./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.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.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.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.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 2d5ef49da8a464b4b8c9ada6da6f38848fd0a828ef607f1296d8e73281f8aa1e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 04:50:35,757 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 04:50:35,808 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 04:50:35,811 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 04:50:35,812 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 04:50:35,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 04:50:35,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 04:50:35,862 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 04:50:35,862 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 04:50:35,864 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 04:50:35,864 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 04:50:35,864 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 04:50:35,865 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 04:50:35,867 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 04:50:35,867 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 04:50:35,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 04:50:35,867 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 04:50:35,868 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 04:50:35,868 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 04:50:35,868 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 04:50:35,868 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 04:50:35,871 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 04:50:35,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 04:50:35,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 04:50:35,871 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 04:50:35,871 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 04:50:35,872 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 04:50:35,872 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 04:50:35,872 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 04:50:35,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 04:50:35,872 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 04:50:35,872 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 04:50:35,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:50:35,873 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 04:50:35,873 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 04:50:35,873 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 04:50:35,873 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 04:50:35,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 04:50:35,873 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 04:50:35,874 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 04:50:35,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 04:50:35,875 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 04:50:35,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d5ef49da8a464b4b8c9ada6da6f38848fd0a828ef607f1296d8e73281f8aa1e [2024-10-11 04:50:36,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 04:50:36,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 04:50:36,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 04:50:36,118 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 04:50:36,119 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 04:50:36,120 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-10-11 04:50:37,540 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 04:50:38,006 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 04:50:38,007 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-10-11 04:50:38,042 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8178e5e1a/5d3d531cc46c48c6bfa38e159f0fdfef/FLAG325d905c4 [2024-10-11 04:50:38,057 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8178e5e1a/5d3d531cc46c48c6bfa38e159f0fdfef [2024-10-11 04:50:38,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 04:50:38,062 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 04:50:38,063 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 04:50:38,064 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 04:50:38,069 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 04:50:38,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:50:38" (1/1) ... [2024-10-11 04:50:38,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77904348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:50:38, skipping insertion in model container [2024-10-11 04:50:38,071 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:50:38" (1/1) ... [2024-10-11 04:50:38,208 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 04:50:38,496 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.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[11742,11755] [2024-10-11 04:50:38,534 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.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[19032,19045] [2024-10-11 04:50:39,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:50:39,045 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 04:50:39,128 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.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[11742,11755] [2024-10-11 04:50:39,139 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.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[19032,19045] [2024-10-11 04:50:39,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:50:39,422 INFO L204 MainTranslator]: Completed translation [2024-10-11 04:50:39,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:50:39 WrapperNode [2024-10-11 04:50:39,423 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 04:50:39,424 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 04:50:39,424 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 04:50:39,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 04:50:39,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:50:39" (1/1) ... [2024-10-11 04:50:39,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:50:39" (1/1) ... [2024-10-11 04:50:39,825 INFO L138 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5095 [2024-10-11 04:50:39,825 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 04:50:39,826 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 04:50:39,826 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 04:50:39,826 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 04:50:39,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:50:39" (1/1) ... [2024-10-11 04:50:39,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:50:39" (1/1) ... [2024-10-11 04:50:39,923 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:50:39" (1/1) ... [2024-10-11 04:50:40,083 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 04:50:40,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:50:39" (1/1) ... [2024-10-11 04:50:40,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:50:39" (1/1) ... [2024-10-11 04:50:40,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:50:39" (1/1) ... [2024-10-11 04:50:40,248 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:50:39" (1/1) ... [2024-10-11 04:50:40,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:50:39" (1/1) ... [2024-10-11 04:50:40,297 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:50:39" (1/1) ... [2024-10-11 04:50:40,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 04:50:40,344 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 04:50:40,344 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 04:50:40,345 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 04:50:40,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:50:39" (1/1) ... [2024-10-11 04:50:40,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:50:40,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:50:40,377 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 04:50:40,379 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 04:50:40,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 04:50:40,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 04:50:40,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 04:50:40,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 04:50:40,508 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 04:50:40,510 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 04:50:44,512 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-10-11 04:50:44,512 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 04:50:44,554 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 04:50:44,554 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 04:50:44,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:50:44 BoogieIcfgContainer [2024-10-11 04:50:44,555 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 04:50:44,556 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 04:50:44,556 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 04:50:44,559 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 04:50:44,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:50:38" (1/3) ... [2024-10-11 04:50:44,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d86c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:50:44, skipping insertion in model container [2024-10-11 04:50:44,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:50:39" (2/3) ... [2024-10-11 04:50:44,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d86c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:50:44, skipping insertion in model container [2024-10-11 04:50:44,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:50:44" (3/3) ... [2024-10-11 04:50:44,561 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-10-11 04:50:44,575 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 04:50:44,575 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 04:50:44,659 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 04:50:44,665 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;@2a3f65ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 04:50:44,665 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 04:50:44,673 INFO L276 IsEmpty]: Start isEmpty. Operand has 834 states, 831 states have (on average 1.9759326113116726) internal successors, (1642), 833 states have internal predecessors, (1642), 0 states have call successors, (0), 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 04:50:44,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-11 04:50:44,679 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:44,680 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] [2024-10-11 04:50:44,680 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:44,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:44,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1603356568, now seen corresponding path program 1 times [2024-10-11 04:50:44,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:44,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980647267] [2024-10-11 04:50:44,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:44,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:44,871 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 04:50:44,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:44,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980647267] [2024-10-11 04:50:44,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980647267] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:44,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:44,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 04:50:44,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287636425] [2024-10-11 04:50:44,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:44,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 04:50:44,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:44,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 04:50:44,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 04:50:44,904 INFO L87 Difference]: Start difference. First operand has 834 states, 831 states have (on average 1.9759326113116726) internal successors, (1642), 833 states have internal predecessors, (1642), 0 states have call successors, (0), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 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 04:50:44,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:44,988 INFO L93 Difference]: Finished difference Result 1632 states and 3215 transitions. [2024-10-11 04:50:44,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 04:50:44,995 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2024-10-11 04:50:44,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:45,018 INFO L225 Difference]: With dead ends: 1632 [2024-10-11 04:50:45,019 INFO L226 Difference]: Without dead ends: 830 [2024-10-11 04:50:45,025 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 04:50:45,030 INFO L432 NwaCegarLoop]: 1570 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:50:45,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1570 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:50:45,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-10-11 04:50:45,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2024-10-11 04:50:45,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 828 states have (on average 1.8973429951690821) internal successors, (1571), 829 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:50:45,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1571 transitions. [2024-10-11 04:50:45,163 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1571 transitions. Word has length 21 [2024-10-11 04:50:45,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:45,164 INFO L471 AbstractCegarLoop]: Abstraction has 830 states and 1571 transitions. [2024-10-11 04:50:45,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 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 04:50:45,165 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1571 transitions. [2024-10-11 04:50:45,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-11 04:50:45,170 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:45,171 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] [2024-10-11 04:50:45,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 04:50:45,171 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:45,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:45,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1103262826, now seen corresponding path program 1 times [2024-10-11 04:50:45,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:45,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810603955] [2024-10-11 04:50:45,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:45,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:45,389 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 04:50:45,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:45,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810603955] [2024-10-11 04:50:45,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810603955] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:45,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:45,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 04:50:45,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303405243] [2024-10-11 04:50:45,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:45,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 04:50:45,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:45,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 04:50:45,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:50:45,394 INFO L87 Difference]: Start difference. First operand 830 states and 1571 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 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 04:50:45,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:45,507 INFO L93 Difference]: Finished difference Result 874 states and 1640 transitions. [2024-10-11 04:50:45,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 04:50:45,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2024-10-11 04:50:45,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:45,515 INFO L225 Difference]: With dead ends: 874 [2024-10-11 04:50:45,516 INFO L226 Difference]: Without dead ends: 830 [2024-10-11 04:50:45,516 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 04:50:45,521 INFO L432 NwaCegarLoop]: 1568 mSDtfsCounter, 0 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4669 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:50:45,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4669 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:50:45,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-10-11 04:50:45,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2024-10-11 04:50:45,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 828 states have (on average 1.8599033816425121) internal successors, (1540), 829 states have internal predecessors, (1540), 0 states have call successors, (0), 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 04:50:45,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1540 transitions. [2024-10-11 04:50:45,549 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1540 transitions. Word has length 21 [2024-10-11 04:50:45,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:45,549 INFO L471 AbstractCegarLoop]: Abstraction has 830 states and 1540 transitions. [2024-10-11 04:50:45,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 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 04:50:45,550 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1540 transitions. [2024-10-11 04:50:45,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-11 04:50:45,557 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:45,557 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] [2024-10-11 04:50:45,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 04:50:45,558 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:45,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:45,558 INFO L85 PathProgramCache]: Analyzing trace with hash 51546625, now seen corresponding path program 1 times [2024-10-11 04:50:45,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:45,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469730246] [2024-10-11 04:50:45,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:45,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:45,919 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 04:50:45,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:45,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469730246] [2024-10-11 04:50:45,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469730246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:45,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:45,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:50:45,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741971126] [2024-10-11 04:50:45,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:45,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:50:45,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:45,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:50:45,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:50:45,925 INFO L87 Difference]: Start difference. First operand 830 states and 1540 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 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 04:50:46,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:46,268 INFO L93 Difference]: Finished difference Result 1240 states and 2200 transitions. [2024-10-11 04:50:46,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 04:50:46,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2024-10-11 04:50:46,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:46,273 INFO L225 Difference]: With dead ends: 1240 [2024-10-11 04:50:46,273 INFO L226 Difference]: Without dead ends: 1199 [2024-10-11 04:50:46,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-10-11 04:50:46,275 INFO L432 NwaCegarLoop]: 1533 mSDtfsCounter, 7933 mSDsluCounter, 1167 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7933 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 04:50:46,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7933 Valid, 2700 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 04:50:46,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2024-10-11 04:50:46,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 869. [2024-10-11 04:50:46,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 867 states have (on average 1.8489042675893888) internal successors, (1603), 868 states have internal predecessors, (1603), 0 states have call successors, (0), 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 04:50:46,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1603 transitions. [2024-10-11 04:50:46,293 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1603 transitions. Word has length 51 [2024-10-11 04:50:46,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:46,294 INFO L471 AbstractCegarLoop]: Abstraction has 869 states and 1603 transitions. [2024-10-11 04:50:46,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 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 04:50:46,294 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1603 transitions. [2024-10-11 04:50:46,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-11 04:50:46,296 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:46,296 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] [2024-10-11 04:50:46,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 04:50:46,299 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:46,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:46,301 INFO L85 PathProgramCache]: Analyzing trace with hash 2145916561, now seen corresponding path program 1 times [2024-10-11 04:50:46,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:46,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949534883] [2024-10-11 04:50:46,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:46,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:46,492 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 04:50:46,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:46,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949534883] [2024-10-11 04:50:46,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949534883] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:46,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:46,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:50:46,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760298645] [2024-10-11 04:50:46,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:46,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:50:46,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:46,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:50:46,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:50:46,496 INFO L87 Difference]: Start difference. First operand 869 states and 1603 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 04:50:46,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:46,534 INFO L93 Difference]: Finished difference Result 1018 states and 1842 transitions. [2024-10-11 04:50:46,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:50:46,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-10-11 04:50:46,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:46,537 INFO L225 Difference]: With dead ends: 1018 [2024-10-11 04:50:46,538 INFO L226 Difference]: Without dead ends: 938 [2024-10-11 04:50:46,540 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 04:50:46,540 INFO L432 NwaCegarLoop]: 1535 mSDtfsCounter, 1480 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1595 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 04:50:46,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 1595 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:50:46,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2024-10-11 04:50:46,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 936. [2024-10-11 04:50:46,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 934 states have (on average 1.8297644539614561) internal successors, (1709), 935 states have internal predecessors, (1709), 0 states have call successors, (0), 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 04:50:46,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1709 transitions. [2024-10-11 04:50:46,557 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1709 transitions. Word has length 53 [2024-10-11 04:50:46,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:46,558 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1709 transitions. [2024-10-11 04:50:46,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 04:50:46,558 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1709 transitions. [2024-10-11 04:50:46,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-11 04:50:46,561 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:46,561 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] [2024-10-11 04:50:46,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 04:50:46,562 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:46,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:46,562 INFO L85 PathProgramCache]: Analyzing trace with hash -2146905783, now seen corresponding path program 1 times [2024-10-11 04:50:46,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:46,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144897704] [2024-10-11 04:50:46,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:46,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:46,784 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 04:50:46,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:46,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144897704] [2024-10-11 04:50:46,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144897704] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:46,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:46,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:50:46,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543581909] [2024-10-11 04:50:46,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:46,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:50:46,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:46,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:50:46,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:50:46,786 INFO L87 Difference]: Start difference. First operand 936 states and 1709 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 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 04:50:46,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:46,925 INFO L93 Difference]: Finished difference Result 1085 states and 1945 transitions. [2024-10-11 04:50:46,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:50:46,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2024-10-11 04:50:46,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:46,928 INFO L225 Difference]: With dead ends: 1085 [2024-10-11 04:50:46,928 INFO L226 Difference]: Without dead ends: 938 [2024-10-11 04:50:46,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-11 04:50:46,929 INFO L432 NwaCegarLoop]: 1530 mSDtfsCounter, 2990 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2990 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:50:46,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2990 Valid, 1781 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:50:46,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2024-10-11 04:50:46,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 936. [2024-10-11 04:50:46,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 934 states have (on average 1.8276231263383298) internal successors, (1707), 935 states have internal predecessors, (1707), 0 states have call successors, (0), 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 04:50:46,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1707 transitions. [2024-10-11 04:50:46,943 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1707 transitions. Word has length 53 [2024-10-11 04:50:46,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:46,943 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1707 transitions. [2024-10-11 04:50:46,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 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 04:50:46,944 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1707 transitions. [2024-10-11 04:50:46,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 04:50:46,944 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:46,944 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] [2024-10-11 04:50:46,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 04:50:46,945 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:46,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:46,945 INFO L85 PathProgramCache]: Analyzing trace with hash 2036322024, now seen corresponding path program 1 times [2024-10-11 04:50:46,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:46,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286107922] [2024-10-11 04:50:46,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:46,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:47,040 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 04:50:47,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:47,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286107922] [2024-10-11 04:50:47,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286107922] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:47,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:47,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 04:50:47,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935705147] [2024-10-11 04:50:47,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:47,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 04:50:47,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:47,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 04:50:47,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:50:47,042 INFO L87 Difference]: Start difference. First operand 936 states and 1707 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 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 04:50:47,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:47,071 INFO L93 Difference]: Finished difference Result 942 states and 1714 transitions. [2024-10-11 04:50:47,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 04:50:47,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-10-11 04:50:47,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:47,075 INFO L225 Difference]: With dead ends: 942 [2024-10-11 04:50:47,075 INFO L226 Difference]: Without dead ends: 940 [2024-10-11 04:50:47,075 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 04:50:47,076 INFO L432 NwaCegarLoop]: 1536 mSDtfsCounter, 0 mSDsluCounter, 3064 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4600 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 04:50:47,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4600 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:50:47,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2024-10-11 04:50:47,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 940. [2024-10-11 04:50:47,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 938 states have (on average 1.8230277185501067) internal successors, (1710), 939 states have internal predecessors, (1710), 0 states have call successors, (0), 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 04:50:47,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1710 transitions. [2024-10-11 04:50:47,093 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1710 transitions. Word has length 54 [2024-10-11 04:50:47,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:47,094 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1710 transitions. [2024-10-11 04:50:47,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 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 04:50:47,094 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1710 transitions. [2024-10-11 04:50:47,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-11 04:50:47,094 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:47,094 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] [2024-10-11 04:50:47,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 04:50:47,095 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:47,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:47,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1922958665, now seen corresponding path program 1 times [2024-10-11 04:50:47,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:47,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648369676] [2024-10-11 04:50:47,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:47,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:47,170 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 04:50:47,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:47,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648369676] [2024-10-11 04:50:47,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648369676] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:47,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:47,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:50:47,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355692591] [2024-10-11 04:50:47,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:47,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:50:47,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:47,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:50:47,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:50:47,172 INFO L87 Difference]: Start difference. First operand 940 states and 1710 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 04:50:47,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:47,197 INFO L93 Difference]: Finished difference Result 1102 states and 1963 transitions. [2024-10-11 04:50:47,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:50:47,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-10-11 04:50:47,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:47,201 INFO L225 Difference]: With dead ends: 1102 [2024-10-11 04:50:47,201 INFO L226 Difference]: Without dead ends: 1018 [2024-10-11 04:50:47,202 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 04:50:47,204 INFO L432 NwaCegarLoop]: 1587 mSDtfsCounter, 1494 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1653 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 04:50:47,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1653 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:50:47,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2024-10-11 04:50:47,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 1016. [2024-10-11 04:50:47,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 1014 states have (on average 1.801775147928994) internal successors, (1827), 1015 states have internal predecessors, (1827), 0 states have call successors, (0), 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 04:50:47,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1827 transitions. [2024-10-11 04:50:47,218 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1827 transitions. Word has length 55 [2024-10-11 04:50:47,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:47,219 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1827 transitions. [2024-10-11 04:50:47,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 04:50:47,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1827 transitions. [2024-10-11 04:50:47,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-11 04:50:47,220 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:47,220 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:50:47,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 04:50:47,220 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:47,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:47,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1694319433, now seen corresponding path program 1 times [2024-10-11 04:50:47,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:47,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418248257] [2024-10-11 04:50:47,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:47,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:47,274 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 04:50:47,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:47,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418248257] [2024-10-11 04:50:47,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418248257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:47,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:47,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:50:47,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245642522] [2024-10-11 04:50:47,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:47,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:50:47,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:47,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:50:47,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:50:47,275 INFO L87 Difference]: Start difference. First operand 1016 states and 1827 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 04:50:47,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:47,303 INFO L93 Difference]: Finished difference Result 1442 states and 2487 transitions. [2024-10-11 04:50:47,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:50:47,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-10-11 04:50:47,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:47,308 INFO L225 Difference]: With dead ends: 1442 [2024-10-11 04:50:47,308 INFO L226 Difference]: Without dead ends: 1217 [2024-10-11 04:50:47,308 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 04:50:47,309 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 1490 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1653 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 04:50:47,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1653 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:50:47,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2024-10-11 04:50:47,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1215. [2024-10-11 04:50:47,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1215 states, 1213 states have (on average 1.7551525144270403) internal successors, (2129), 1214 states have internal predecessors, (2129), 0 states have call successors, (0), 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 04:50:47,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 2129 transitions. [2024-10-11 04:50:47,325 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 2129 transitions. Word has length 55 [2024-10-11 04:50:47,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:47,325 INFO L471 AbstractCegarLoop]: Abstraction has 1215 states and 2129 transitions. [2024-10-11 04:50:47,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 04:50:47,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 2129 transitions. [2024-10-11 04:50:47,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-11 04:50:47,326 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:47,326 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] [2024-10-11 04:50:47,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 04:50:47,326 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:47,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:47,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1068663369, now seen corresponding path program 1 times [2024-10-11 04:50:47,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:47,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923825964] [2024-10-11 04:50:47,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:47,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:47,368 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 04:50:47,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:47,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923825964] [2024-10-11 04:50:47,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923825964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:47,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:47,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:50:47,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751363695] [2024-10-11 04:50:47,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:47,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:50:47,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:47,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:50:47,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:50:47,370 INFO L87 Difference]: Start difference. First operand 1215 states and 2129 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 04:50:47,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:47,404 INFO L93 Difference]: Finished difference Result 2015 states and 3351 transitions. [2024-10-11 04:50:47,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:50:47,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-10-11 04:50:47,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:47,409 INFO L225 Difference]: With dead ends: 2015 [2024-10-11 04:50:47,410 INFO L226 Difference]: Without dead ends: 1591 [2024-10-11 04:50:47,411 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 04:50:47,411 INFO L432 NwaCegarLoop]: 1577 mSDtfsCounter, 1488 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1655 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 04:50:47,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1655 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:50:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1591 states. [2024-10-11 04:50:47,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1591 to 1589. [2024-10-11 04:50:47,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1587 states have (on average 1.6918714555765595) internal successors, (2685), 1588 states have internal predecessors, (2685), 0 states have call successors, (0), 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 04:50:47,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2685 transitions. [2024-10-11 04:50:47,502 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2685 transitions. Word has length 55 [2024-10-11 04:50:47,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:47,502 INFO L471 AbstractCegarLoop]: Abstraction has 1589 states and 2685 transitions. [2024-10-11 04:50:47,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 04:50:47,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2685 transitions. [2024-10-11 04:50:47,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-11 04:50:47,503 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:47,503 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] [2024-10-11 04:50:47,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 04:50:47,503 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:47,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:47,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1957396809, now seen corresponding path program 1 times [2024-10-11 04:50:47,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:47,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791319604] [2024-10-11 04:50:47,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:47,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:47,544 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 04:50:47,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:47,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791319604] [2024-10-11 04:50:47,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791319604] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:47,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:47,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:50:47,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481951337] [2024-10-11 04:50:47,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:47,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:50:47,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:47,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:50:47,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:50:47,547 INFO L87 Difference]: Start difference. First operand 1589 states and 2685 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 04:50:47,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:47,592 INFO L93 Difference]: Finished difference Result 3089 states and 4935 transitions. [2024-10-11 04:50:47,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:50:47,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-10-11 04:50:47,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:47,599 INFO L225 Difference]: With dead ends: 3089 [2024-10-11 04:50:47,599 INFO L226 Difference]: Without dead ends: 2291 [2024-10-11 04:50:47,600 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 04:50:47,601 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 1486 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1657 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 04:50:47,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1657 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:50:47,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2024-10-11 04:50:47,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2289. [2024-10-11 04:50:47,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2289 states, 2287 states have (on average 1.6182772190642762) internal successors, (3701), 2288 states have internal predecessors, (3701), 0 states have call successors, (0), 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 04:50:47,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 3701 transitions. [2024-10-11 04:50:47,655 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 3701 transitions. Word has length 55 [2024-10-11 04:50:47,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:47,655 INFO L471 AbstractCegarLoop]: Abstraction has 2289 states and 3701 transitions. [2024-10-11 04:50:47,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 04:50:47,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 3701 transitions. [2024-10-11 04:50:47,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-11 04:50:47,656 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:47,656 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] [2024-10-11 04:50:47,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 04:50:47,656 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:47,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:47,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1654375497, now seen corresponding path program 1 times [2024-10-11 04:50:47,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:47,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774685189] [2024-10-11 04:50:47,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:47,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:47,698 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 04:50:47,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:47,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774685189] [2024-10-11 04:50:47,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774685189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:47,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:47,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:50:47,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928759144] [2024-10-11 04:50:47,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:47,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:50:47,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:47,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:50:47,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:50:47,700 INFO L87 Difference]: Start difference. First operand 2289 states and 3701 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 04:50:47,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:47,765 INFO L93 Difference]: Finished difference Result 5093 states and 7815 transitions. [2024-10-11 04:50:47,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:50:47,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-10-11 04:50:47,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:47,775 INFO L225 Difference]: With dead ends: 5093 [2024-10-11 04:50:47,775 INFO L226 Difference]: Without dead ends: 3595 [2024-10-11 04:50:47,778 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 04:50:47,778 INFO L432 NwaCegarLoop]: 1589 mSDtfsCounter, 1492 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1659 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 04:50:47,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1659 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:50:47,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3595 states. [2024-10-11 04:50:47,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3595 to 3593. [2024-10-11 04:50:47,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3593 states, 3591 states have (on average 1.5430242272347536) internal successors, (5541), 3592 states have internal predecessors, (5541), 0 states have call successors, (0), 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 04:50:47,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3593 states to 3593 states and 5541 transitions. [2024-10-11 04:50:47,866 INFO L78 Accepts]: Start accepts. Automaton has 3593 states and 5541 transitions. Word has length 55 [2024-10-11 04:50:47,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:47,866 INFO L471 AbstractCegarLoop]: Abstraction has 3593 states and 5541 transitions. [2024-10-11 04:50:47,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 04:50:47,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3593 states and 5541 transitions. [2024-10-11 04:50:47,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 04:50:47,867 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:47,867 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] [2024-10-11 04:50:47,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 04:50:47,867 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:47,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:47,868 INFO L85 PathProgramCache]: Analyzing trace with hash 707266715, now seen corresponding path program 1 times [2024-10-11 04:50:47,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:47,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151359903] [2024-10-11 04:50:47,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:47,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:47,939 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 04:50:47,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:47,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151359903] [2024-10-11 04:50:47,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151359903] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:47,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:47,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 04:50:47,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452655228] [2024-10-11 04:50:47,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:47,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:50:47,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:47,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:50:47,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:50:47,941 INFO L87 Difference]: Start difference. First operand 3593 states and 5541 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 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 04:50:50,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:50,972 INFO L93 Difference]: Finished difference Result 5097 states and 8414 transitions. [2024-10-11 04:50:50,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:50:50,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-10-11 04:50:50,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:50,990 INFO L225 Difference]: With dead ends: 5097 [2024-10-11 04:50:50,990 INFO L226 Difference]: Without dead ends: 4344 [2024-10-11 04:50:50,991 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 04:50:50,992 INFO L432 NwaCegarLoop]: 566 mSDtfsCounter, 840 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-11 04:50:50,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 573 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-11 04:50:50,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4344 states. [2024-10-11 04:50:51,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4344 to 4344. [2024-10-11 04:50:51,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4344 states, 4342 states have (on average 1.501612160294795) internal successors, (6520), 4343 states have internal predecessors, (6520), 0 states have call successors, (0), 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 04:50:51,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4344 states to 4344 states and 6520 transitions. [2024-10-11 04:50:51,071 INFO L78 Accepts]: Start accepts. Automaton has 4344 states and 6520 transitions. Word has length 62 [2024-10-11 04:50:51,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:51,072 INFO L471 AbstractCegarLoop]: Abstraction has 4344 states and 6520 transitions. [2024-10-11 04:50:51,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 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 04:50:51,072 INFO L276 IsEmpty]: Start isEmpty. Operand 4344 states and 6520 transitions. [2024-10-11 04:50:51,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-11 04:50:51,075 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:51,075 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:50:51,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 04:50:51,076 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:51,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:51,076 INFO L85 PathProgramCache]: Analyzing trace with hash 285878162, now seen corresponding path program 1 times [2024-10-11 04:50:51,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:51,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825166122] [2024-10-11 04:50:51,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:51,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:51,229 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 04:50:51,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:51,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825166122] [2024-10-11 04:50:51,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825166122] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:51,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:51,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:50:51,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664898324] [2024-10-11 04:50:51,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:51,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:50:51,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:51,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:50:51,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:50:51,231 INFO L87 Difference]: Start difference. First operand 4344 states and 6520 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 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 04:50:51,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:51,581 INFO L93 Difference]: Finished difference Result 18132 states and 26510 transitions. [2024-10-11 04:50:51,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:50:51,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-10-11 04:50:51,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:51,616 INFO L225 Difference]: With dead ends: 18132 [2024-10-11 04:50:51,616 INFO L226 Difference]: Without dead ends: 16146 [2024-10-11 04:50:51,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:50:51,626 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 6293 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6293 SdHoareTripleChecker+Valid, 3541 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:50:51,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6293 Valid, 3541 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:50:51,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16146 states. [2024-10-11 04:50:51,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16146 to 6744. [2024-10-11 04:50:51,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6744 states, 6742 states have (on average 1.4773064372589737) internal successors, (9960), 6743 states have internal predecessors, (9960), 0 states have call successors, (0), 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 04:50:51,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6744 states to 6744 states and 9960 transitions. [2024-10-11 04:50:51,809 INFO L78 Accepts]: Start accepts. Automaton has 6744 states and 9960 transitions. Word has length 73 [2024-10-11 04:50:51,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:51,809 INFO L471 AbstractCegarLoop]: Abstraction has 6744 states and 9960 transitions. [2024-10-11 04:50:51,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 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 04:50:51,810 INFO L276 IsEmpty]: Start isEmpty. Operand 6744 states and 9960 transitions. [2024-10-11 04:50:51,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-11 04:50:51,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:51,811 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:50:51,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 04:50:51,811 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:51,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:51,812 INFO L85 PathProgramCache]: Analyzing trace with hash 57238930, now seen corresponding path program 1 times [2024-10-11 04:50:51,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:51,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096244316] [2024-10-11 04:50:51,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:51,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:51,931 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 04:50:51,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:51,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096244316] [2024-10-11 04:50:51,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096244316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:51,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:51,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:50:51,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499454941] [2024-10-11 04:50:51,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:51,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:50:51,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:51,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:50:51,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:50:51,933 INFO L87 Difference]: Start difference. First operand 6744 states and 9960 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:50:52,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:52,301 INFO L93 Difference]: Finished difference Result 20932 states and 30542 transitions. [2024-10-11 04:50:52,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:50:52,301 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-10-11 04:50:52,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:52,326 INFO L225 Difference]: With dead ends: 20932 [2024-10-11 04:50:52,326 INFO L226 Difference]: Without dead ends: 18130 [2024-10-11 04:50:52,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:50:52,335 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 6336 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6336 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:50:52,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6336 Valid, 3592 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:50:52,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18130 states. [2024-10-11 04:50:52,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18130 to 10536. [2024-10-11 04:50:52,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10536 states, 10534 states have (on average 1.4604138978545662) internal successors, (15384), 10535 states have internal predecessors, (15384), 0 states have call successors, (0), 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 04:50:52,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10536 states to 10536 states and 15384 transitions. [2024-10-11 04:50:52,587 INFO L78 Accepts]: Start accepts. Automaton has 10536 states and 15384 transitions. Word has length 73 [2024-10-11 04:50:52,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:52,587 INFO L471 AbstractCegarLoop]: Abstraction has 10536 states and 15384 transitions. [2024-10-11 04:50:52,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:50:52,588 INFO L276 IsEmpty]: Start isEmpty. Operand 10536 states and 15384 transitions. [2024-10-11 04:50:52,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-11 04:50:52,589 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:52,589 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:50:52,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 04:50:52,589 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:52,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:52,590 INFO L85 PathProgramCache]: Analyzing trace with hash -568417134, now seen corresponding path program 1 times [2024-10-11 04:50:52,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:52,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887445426] [2024-10-11 04:50:52,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:52,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:52,688 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 04:50:52,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:52,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887445426] [2024-10-11 04:50:52,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887445426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:52,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:52,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:50:52,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036752562] [2024-10-11 04:50:52,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:52,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:50:52,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:52,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:50:52,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:50:52,690 INFO L87 Difference]: Start difference. First operand 10536 states and 15384 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:50:53,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:53,125 INFO L93 Difference]: Finished difference Result 23732 states and 34558 transitions. [2024-10-11 04:50:53,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:50:53,126 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-10-11 04:50:53,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:53,154 INFO L225 Difference]: With dead ends: 23732 [2024-10-11 04:50:53,155 INFO L226 Difference]: Without dead ends: 20930 [2024-10-11 04:50:53,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:50:53,159 INFO L432 NwaCegarLoop]: 1594 mSDtfsCounter, 6381 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6381 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:50:53,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6381 Valid, 3555 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:50:53,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20930 states. [2024-10-11 04:50:53,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20930 to 13336. [2024-10-11 04:50:53,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13336 states, 13334 states have (on average 1.4549272536373181) internal successors, (19400), 13335 states have internal predecessors, (19400), 0 states have call successors, (0), 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 04:50:53,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13336 states to 13336 states and 19400 transitions. [2024-10-11 04:50:53,472 INFO L78 Accepts]: Start accepts. Automaton has 13336 states and 19400 transitions. Word has length 73 [2024-10-11 04:50:53,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:53,472 INFO L471 AbstractCegarLoop]: Abstraction has 13336 states and 19400 transitions. [2024-10-11 04:50:53,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:50:53,473 INFO L276 IsEmpty]: Start isEmpty. Operand 13336 states and 19400 transitions. [2024-10-11 04:50:53,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-11 04:50:53,474 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:53,474 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:50:53,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 04:50:53,475 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:53,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:53,475 INFO L85 PathProgramCache]: Analyzing trace with hash 320316306, now seen corresponding path program 1 times [2024-10-11 04:50:53,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:53,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690805160] [2024-10-11 04:50:53,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:53,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:53,577 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 04:50:53,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:53,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690805160] [2024-10-11 04:50:53,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690805160] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:53,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:53,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:50:53,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474182422] [2024-10-11 04:50:53,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:53,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:50:53,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:53,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:50:53,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:50:53,579 INFO L87 Difference]: Start difference. First operand 13336 states and 19400 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:50:53,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:53,981 INFO L93 Difference]: Finished difference Result 26532 states and 38574 transitions. [2024-10-11 04:50:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:50:53,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-10-11 04:50:53,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:54,018 INFO L225 Difference]: With dead ends: 26532 [2024-10-11 04:50:54,019 INFO L226 Difference]: Without dead ends: 23730 [2024-10-11 04:50:54,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:50:54,032 INFO L432 NwaCegarLoop]: 1594 mSDtfsCounter, 6341 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6341 SdHoareTripleChecker+Valid, 3577 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:50:54,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6341 Valid, 3577 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:50:54,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23730 states. [2024-10-11 04:50:54,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23730 to 16136. [2024-10-11 04:50:54,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16136 states, 16134 states have (on average 1.4513449857443907) internal successors, (23416), 16135 states have internal predecessors, (23416), 0 states have call successors, (0), 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 04:50:54,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16136 states to 16136 states and 23416 transitions. [2024-10-11 04:50:54,664 INFO L78 Accepts]: Start accepts. Automaton has 16136 states and 23416 transitions. Word has length 73 [2024-10-11 04:50:54,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:54,665 INFO L471 AbstractCegarLoop]: Abstraction has 16136 states and 23416 transitions. [2024-10-11 04:50:54,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:50:54,665 INFO L276 IsEmpty]: Start isEmpty. Operand 16136 states and 23416 transitions. [2024-10-11 04:50:54,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-11 04:50:54,667 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:54,667 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:50:54,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 04:50:54,667 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:54,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:54,668 INFO L85 PathProgramCache]: Analyzing trace with hash 17294994, now seen corresponding path program 1 times [2024-10-11 04:50:54,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:54,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047215870] [2024-10-11 04:50:54,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:54,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:54,805 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 04:50:54,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:54,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047215870] [2024-10-11 04:50:54,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047215870] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:54,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:54,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 04:50:54,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977180796] [2024-10-11 04:50:54,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:54,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 04:50:54,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:54,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 04:50:54,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 04:50:54,807 INFO L87 Difference]: Start difference. First operand 16136 states and 23416 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 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 04:50:55,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:55,457 INFO L93 Difference]: Finished difference Result 29332 states and 42590 transitions. [2024-10-11 04:50:55,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 04:50:55,458 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-10-11 04:50:55,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:55,504 INFO L225 Difference]: With dead ends: 29332 [2024-10-11 04:50:55,504 INFO L226 Difference]: Without dead ends: 26530 [2024-10-11 04:50:55,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-11 04:50:55,517 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 6295 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6295 SdHoareTripleChecker+Valid, 3651 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:50:55,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6295 Valid, 3651 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:50:55,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26530 states. [2024-10-11 04:50:56,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26530 to 18936. [2024-10-11 04:50:56,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18936 states, 18934 states have (on average 1.4488222245695574) internal successors, (27432), 18935 states have internal predecessors, (27432), 0 states have call successors, (0), 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 04:50:56,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18936 states to 18936 states and 27432 transitions. [2024-10-11 04:50:56,245 INFO L78 Accepts]: Start accepts. Automaton has 18936 states and 27432 transitions. Word has length 73 [2024-10-11 04:50:56,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:56,246 INFO L471 AbstractCegarLoop]: Abstraction has 18936 states and 27432 transitions. [2024-10-11 04:50:56,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 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 04:50:56,246 INFO L276 IsEmpty]: Start isEmpty. Operand 18936 states and 27432 transitions. [2024-10-11 04:50:56,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-11 04:50:56,247 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:56,247 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:50:56,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 04:50:56,248 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:56,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:56,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1436271534, now seen corresponding path program 1 times [2024-10-11 04:50:56,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:56,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054747463] [2024-10-11 04:50:56,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:56,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:56,341 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:50:56,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:56,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054747463] [2024-10-11 04:50:56,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054747463] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:56,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:56,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:50:56,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351835017] [2024-10-11 04:50:56,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:56,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:50:56,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:56,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:50:56,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:50:56,342 INFO L87 Difference]: Start difference. First operand 18936 states and 27432 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 04:50:56,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:56,645 INFO L93 Difference]: Finished difference Result 36332 states and 52410 transitions. [2024-10-11 04:50:56,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:50:56,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 04:50:56,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:56,672 INFO L225 Difference]: With dead ends: 36332 [2024-10-11 04:50:56,673 INFO L226 Difference]: Without dead ends: 18938 [2024-10-11 04:50:56,693 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 04:50:56,693 INFO L432 NwaCegarLoop]: 1571 mSDtfsCounter, 45 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:50:56,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3097 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:50:56,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18938 states. [2024-10-11 04:50:57,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18938 to 18936. [2024-10-11 04:50:57,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18936 states, 18934 states have (on average 1.433188972219288) internal successors, (27136), 18935 states have internal predecessors, (27136), 0 states have call successors, (0), 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 04:50:57,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18936 states to 18936 states and 27136 transitions. [2024-10-11 04:50:57,098 INFO L78 Accepts]: Start accepts. Automaton has 18936 states and 27136 transitions. Word has length 74 [2024-10-11 04:50:57,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:57,098 INFO L471 AbstractCegarLoop]: Abstraction has 18936 states and 27136 transitions. [2024-10-11 04:50:57,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 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 04:50:57,098 INFO L276 IsEmpty]: Start isEmpty. Operand 18936 states and 27136 transitions. [2024-10-11 04:50:57,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-11 04:50:57,100 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:57,100 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:50:57,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 04:50:57,101 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:57,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:57,101 INFO L85 PathProgramCache]: Analyzing trace with hash -702984806, now seen corresponding path program 1 times [2024-10-11 04:50:57,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:57,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676244454] [2024-10-11 04:50:57,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:57,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:57,315 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:50:57,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:57,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676244454] [2024-10-11 04:50:57,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676244454] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:57,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:57,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:50:57,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221319381] [2024-10-11 04:50:57,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:57,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:50:57,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:57,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:50:57,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:50:57,318 INFO L87 Difference]: Start difference. First operand 18936 states and 27136 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:50:57,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:57,461 INFO L93 Difference]: Finished difference Result 25406 states and 36413 transitions. [2024-10-11 04:50:57,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:50:57,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-10-11 04:50:57,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:57,472 INFO L225 Difference]: With dead ends: 25406 [2024-10-11 04:50:57,472 INFO L226 Difference]: Without dead ends: 8012 [2024-10-11 04:50:57,487 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 04:50:57,488 INFO L432 NwaCegarLoop]: 1569 mSDtfsCounter, 39 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3094 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:50:57,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3094 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:50:57,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8012 states. [2024-10-11 04:50:57,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8012 to 8005. [2024-10-11 04:50:57,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8005 states, 8003 states have (on average 1.4520804698238161) internal successors, (11621), 8004 states have internal predecessors, (11621), 0 states have call successors, (0), 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 04:50:57,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8005 states to 8005 states and 11621 transitions. [2024-10-11 04:50:57,632 INFO L78 Accepts]: Start accepts. Automaton has 8005 states and 11621 transitions. Word has length 75 [2024-10-11 04:50:57,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:57,632 INFO L471 AbstractCegarLoop]: Abstraction has 8005 states and 11621 transitions. [2024-10-11 04:50:57,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:50:57,632 INFO L276 IsEmpty]: Start isEmpty. Operand 8005 states and 11621 transitions. [2024-10-11 04:50:57,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 04:50:57,633 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:57,633 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:50:57,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 04:50:57,634 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:57,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:57,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1790502652, now seen corresponding path program 1 times [2024-10-11 04:50:57,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:57,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37606804] [2024-10-11 04:50:57,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:57,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:57,696 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:50:57,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:57,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37606804] [2024-10-11 04:50:57,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37606804] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:57,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:57,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:50:57,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492318070] [2024-10-11 04:50:57,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:57,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:50:57,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:57,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:50:57,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:50:57,698 INFO L87 Difference]: Start difference. First operand 8005 states and 11621 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 04:50:57,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:57,771 INFO L93 Difference]: Finished difference Result 11233 states and 16199 transitions. [2024-10-11 04:50:57,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:50:57,771 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 04:50:57,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:57,780 INFO L225 Difference]: With dead ends: 11233 [2024-10-11 04:50:57,780 INFO L226 Difference]: Without dead ends: 4783 [2024-10-11 04:50:57,786 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 04:50:57,786 INFO L432 NwaCegarLoop]: 1563 mSDtfsCounter, 41 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:50:57,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3073 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:50:57,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4783 states. [2024-10-11 04:50:57,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4783 to 4781. [2024-10-11 04:50:57,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4781 states, 4779 states have (on average 1.463276836158192) internal successors, (6993), 4780 states have internal predecessors, (6993), 0 states have call successors, (0), 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 04:50:57,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4781 states to 4781 states and 6993 transitions. [2024-10-11 04:50:57,863 INFO L78 Accepts]: Start accepts. Automaton has 4781 states and 6993 transitions. Word has length 76 [2024-10-11 04:50:57,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:57,863 INFO L471 AbstractCegarLoop]: Abstraction has 4781 states and 6993 transitions. [2024-10-11 04:50:57,863 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 04:50:57,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4781 states and 6993 transitions. [2024-10-11 04:50:57,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 04:50:57,864 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:57,864 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:50:57,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 04:50:57,865 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:57,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:57,865 INFO L85 PathProgramCache]: Analyzing trace with hash -626519094, now seen corresponding path program 1 times [2024-10-11 04:50:57,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:57,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868432939] [2024-10-11 04:50:57,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:57,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:57,936 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:50:57,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:57,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868432939] [2024-10-11 04:50:57,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868432939] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:57,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:57,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:50:57,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551868526] [2024-10-11 04:50:57,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:57,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:50:57,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:57,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:50:57,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:50:57,938 INFO L87 Difference]: Start difference. First operand 4781 states and 6993 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 04:50:57,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:57,983 INFO L93 Difference]: Finished difference Result 6397 states and 9257 transitions. [2024-10-11 04:50:57,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:50:57,984 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 04:50:57,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:57,989 INFO L225 Difference]: With dead ends: 6397 [2024-10-11 04:50:57,990 INFO L226 Difference]: Without dead ends: 3171 [2024-10-11 04:50:57,993 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 04:50:57,995 INFO L432 NwaCegarLoop]: 1556 mSDtfsCounter, 38 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:50:57,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3058 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:50:57,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3171 states. [2024-10-11 04:50:58,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3171 to 3169. [2024-10-11 04:50:58,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3169 states, 3167 states have (on average 1.4856330912535523) internal successors, (4705), 3168 states have internal predecessors, (4705), 0 states have call successors, (0), 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 04:50:58,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3169 states to 3169 states and 4705 transitions. [2024-10-11 04:50:58,044 INFO L78 Accepts]: Start accepts. Automaton has 3169 states and 4705 transitions. Word has length 78 [2024-10-11 04:50:58,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:58,044 INFO L471 AbstractCegarLoop]: Abstraction has 3169 states and 4705 transitions. [2024-10-11 04:50:58,044 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 04:50:58,044 INFO L276 IsEmpty]: Start isEmpty. Operand 3169 states and 4705 transitions. [2024-10-11 04:50:58,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-11 04:50:58,045 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:58,045 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:50:58,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 04:50:58,046 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:58,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:58,046 INFO L85 PathProgramCache]: Analyzing trace with hash 439495192, now seen corresponding path program 1 times [2024-10-11 04:50:58,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:58,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852551771] [2024-10-11 04:50:58,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:58,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:58,125 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:50:58,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:58,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852551771] [2024-10-11 04:50:58,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852551771] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:50:58,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:50:58,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:50:58,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735500555] [2024-10-11 04:50:58,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:50:58,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:50:58,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:58,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:50:58,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:50:58,127 INFO L87 Difference]: Start difference. First operand 3169 states and 4705 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:50:58,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:50:58,161 INFO L93 Difference]: Finished difference Result 3979 states and 5825 transitions. [2024-10-11 04:50:58,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:50:58,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-11 04:50:58,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:50:58,166 INFO L225 Difference]: With dead ends: 3979 [2024-10-11 04:50:58,166 INFO L226 Difference]: Without dead ends: 2365 [2024-10-11 04:50:58,168 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 04:50:58,169 INFO L432 NwaCegarLoop]: 1549 mSDtfsCounter, 35 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:50:58,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3043 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:50:58,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2024-10-11 04:50:58,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 2363. [2024-10-11 04:50:58,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2361 states have (on average 1.513765353663702) internal successors, (3574), 2362 states have internal predecessors, (3574), 0 states have call successors, (0), 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 04:50:58,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3574 transitions. [2024-10-11 04:50:58,201 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3574 transitions. Word has length 80 [2024-10-11 04:50:58,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:50:58,202 INFO L471 AbstractCegarLoop]: Abstraction has 2363 states and 3574 transitions. [2024-10-11 04:50:58,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:50:58,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3574 transitions. [2024-10-11 04:50:58,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 04:50:58,203 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:50:58,203 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:50:58,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 04:50:58,203 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:50:58,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:50:58,204 INFO L85 PathProgramCache]: Analyzing trace with hash 397937126, now seen corresponding path program 1 times [2024-10-11 04:50:58,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:50:58,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033497821] [2024-10-11 04:50:58,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:58,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:50:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:58,464 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:50:58,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:50:58,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033497821] [2024-10-11 04:50:58,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033497821] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:50:58,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319501649] [2024-10-11 04:50:58,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:50:58,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:50:58,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:50:58,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:50:58,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 04:50:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:50:58,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 04:50:58,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:50:58,798 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 04:50:58,799 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:50:59,048 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 04:50:59,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319501649] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:50:59,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:50:59,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 4] total 15 [2024-10-11 04:50:59,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924493954] [2024-10-11 04:50:59,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:50:59,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 04:50:59,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:50:59,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 04:50:59,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-10-11 04:50:59,051 INFO L87 Difference]: Start difference. First operand 2363 states and 3574 transitions. Second operand has 15 states, 15 states have (on average 15.466666666666667) internal successors, (232), 15 states have internal predecessors, (232), 0 states have call successors, (0), 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 04:51:00,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:51:00,258 INFO L93 Difference]: Finished difference Result 7478 states and 10430 transitions. [2024-10-11 04:51:00,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-11 04:51:00,259 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 15.466666666666667) internal successors, (232), 15 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-11 04:51:00,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:51:00,267 INFO L225 Difference]: With dead ends: 7478 [2024-10-11 04:51:00,267 INFO L226 Difference]: Without dead ends: 6670 [2024-10-11 04:51:00,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=462, Invalid=1608, Unknown=0, NotChecked=0, Total=2070 [2024-10-11 04:51:00,269 INFO L432 NwaCegarLoop]: 1514 mSDtfsCounter, 11780 mSDsluCounter, 6300 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11780 SdHoareTripleChecker+Valid, 7814 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 04:51:00,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11780 Valid, 7814 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 04:51:00,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6670 states. [2024-10-11 04:51:00,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6670 to 6522. [2024-10-11 04:51:00,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6522 states, 6520 states have (on average 1.3668711656441719) internal successors, (8912), 6521 states have internal predecessors, (8912), 0 states have call successors, (0), 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 04:51:00,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6522 states to 6522 states and 8912 transitions. [2024-10-11 04:51:00,410 INFO L78 Accepts]: Start accepts. Automaton has 6522 states and 8912 transitions. Word has length 82 [2024-10-11 04:51:00,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:51:00,410 INFO L471 AbstractCegarLoop]: Abstraction has 6522 states and 8912 transitions. [2024-10-11 04:51:00,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 15.466666666666667) internal successors, (232), 15 states have internal predecessors, (232), 0 states have call successors, (0), 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 04:51:00,410 INFO L276 IsEmpty]: Start isEmpty. Operand 6522 states and 8912 transitions. [2024-10-11 04:51:00,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-11 04:51:00,411 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:51:00,411 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:51:00,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 04:51:00,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-11 04:51:00,612 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:51:00,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:51:00,613 INFO L85 PathProgramCache]: Analyzing trace with hash 577648048, now seen corresponding path program 1 times [2024-10-11 04:51:00,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:51:00,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140773727] [2024-10-11 04:51:00,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:51:00,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:51:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:51:00,880 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:51:00,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:51:00,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140773727] [2024-10-11 04:51:00,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140773727] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:51:00,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661950490] [2024-10-11 04:51:00,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:51:00,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:51:00,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:51:00,885 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:51:00,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 04:51:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:51:00,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-11 04:51:00,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:51:01,549 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:51:01,549 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:51:02,463 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:51:02,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661950490] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:51:02,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:51:02,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 30 [2024-10-11 04:51:02,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305480471] [2024-10-11 04:51:02,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:51:02,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-11 04:51:02,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:51:02,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-11 04:51:02,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=706, Unknown=0, NotChecked=0, Total=870 [2024-10-11 04:51:02,465 INFO L87 Difference]: Start difference. First operand 6522 states and 8912 transitions. Second operand has 30 states, 30 states have (on average 7.233333333333333) internal successors, (217), 30 states have internal predecessors, (217), 0 states have call successors, (0), 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 04:51:03,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:51:03,370 INFO L93 Difference]: Finished difference Result 16502 states and 21949 transitions. [2024-10-11 04:51:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 04:51:03,370 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 7.233333333333333) internal successors, (217), 30 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-10-11 04:51:03,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:51:03,383 INFO L225 Difference]: With dead ends: 16502 [2024-10-11 04:51:03,383 INFO L226 Difference]: Without dead ends: 11753 [2024-10-11 04:51:03,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=468, Invalid=1512, Unknown=0, NotChecked=0, Total=1980 [2024-10-11 04:51:03,387 INFO L432 NwaCegarLoop]: 1508 mSDtfsCounter, 10683 mSDsluCounter, 7809 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10683 SdHoareTripleChecker+Valid, 9317 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 04:51:03,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10683 Valid, 9317 Invalid, 600 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 04:51:03,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11753 states. [2024-10-11 04:51:03,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11753 to 11601. [2024-10-11 04:51:03,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11601 states, 11599 states have (on average 1.3220967324769377) internal successors, (15335), 11600 states have internal predecessors, (15335), 0 states have call successors, (0), 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 04:51:03,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11601 states to 11601 states and 15335 transitions. [2024-10-11 04:51:03,658 INFO L78 Accepts]: Start accepts. Automaton has 11601 states and 15335 transitions. Word has length 83 [2024-10-11 04:51:03,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:51:03,658 INFO L471 AbstractCegarLoop]: Abstraction has 11601 states and 15335 transitions. [2024-10-11 04:51:03,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 7.233333333333333) internal successors, (217), 30 states have internal predecessors, (217), 0 states have call successors, (0), 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 04:51:03,660 INFO L276 IsEmpty]: Start isEmpty. Operand 11601 states and 15335 transitions. [2024-10-11 04:51:03,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-11 04:51:03,662 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:51:03,662 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 04:51:03,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 04:51:03,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:51:03,864 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:51:03,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:51:03,864 INFO L85 PathProgramCache]: Analyzing trace with hash -900611408, now seen corresponding path program 1 times [2024-10-11 04:51:03,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:51:03,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310783681] [2024-10-11 04:51:03,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:51:03,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:51:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:51:04,756 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:51:04,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:51:04,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310783681] [2024-10-11 04:51:04,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310783681] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:51:04,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994103751] [2024-10-11 04:51:04,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:51:04,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:51:04,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:51:04,759 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:51:04,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 04:51:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:51:04,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 04:51:04,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:51:05,293 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:51:05,293 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:51:06,243 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:51:06,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994103751] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:51:06,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:51:06,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-10-11 04:51:06,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688432138] [2024-10-11 04:51:06,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:51:06,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-11 04:51:06,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:51:06,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-11 04:51:06,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=711, Unknown=0, NotChecked=0, Total=812 [2024-10-11 04:51:06,245 INFO L87 Difference]: Start difference. First operand 11601 states and 15335 transitions. Second operand has 29 states, 29 states have (on average 8.03448275862069) internal successors, (233), 28 states have internal predecessors, (233), 0 states have call successors, (0), 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 04:51:09,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:51:09,277 INFO L93 Difference]: Finished difference Result 45608 states and 59834 transitions. [2024-10-11 04:51:09,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-11 04:51:09,277 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 8.03448275862069) internal successors, (233), 28 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-10-11 04:51:09,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:51:09,326 INFO L225 Difference]: With dead ends: 45608 [2024-10-11 04:51:09,326 INFO L226 Difference]: Without dead ends: 35955 [2024-10-11 04:51:09,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=826, Invalid=2956, Unknown=0, NotChecked=0, Total=3782 [2024-10-11 04:51:09,347 INFO L432 NwaCegarLoop]: 1506 mSDtfsCounter, 20924 mSDsluCounter, 9451 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20924 SdHoareTripleChecker+Valid, 10957 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 04:51:09,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20924 Valid, 10957 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 04:51:09,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35955 states. [2024-10-11 04:51:10,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35955 to 35655. [2024-10-11 04:51:10,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35655 states, 35653 states have (on average 1.285305584382801) internal successors, (45825), 35654 states have internal predecessors, (45825), 0 states have call successors, (0), 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 04:51:10,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35655 states to 35655 states and 45825 transitions. [2024-10-11 04:51:10,488 INFO L78 Accepts]: Start accepts. Automaton has 35655 states and 45825 transitions. Word has length 83 [2024-10-11 04:51:10,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:51:10,488 INFO L471 AbstractCegarLoop]: Abstraction has 35655 states and 45825 transitions. [2024-10-11 04:51:10,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.03448275862069) internal successors, (233), 28 states have internal predecessors, (233), 0 states have call successors, (0), 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 04:51:10,489 INFO L276 IsEmpty]: Start isEmpty. Operand 35655 states and 45825 transitions. [2024-10-11 04:51:10,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-11 04:51:10,490 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:51:10,491 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:51:10,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 04:51:10,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:51:10,692 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:51:10,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:51:10,692 INFO L85 PathProgramCache]: Analyzing trace with hash -235971648, now seen corresponding path program 1 times [2024-10-11 04:51:10,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:51:10,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951370565] [2024-10-11 04:51:10,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:51:10,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:51:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:51:11,024 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:51:11,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:51:11,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951370565] [2024-10-11 04:51:11,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951370565] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:51:11,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610589886] [2024-10-11 04:51:11,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:51:11,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:51:11,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:51:11,027 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:51:11,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 04:51:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:51:11,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-11 04:51:11,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:51:11,641 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:51:11,641 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:51:12,636 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:51:12,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610589886] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:51:12,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:51:12,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 29 [2024-10-11 04:51:12,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031397493] [2024-10-11 04:51:12,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:51:12,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-11 04:51:12,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:51:12,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-11 04:51:12,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=666, Unknown=0, NotChecked=0, Total=812 [2024-10-11 04:51:12,639 INFO L87 Difference]: Start difference. First operand 35655 states and 45825 transitions. Second operand has 29 states, 29 states have (on average 8.206896551724139) internal successors, (238), 29 states have internal predecessors, (238), 0 states have call successors, (0), 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 04:51:14,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:51:14,393 INFO L93 Difference]: Finished difference Result 93631 states and 119620 transitions. [2024-10-11 04:51:14,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 04:51:14,393 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 8.206896551724139) internal successors, (238), 29 states have internal predecessors, (238), 0 states have call successors, (0), 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 85 [2024-10-11 04:51:14,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:51:14,471 INFO L225 Difference]: With dead ends: 93631 [2024-10-11 04:51:14,472 INFO L226 Difference]: Without dead ends: 64487 [2024-10-11 04:51:14,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=441, Invalid=1451, Unknown=0, NotChecked=0, Total=1892 [2024-10-11 04:51:14,500 INFO L432 NwaCegarLoop]: 1514 mSDtfsCounter, 9378 mSDsluCounter, 6526 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9378 SdHoareTripleChecker+Valid, 8040 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 04:51:14,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9378 Valid, 8040 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 04:51:14,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64487 states. [2024-10-11 04:51:16,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64487 to 54643. [2024-10-11 04:51:16,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54643 states, 54641 states have (on average 1.273036730660127) internal successors, (69560), 54642 states have internal predecessors, (69560), 0 states have call successors, (0), 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 04:51:16,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54643 states to 54643 states and 69560 transitions. [2024-10-11 04:51:16,142 INFO L78 Accepts]: Start accepts. Automaton has 54643 states and 69560 transitions. Word has length 85 [2024-10-11 04:51:16,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:51:16,143 INFO L471 AbstractCegarLoop]: Abstraction has 54643 states and 69560 transitions. [2024-10-11 04:51:16,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.206896551724139) internal successors, (238), 29 states have internal predecessors, (238), 0 states have call successors, (0), 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 04:51:16,143 INFO L276 IsEmpty]: Start isEmpty. Operand 54643 states and 69560 transitions. [2024-10-11 04:51:16,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-11 04:51:16,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:51:16,145 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:51:16,163 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 04:51:16,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-11 04:51:16,346 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:51:16,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:51:16,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1124486412, now seen corresponding path program 1 times [2024-10-11 04:51:16,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:51:16,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317658137] [2024-10-11 04:51:16,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:51:16,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:51:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:51:16,585 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:51:16,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:51:16,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317658137] [2024-10-11 04:51:16,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317658137] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:51:16,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024762434] [2024-10-11 04:51:16,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:51:16,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:51:16,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:51:16,587 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:51:16,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 04:51:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:51:16,695 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 04:51:16,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:51:16,994 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:51:16,995 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:51:17,788 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:51:17,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024762434] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:51:17,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:51:17,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-10-11 04:51:17,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419557898] [2024-10-11 04:51:17,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:51:17,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-11 04:51:17,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:51:17,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-11 04:51:17,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-10-11 04:51:17,791 INFO L87 Difference]: Start difference. First operand 54643 states and 69560 transitions. Second operand has 22 states, 22 states have (on average 8.363636363636363) internal successors, (184), 21 states have internal predecessors, (184), 0 states have call successors, (0), 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 04:51:21,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:51:21,209 INFO L93 Difference]: Finished difference Result 154848 states and 196874 transitions. [2024-10-11 04:51:21,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 04:51:21,210 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.363636363636363) internal successors, (184), 21 states have internal predecessors, (184), 0 states have call successors, (0), 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 85 [2024-10-11 04:51:21,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:51:21,415 INFO L225 Difference]: With dead ends: 154848 [2024-10-11 04:51:21,415 INFO L226 Difference]: Without dead ends: 106180 [2024-10-11 04:51:21,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2024-10-11 04:51:21,458 INFO L432 NwaCegarLoop]: 1529 mSDtfsCounter, 13824 mSDsluCounter, 4806 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13824 SdHoareTripleChecker+Valid, 6335 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 04:51:21,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13824 Valid, 6335 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 04:51:21,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106180 states. [2024-10-11 04:51:25,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106180 to 104892. [2024-10-11 04:51:25,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104892 states, 104890 states have (on average 1.2521117361044904) internal successors, (131334), 104891 states have internal predecessors, (131334), 0 states have call successors, (0), 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 04:51:25,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104892 states to 104892 states and 131334 transitions. [2024-10-11 04:51:25,441 INFO L78 Accepts]: Start accepts. Automaton has 104892 states and 131334 transitions. Word has length 85 [2024-10-11 04:51:25,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:51:25,441 INFO L471 AbstractCegarLoop]: Abstraction has 104892 states and 131334 transitions. [2024-10-11 04:51:25,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.363636363636363) internal successors, (184), 21 states have internal predecessors, (184), 0 states have call successors, (0), 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 04:51:25,442 INFO L276 IsEmpty]: Start isEmpty. Operand 104892 states and 131334 transitions. [2024-10-11 04:51:25,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:51:25,445 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:51:25,445 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:51:25,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 04:51:25,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-11 04:51:25,650 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:51:25,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:51:25,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1688504568, now seen corresponding path program 1 times [2024-10-11 04:51:25,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:51:25,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800564117] [2024-10-11 04:51:25,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:51:25,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:51:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:51:26,838 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:51:26,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:51:26,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800564117] [2024-10-11 04:51:26,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800564117] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:51:26,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886067271] [2024-10-11 04:51:26,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:51:26,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:51:26,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:51:26,841 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:51:26,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 04:51:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:51:26,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-10-11 04:51:26,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:51:32,240 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:51:32,240 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:51:38,889 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:51:38,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886067271] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:51:38,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:51:38,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 29, 31] total 66 [2024-10-11 04:51:38,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535523309] [2024-10-11 04:51:38,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:51:38,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-10-11 04:51:38,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:51:38,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-10-11 04:51:38,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=536, Invalid=3754, Unknown=0, NotChecked=0, Total=4290 [2024-10-11 04:51:38,892 INFO L87 Difference]: Start difference. First operand 104892 states and 131334 transitions. Second operand has 66 states, 66 states have (on average 3.621212121212121) internal successors, (239), 66 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)