12,665 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 04:54:12,665 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 04:54:12,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 04:54:12,666 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60893087aa786664ad64540c06a3cfd94f74ea911d6a1d2cfa0eca217367fc44 [2024-10-11 04:54:12,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 04:54:12,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 04:54:12,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 04:54:12,872 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 04:54:12,872 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 04:54:12,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.c [2024-10-11 04:54:14,128 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 04:54:14,476 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 04:54:14,481 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.c [2024-10-11 04:54:14,512 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c5f08f53a/9e17467bf72742a6b06ac2aee52bd856/FLAG201101384 [2024-10-11 04:54:14,531 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c5f08f53a/9e17467bf72742a6b06ac2aee52bd856 [2024-10-11 04:54:14,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 04:54:14,535 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 04:54:14,537 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 04:54:14,537 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 04:54:14,546 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 04:54:14,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:54:14" (1/1) ... [2024-10-11 04:54:14,548 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f69d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:54:14, skipping insertion in model container [2024-10-11 04:54:14,548 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:54:14" (1/1) ... [2024-10-11 04:54:14,663 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 04:54:14,975 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/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.c[20463,20476] [2024-10-11 04:54:15,019 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/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.c[26018,26031] [2024-10-11 04:54:15,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:54:15,479 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 04:54:15,514 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/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.c[20463,20476] [2024-10-11 04:54:15,520 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/combinations/pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.c[26018,26031] [2024-10-11 04:54:15,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:54:15,851 INFO L204 MainTranslator]: Completed translation [2024-10-11 04:54:15,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:54:15 WrapperNode [2024-10-11 04:54:15,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 04:54:15,852 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 04:54:15,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 04:54:15,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 04:54:15,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:54:15" (1/1) ... [2024-10-11 04:54:15,897 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:54:15" (1/1) ... [2024-10-11 04:54:16,160 INFO L138 Inliner]: procedures = 38, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5222 [2024-10-11 04:54:16,161 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 04:54:16,161 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 04:54:16,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 04:54:16,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 04:54:16,244 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:54:15" (1/1) ... [2024-10-11 04:54:16,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:54:15" (1/1) ... [2024-10-11 04:54:16,294 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:54:15" (1/1) ... [2024-10-11 04:54:16,434 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 04:54:16,435 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:54:15" (1/1) ... [2024-10-11 04:54:16,435 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:54:15" (1/1) ... [2024-10-11 04:54:16,597 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:54:15" (1/1) ... [2024-10-11 04:54:16,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:54:15" (1/1) ... [2024-10-11 04:54:16,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:54:15" (1/1) ... [2024-10-11 04:54:16,658 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:54:15" (1/1) ... [2024-10-11 04:54:16,714 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 04:54:16,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 04:54:16,716 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 04:54:16,716 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 04:54:16,717 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:54:15" (1/1) ... [2024-10-11 04:54:16,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:54:16,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:54:16,746 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 04:54:16,749 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 04:54:16,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 04:54:16,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 04:54:16,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 04:54:16,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 04:54:16,901 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 04:54:16,903 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 04:54:20,349 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-10-11 04:54:20,350 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 04:54:20,394 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 04:54:20,395 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 04:54:20,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:54:20 BoogieIcfgContainer [2024-10-11 04:54:20,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 04:54:20,397 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 04:54:20,397 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 04:54:20,399 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 04:54:20,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:54:14" (1/3) ... [2024-10-11 04:54:20,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394a40a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:54:20, skipping insertion in model container [2024-10-11 04:54:20,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:54:15" (2/3) ... [2024-10-11 04:54:20,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394a40a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:54:20, skipping insertion in model container [2024-10-11 04:54:20,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:54:20" (3/3) ... [2024-10-11 04:54:20,401 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.BOUNDED-14.pals+Problem12_label01.c [2024-10-11 04:54:20,414 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 04:54:20,415 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 04:54:20,482 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 04:54:20,488 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;@b1b5235, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 04:54:20,488 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 04:54:20,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 865 states, 862 states have (on average 1.9721577726218098) internal successors, (1700), 864 states have internal predecessors, (1700), 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 04:54:20,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-11 04:54:20,506 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:20,507 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] [2024-10-11 04:54:20,507 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:20,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:20,513 INFO L85 PathProgramCache]: Analyzing trace with hash 121576816, now seen corresponding path program 1 times [2024-10-11 04:54:20,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:20,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174101514] [2024-10-11 04:54:20,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:20,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:20,769 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 04:54:20,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:20,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174101514] [2024-10-11 04:54:20,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174101514] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:20,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:20,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 04:54:20,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624601260] [2024-10-11 04:54:20,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:20,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 04:54:20,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:20,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 04:54:20,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 04:54:20,802 INFO L87 Difference]: Start difference. First operand has 865 states, 862 states have (on average 1.9721577726218098) internal successors, (1700), 864 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 04:54:20,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:20,880 INFO L93 Difference]: Finished difference Result 1676 states and 3294 transitions. [2024-10-11 04:54:20,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 04:54:20,888 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2024-10-11 04:54:20,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:20,904 INFO L225 Difference]: With dead ends: 1676 [2024-10-11 04:54:20,906 INFO L226 Difference]: Without dead ends: 861 [2024-10-11 04:54:20,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 04:54:20,917 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:20,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1629 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:54:20,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2024-10-11 04:54:20,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861. [2024-10-11 04:54:20,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 859 states have (on average 1.8963911525029105) internal successors, (1629), 860 states have internal predecessors, (1629), 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 04:54:20,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1629 transitions. [2024-10-11 04:54:20,977 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1629 transitions. Word has length 25 [2024-10-11 04:54:20,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:20,977 INFO L471 AbstractCegarLoop]: Abstraction has 861 states and 1629 transitions. [2024-10-11 04:54:20,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 04:54:20,978 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1629 transitions. [2024-10-11 04:54:20,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-11 04:54:20,979 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:20,979 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] [2024-10-11 04:54:20,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 04:54:20,980 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:20,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:20,980 INFO L85 PathProgramCache]: Analyzing trace with hash 544278642, now seen corresponding path program 1 times [2024-10-11 04:54:20,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:20,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319667246] [2024-10-11 04:54:20,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:20,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:21,130 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 04:54:21,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:21,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319667246] [2024-10-11 04:54:21,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319667246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:21,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:21,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 04:54:21,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488040621] [2024-10-11 04:54:21,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:21,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 04:54:21,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:21,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 04:54:21,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:54:21,132 INFO L87 Difference]: Start difference. First operand 861 states and 1629 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 04:54:21,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:21,219 INFO L93 Difference]: Finished difference Result 917 states and 1718 transitions. [2024-10-11 04:54:21,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 04:54:21,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2024-10-11 04:54:21,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:21,223 INFO L225 Difference]: With dead ends: 917 [2024-10-11 04:54:21,223 INFO L226 Difference]: Without dead ends: 861 [2024-10-11 04:54:21,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:54:21,224 INFO L432 NwaCegarLoop]: 1626 mSDtfsCounter, 0 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4824 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:21,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4824 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:54:21,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2024-10-11 04:54:21,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861. [2024-10-11 04:54:21,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 859 states have (on average 1.838183934807916) internal successors, (1579), 860 states have internal predecessors, (1579), 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 04:54:21,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1579 transitions. [2024-10-11 04:54:21,244 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1579 transitions. Word has length 25 [2024-10-11 04:54:21,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:21,244 INFO L471 AbstractCegarLoop]: Abstraction has 861 states and 1579 transitions. [2024-10-11 04:54:21,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 04:54:21,244 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1579 transitions. [2024-10-11 04:54:21,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-11 04:54:21,245 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:21,245 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] [2024-10-11 04:54:21,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 04:54:21,246 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:21,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:21,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1012000246, now seen corresponding path program 1 times [2024-10-11 04:54:21,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:21,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495261288] [2024-10-11 04:54:21,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:21,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:21,337 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 04:54:21,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:21,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495261288] [2024-10-11 04:54:21,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495261288] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:21,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:21,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 04:54:21,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426134734] [2024-10-11 04:54:21,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:21,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:54:21,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:21,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:54:21,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:54:21,339 INFO L87 Difference]: Start difference. First operand 861 states and 1579 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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 04:54:24,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:24,299 INFO L93 Difference]: Finished difference Result 2365 states and 4452 transitions. [2024-10-11 04:54:24,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:54:24,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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 47 [2024-10-11 04:54:24,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:24,304 INFO L225 Difference]: With dead ends: 2365 [2024-10-11 04:54:24,305 INFO L226 Difference]: Without dead ends: 1612 [2024-10-11 04:54:24,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:54:24,311 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 908 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2280 mSolverCounterSat, 998 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 3278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 998 IncrementalHoareTripleChecker+Valid, 2280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:24,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 214 Invalid, 3278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [998 Valid, 2280 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-11 04:54:24,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2024-10-11 04:54:24,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1612. [2024-10-11 04:54:24,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1610 states have (on average 1.8347826086956522) internal successors, (2954), 1611 states have internal predecessors, (2954), 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 04:54:24,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2954 transitions. [2024-10-11 04:54:24,342 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2954 transitions. Word has length 47 [2024-10-11 04:54:24,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:24,343 INFO L471 AbstractCegarLoop]: Abstraction has 1612 states and 2954 transitions. [2024-10-11 04:54:24,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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 04:54:24,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2954 transitions. [2024-10-11 04:54:24,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-11 04:54:24,345 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:24,349 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 04:54:24,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 04:54:24,350 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:24,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:24,351 INFO L85 PathProgramCache]: Analyzing trace with hash -478493049, now seen corresponding path program 1 times [2024-10-11 04:54:24,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:24,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160569766] [2024-10-11 04:54:24,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:24,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:24,593 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 04:54:24,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:24,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160569766] [2024-10-11 04:54:24,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160569766] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:24,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:24,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 04:54:24,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460458533] [2024-10-11 04:54:24,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:24,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 04:54:24,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:24,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 04:54:24,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 04:54:24,595 INFO L87 Difference]: Start difference. First operand 1612 states and 2954 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 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 04:54:24,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:24,971 INFO L93 Difference]: Finished difference Result 2354 states and 4158 transitions. [2024-10-11 04:54:24,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 04:54:24,971 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 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 04:54:24,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:24,979 INFO L225 Difference]: With dead ends: 2354 [2024-10-11 04:54:24,979 INFO L226 Difference]: Without dead ends: 2301 [2024-10-11 04:54:24,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-10-11 04:54:24,981 INFO L432 NwaCegarLoop]: 1572 mSDtfsCounter, 11475 mSDsluCounter, 3464 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11475 SdHoareTripleChecker+Valid, 5036 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:24,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11475 Valid, 5036 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 04:54:24,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2301 states. [2024-10-11 04:54:25,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2301 to 1663. [2024-10-11 04:54:25,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1663 states, 1661 states have (on average 1.8284166164960867) internal successors, (3037), 1662 states have internal predecessors, (3037), 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 04:54:25,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 3037 transitions. [2024-10-11 04:54:25,012 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 3037 transitions. Word has length 74 [2024-10-11 04:54:25,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:25,013 INFO L471 AbstractCegarLoop]: Abstraction has 1663 states and 3037 transitions. [2024-10-11 04:54:25,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 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 04:54:25,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 3037 transitions. [2024-10-11 04:54:25,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 04:54:25,014 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:25,015 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 04:54:25,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 04:54:25,015 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:25,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:25,015 INFO L85 PathProgramCache]: Analyzing trace with hash -394845033, now seen corresponding path program 1 times [2024-10-11 04:54:25,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:25,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414257681] [2024-10-11 04:54:25,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:25,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:25,096 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 04:54:25,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:25,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414257681] [2024-10-11 04:54:25,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414257681] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:25,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:25,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:54:25,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415940279] [2024-10-11 04:54:25,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:25,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:54:25,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:25,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:54:25,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:54:25,100 INFO L87 Difference]: Start difference. First operand 1663 states and 3037 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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 04:54:25,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:25,134 INFO L93 Difference]: Finished difference Result 1860 states and 3356 transitions. [2024-10-11 04:54:25,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:54:25,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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 04:54:25,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:25,140 INFO L225 Difference]: With dead ends: 1860 [2024-10-11 04:54:25,140 INFO L226 Difference]: Without dead ends: 1756 [2024-10-11 04:54:25,142 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 04:54:25,144 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 1496 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:25,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1654 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:54:25,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2024-10-11 04:54:25,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1754. [2024-10-11 04:54:25,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1752 states have (on average 1.8167808219178083) internal successors, (3183), 1753 states have internal predecessors, (3183), 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 04:54:25,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 3183 transitions. [2024-10-11 04:54:25,174 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 3183 transitions. Word has length 76 [2024-10-11 04:54:25,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:25,176 INFO L471 AbstractCegarLoop]: Abstraction has 1754 states and 3183 transitions. [2024-10-11 04:54:25,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 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 04:54:25,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 3183 transitions. [2024-10-11 04:54:25,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 04:54:25,178 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:25,178 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 04:54:25,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 04:54:25,179 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:25,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:25,180 INFO L85 PathProgramCache]: Analyzing trace with hash -392700081, now seen corresponding path program 1 times [2024-10-11 04:54:25,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:25,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392781] [2024-10-11 04:54:25,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:25,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:25,574 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 04:54:25,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:25,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392781] [2024-10-11 04:54:25,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:25,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:25,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 04:54:25,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909281352] [2024-10-11 04:54:25,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:25,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 04:54:25,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:25,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 04:54:25,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-11 04:54:25,576 INFO L87 Difference]: Start difference. First operand 1754 states and 3183 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 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 04:54:25,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:25,835 INFO L93 Difference]: Finished difference Result 1951 states and 3499 transitions. [2024-10-11 04:54:25,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 04:54:25,842 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 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 04:54:25,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:25,847 INFO L225 Difference]: With dead ends: 1951 [2024-10-11 04:54:25,848 INFO L226 Difference]: Without dead ends: 1756 [2024-10-11 04:54:25,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-10-11 04:54:25,849 INFO L432 NwaCegarLoop]: 1567 mSDtfsCounter, 4551 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4551 SdHoareTripleChecker+Valid, 2059 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:25,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4551 Valid, 2059 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:54:25,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2024-10-11 04:54:25,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1754. [2024-10-11 04:54:25,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1752 states have (on average 1.8156392694063928) internal successors, (3181), 1753 states have internal predecessors, (3181), 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 04:54:25,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 3181 transitions. [2024-10-11 04:54:25,887 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 3181 transitions. Word has length 76 [2024-10-11 04:54:25,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:25,887 INFO L471 AbstractCegarLoop]: Abstraction has 1754 states and 3181 transitions. [2024-10-11 04:54:25,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 9 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 04:54:25,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 3181 transitions. [2024-10-11 04:54:25,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-11 04:54:25,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:25,889 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 04:54:25,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 04:54:25,890 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:25,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:25,890 INFO L85 PathProgramCache]: Analyzing trace with hash 582787194, now seen corresponding path program 1 times [2024-10-11 04:54:25,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:25,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120909317] [2024-10-11 04:54:25,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:25,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:26,095 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 04:54:26,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:26,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120909317] [2024-10-11 04:54:26,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120909317] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:26,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:26,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 04:54:26,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097821921] [2024-10-11 04:54:26,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:26,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 04:54:26,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:26,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 04:54:26,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:54:26,099 INFO L87 Difference]: Start difference. First operand 1754 states and 3181 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 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 04:54:26,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:26,133 INFO L93 Difference]: Finished difference Result 1760 states and 3188 transitions. [2024-10-11 04:54:26,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 04:54:26,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 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 04:54:26,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:26,139 INFO L225 Difference]: With dead ends: 1760 [2024-10-11 04:54:26,139 INFO L226 Difference]: Without dead ends: 1758 [2024-10-11 04:54:26,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:54:26,141 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 0 mSDsluCounter, 3142 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4717 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:26,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4717 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:54:26,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2024-10-11 04:54:26,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1758. [2024-10-11 04:54:26,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1756 states have (on average 1.8132118451025057) internal successors, (3184), 1757 states have internal predecessors, (3184), 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 04:54:26,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 3184 transitions. [2024-10-11 04:54:26,171 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 3184 transitions. Word has length 77 [2024-10-11 04:54:26,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:26,171 INFO L471 AbstractCegarLoop]: Abstraction has 1758 states and 3184 transitions. [2024-10-11 04:54:26,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 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 04:54:26,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 3184 transitions. [2024-10-11 04:54:26,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 04:54:26,172 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:26,172 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] [2024-10-11 04:54:26,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 04:54:26,173 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:26,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:26,173 INFO L85 PathProgramCache]: Analyzing trace with hash -531282225, now seen corresponding path program 1 times [2024-10-11 04:54:26,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:26,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751461182] [2024-10-11 04:54:26,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:26,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:26,224 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 04:54:26,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:26,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751461182] [2024-10-11 04:54:26,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751461182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:26,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:26,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:54:26,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239155176] [2024-10-11 04:54:26,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:26,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:54:26,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:26,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:54:26,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:54:26,225 INFO L87 Difference]: Start difference. First operand 1758 states and 3184 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 04:54:26,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:26,256 INFO L93 Difference]: Finished difference Result 1968 states and 3517 transitions. [2024-10-11 04:54:26,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:54:26,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2024-10-11 04:54:26,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:26,262 INFO L225 Difference]: With dead ends: 1968 [2024-10-11 04:54:26,263 INFO L226 Difference]: Without dead ends: 1860 [2024-10-11 04:54:26,263 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 04:54:26,264 INFO L432 NwaCegarLoop]: 1646 mSDtfsCounter, 1514 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:26,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1732 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:54:26,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2024-10-11 04:54:26,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1858. [2024-10-11 04:54:26,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1858 states, 1856 states have (on average 1.8001077586206897) internal successors, (3341), 1857 states have internal predecessors, (3341), 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 04:54:26,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 3341 transitions. [2024-10-11 04:54:26,293 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 3341 transitions. Word has length 78 [2024-10-11 04:54:26,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:26,294 INFO L471 AbstractCegarLoop]: Abstraction has 1858 states and 3341 transitions. [2024-10-11 04:54:26,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 04:54:26,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 3341 transitions. [2024-10-11 04:54:26,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 04:54:26,294 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:26,295 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] [2024-10-11 04:54:26,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 04:54:26,295 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:26,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:26,295 INFO L85 PathProgramCache]: Analyzing trace with hash 224101839, now seen corresponding path program 1 times [2024-10-11 04:54:26,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:26,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393435241] [2024-10-11 04:54:26,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:26,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:26,340 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 04:54:26,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:26,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393435241] [2024-10-11 04:54:26,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393435241] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:26,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:26,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:54:26,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207366678] [2024-10-11 04:54:26,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:26,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:54:26,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:26,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:54:26,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:54:26,343 INFO L87 Difference]: Start difference. First operand 1858 states and 3341 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 04:54:26,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:26,373 INFO L93 Difference]: Finished difference Result 2428 states and 4241 transitions. [2024-10-11 04:54:26,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:54:26,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2024-10-11 04:54:26,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:26,379 INFO L225 Difference]: With dead ends: 2428 [2024-10-11 04:54:26,379 INFO L226 Difference]: Without dead ends: 2131 [2024-10-11 04:54:26,380 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 04:54:26,381 INFO L432 NwaCegarLoop]: 1648 mSDtfsCounter, 1512 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:26,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1738 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:54:26,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2024-10-11 04:54:26,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 2129. [2024-10-11 04:54:26,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2129 states, 2127 states have (on average 1.769158439116126) internal successors, (3763), 2128 states have internal predecessors, (3763), 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 04:54:26,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2129 states to 2129 states and 3763 transitions. [2024-10-11 04:54:26,414 INFO L78 Accepts]: Start accepts. Automaton has 2129 states and 3763 transitions. Word has length 78 [2024-10-11 04:54:26,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:26,415 INFO L471 AbstractCegarLoop]: Abstraction has 2129 states and 3763 transitions. [2024-10-11 04:54:26,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 04:54:26,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2129 states and 3763 transitions. [2024-10-11 04:54:26,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 04:54:26,416 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:26,416 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] [2024-10-11 04:54:26,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 04:54:26,416 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:26,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:26,416 INFO L85 PathProgramCache]: Analyzing trace with hash -186284849, now seen corresponding path program 1 times [2024-10-11 04:54:26,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:26,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299462735] [2024-10-11 04:54:26,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:26,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:26,467 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 04:54:26,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:26,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299462735] [2024-10-11 04:54:26,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299462735] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:26,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:26,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:54:26,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497926253] [2024-10-11 04:54:26,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:26,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:54:26,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:26,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:54:26,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:54:26,473 INFO L87 Difference]: Start difference. First operand 2129 states and 3763 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 04:54:26,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:26,512 INFO L93 Difference]: Finished difference Result 3217 states and 5465 transitions. [2024-10-11 04:54:26,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:54:26,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2024-10-11 04:54:26,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:26,520 INFO L225 Difference]: With dead ends: 3217 [2024-10-11 04:54:26,520 INFO L226 Difference]: Without dead ends: 2649 [2024-10-11 04:54:26,522 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 04:54:26,522 INFO L432 NwaCegarLoop]: 1646 mSDtfsCounter, 1510 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:26,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1740 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:54:26,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2649 states. [2024-10-11 04:54:26,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2649 to 2647. [2024-10-11 04:54:26,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2647 states, 2645 states have (on average 1.7236294896030246) internal successors, (4559), 2646 states have internal predecessors, (4559), 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 04:54:26,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2647 states to 2647 states and 4559 transitions. [2024-10-11 04:54:26,572 INFO L78 Accepts]: Start accepts. Automaton has 2647 states and 4559 transitions. Word has length 78 [2024-10-11 04:54:26,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:26,572 INFO L471 AbstractCegarLoop]: Abstraction has 2647 states and 4559 transitions. [2024-10-11 04:54:26,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 04:54:26,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2647 states and 4559 transitions. [2024-10-11 04:54:26,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 04:54:26,574 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:26,574 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] [2024-10-11 04:54:26,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 04:54:26,575 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:26,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:26,575 INFO L85 PathProgramCache]: Analyzing trace with hash -454868017, now seen corresponding path program 1 times [2024-10-11 04:54:26,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:26,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937452011] [2024-10-11 04:54:26,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:26,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:26,621 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 04:54:26,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:26,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937452011] [2024-10-11 04:54:26,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937452011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:26,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:26,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:54:26,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053344862] [2024-10-11 04:54:26,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:26,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:54:26,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:26,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:54:26,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:54:26,623 INFO L87 Difference]: Start difference. First operand 2647 states and 4559 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 04:54:26,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:26,670 INFO L93 Difference]: Finished difference Result 4723 states and 7769 transitions. [2024-10-11 04:54:26,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:54:26,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2024-10-11 04:54:26,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:26,680 INFO L225 Difference]: With dead ends: 4723 [2024-10-11 04:54:26,681 INFO L226 Difference]: Without dead ends: 3637 [2024-10-11 04:54:26,683 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 04:54:26,684 INFO L432 NwaCegarLoop]: 1644 mSDtfsCounter, 1508 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:26,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1742 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:54:26,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3637 states. [2024-10-11 04:54:26,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3637 to 3635. [2024-10-11 04:54:26,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3635 states, 3633 states have (on average 1.6666666666666667) internal successors, (6055), 3634 states have internal predecessors, (6055), 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 04:54:26,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3635 states to 3635 states and 6055 transitions. [2024-10-11 04:54:26,751 INFO L78 Accepts]: Start accepts. Automaton has 3635 states and 6055 transitions. Word has length 78 [2024-10-11 04:54:26,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:26,751 INFO L471 AbstractCegarLoop]: Abstraction has 3635 states and 6055 transitions. [2024-10-11 04:54:26,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 04:54:26,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3635 states and 6055 transitions. [2024-10-11 04:54:26,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 04:54:26,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:26,752 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] [2024-10-11 04:54:26,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 04:54:26,752 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:26,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:26,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1040580145, now seen corresponding path program 1 times [2024-10-11 04:54:26,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:26,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883581351] [2024-10-11 04:54:26,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:26,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:26,799 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 04:54:26,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:26,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883581351] [2024-10-11 04:54:26,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883581351] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:26,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:26,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:54:26,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602202726] [2024-10-11 04:54:26,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:26,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:54:26,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:26,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:54:26,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:54:26,802 INFO L87 Difference]: Start difference. First operand 3635 states and 6055 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 04:54:26,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:26,923 INFO L93 Difference]: Finished difference Result 7591 states and 12089 transitions. [2024-10-11 04:54:26,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:54:26,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2024-10-11 04:54:26,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:26,938 INFO L225 Difference]: With dead ends: 7591 [2024-10-11 04:54:26,938 INFO L226 Difference]: Without dead ends: 5517 [2024-10-11 04:54:26,941 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 04:54:26,942 INFO L432 NwaCegarLoop]: 1632 mSDtfsCounter, 1504 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:26,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1738 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:54:26,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5517 states. [2024-10-11 04:54:27,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5517 to 5515. [2024-10-11 04:54:27,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5515 states, 5513 states have (on average 1.6062035189551969) internal successors, (8855), 5514 states have internal predecessors, (8855), 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 04:54:27,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5515 states to 5515 states and 8855 transitions. [2024-10-11 04:54:27,093 INFO L78 Accepts]: Start accepts. Automaton has 5515 states and 8855 transitions. Word has length 78 [2024-10-11 04:54:27,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:27,094 INFO L471 AbstractCegarLoop]: Abstraction has 5515 states and 8855 transitions. [2024-10-11 04:54:27,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 04:54:27,094 INFO L276 IsEmpty]: Start isEmpty. Operand 5515 states and 8855 transitions. [2024-10-11 04:54:27,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 04:54:27,095 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:27,095 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] [2024-10-11 04:54:27,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 04:54:27,095 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:27,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:27,095 INFO L85 PathProgramCache]: Analyzing trace with hash -151846705, now seen corresponding path program 1 times [2024-10-11 04:54:27,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:27,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562246954] [2024-10-11 04:54:27,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:27,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:27,155 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 04:54:27,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:27,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562246954] [2024-10-11 04:54:27,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562246954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:27,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:27,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:54:27,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246726336] [2024-10-11 04:54:27,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:27,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:54:27,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:27,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:54:27,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:54:27,157 INFO L87 Difference]: Start difference. First operand 5515 states and 8855 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 04:54:27,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:27,331 INFO L93 Difference]: Finished difference Result 13039 states and 20153 transitions. [2024-10-11 04:54:27,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:54:27,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2024-10-11 04:54:27,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:27,353 INFO L225 Difference]: With dead ends: 13039 [2024-10-11 04:54:27,353 INFO L226 Difference]: Without dead ends: 9085 [2024-10-11 04:54:27,361 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 04:54:27,362 INFO L432 NwaCegarLoop]: 1630 mSDtfsCounter, 1502 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:27,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1740 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:54:27,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9085 states. [2024-10-11 04:54:27,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9085 to 9083. [2024-10-11 04:54:27,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9083 states, 9081 states have (on average 1.549498953859707) internal successors, (14071), 9082 states have internal predecessors, (14071), 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 04:54:27,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9083 states to 9083 states and 14071 transitions. [2024-10-11 04:54:27,600 INFO L78 Accepts]: Start accepts. Automaton has 9083 states and 14071 transitions. Word has length 78 [2024-10-11 04:54:27,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:27,601 INFO L471 AbstractCegarLoop]: Abstraction has 9083 states and 14071 transitions. [2024-10-11 04:54:27,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 04:54:27,601 INFO L276 IsEmpty]: Start isEmpty. Operand 9083 states and 14071 transitions. [2024-10-11 04:54:27,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 04:54:27,603 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:27,603 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] [2024-10-11 04:54:27,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 04:54:27,603 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:27,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:27,604 INFO L85 PathProgramCache]: Analyzing trace with hash -414924081, now seen corresponding path program 1 times [2024-10-11 04:54:27,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:27,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480898666] [2024-10-11 04:54:27,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:27,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:27,652 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 04:54:27,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:27,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480898666] [2024-10-11 04:54:27,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480898666] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:27,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:27,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:54:27,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55436645] [2024-10-11 04:54:27,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:27,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:54:27,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:27,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:54:27,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:54:27,654 INFO L87 Difference]: Start difference. First operand 9083 states and 14071 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 04:54:27,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:27,856 INFO L93 Difference]: Finished difference Result 23359 states and 35129 transitions. [2024-10-11 04:54:27,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:54:27,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2024-10-11 04:54:27,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:27,887 INFO L225 Difference]: With dead ends: 23359 [2024-10-11 04:54:27,887 INFO L226 Difference]: Without dead ends: 15837 [2024-10-11 04:54:27,901 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 04:54:27,901 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 1506 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:27,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1744 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:54:27,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15837 states. [2024-10-11 04:54:28,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15837 to 15835. [2024-10-11 04:54:28,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15835 states, 15833 states have (on average 1.4990841912461315) internal successors, (23735), 15834 states have internal predecessors, (23735), 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 04:54:28,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15835 states to 15835 states and 23735 transitions. [2024-10-11 04:54:28,341 INFO L78 Accepts]: Start accepts. Automaton has 15835 states and 23735 transitions. Word has length 78 [2024-10-11 04:54:28,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:28,341 INFO L471 AbstractCegarLoop]: Abstraction has 15835 states and 23735 transitions. [2024-10-11 04:54:28,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 04:54:28,341 INFO L276 IsEmpty]: Start isEmpty. Operand 15835 states and 23735 transitions. [2024-10-11 04:54:28,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-11 04:54:28,345 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:28,345 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:54:28,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 04:54:28,345 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:28,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:28,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1560472033, now seen corresponding path program 1 times [2024-10-11 04:54:28,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:28,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361802057] [2024-10-11 04:54:28,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:28,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:28,535 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 04:54:28,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:28,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361802057] [2024-10-11 04:54:28,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361802057] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:28,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:28,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 04:54:28,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524300812] [2024-10-11 04:54:28,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:28,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 04:54:28,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:28,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 04:54:28,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 04:54:28,537 INFO L87 Difference]: Start difference. First operand 15835 states and 23735 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 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 04:54:30,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:30,086 INFO L93 Difference]: Finished difference Result 114347 states and 167679 transitions. [2024-10-11 04:54:30,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 04:54:30,087 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 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 04:54:30,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:30,303 INFO L225 Difference]: With dead ends: 114347 [2024-10-11 04:54:30,303 INFO L226 Difference]: Without dead ends: 104361 [2024-10-11 04:54:30,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 04:54:30,336 INFO L432 NwaCegarLoop]: 1660 mSDtfsCounter, 9845 mSDsluCounter, 2945 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9845 SdHoareTripleChecker+Valid, 4605 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:30,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9845 Valid, 4605 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:54:30,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104361 states. [2024-10-11 04:54:31,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104361 to 27995. [2024-10-11 04:54:32,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27995 states, 27993 states have (on average 1.476619154788697) internal successors, (41335), 27994 states have internal predecessors, (41335), 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 04:54:32,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27995 states to 27995 states and 41335 transitions. [2024-10-11 04:54:32,096 INFO L78 Accepts]: Start accepts. Automaton has 27995 states and 41335 transitions. Word has length 100 [2024-10-11 04:54:32,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:32,097 INFO L471 AbstractCegarLoop]: Abstraction has 27995 states and 41335 transitions. [2024-10-11 04:54:32,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 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 04:54:32,097 INFO L276 IsEmpty]: Start isEmpty. Operand 27995 states and 41335 transitions. [2024-10-11 04:54:32,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-11 04:54:32,101 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:32,101 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:54:32,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 04:54:32,101 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:32,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:32,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1979111199, now seen corresponding path program 1 times [2024-10-11 04:54:32,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:32,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648169724] [2024-10-11 04:54:32,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:32,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:32,289 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 04:54:32,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:32,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648169724] [2024-10-11 04:54:32,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648169724] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:32,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:32,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 04:54:32,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254788115] [2024-10-11 04:54:32,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:32,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 04:54:32,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:32,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 04:54:32,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 04:54:32,293 INFO L87 Difference]: Start difference. First operand 27995 states and 41335 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 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 04:54:34,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:34,529 INFO L93 Difference]: Finished difference Result 128619 states and 188415 transitions. [2024-10-11 04:54:34,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 04:54:34,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 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 100 [2024-10-11 04:54:34,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:34,892 INFO L225 Difference]: With dead ends: 128619 [2024-10-11 04:54:34,893 INFO L226 Difference]: Without dead ends: 114345 [2024-10-11 04:54:34,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 04:54:34,918 INFO L432 NwaCegarLoop]: 1659 mSDtfsCounter, 9845 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9845 SdHoareTripleChecker+Valid, 4598 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:34,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9845 Valid, 4598 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:54:34,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114345 states. [2024-10-11 04:54:36,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114345 to 47259. [2024-10-11 04:54:36,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47259 states, 47257 states have (on average 1.4638043041242568) internal successors, (69175), 47258 states have internal predecessors, (69175), 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 04:54:36,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47259 states to 47259 states and 69175 transitions. [2024-10-11 04:54:36,727 INFO L78 Accepts]: Start accepts. Automaton has 47259 states and 69175 transitions. Word has length 100 [2024-10-11 04:54:36,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:36,729 INFO L471 AbstractCegarLoop]: Abstraction has 47259 states and 69175 transitions. [2024-10-11 04:54:36,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 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 04:54:36,729 INFO L276 IsEmpty]: Start isEmpty. Operand 47259 states and 69175 transitions. [2024-10-11 04:54:36,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-11 04:54:36,898 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:36,898 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:54:36,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 04:54:36,898 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:36,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:36,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1905469409, now seen corresponding path program 1 times [2024-10-11 04:54:36,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:36,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344067146] [2024-10-11 04:54:36,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:36,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:37,076 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 04:54:37,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:37,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344067146] [2024-10-11 04:54:37,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344067146] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:37,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:37,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 04:54:37,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009762752] [2024-10-11 04:54:37,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:37,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 04:54:37,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:37,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 04:54:37,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 04:54:37,078 INFO L87 Difference]: Start difference. First operand 47259 states and 69175 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 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 04:54:39,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:39,922 INFO L93 Difference]: Finished difference Result 142891 states and 209087 transitions. [2024-10-11 04:54:39,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 04:54:39,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 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 04:54:39,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:40,132 INFO L225 Difference]: With dead ends: 142891 [2024-10-11 04:54:40,132 INFO L226 Difference]: Without dead ends: 128617 [2024-10-11 04:54:40,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 04:54:40,170 INFO L432 NwaCegarLoop]: 1657 mSDtfsCounter, 9866 mSDsluCounter, 2879 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9866 SdHoareTripleChecker+Valid, 4536 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:40,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9866 Valid, 4536 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:54:40,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128617 states. [2024-10-11 04:54:42,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128617 to 61531. [2024-10-11 04:54:42,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61531 states, 61529 states have (on average 1.460238261632726) internal successors, (89847), 61530 states have internal predecessors, (89847), 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 04:54:42,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61531 states to 61531 states and 89847 transitions. [2024-10-11 04:54:42,811 INFO L78 Accepts]: Start accepts. Automaton has 61531 states and 89847 transitions. Word has length 100 [2024-10-11 04:54:42,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:42,812 INFO L471 AbstractCegarLoop]: Abstraction has 61531 states and 89847 transitions. [2024-10-11 04:54:42,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 9 states have internal predecessors, (95), 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 04:54:42,812 INFO L276 IsEmpty]: Start isEmpty. Operand 61531 states and 89847 transitions. [2024-10-11 04:54:42,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-11 04:54:42,818 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:42,818 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:54:42,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 04:54:42,819 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:42,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:42,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1636886241, now seen corresponding path program 1 times [2024-10-11 04:54:42,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:42,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550713276] [2024-10-11 04:54:42,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:42,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:42,985 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 04:54:42,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:42,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550713276] [2024-10-11 04:54:42,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550713276] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:42,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:42,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 04:54:42,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689763883] [2024-10-11 04:54:42,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:42,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 04:54:42,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:42,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 04:54:42,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 04:54:42,987 INFO L87 Difference]: Start difference. First operand 61531 states and 89847 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 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 04:54:46,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:46,415 INFO L93 Difference]: Finished difference Result 157163 states and 229759 transitions. [2024-10-11 04:54:46,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 04:54:46,416 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 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 04:54:46,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:46,633 INFO L225 Difference]: With dead ends: 157163 [2024-10-11 04:54:46,633 INFO L226 Difference]: Without dead ends: 142889 [2024-10-11 04:54:46,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 04:54:46,674 INFO L432 NwaCegarLoop]: 1655 mSDtfsCounter, 9955 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9955 SdHoareTripleChecker+Valid, 4453 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:46,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9955 Valid, 4453 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:54:46,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142889 states. [2024-10-11 04:54:49,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142889 to 75803. [2024-10-11 04:54:49,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75803 states, 75801 states have (on average 1.4580150657643038) internal successors, (110519), 75802 states have internal predecessors, (110519), 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 04:54:49,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75803 states to 75803 states and 110519 transitions. [2024-10-11 04:54:49,781 INFO L78 Accepts]: Start accepts. Automaton has 75803 states and 110519 transitions. Word has length 100 [2024-10-11 04:54:49,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:49,782 INFO L471 AbstractCegarLoop]: Abstraction has 75803 states and 110519 transitions. [2024-10-11 04:54:49,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 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 04:54:49,782 INFO L276 IsEmpty]: Start isEmpty. Operand 75803 states and 110519 transitions. [2024-10-11 04:54:49,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-11 04:54:49,790 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:49,791 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:54:49,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 04:54:49,791 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:49,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:49,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1051174113, now seen corresponding path program 1 times [2024-10-11 04:54:49,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:49,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409617871] [2024-10-11 04:54:49,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:49,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:50,029 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 04:54:50,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:50,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409617871] [2024-10-11 04:54:50,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409617871] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:50,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:50,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 04:54:50,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653079512] [2024-10-11 04:54:50,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:50,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 04:54:50,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:50,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 04:54:50,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 04:54:50,161 INFO L87 Difference]: Start difference. First operand 75803 states and 110519 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 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 04:54:53,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:54:53,928 INFO L93 Difference]: Finished difference Result 171435 states and 250431 transitions. [2024-10-11 04:54:53,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 04:54:53,928 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 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 04:54:53,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:54:54,170 INFO L225 Difference]: With dead ends: 171435 [2024-10-11 04:54:54,171 INFO L226 Difference]: Without dead ends: 157161 [2024-10-11 04:54:54,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 04:54:54,208 INFO L432 NwaCegarLoop]: 1653 mSDtfsCounter, 10038 mSDsluCounter, 2836 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10038 SdHoareTripleChecker+Valid, 4489 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:54:54,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10038 Valid, 4489 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:54:54,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157161 states. [2024-10-11 04:54:57,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157161 to 90075. [2024-10-11 04:54:57,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90075 states, 90073 states have (on average 1.4564963973665805) internal successors, (131191), 90074 states have internal predecessors, (131191), 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 04:54:57,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90075 states to 90075 states and 131191 transitions. [2024-10-11 04:54:57,556 INFO L78 Accepts]: Start accepts. Automaton has 90075 states and 131191 transitions. Word has length 100 [2024-10-11 04:54:57,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:54:57,557 INFO L471 AbstractCegarLoop]: Abstraction has 90075 states and 131191 transitions. [2024-10-11 04:54:57,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 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 04:54:57,558 INFO L276 IsEmpty]: Start isEmpty. Operand 90075 states and 131191 transitions. [2024-10-11 04:54:57,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-11 04:54:57,568 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:54:57,568 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:54:57,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 04:54:57,569 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:54:57,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:54:57,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1939907553, now seen corresponding path program 1 times [2024-10-11 04:54:57,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:54:57,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562754907] [2024-10-11 04:54:57,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:54:57,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:54:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:54:57,743 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-11 04:54:57,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:54:57,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562754907] [2024-10-11 04:54:57,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562754907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:54:57,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:54:57,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 04:54:57,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113746658] [2024-10-11 04:54:57,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:54:57,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 04:54:57,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:54:57,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 04:54:57,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 04:54:57,745 INFO L87 Difference]: Start difference. First operand 90075 states and 131191 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 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 04:55:02,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:55:02,015 INFO L93 Difference]: Finished difference Result 185707 states and 271103 transitions. [2024-10-11 04:55:02,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 04:55:02,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 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 04:55:02,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:55:02,266 INFO L225 Difference]: With dead ends: 185707 [2024-10-11 04:55:02,266 INFO L226 Difference]: Without dead ends: 171433 [2024-10-11 04:55:02,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-10-11 04:55:02,305 INFO L432 NwaCegarLoop]: 1653 mSDtfsCounter, 9909 mSDsluCounter, 2867 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9909 SdHoareTripleChecker+Valid, 4520 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:55:02,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9909 Valid, 4520 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:55:02,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171433 states.