./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ac9738018cdb6c628ad42533cfecc5c9af778919d271278199945a85d10a362 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 03:38:37,483 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 03:38:37,524 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 03:38:37,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 03:38:37,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 03:38:37,544 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 03:38:37,544 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 03:38:37,545 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 03:38:37,545 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 03:38:37,545 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 03:38:37,546 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 03:38:37,546 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 03:38:37,549 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 03:38:37,551 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 03:38:37,551 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 03:38:37,552 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 03:38:37,552 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 03:38:37,554 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 03:38:37,554 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 03:38:37,554 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 03:38:37,554 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 03:38:37,555 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 03:38:37,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 03:38:37,555 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 03:38:37,555 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 03:38:37,555 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 03:38:37,556 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 03:38:37,556 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 03:38:37,556 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 03:38:37,556 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 03:38:37,556 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 03:38:37,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 03:38:37,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:38:37,557 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 03:38:37,557 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 03:38:37,558 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 03:38:37,558 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 03:38:37,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 03:38:37,559 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 03:38:37,559 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 03:38:37,559 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 03:38:37,560 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 03:38:37,560 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ac9738018cdb6c628ad42533cfecc5c9af778919d271278199945a85d10a362 [2024-10-11 03:38:37,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 03:38:37,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 03:38:37,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 03:38:37,800 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 03:38:37,801 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 03:38:37,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-10-11 03:38:39,137 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 03:38:39,312 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 03:38:39,313 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-10-11 03:38:39,321 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8e50de57e/7824b29b60824900935fb494b1e4a704/FLAG1c4109f4e [2024-10-11 03:38:39,696 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8e50de57e/7824b29b60824900935fb494b1e4a704 [2024-10-11 03:38:39,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 03:38:39,701 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 03:38:39,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 03:38:39,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 03:38:39,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 03:38:39,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:38:39" (1/1) ... [2024-10-11 03:38:39,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bf814ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:38:39, skipping insertion in model container [2024-10-11 03:38:39,710 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:38:39" (1/1) ... [2024-10-11 03:38:39,735 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 03:38:39,950 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[4411,4424] [2024-10-11 03:38:39,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:38:39,980 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 03:38:40,004 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[4411,4424] [2024-10-11 03:38:40,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 03:38:40,039 INFO L204 MainTranslator]: Completed translation [2024-10-11 03:38:40,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:38:40 WrapperNode [2024-10-11 03:38:40,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 03:38:40,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 03:38:40,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 03:38:40,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 03:38:40,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:38:40" (1/1) ... [2024-10-11 03:38:40,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:38:40" (1/1) ... [2024-10-11 03:38:40,099 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 362 [2024-10-11 03:38:40,103 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 03:38:40,104 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 03:38:40,104 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 03:38:40,104 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 03:38:40,113 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:38:40" (1/1) ... [2024-10-11 03:38:40,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:38:40" (1/1) ... [2024-10-11 03:38:40,120 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:38:40" (1/1) ... [2024-10-11 03:38:40,134 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 03:38:40,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:38:40" (1/1) ... [2024-10-11 03:38:40,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:38:40" (1/1) ... [2024-10-11 03:38:40,142 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:38:40" (1/1) ... [2024-10-11 03:38:40,148 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:38:40" (1/1) ... [2024-10-11 03:38:40,151 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:38:40" (1/1) ... [2024-10-11 03:38:40,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:38:40" (1/1) ... [2024-10-11 03:38:40,157 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 03:38:40,157 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 03:38:40,157 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 03:38:40,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 03:38:40,158 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:38:40" (1/1) ... [2024-10-11 03:38:40,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 03:38:40,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:38:40,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 03:38:40,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 03:38:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 03:38:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 03:38:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 03:38:40,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 03:38:40,323 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 03:38:40,325 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 03:38:40,643 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2024-10-11 03:38:40,643 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 03:38:40,681 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 03:38:40,681 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 03:38:40,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:38:40 BoogieIcfgContainer [2024-10-11 03:38:40,682 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 03:38:40,683 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 03:38:40,683 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 03:38:40,686 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 03:38:40,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:38:39" (1/3) ... [2024-10-11 03:38:40,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b252627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:38:40, skipping insertion in model container [2024-10-11 03:38:40,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:38:40" (2/3) ... [2024-10-11 03:38:40,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b252627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:38:40, skipping insertion in model container [2024-10-11 03:38:40,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:38:40" (3/3) ... [2024-10-11 03:38:40,688 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-10-11 03:38:40,701 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 03:38:40,701 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 03:38:40,763 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 03:38:40,769 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;@1d740063, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 03:38:40,773 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 03:38:40,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 83 states have (on average 1.6867469879518073) internal successors, (140), 84 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:40,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-11 03:38:40,784 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:38:40,786 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] [2024-10-11 03:38:40,786 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:38:40,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:38:40,790 INFO L85 PathProgramCache]: Analyzing trace with hash 2074678528, now seen corresponding path program 1 times [2024-10-11 03:38:40,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:38:40,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636170780] [2024-10-11 03:38:40,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:40,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:38:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:41,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:38:41,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:38:41,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636170780] [2024-10-11 03:38:41,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636170780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:38:41,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:38:41,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:38:41,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137277240] [2024-10-11 03:38:41,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:38:41,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:38:41,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:38:41,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:38:41,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:38:41,179 INFO L87 Difference]: Start difference. First operand has 85 states, 83 states have (on average 1.6867469879518073) internal successors, (140), 84 states have internal predecessors, (140), 0 states have call successors, (0), 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 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:41,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:38:41,242 INFO L93 Difference]: Finished difference Result 201 states and 320 transitions. [2024-10-11 03:38:41,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:38:41,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2024-10-11 03:38:41,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:38:41,252 INFO L225 Difference]: With dead ends: 201 [2024-10-11 03:38:41,253 INFO L226 Difference]: Without dead ends: 131 [2024-10-11 03:38:41,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:38:41,257 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 93 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 275 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 03:38:41,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 275 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:38:41,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-10-11 03:38:41,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2024-10-11 03:38:41,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.5078125) internal successors, (193), 128 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:41,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 193 transitions. [2024-10-11 03:38:41,289 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 193 transitions. Word has length 37 [2024-10-11 03:38:41,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:38:41,289 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 193 transitions. [2024-10-11 03:38:41,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:41,290 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 193 transitions. [2024-10-11 03:38:41,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-11 03:38:41,291 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:38:41,291 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] [2024-10-11 03:38:41,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 03:38:41,291 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:38:41,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:38:41,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1791063870, now seen corresponding path program 1 times [2024-10-11 03:38:41,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:38:41,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240658964] [2024-10-11 03:38:41,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:41,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:38:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:41,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:38:41,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:38:41,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240658964] [2024-10-11 03:38:41,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240658964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:38:41,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:38:41,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:38:41,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741740417] [2024-10-11 03:38:41,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:38:41,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:38:41,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:38:41,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:38:41,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:38:41,376 INFO L87 Difference]: Start difference. First operand 129 states and 193 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:41,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:38:41,409 INFO L93 Difference]: Finished difference Result 317 states and 489 transitions. [2024-10-11 03:38:41,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:38:41,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2024-10-11 03:38:41,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:38:41,415 INFO L225 Difference]: With dead ends: 317 [2024-10-11 03:38:41,415 INFO L226 Difference]: Without dead ends: 207 [2024-10-11 03:38:41,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:38:41,417 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 79 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:38:41,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 233 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:38:41,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-10-11 03:38:41,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2024-10-11 03:38:41,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.5294117647058822) internal successors, (312), 204 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:41,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 312 transitions. [2024-10-11 03:38:41,432 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 312 transitions. Word has length 38 [2024-10-11 03:38:41,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:38:41,433 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 312 transitions. [2024-10-11 03:38:41,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:41,433 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 312 transitions. [2024-10-11 03:38:41,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-11 03:38:41,434 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:38:41,434 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] [2024-10-11 03:38:41,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 03:38:41,435 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:38:41,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:38:41,435 INFO L85 PathProgramCache]: Analyzing trace with hash 71230663, now seen corresponding path program 1 times [2024-10-11 03:38:41,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:38:41,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825765814] [2024-10-11 03:38:41,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:41,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:38:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:41,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:38:41,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:38:41,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825765814] [2024-10-11 03:38:41,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825765814] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:38:41,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:38:41,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:38:41,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130250055] [2024-10-11 03:38:41,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:38:41,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:38:41,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:38:41,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:38:41,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:38:41,554 INFO L87 Difference]: Start difference. First operand 205 states and 312 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:41,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:38:41,650 INFO L93 Difference]: Finished difference Result 949 states and 1484 transitions. [2024-10-11 03:38:41,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:38:41,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2024-10-11 03:38:41,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:38:41,656 INFO L225 Difference]: With dead ends: 949 [2024-10-11 03:38:41,657 INFO L226 Difference]: Without dead ends: 763 [2024-10-11 03:38:41,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:38:41,659 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 501 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:38:41,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 674 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:38:41,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-10-11 03:38:41,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 389. [2024-10-11 03:38:41,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 388 states have (on average 1.5360824742268042) internal successors, (596), 388 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:41,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 596 transitions. [2024-10-11 03:38:41,684 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 596 transitions. Word has length 39 [2024-10-11 03:38:41,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:38:41,684 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 596 transitions. [2024-10-11 03:38:41,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:41,684 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 596 transitions. [2024-10-11 03:38:41,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-11 03:38:41,685 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:38:41,685 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 03:38:41,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 03:38:41,686 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:38:41,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:38:41,686 INFO L85 PathProgramCache]: Analyzing trace with hash -2106273057, now seen corresponding path program 1 times [2024-10-11 03:38:41,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:38:41,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647295803] [2024-10-11 03:38:41,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:41,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:38:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:41,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:38:41,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:38:41,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647295803] [2024-10-11 03:38:41,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647295803] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:38:41,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:38:41,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:38:41,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328659237] [2024-10-11 03:38:41,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:38:41,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:38:41,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:38:41,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:38:41,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:38:41,910 INFO L87 Difference]: Start difference. First operand 389 states and 596 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:41,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:38:41,968 INFO L93 Difference]: Finished difference Result 1347 states and 2079 transitions. [2024-10-11 03:38:41,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:38:41,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2024-10-11 03:38:41,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:38:41,972 INFO L225 Difference]: With dead ends: 1347 [2024-10-11 03:38:41,972 INFO L226 Difference]: Without dead ends: 977 [2024-10-11 03:38:41,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:38:41,976 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 253 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:38:41,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 438 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:38:41,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-10-11 03:38:42,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 973. [2024-10-11 03:38:42,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 972 states have (on average 1.5349794238683128) internal successors, (1492), 972 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:42,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1492 transitions. [2024-10-11 03:38:42,006 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1492 transitions. Word has length 40 [2024-10-11 03:38:42,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:38:42,007 INFO L471 AbstractCegarLoop]: Abstraction has 973 states and 1492 transitions. [2024-10-11 03:38:42,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:42,007 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1492 transitions. [2024-10-11 03:38:42,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-11 03:38:42,008 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:38:42,009 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] [2024-10-11 03:38:42,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 03:38:42,009 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:38:42,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:38:42,010 INFO L85 PathProgramCache]: Analyzing trace with hash -2092318921, now seen corresponding path program 1 times [2024-10-11 03:38:42,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:38:42,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217447672] [2024-10-11 03:38:42,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:42,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:38:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:42,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:38:42,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:38:42,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217447672] [2024-10-11 03:38:42,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217447672] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:38:42,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:38:42,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:38:42,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276753558] [2024-10-11 03:38:42,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:38:42,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:38:42,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:38:42,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:38:42,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:38:42,066 INFO L87 Difference]: Start difference. First operand 973 states and 1492 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:42,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:38:42,090 INFO L93 Difference]: Finished difference Result 2489 states and 3806 transitions. [2024-10-11 03:38:42,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:38:42,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2024-10-11 03:38:42,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:38:42,097 INFO L225 Difference]: With dead ends: 2489 [2024-10-11 03:38:42,097 INFO L226 Difference]: Without dead ends: 1535 [2024-10-11 03:38:42,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:38:42,101 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 86 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:38:42,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 273 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:38:42,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2024-10-11 03:38:42,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1533. [2024-10-11 03:38:42,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1532 states have (on average 1.5065274151436032) internal successors, (2308), 1532 states have internal predecessors, (2308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:42,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 2308 transitions. [2024-10-11 03:38:42,127 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 2308 transitions. Word has length 41 [2024-10-11 03:38:42,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:38:42,127 INFO L471 AbstractCegarLoop]: Abstraction has 1533 states and 2308 transitions. [2024-10-11 03:38:42,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:42,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 2308 transitions. [2024-10-11 03:38:42,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-11 03:38:42,129 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:38:42,130 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] [2024-10-11 03:38:42,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 03:38:42,130 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:38:42,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:38:42,133 INFO L85 PathProgramCache]: Analyzing trace with hash 841422888, now seen corresponding path program 1 times [2024-10-11 03:38:42,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:38:42,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117914973] [2024-10-11 03:38:42,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:42,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:38:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:42,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:38:42,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:38:42,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117914973] [2024-10-11 03:38:42,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117914973] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:38:42,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:38:42,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:38:42,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27968452] [2024-10-11 03:38:42,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:38:42,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:38:42,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:38:42,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:38:42,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:38:42,227 INFO L87 Difference]: Start difference. First operand 1533 states and 2308 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:42,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:38:42,492 INFO L93 Difference]: Finished difference Result 4561 states and 6886 transitions. [2024-10-11 03:38:42,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:38:42,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2024-10-11 03:38:42,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:38:42,500 INFO L225 Difference]: With dead ends: 4561 [2024-10-11 03:38:42,501 INFO L226 Difference]: Without dead ends: 3047 [2024-10-11 03:38:42,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:38:42,503 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 523 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:38:42,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 135 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:38:42,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3047 states. [2024-10-11 03:38:42,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3047 to 3045. [2024-10-11 03:38:42,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3045 states, 3044 states have (on average 1.4967148488830486) internal successors, (4556), 3044 states have internal predecessors, (4556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:42,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3045 states to 3045 states and 4556 transitions. [2024-10-11 03:38:42,545 INFO L78 Accepts]: Start accepts. Automaton has 3045 states and 4556 transitions. Word has length 42 [2024-10-11 03:38:42,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:38:42,545 INFO L471 AbstractCegarLoop]: Abstraction has 3045 states and 4556 transitions. [2024-10-11 03:38:42,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:42,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3045 states and 4556 transitions. [2024-10-11 03:38:42,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-11 03:38:42,546 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:38:42,546 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] [2024-10-11 03:38:42,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 03:38:42,547 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:38:42,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:38:42,547 INFO L85 PathProgramCache]: Analyzing trace with hash 27010893, now seen corresponding path program 1 times [2024-10-11 03:38:42,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:38:42,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123998460] [2024-10-11 03:38:42,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:42,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:38:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:42,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:38:42,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:38:42,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123998460] [2024-10-11 03:38:42,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123998460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:38:42,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:38:42,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:38:42,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031410214] [2024-10-11 03:38:42,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:38:42,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:38:42,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:38:42,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:38:42,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:38:42,747 INFO L87 Difference]: Start difference. First operand 3045 states and 4556 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:42,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:38:42,801 INFO L93 Difference]: Finished difference Result 3239 states and 4845 transitions. [2024-10-11 03:38:42,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:38:42,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2024-10-11 03:38:42,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:38:42,809 INFO L225 Difference]: With dead ends: 3239 [2024-10-11 03:38:42,809 INFO L226 Difference]: Without dead ends: 3237 [2024-10-11 03:38:42,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:38:42,811 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:38:42,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 457 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:38:42,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3237 states. [2024-10-11 03:38:42,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3237 to 3237. [2024-10-11 03:38:42,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3237 states, 3236 states have (on average 1.4672435105067985) internal successors, (4748), 3236 states have internal predecessors, (4748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:42,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 4748 transitions. [2024-10-11 03:38:42,855 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 4748 transitions. Word has length 42 [2024-10-11 03:38:42,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:38:42,856 INFO L471 AbstractCegarLoop]: Abstraction has 3237 states and 4748 transitions. [2024-10-11 03:38:42,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:42,856 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 4748 transitions. [2024-10-11 03:38:42,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-11 03:38:42,857 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:38:42,857 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] [2024-10-11 03:38:42,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 03:38:42,857 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:38:42,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:38:42,858 INFO L85 PathProgramCache]: Analyzing trace with hash 847910697, now seen corresponding path program 1 times [2024-10-11 03:38:42,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:38:42,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337319633] [2024-10-11 03:38:42,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:42,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:38:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:38:42,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:38:42,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337319633] [2024-10-11 03:38:42,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337319633] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:38:42,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:38:42,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:38:42,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715295744] [2024-10-11 03:38:42,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:38:42,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:38:42,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:38:42,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:38:42,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:38:42,914 INFO L87 Difference]: Start difference. First operand 3237 states and 4748 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:42,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:38:42,964 INFO L93 Difference]: Finished difference Result 7167 states and 10492 transitions. [2024-10-11 03:38:42,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:38:42,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2024-10-11 03:38:42,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:38:42,979 INFO L225 Difference]: With dead ends: 7167 [2024-10-11 03:38:42,979 INFO L226 Difference]: Without dead ends: 3949 [2024-10-11 03:38:42,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:38:42,987 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 66 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:38:42,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 212 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:38:42,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3949 states. [2024-10-11 03:38:43,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3949 to 3927. [2024-10-11 03:38:43,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3927 states, 3926 states have (on average 1.4523688232297505) internal successors, (5702), 3926 states have internal predecessors, (5702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:43,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3927 states to 3927 states and 5702 transitions. [2024-10-11 03:38:43,059 INFO L78 Accepts]: Start accepts. Automaton has 3927 states and 5702 transitions. Word has length 43 [2024-10-11 03:38:43,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:38:43,060 INFO L471 AbstractCegarLoop]: Abstraction has 3927 states and 5702 transitions. [2024-10-11 03:38:43,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:43,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3927 states and 5702 transitions. [2024-10-11 03:38:43,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 03:38:43,062 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:38:43,063 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] [2024-10-11 03:38:43,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 03:38:43,063 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:38:43,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:38:43,064 INFO L85 PathProgramCache]: Analyzing trace with hash 449838288, now seen corresponding path program 1 times [2024-10-11 03:38:43,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:38:43,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104539167] [2024-10-11 03:38:43,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:43,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:38:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:43,171 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:38:43,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:38:43,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104539167] [2024-10-11 03:38:43,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104539167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:38:43,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:38:43,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:38:43,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552324137] [2024-10-11 03:38:43,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:38:43,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:38:43,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:38:43,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:38:43,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:38:43,174 INFO L87 Difference]: Start difference. First operand 3927 states and 5702 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 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 03:38:43,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:38:43,216 INFO L93 Difference]: Finished difference Result 9068 states and 13162 transitions. [2024-10-11 03:38:43,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:38:43,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 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 03:38:43,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:38:43,232 INFO L225 Difference]: With dead ends: 9068 [2024-10-11 03:38:43,233 INFO L226 Difference]: Without dead ends: 6250 [2024-10-11 03:38:43,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:38:43,240 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 69 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:38:43,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 275 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:38:43,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6250 states. [2024-10-11 03:38:43,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6250 to 6248. [2024-10-11 03:38:43,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6248 states, 6247 states have (on average 1.4323675364174804) internal successors, (8948), 6247 states have internal predecessors, (8948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:43,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6248 states to 6248 states and 8948 transitions. [2024-10-11 03:38:43,331 INFO L78 Accepts]: Start accepts. Automaton has 6248 states and 8948 transitions. Word has length 62 [2024-10-11 03:38:43,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:38:43,332 INFO L471 AbstractCegarLoop]: Abstraction has 6248 states and 8948 transitions. [2024-10-11 03:38:43,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 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 03:38:43,333 INFO L276 IsEmpty]: Start isEmpty. Operand 6248 states and 8948 transitions. [2024-10-11 03:38:43,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 03:38:43,336 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:38:43,336 INFO L215 NwaCegarLoop]: trace histogram [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 03:38:43,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 03:38:43,336 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:38:43,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:38:43,337 INFO L85 PathProgramCache]: Analyzing trace with hash -666800049, now seen corresponding path program 1 times [2024-10-11 03:38:43,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:38:43,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269691686] [2024-10-11 03:38:43,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:43,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:38:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:43,639 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:38:43,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:38:43,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269691686] [2024-10-11 03:38:43,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269691686] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:38:43,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942368908] [2024-10-11 03:38:43,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:43,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:38:43,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:38:43,643 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 03:38:43,648 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 03:38:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:43,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 03:38:43,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:38:44,218 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:38:44,218 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:38:44,551 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:38:44,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942368908] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:38:44,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:38:44,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2024-10-11 03:38:44,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392916209] [2024-10-11 03:38:44,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:38:44,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 03:38:44,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:38:44,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 03:38:44,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2024-10-11 03:38:44,553 INFO L87 Difference]: Start difference. First operand 6248 states and 8948 transitions. Second operand has 20 states, 20 states have (on average 8.9) internal successors, (178), 20 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:52,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:38:52,348 INFO L93 Difference]: Finished difference Result 41939 states and 59825 transitions. [2024-10-11 03:38:52,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2024-10-11 03:38:52,349 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 8.9) internal successors, (178), 20 states have internal predecessors, (178), 0 states have call successors, (0), 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 03:38:52,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:38:52,418 INFO L225 Difference]: With dead ends: 41939 [2024-10-11 03:38:52,419 INFO L226 Difference]: Without dead ends: 35713 [2024-10-11 03:38:52,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10063 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=4094, Invalid=20712, Unknown=0, NotChecked=0, Total=24806 [2024-10-11 03:38:52,436 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 8861 mSDsluCounter, 2166 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8861 SdHoareTripleChecker+Valid, 2363 SdHoareTripleChecker+Invalid, 2738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 03:38:52,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8861 Valid, 2363 Invalid, 2738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 2581 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 03:38:52,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35713 states. [2024-10-11 03:38:52,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35713 to 25556. [2024-10-11 03:38:52,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25556 states, 25555 states have (on average 1.407591469379769) internal successors, (35971), 25555 states have internal predecessors, (35971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:52,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25556 states to 25556 states and 35971 transitions. [2024-10-11 03:38:52,887 INFO L78 Accepts]: Start accepts. Automaton has 25556 states and 35971 transitions. Word has length 62 [2024-10-11 03:38:52,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:38:52,887 INFO L471 AbstractCegarLoop]: Abstraction has 25556 states and 35971 transitions. [2024-10-11 03:38:52,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.9) internal successors, (178), 20 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:52,888 INFO L276 IsEmpty]: Start isEmpty. Operand 25556 states and 35971 transitions. [2024-10-11 03:38:52,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-11 03:38:52,890 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:38:52,891 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:38:52,906 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 03:38:53,092 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,SelfDestructingSolverStorable9 [2024-10-11 03:38:53,093 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:38:53,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:38:53,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1808848488, now seen corresponding path program 1 times [2024-10-11 03:38:53,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:38:53,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122694352] [2024-10-11 03:38:53,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:53,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:38:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:53,141 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:38:53,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:38:53,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122694352] [2024-10-11 03:38:53,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122694352] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:38:53,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:38:53,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:38:53,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128391851] [2024-10-11 03:38:53,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:38:53,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:38:53,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:38:53,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:38:53,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:38:53,144 INFO L87 Difference]: Start difference. First operand 25556 states and 35971 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:53,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:38:53,382 INFO L93 Difference]: Finished difference Result 50058 states and 70031 transitions. [2024-10-11 03:38:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:38:53,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-10-11 03:38:53,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:38:53,455 INFO L225 Difference]: With dead ends: 50058 [2024-10-11 03:38:53,455 INFO L226 Difference]: Without dead ends: 33870 [2024-10-11 03:38:53,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:38:53,475 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 67 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:38:53,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 264 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:38:53,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33870 states. [2024-10-11 03:38:53,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33870 to 33868. [2024-10-11 03:38:54,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33868 states, 33867 states have (on average 1.3814332536097085) internal successors, (46785), 33867 states have internal predecessors, (46785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:54,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33868 states to 33868 states and 46785 transitions. [2024-10-11 03:38:54,055 INFO L78 Accepts]: Start accepts. Automaton has 33868 states and 46785 transitions. Word has length 63 [2024-10-11 03:38:54,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:38:54,055 INFO L471 AbstractCegarLoop]: Abstraction has 33868 states and 46785 transitions. [2024-10-11 03:38:54,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:54,056 INFO L276 IsEmpty]: Start isEmpty. Operand 33868 states and 46785 transitions. [2024-10-11 03:38:54,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-11 03:38:54,058 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:38:54,058 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:38:54,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 03:38:54,059 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:38:54,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:38:54,059 INFO L85 PathProgramCache]: Analyzing trace with hash 626233138, now seen corresponding path program 1 times [2024-10-11 03:38:54,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:38:54,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931382184] [2024-10-11 03:38:54,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:54,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:38:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:54,228 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:38:54,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:38:54,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931382184] [2024-10-11 03:38:54,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931382184] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:38:54,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:38:54,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:38:54,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100706026] [2024-10-11 03:38:54,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:38:54,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:38:54,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:38:54,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:38:54,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:38:54,230 INFO L87 Difference]: Start difference. First operand 33868 states and 46785 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:54,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:38:54,521 INFO L93 Difference]: Finished difference Result 52235 states and 72083 transitions. [2024-10-11 03:38:54,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:38:54,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-10-11 03:38:54,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:38:54,567 INFO L225 Difference]: With dead ends: 52235 [2024-10-11 03:38:54,567 INFO L226 Difference]: Without dead ends: 33870 [2024-10-11 03:38:54,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:38:54,585 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 64 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:38:54,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 250 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:38:54,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33870 states. [2024-10-11 03:38:54,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33870 to 32564. [2024-10-11 03:38:54,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32564 states, 32563 states have (on average 1.3735220956300096) internal successors, (44726), 32563 states have internal predecessors, (44726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:55,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32564 states to 32564 states and 44726 transitions. [2024-10-11 03:38:55,022 INFO L78 Accepts]: Start accepts. Automaton has 32564 states and 44726 transitions. Word has length 63 [2024-10-11 03:38:55,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:38:55,022 INFO L471 AbstractCegarLoop]: Abstraction has 32564 states and 44726 transitions. [2024-10-11 03:38:55,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:55,023 INFO L276 IsEmpty]: Start isEmpty. Operand 32564 states and 44726 transitions. [2024-10-11 03:38:55,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-11 03:38:55,027 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:38:55,028 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:38:55,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 03:38:55,028 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:38:55,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:38:55,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1577742319, now seen corresponding path program 1 times [2024-10-11 03:38:55,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:38:55,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314145100] [2024-10-11 03:38:55,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:55,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:38:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:55,122 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:38:55,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:38:55,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314145100] [2024-10-11 03:38:55,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314145100] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:38:55,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:38:55,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:38:55,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466474566] [2024-10-11 03:38:55,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:38:55,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:38:55,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:38:55,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:38:55,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:38:55,125 INFO L87 Difference]: Start difference. First operand 32564 states and 44726 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:55,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:38:55,389 INFO L93 Difference]: Finished difference Result 62571 states and 86546 transitions. [2024-10-11 03:38:55,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:38:55,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-10-11 03:38:55,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:38:55,468 INFO L225 Difference]: With dead ends: 62571 [2024-10-11 03:38:55,468 INFO L226 Difference]: Without dead ends: 49797 [2024-10-11 03:38:55,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:38:55,495 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 347 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:38:55,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 567 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:38:55,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49797 states. [2024-10-11 03:38:56,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49797 to 43683. [2024-10-11 03:38:56,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43683 states, 43682 states have (on average 1.3683897257451583) internal successors, (59774), 43682 states have internal predecessors, (59774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:56,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43683 states to 43683 states and 59774 transitions. [2024-10-11 03:38:56,140 INFO L78 Accepts]: Start accepts. Automaton has 43683 states and 59774 transitions. Word has length 63 [2024-10-11 03:38:56,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:38:56,140 INFO L471 AbstractCegarLoop]: Abstraction has 43683 states and 59774 transitions. [2024-10-11 03:38:56,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:56,140 INFO L276 IsEmpty]: Start isEmpty. Operand 43683 states and 59774 transitions. [2024-10-11 03:38:56,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-11 03:38:56,146 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:38:56,146 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:38:56,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 03:38:56,147 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:38:56,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:38:56,147 INFO L85 PathProgramCache]: Analyzing trace with hash -298940458, now seen corresponding path program 1 times [2024-10-11 03:38:56,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:38:56,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103489886] [2024-10-11 03:38:56,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:56,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:38:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:56,188 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:38:56,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:38:56,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103489886] [2024-10-11 03:38:56,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103489886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:38:56,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:38:56,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:38:56,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604360238] [2024-10-11 03:38:56,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:38:56,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:38:56,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:38:56,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:38:56,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:38:56,191 INFO L87 Difference]: Start difference. First operand 43683 states and 59774 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:56,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:38:56,572 INFO L93 Difference]: Finished difference Result 75723 states and 102952 transitions. [2024-10-11 03:38:56,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:38:56,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-10-11 03:38:56,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:38:56,640 INFO L225 Difference]: With dead ends: 75723 [2024-10-11 03:38:56,640 INFO L226 Difference]: Without dead ends: 45232 [2024-10-11 03:38:56,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:38:56,824 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 68 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:38:56,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 268 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:38:56,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45232 states. [2024-10-11 03:38:57,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45232 to 43726. [2024-10-11 03:38:57,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43726 states, 43725 states have (on average 1.3482218410520297) internal successors, (58951), 43725 states have internal predecessors, (58951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:57,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43726 states to 43726 states and 58951 transitions. [2024-10-11 03:38:57,289 INFO L78 Accepts]: Start accepts. Automaton has 43726 states and 58951 transitions. Word has length 63 [2024-10-11 03:38:57,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:38:57,290 INFO L471 AbstractCegarLoop]: Abstraction has 43726 states and 58951 transitions. [2024-10-11 03:38:57,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:57,290 INFO L276 IsEmpty]: Start isEmpty. Operand 43726 states and 58951 transitions. [2024-10-11 03:38:57,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-11 03:38:57,298 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:38:57,298 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:38:57,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 03:38:57,299 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:38:57,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:38:57,299 INFO L85 PathProgramCache]: Analyzing trace with hash -2084949564, now seen corresponding path program 1 times [2024-10-11 03:38:57,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:38:57,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597394905] [2024-10-11 03:38:57,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:57,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:38:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:57,562 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 03:38:57,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:38:57,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597394905] [2024-10-11 03:38:57,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597394905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:38:57,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:38:57,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:38:57,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87180356] [2024-10-11 03:38:57,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:38:57,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:38:57,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:38:57,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:38:57,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:38:57,565 INFO L87 Difference]: Start difference. First operand 43726 states and 58951 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:57,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:38:57,714 INFO L93 Difference]: Finished difference Result 66657 states and 90679 transitions. [2024-10-11 03:38:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:38:57,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-10-11 03:38:57,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:38:57,985 INFO L225 Difference]: With dead ends: 66657 [2024-10-11 03:38:57,985 INFO L226 Difference]: Without dead ends: 58079 [2024-10-11 03:38:58,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:38:58,006 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 354 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:38:58,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 567 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:38:58,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58079 states. [2024-10-11 03:38:58,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58079 to 51974. [2024-10-11 03:38:58,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51974 states, 51973 states have (on average 1.347757489465684) internal successors, (70047), 51973 states have internal predecessors, (70047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:58,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51974 states to 51974 states and 70047 transitions. [2024-10-11 03:38:58,876 INFO L78 Accepts]: Start accepts. Automaton has 51974 states and 70047 transitions. Word has length 63 [2024-10-11 03:38:58,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:38:58,876 INFO L471 AbstractCegarLoop]: Abstraction has 51974 states and 70047 transitions. [2024-10-11 03:38:58,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:58,877 INFO L276 IsEmpty]: Start isEmpty. Operand 51974 states and 70047 transitions. [2024-10-11 03:38:58,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 03:38:58,879 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:38:58,880 INFO L215 NwaCegarLoop]: trace histogram [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 03:38:58,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 03:38:58,880 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:38:58,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:38:58,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1537795674, now seen corresponding path program 1 times [2024-10-11 03:38:58,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:38:58,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393035820] [2024-10-11 03:38:58,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:38:58,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:38:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:38:58,940 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 03:38:58,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:38:58,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393035820] [2024-10-11 03:38:58,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393035820] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:38:58,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:38:58,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 03:38:58,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208418054] [2024-10-11 03:38:58,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:38:58,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:38:58,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:38:58,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:38:58,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:38:58,942 INFO L87 Difference]: Start difference. First operand 51974 states and 70047 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:38:59,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:38:59,126 INFO L93 Difference]: Finished difference Result 78978 states and 107279 transitions. [2024-10-11 03:38:59,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:38:59,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-11 03:38:59,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:38:59,206 INFO L225 Difference]: With dead ends: 78978 [2024-10-11 03:38:59,207 INFO L226 Difference]: Without dead ends: 66829 [2024-10-11 03:38:59,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:38:59,234 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 337 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:38:59,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 596 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:38:59,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66829 states. [2024-10-11 03:39:00,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66829 to 60711. [2024-10-11 03:39:00,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60711 states, 60710 states have (on average 1.3450008235875475) internal successors, (81655), 60710 states have internal predecessors, (81655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:00,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60711 states to 60711 states and 81655 transitions. [2024-10-11 03:39:00,420 INFO L78 Accepts]: Start accepts. Automaton has 60711 states and 81655 transitions. Word has length 64 [2024-10-11 03:39:00,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:39:00,420 INFO L471 AbstractCegarLoop]: Abstraction has 60711 states and 81655 transitions. [2024-10-11 03:39:00,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:00,420 INFO L276 IsEmpty]: Start isEmpty. Operand 60711 states and 81655 transitions. [2024-10-11 03:39:00,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 03:39:00,425 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:39:00,425 INFO L215 NwaCegarLoop]: trace histogram [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 03:39:00,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 03:39:00,425 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:39:00,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:39:00,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1526115763, now seen corresponding path program 1 times [2024-10-11 03:39:00,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:39:00,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935541877] [2024-10-11 03:39:00,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:39:00,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:39:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:39:00,481 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 03:39:00,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:39:00,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935541877] [2024-10-11 03:39:00,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935541877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:39:00,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:39:00,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:39:00,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508482740] [2024-10-11 03:39:00,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:39:00,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:39:00,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:39:00,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:39:00,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:39:00,484 INFO L87 Difference]: Start difference. First operand 60711 states and 81655 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:00,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:39:00,800 INFO L93 Difference]: Finished difference Result 146685 states and 196945 transitions. [2024-10-11 03:39:00,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:39:00,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-11 03:39:00,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:39:01,183 INFO L225 Difference]: With dead ends: 146685 [2024-10-11 03:39:01,183 INFO L226 Difference]: Without dead ends: 86033 [2024-10-11 03:39:01,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:39:01,227 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 483 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:39:01,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 139 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:39:01,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86033 states. [2024-10-11 03:39:02,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86033 to 85537. [2024-10-11 03:39:02,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85537 states, 85536 states have (on average 1.3290778151889262) internal successors, (113684), 85536 states have internal predecessors, (113684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:02,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85537 states to 85537 states and 113684 transitions. [2024-10-11 03:39:02,628 INFO L78 Accepts]: Start accepts. Automaton has 85537 states and 113684 transitions. Word has length 68 [2024-10-11 03:39:02,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:39:02,629 INFO L471 AbstractCegarLoop]: Abstraction has 85537 states and 113684 transitions. [2024-10-11 03:39:02,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:02,629 INFO L276 IsEmpty]: Start isEmpty. Operand 85537 states and 113684 transitions. [2024-10-11 03:39:02,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 03:39:02,633 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:39:02,633 INFO L215 NwaCegarLoop]: trace histogram [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 03:39:02,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 03:39:02,634 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:39:02,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:39:02,634 INFO L85 PathProgramCache]: Analyzing trace with hash 458570350, now seen corresponding path program 1 times [2024-10-11 03:39:02,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:39:02,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097918848] [2024-10-11 03:39:02,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:39:02,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:39:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:39:02,718 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:39:02,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:39:02,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097918848] [2024-10-11 03:39:02,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097918848] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:39:02,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288127189] [2024-10-11 03:39:02,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:39:02,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:39:02,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:39:02,720 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 03:39:02,721 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 03:39:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:39:02,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 03:39:02,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:39:02,997 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:39:02,998 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:39:03,080 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:39:03,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288127189] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:39:03,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:39:03,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-10-11 03:39:03,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486728006] [2024-10-11 03:39:03,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:39:03,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 03:39:03,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:39:03,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 03:39:03,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:39:03,081 INFO L87 Difference]: Start difference. First operand 85537 states and 113684 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:03,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:39:03,509 INFO L93 Difference]: Finished difference Result 154796 states and 205465 transitions. [2024-10-11 03:39:03,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 03:39:03,509 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-11 03:39:03,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:39:03,667 INFO L225 Difference]: With dead ends: 154796 [2024-10-11 03:39:03,668 INFO L226 Difference]: Without dead ends: 104403 [2024-10-11 03:39:03,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 126 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-10-11 03:39:03,725 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 904 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:39:03,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 288 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:39:03,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104403 states. [2024-10-11 03:39:05,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104403 to 88127. [2024-10-11 03:39:05,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88127 states, 88126 states have (on average 1.3223339309624855) internal successors, (116532), 88126 states have internal predecessors, (116532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:05,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88127 states to 88127 states and 116532 transitions. [2024-10-11 03:39:05,389 INFO L78 Accepts]: Start accepts. Automaton has 88127 states and 116532 transitions. Word has length 68 [2024-10-11 03:39:05,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:39:05,390 INFO L471 AbstractCegarLoop]: Abstraction has 88127 states and 116532 transitions. [2024-10-11 03:39:05,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:05,390 INFO L276 IsEmpty]: Start isEmpty. Operand 88127 states and 116532 transitions. [2024-10-11 03:39:05,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 03:39:05,395 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:39:05,395 INFO L215 NwaCegarLoop]: trace histogram [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 03:39:05,414 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 03:39:05,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-11 03:39:05,597 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:39:05,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:39:05,598 INFO L85 PathProgramCache]: Analyzing trace with hash -297395949, now seen corresponding path program 1 times [2024-10-11 03:39:05,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:39:05,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462498645] [2024-10-11 03:39:05,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:39:05,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:39:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:39:05,724 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 03:39:05,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:39:05,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462498645] [2024-10-11 03:39:05,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462498645] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:39:05,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:39:05,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 03:39:05,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177050886] [2024-10-11 03:39:05,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:39:05,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 03:39:05,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:39:05,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 03:39:05,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 03:39:05,725 INFO L87 Difference]: Start difference. First operand 88127 states and 116532 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:06,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:39:06,190 INFO L93 Difference]: Finished difference Result 201207 states and 265677 transitions. [2024-10-11 03:39:06,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 03:39:06,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 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 68 [2024-10-11 03:39:06,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:39:06,348 INFO L225 Difference]: With dead ends: 201207 [2024-10-11 03:39:06,348 INFO L226 Difference]: Without dead ends: 113258 [2024-10-11 03:39:06,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 03:39:06,874 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 467 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:39:06,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 147 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:39:06,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113258 states. [2024-10-11 03:39:08,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113258 to 112789. [2024-10-11 03:39:08,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112789 states, 112788 states have (on average 1.307222399546051) internal successors, (147439), 112788 states have internal predecessors, (147439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:08,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112789 states to 112789 states and 147439 transitions. [2024-10-11 03:39:08,563 INFO L78 Accepts]: Start accepts. Automaton has 112789 states and 147439 transitions. Word has length 68 [2024-10-11 03:39:08,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:39:08,563 INFO L471 AbstractCegarLoop]: Abstraction has 112789 states and 147439 transitions. [2024-10-11 03:39:08,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:08,564 INFO L276 IsEmpty]: Start isEmpty. Operand 112789 states and 147439 transitions. [2024-10-11 03:39:08,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 03:39:08,576 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:39:08,576 INFO L215 NwaCegarLoop]: trace histogram [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 03:39:08,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 03:39:08,577 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:39:08,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:39:08,577 INFO L85 PathProgramCache]: Analyzing trace with hash -454343816, now seen corresponding path program 1 times [2024-10-11 03:39:08,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:39:08,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141557817] [2024-10-11 03:39:08,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:39:08,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:39:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:39:08,714 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:39:08,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:39:08,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141557817] [2024-10-11 03:39:08,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141557817] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:39:08,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922022253] [2024-10-11 03:39:08,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:39:08,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:39:08,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:39:08,719 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 03:39:08,721 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 03:39:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:39:08,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 03:39:08,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:39:09,000 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:39:09,000 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:39:09,072 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:39:09,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922022253] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:39:09,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:39:09,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-10-11 03:39:09,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280829567] [2024-10-11 03:39:09,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:39:09,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 03:39:09,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:39:09,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 03:39:09,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:39:09,074 INFO L87 Difference]: Start difference. First operand 112789 states and 147439 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:09,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:39:09,815 INFO L93 Difference]: Finished difference Result 242906 states and 318072 transitions. [2024-10-11 03:39:09,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:39:09,815 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-10-11 03:39:09,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:39:10,587 INFO L225 Difference]: With dead ends: 242906 [2024-10-11 03:39:10,587 INFO L226 Difference]: Without dead ends: 156459 [2024-10-11 03:39:10,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 126 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-10-11 03:39:10,607 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 682 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 03:39:10,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 409 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 03:39:10,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156459 states. [2024-10-11 03:39:11,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156459 to 118430. [2024-10-11 03:39:11,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118430 states, 118429 states have (on average 1.3079313343860035) internal successors, (154897), 118429 states have internal predecessors, (154897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:12,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118430 states to 118430 states and 154897 transitions. [2024-10-11 03:39:12,080 INFO L78 Accepts]: Start accepts. Automaton has 118430 states and 154897 transitions. Word has length 68 [2024-10-11 03:39:12,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:39:12,081 INFO L471 AbstractCegarLoop]: Abstraction has 118430 states and 154897 transitions. [2024-10-11 03:39:12,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:12,081 INFO L276 IsEmpty]: Start isEmpty. Operand 118430 states and 154897 transitions. [2024-10-11 03:39:12,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 03:39:12,085 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:39:12,086 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:39:12,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 03:39:12,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:39:12,286 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:39:12,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:39:12,287 INFO L85 PathProgramCache]: Analyzing trace with hash -966988150, now seen corresponding path program 1 times [2024-10-11 03:39:12,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:39:12,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623905138] [2024-10-11 03:39:12,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:39:12,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:39:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:39:12,432 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:39:12,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:39:12,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623905138] [2024-10-11 03:39:12,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623905138] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:39:12,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295641994] [2024-10-11 03:39:12,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:39:12,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:39:12,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:39:12,435 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 03:39:12,436 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 03:39:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:39:12,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 03:39:12,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:39:12,661 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:39:12,661 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:39:12,740 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:39:12,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295641994] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:39:12,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:39:12,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-10-11 03:39:12,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427988162] [2024-10-11 03:39:12,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:39:12,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 03:39:12,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:39:12,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 03:39:12,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-10-11 03:39:12,742 INFO L87 Difference]: Start difference. First operand 118430 states and 154897 transitions. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 10 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:14,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:39:14,059 INFO L93 Difference]: Finished difference Result 226134 states and 296296 transitions. [2024-10-11 03:39:14,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 03:39:14,059 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 10 states have internal predecessors, (121), 0 states have call successors, (0), 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 69 [2024-10-11 03:39:14,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:39:14,264 INFO L225 Difference]: With dead ends: 226134 [2024-10-11 03:39:14,264 INFO L226 Difference]: Without dead ends: 166276 [2024-10-11 03:39:14,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 128 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-10-11 03:39:14,317 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 621 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 03:39:14,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 319 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 03:39:14,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166276 states. [2024-10-11 03:39:15,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166276 to 131715. [2024-10-11 03:39:16,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131715 states, 131714 states have (on average 1.3049258241341088) internal successors, (171877), 131714 states have internal predecessors, (171877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:16,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131715 states to 131715 states and 171877 transitions. [2024-10-11 03:39:16,235 INFO L78 Accepts]: Start accepts. Automaton has 131715 states and 171877 transitions. Word has length 69 [2024-10-11 03:39:16,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:39:16,236 INFO L471 AbstractCegarLoop]: Abstraction has 131715 states and 171877 transitions. [2024-10-11 03:39:16,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 10 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:16,237 INFO L276 IsEmpty]: Start isEmpty. Operand 131715 states and 171877 transitions. [2024-10-11 03:39:16,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-11 03:39:16,241 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:39:16,241 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:39:16,254 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 03:39:16,442 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,SelfDestructingSolverStorable20 [2024-10-11 03:39:16,442 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:39:16,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:39:16,443 INFO L85 PathProgramCache]: Analyzing trace with hash 822715612, now seen corresponding path program 1 times [2024-10-11 03:39:16,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:39:16,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019518628] [2024-10-11 03:39:16,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:39:16,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:39:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:39:16,661 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:39:16,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:39:16,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019518628] [2024-10-11 03:39:16,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019518628] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 03:39:16,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772357397] [2024-10-11 03:39:16,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:39:16,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 03:39:16,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 03:39:16,663 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 03:39:16,664 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 03:39:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:39:17,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-11 03:39:17,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 03:39:18,527 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:39:18,528 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 03:39:19,035 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:39:19,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772357397] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 03:39:19,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 03:39:19,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 28 [2024-10-11 03:39:19,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217017633] [2024-10-11 03:39:19,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 03:39:19,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-11 03:39:19,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:39:19,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-11 03:39:19,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2024-10-11 03:39:19,038 INFO L87 Difference]: Start difference. First operand 131715 states and 171877 transitions. Second operand has 29 states, 29 states have (on average 6.689655172413793) internal successors, (194), 28 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:39,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:39:39,433 INFO L93 Difference]: Finished difference Result 817421 states and 1056831 transitions. [2024-10-11 03:39:39,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 330 states. [2024-10-11 03:39:39,434 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.689655172413793) internal successors, (194), 28 states have internal predecessors, (194), 0 states have call successors, (0), 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 70 [2024-10-11 03:39:39,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:39:41,400 INFO L225 Difference]: With dead ends: 817421 [2024-10-11 03:39:41,400 INFO L226 Difference]: Without dead ends: 710981 [2024-10-11 03:39:41,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 353 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55259 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=13416, Invalid=112254, Unknown=0, NotChecked=0, Total=125670 [2024-10-11 03:39:41,585 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 8270 mSDsluCounter, 4193 mSDsCounter, 0 mSdLazyCounter, 5990 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8270 SdHoareTripleChecker+Valid, 4495 SdHoareTripleChecker+Invalid, 6090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 5990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-10-11 03:39:41,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8270 Valid, 4495 Invalid, 6090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 5990 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-10-11 03:39:42,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710981 states. [2024-10-11 03:39:46,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710981 to 260128. [2024-10-11 03:39:46,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260128 states, 260127 states have (on average 1.312262856220231) internal successors, (341355), 260127 states have internal predecessors, (341355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:47,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260128 states to 260128 states and 341355 transitions. [2024-10-11 03:39:47,967 INFO L78 Accepts]: Start accepts. Automaton has 260128 states and 341355 transitions. Word has length 70 [2024-10-11 03:39:47,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:39:47,967 INFO L471 AbstractCegarLoop]: Abstraction has 260128 states and 341355 transitions. [2024-10-11 03:39:47,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.689655172413793) internal successors, (194), 28 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:47,969 INFO L276 IsEmpty]: Start isEmpty. Operand 260128 states and 341355 transitions. [2024-10-11 03:39:47,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-11 03:39:47,974 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:39:47,974 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:39:47,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 03:39:48,174 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,SelfDestructingSolverStorable21 [2024-10-11 03:39:48,175 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:39:48,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:39:48,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1577076904, now seen corresponding path program 1 times [2024-10-11 03:39:48,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:39:48,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716321881] [2024-10-11 03:39:48,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:39:48,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:39:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:39:48,253 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 03:39:48,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:39:48,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716321881] [2024-10-11 03:39:48,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716321881] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:39:48,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:39:48,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:39:48,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166992428] [2024-10-11 03:39:48,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:39:48,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:39:48,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:39:48,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:39:48,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:39:48,255 INFO L87 Difference]: Start difference. First operand 260128 states and 341355 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:48,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:39:48,865 INFO L93 Difference]: Finished difference Result 296238 states and 388215 transitions. [2024-10-11 03:39:48,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:39:48,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-10-11 03:39:48,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 03:39:49,221 INFO L225 Difference]: With dead ends: 296238 [2024-10-11 03:39:49,221 INFO L226 Difference]: Without dead ends: 244282 [2024-10-11 03:39:49,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:39:49,321 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 60 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 03:39:49,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 286 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 03:39:49,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244282 states. [2024-10-11 03:39:52,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244282 to 244280. [2024-10-11 03:39:52,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244280 states, 244279 states have (on average 1.2960057966505512) internal successors, (316587), 244279 states have internal predecessors, (316587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:53,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244280 states to 244280 states and 316587 transitions. [2024-10-11 03:39:53,475 INFO L78 Accepts]: Start accepts. Automaton has 244280 states and 316587 transitions. Word has length 71 [2024-10-11 03:39:53,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 03:39:53,475 INFO L471 AbstractCegarLoop]: Abstraction has 244280 states and 316587 transitions. [2024-10-11 03:39:53,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:53,475 INFO L276 IsEmpty]: Start isEmpty. Operand 244280 states and 316587 transitions. [2024-10-11 03:39:53,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-11 03:39:53,480 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 03:39:53,481 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 03:39:53,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 03:39:53,481 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 03:39:53,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 03:39:53,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1111217540, now seen corresponding path program 1 times [2024-10-11 03:39:53,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 03:39:53,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414067265] [2024-10-11 03:39:53,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 03:39:53,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 03:39:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 03:39:53,512 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 03:39:53,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 03:39:53,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414067265] [2024-10-11 03:39:53,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414067265] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 03:39:53,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 03:39:53,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 03:39:53,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538059785] [2024-10-11 03:39:53,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 03:39:53,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 03:39:53,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 03:39:53,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 03:39:53,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 03:39:53,514 INFO L87 Difference]: Start difference. First operand 244280 states and 316587 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 03:39:55,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 03:39:55,411 INFO L93 Difference]: Finished difference Result 444811 states and 577220 transitions. [2024-10-11 03:39:55,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 03:39:55,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-10-11 03:39:55,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted.