./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-30.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 dc2fe70e94d243c3ae1cdd98b82e6067b1168df8c474310114d000e70da816e2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:16:08,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:16:08,498 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:16:08,503 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:16:08,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:16:08,522 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:16:08,522 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:16:08,523 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:16:08,523 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:16:08,524 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:16:08,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:16:08,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:16:08,525 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:16:08,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:16:08,526 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:16:08,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:16:08,527 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:16:08,527 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:16:08,527 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:16:08,528 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:16:08,528 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:16:08,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:16:08,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:16:08,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:16:08,533 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:16:08,533 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:16:08,533 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:16:08,534 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:16:08,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:16:08,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:16:08,534 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:16:08,534 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:16:08,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:16:08,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:16:08,535 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:16:08,535 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:16:08,535 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:16:08,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:16:08,536 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:16:08,536 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:16:08,536 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:16:08,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:16:08,537 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc2fe70e94d243c3ae1cdd98b82e6067b1168df8c474310114d000e70da816e2 [2024-11-19 01:16:08,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:16:08,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:16:08,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:16:08,839 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:16:08,840 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:16:08,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-30.i [2024-11-19 01:16:10,393 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:16:10,615 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:16:10,616 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-30.i [2024-11-19 01:16:10,626 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a2cbcb72/ba1398c2d77a459497d477884a14b7a9/FLAG6c1080411 [2024-11-19 01:16:10,638 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a2cbcb72/ba1398c2d77a459497d477884a14b7a9 [2024-11-19 01:16:10,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:16:10,641 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:16:10,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:16:10,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:16:10,648 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:16:10,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:16:10" (1/1) ... [2024-11-19 01:16:10,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@421dc554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:10, skipping insertion in model container [2024-11-19 01:16:10,650 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:16:10" (1/1) ... [2024-11-19 01:16:10,682 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:16:10,856 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-30.i[917,930] [2024-11-19 01:16:10,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:16:10,995 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:16:11,007 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-30.i[917,930] [2024-11-19 01:16:11,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:16:11,088 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:16:11,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:11 WrapperNode [2024-11-19 01:16:11,089 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:16:11,090 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:16:11,091 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:16:11,091 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:16:11,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:11" (1/1) ... [2024-11-19 01:16:11,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:11" (1/1) ... [2024-11-19 01:16:11,171 INFO L138 Inliner]: procedures = 30, calls = 168, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 531 [2024-11-19 01:16:11,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:16:11,173 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:16:11,173 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:16:11,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:16:11,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:11" (1/1) ... [2024-11-19 01:16:11,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:11" (1/1) ... [2024-11-19 01:16:11,195 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:11" (1/1) ... [2024-11-19 01:16:11,206 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-19 01:16:11,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:11" (1/1) ... [2024-11-19 01:16:11,207 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:11" (1/1) ... [2024-11-19 01:16:11,232 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:11" (1/1) ... [2024-11-19 01:16:11,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:11" (1/1) ... [2024-11-19 01:16:11,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:11" (1/1) ... [2024-11-19 01:16:11,250 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:11" (1/1) ... [2024-11-19 01:16:11,256 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:16:11,257 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:16:11,257 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:16:11,258 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:16:11,258 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:11" (1/1) ... [2024-11-19 01:16:11,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:16:11,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:16:11,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 01:16:11,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 01:16:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:16:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-19 01:16:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-19 01:16:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-19 01:16:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 01:16:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-19 01:16:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 01:16:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 01:16:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 01:16:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 01:16:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:16:11,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:16:11,516 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:16:11,518 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:16:12,217 INFO L? ?]: Removed 149 outVars from TransFormulas that were not future-live. [2024-11-19 01:16:12,218 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:16:12,237 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:16:12,238 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 01:16:12,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:16:12 BoogieIcfgContainer [2024-11-19 01:16:12,239 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:16:12,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:16:12,243 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:16:12,246 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:16:12,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:16:10" (1/3) ... [2024-11-19 01:16:12,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327e83bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:16:12, skipping insertion in model container [2024-11-19 01:16:12,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:11" (2/3) ... [2024-11-19 01:16:12,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327e83bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:16:12, skipping insertion in model container [2024-11-19 01:16:12,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:16:12" (3/3) ... [2024-11-19 01:16:12,250 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-30.i [2024-11-19 01:16:12,268 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:16:12,269 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:16:12,333 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:16:12,340 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;@4b69c5e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:16:12,341 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 01:16:12,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 100 states have (on average 1.41) internal successors, (141), 101 states have internal predecessors, (141), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:16:12,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-19 01:16:12,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:12,359 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:12,360 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:12,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:12,366 INFO L85 PathProgramCache]: Analyzing trace with hash 548327258, now seen corresponding path program 1 times [2024-11-19 01:16:12,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:12,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345027558] [2024-11-19 01:16:12,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:12,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:12,879 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-19 01:16:12,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:12,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345027558] [2024-11-19 01:16:12,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345027558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:16:12,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725755947] [2024-11-19 01:16:12,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:12,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:16:12,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:16:12,884 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:16:12,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 01:16:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:13,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 01:16:13,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:16:13,236 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-19 01:16:13,237 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:16:13,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725755947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:13,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:16:13,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 01:16:13,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026236178] [2024-11-19 01:16:13,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:13,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 01:16:13,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:13,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 01:16:13,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:16:13,276 INFO L87 Difference]: Start difference. First operand has 120 states, 100 states have (on average 1.41) internal successors, (141), 101 states have internal predecessors, (141), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 01:16:13,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:13,312 INFO L93 Difference]: Finished difference Result 233 states and 361 transitions. [2024-11-19 01:16:13,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 01:16:13,314 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2024-11-19 01:16:13,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:13,322 INFO L225 Difference]: With dead ends: 233 [2024-11-19 01:16:13,322 INFO L226 Difference]: Without dead ends: 116 [2024-11-19 01:16:13,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:16:13,329 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:13,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:16:13,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-19 01:16:13,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-19 01:16:13,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 97 states have internal predecessors, (134), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:16:13,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 168 transitions. [2024-11-19 01:16:13,372 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 168 transitions. Word has length 138 [2024-11-19 01:16:13,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:13,372 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 168 transitions. [2024-11-19 01:16:13,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 01:16:13,374 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 168 transitions. [2024-11-19 01:16:13,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-19 01:16:13,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:13,377 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:13,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 01:16:13,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 01:16:13,579 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:13,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:13,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1959915148, now seen corresponding path program 1 times [2024-11-19 01:16:13,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:13,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766841962] [2024-11-19 01:16:13,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:13,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:14,034 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:14,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:14,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766841962] [2024-11-19 01:16:14,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766841962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:14,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:14,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:16:14,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381911143] [2024-11-19 01:16:14,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:14,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:16:14,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:14,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:16:14,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:16:14,039 INFO L87 Difference]: Start difference. First operand 116 states and 168 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 01:16:14,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:14,087 INFO L93 Difference]: Finished difference Result 231 states and 336 transitions. [2024-11-19 01:16:14,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:16:14,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2024-11-19 01:16:14,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:14,090 INFO L225 Difference]: With dead ends: 231 [2024-11-19 01:16:14,091 INFO L226 Difference]: Without dead ends: 118 [2024-11-19 01:16:14,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:16:14,097 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 0 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:14,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 487 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:16:14,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-19 01:16:14,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-19 01:16:14,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 99 states have (on average 1.3737373737373737) internal successors, (136), 99 states have internal predecessors, (136), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:16:14,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 170 transitions. [2024-11-19 01:16:14,113 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 170 transitions. Word has length 138 [2024-11-19 01:16:14,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:14,116 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 170 transitions. [2024-11-19 01:16:14,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 01:16:14,117 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 170 transitions. [2024-11-19 01:16:14,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-19 01:16:14,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:14,119 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:14,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:16:14,119 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:14,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:14,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1944396430, now seen corresponding path program 1 times [2024-11-19 01:16:14,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:14,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166314745] [2024-11-19 01:16:14,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:14,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:14,392 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:14,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:14,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166314745] [2024-11-19 01:16:14,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166314745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:14,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:14,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:16:14,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449252168] [2024-11-19 01:16:14,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:14,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:16:14,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:14,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:16:14,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:16:14,400 INFO L87 Difference]: Start difference. First operand 118 states and 170 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:14,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:14,445 INFO L93 Difference]: Finished difference Result 236 states and 341 transitions. [2024-11-19 01:16:14,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:16:14,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138 [2024-11-19 01:16:14,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:14,448 INFO L225 Difference]: With dead ends: 236 [2024-11-19 01:16:14,451 INFO L226 Difference]: Without dead ends: 121 [2024-11-19 01:16:14,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:16:14,453 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:14,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 486 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:16:14,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-19 01:16:14,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 120. [2024-11-19 01:16:14,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 101 states have internal predecessors, (138), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:16:14,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 172 transitions. [2024-11-19 01:16:14,476 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 172 transitions. Word has length 138 [2024-11-19 01:16:14,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:14,480 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 172 transitions. [2024-11-19 01:16:14,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:14,480 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 172 transitions. [2024-11-19 01:16:14,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-19 01:16:14,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:14,483 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:14,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:16:14,484 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:14,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:14,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1942549388, now seen corresponding path program 1 times [2024-11-19 01:16:14,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:14,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587182924] [2024-11-19 01:16:14,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:14,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:16,678 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:16,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:16,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587182924] [2024-11-19 01:16:16,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587182924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:16,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:16,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:16:16,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573525708] [2024-11-19 01:16:16,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:16,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:16:16,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:16,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:16:16,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:16:16,686 INFO L87 Difference]: Start difference. First operand 120 states and 172 transitions. Second operand has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:17,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:17,751 INFO L93 Difference]: Finished difference Result 264 states and 381 transitions. [2024-11-19 01:16:17,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:16:17,752 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 138 [2024-11-19 01:16:17,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:17,754 INFO L225 Difference]: With dead ends: 264 [2024-11-19 01:16:17,754 INFO L226 Difference]: Without dead ends: 147 [2024-11-19 01:16:17,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2024-11-19 01:16:17,756 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 307 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:17,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 499 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 01:16:17,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-19 01:16:17,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 127. [2024-11-19 01:16:17,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.3611111111111112) internal successors, (147), 108 states have internal predecessors, (147), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:16:17,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 181 transitions. [2024-11-19 01:16:17,770 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 181 transitions. Word has length 138 [2024-11-19 01:16:17,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:17,771 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 181 transitions. [2024-11-19 01:16:17,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:17,772 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 181 transitions. [2024-11-19 01:16:17,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 01:16:17,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:17,775 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:17,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:16:17,775 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:17,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:17,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1059652631, now seen corresponding path program 1 times [2024-11-19 01:16:17,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:17,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088420623] [2024-11-19 01:16:17,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:17,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:20,288 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:20,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:20,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088420623] [2024-11-19 01:16:20,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088420623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:20,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:20,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 01:16:20,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399545925] [2024-11-19 01:16:20,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:20,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 01:16:20,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:20,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 01:16:20,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:16:20,292 INFO L87 Difference]: Start difference. First operand 127 states and 181 transitions. Second operand has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:21,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:21,408 INFO L93 Difference]: Finished difference Result 309 states and 440 transitions. [2024-11-19 01:16:21,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:16:21,410 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-11-19 01:16:21,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:21,412 INFO L225 Difference]: With dead ends: 309 [2024-11-19 01:16:21,413 INFO L226 Difference]: Without dead ends: 185 [2024-11-19 01:16:21,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:16:21,415 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 401 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:21,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 619 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 01:16:21,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-19 01:16:21,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 147. [2024-11-19 01:16:21,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 128 states have (on average 1.3671875) internal successors, (175), 128 states have internal predecessors, (175), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:16:21,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 209 transitions. [2024-11-19 01:16:21,446 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 209 transitions. Word has length 139 [2024-11-19 01:16:21,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:21,448 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 209 transitions. [2024-11-19 01:16:21,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:21,448 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 209 transitions. [2024-11-19 01:16:21,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 01:16:21,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:21,451 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:21,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:16:21,452 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:21,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:21,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1059878008, now seen corresponding path program 1 times [2024-11-19 01:16:21,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:21,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633896480] [2024-11-19 01:16:21,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:21,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:24,618 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:24,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:24,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633896480] [2024-11-19 01:16:24,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633896480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:24,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:24,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 01:16:24,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934378482] [2024-11-19 01:16:24,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:24,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 01:16:24,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:24,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 01:16:24,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:16:24,625 INFO L87 Difference]: Start difference. First operand 147 states and 209 transitions. Second operand has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:26,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:26,793 INFO L93 Difference]: Finished difference Result 353 states and 501 transitions. [2024-11-19 01:16:26,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:16:26,794 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139 [2024-11-19 01:16:26,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:26,796 INFO L225 Difference]: With dead ends: 353 [2024-11-19 01:16:26,796 INFO L226 Difference]: Without dead ends: 209 [2024-11-19 01:16:26,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=105, Invalid=315, Unknown=0, NotChecked=0, Total=420 [2024-11-19 01:16:26,799 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 316 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:26,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 821 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-19 01:16:26,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-19 01:16:26,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 167. [2024-11-19 01:16:26,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 148 states have (on average 1.3716216216216217) internal successors, (203), 148 states have internal predecessors, (203), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:16:26,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 237 transitions. [2024-11-19 01:16:26,822 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 237 transitions. Word has length 139 [2024-11-19 01:16:26,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:26,823 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 237 transitions. [2024-11-19 01:16:26,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 14 states have internal predecessors, (57), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:26,823 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 237 transitions. [2024-11-19 01:16:26,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-19 01:16:26,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:26,825 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:26,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:16:26,826 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:26,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:26,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1559149331, now seen corresponding path program 1 times [2024-11-19 01:16:26,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:26,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548922609] [2024-11-19 01:16:26,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:26,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:27,041 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-19 01:16:27,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:27,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548922609] [2024-11-19 01:16:27,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548922609] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:16:27,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332931461] [2024-11-19 01:16:27,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:27,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:16:27,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:16:27,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:16:27,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 01:16:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:27,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 01:16:27,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:16:27,379 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:27,380 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:16:27,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332931461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:27,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:16:27,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-11-19 01:16:27,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668287636] [2024-11-19 01:16:27,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:27,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:16:27,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:27,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:16:27,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:16:27,383 INFO L87 Difference]: Start difference. First operand 167 states and 237 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:27,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:27,434 INFO L93 Difference]: Finished difference Result 334 states and 475 transitions. [2024-11-19 01:16:27,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:16:27,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-19 01:16:27,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:27,437 INFO L225 Difference]: With dead ends: 334 [2024-11-19 01:16:27,438 INFO L226 Difference]: Without dead ends: 170 [2024-11-19 01:16:27,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:16:27,439 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:27,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 650 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:16:27,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-19 01:16:27,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 168. [2024-11-19 01:16:27,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 149 states have (on average 1.3691275167785235) internal successors, (204), 149 states have internal predecessors, (204), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:16:27,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 238 transitions. [2024-11-19 01:16:27,459 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 238 transitions. Word has length 141 [2024-11-19 01:16:27,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:27,459 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 238 transitions. [2024-11-19 01:16:27,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:27,460 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 238 transitions. [2024-11-19 01:16:27,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-19 01:16:27,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:27,462 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:27,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 01:16:27,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-19 01:16:27,663 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:27,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:27,664 INFO L85 PathProgramCache]: Analyzing trace with hash -344508669, now seen corresponding path program 1 times [2024-11-19 01:16:27,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:27,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072512201] [2024-11-19 01:16:27,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:27,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:29,888 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:29,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:29,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072512201] [2024-11-19 01:16:29,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072512201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:29,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:29,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 01:16:29,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385458265] [2024-11-19 01:16:29,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:29,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 01:16:29,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:29,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 01:16:29,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:16:29,893 INFO L87 Difference]: Start difference. First operand 168 states and 238 transitions. Second operand has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 13 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:31,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:31,112 INFO L93 Difference]: Finished difference Result 409 states and 576 transitions. [2024-11-19 01:16:31,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:16:31,114 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 13 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2024-11-19 01:16:31,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:31,115 INFO L225 Difference]: With dead ends: 409 [2024-11-19 01:16:31,117 INFO L226 Difference]: Without dead ends: 244 [2024-11-19 01:16:31,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2024-11-19 01:16:31,119 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 398 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:31,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 691 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 01:16:31,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-19 01:16:31,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 217. [2024-11-19 01:16:31,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 198 states have (on average 1.3686868686868687) internal successors, (271), 198 states have internal predecessors, (271), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:16:31,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 305 transitions. [2024-11-19 01:16:31,141 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 305 transitions. Word has length 141 [2024-11-19 01:16:31,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:31,141 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 305 transitions. [2024-11-19 01:16:31,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 13 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:31,142 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 305 transitions. [2024-11-19 01:16:31,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-19 01:16:31,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:31,145 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:31,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 01:16:31,145 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:31,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:31,146 INFO L85 PathProgramCache]: Analyzing trace with hash 428417814, now seen corresponding path program 1 times [2024-11-19 01:16:31,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:31,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778370801] [2024-11-19 01:16:31,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:31,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:31,859 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:31,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:31,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778370801] [2024-11-19 01:16:31,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778370801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:31,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:31,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:16:31,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638913052] [2024-11-19 01:16:31,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:31,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:16:31,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:31,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:16:31,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:16:31,862 INFO L87 Difference]: Start difference. First operand 217 states and 305 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:32,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:32,774 INFO L93 Difference]: Finished difference Result 478 states and 672 transitions. [2024-11-19 01:16:32,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:16:32,775 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-11-19 01:16:32,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:32,777 INFO L225 Difference]: With dead ends: 478 [2024-11-19 01:16:32,777 INFO L226 Difference]: Without dead ends: 264 [2024-11-19 01:16:32,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:16:32,778 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 159 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:32,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 779 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 01:16:32,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-19 01:16:32,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 232. [2024-11-19 01:16:32,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 213 states have (on average 1.3708920187793427) internal successors, (292), 213 states have internal predecessors, (292), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:16:32,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 326 transitions. [2024-11-19 01:16:32,820 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 326 transitions. Word has length 141 [2024-11-19 01:16:32,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:32,820 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 326 transitions. [2024-11-19 01:16:32,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:32,821 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 326 transitions. [2024-11-19 01:16:32,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-19 01:16:32,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:32,822 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:32,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 01:16:32,822 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:32,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:32,823 INFO L85 PathProgramCache]: Analyzing trace with hash -592650540, now seen corresponding path program 1 times [2024-11-19 01:16:32,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:32,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386349876] [2024-11-19 01:16:32,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:32,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:35,017 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:35,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:35,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386349876] [2024-11-19 01:16:35,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386349876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:35,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:35,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 01:16:35,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017468494] [2024-11-19 01:16:35,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:35,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 01:16:35,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:35,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 01:16:35,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:16:35,021 INFO L87 Difference]: Start difference. First operand 232 states and 326 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:37,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:37,037 INFO L93 Difference]: Finished difference Result 588 states and 817 transitions. [2024-11-19 01:16:37,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 01:16:37,038 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2024-11-19 01:16:37,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:37,040 INFO L225 Difference]: With dead ends: 588 [2024-11-19 01:16:37,040 INFO L226 Difference]: Without dead ends: 359 [2024-11-19 01:16:37,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=129, Invalid=521, Unknown=0, NotChecked=0, Total=650 [2024-11-19 01:16:37,042 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 360 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:37,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 938 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 01:16:37,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-19 01:16:37,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 255. [2024-11-19 01:16:37,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 236 states have (on average 1.3644067796610169) internal successors, (322), 236 states have internal predecessors, (322), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-19 01:16:37,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 356 transitions. [2024-11-19 01:16:37,062 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 356 transitions. Word has length 141 [2024-11-19 01:16:37,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:37,062 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 356 transitions. [2024-11-19 01:16:37,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:37,063 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 356 transitions. [2024-11-19 01:16:37,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 01:16:37,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:37,064 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:37,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 01:16:37,065 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:37,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:37,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1262461462, now seen corresponding path program 1 times [2024-11-19 01:16:37,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:37,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415931324] [2024-11-19 01:16:37,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:37,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:38,678 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:38,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:38,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415931324] [2024-11-19 01:16:38,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415931324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:38,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:38,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 01:16:38,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320577488] [2024-11-19 01:16:38,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:38,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 01:16:38,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:38,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 01:16:38,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:16:38,681 INFO L87 Difference]: Start difference. First operand 255 states and 356 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 01:16:39,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:39,796 INFO L93 Difference]: Finished difference Result 720 states and 1016 transitions. [2024-11-19 01:16:39,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:16:39,797 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 142 [2024-11-19 01:16:39,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:39,800 INFO L225 Difference]: With dead ends: 720 [2024-11-19 01:16:39,801 INFO L226 Difference]: Without dead ends: 468 [2024-11-19 01:16:39,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2024-11-19 01:16:39,802 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 93 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:39,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 702 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 01:16:39,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-19 01:16:39,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 333. [2024-11-19 01:16:39,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 296 states have (on average 1.3682432432432432) internal successors, (405), 296 states have internal predecessors, (405), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-19 01:16:39,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 473 transitions. [2024-11-19 01:16:39,843 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 473 transitions. Word has length 142 [2024-11-19 01:16:39,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:39,843 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 473 transitions. [2024-11-19 01:16:39,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 01:16:39,844 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 473 transitions. [2024-11-19 01:16:39,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 01:16:39,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:39,849 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:39,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 01:16:39,849 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:39,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:39,850 INFO L85 PathProgramCache]: Analyzing trace with hash 467023564, now seen corresponding path program 1 times [2024-11-19 01:16:39,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:39,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506836956] [2024-11-19 01:16:39,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:39,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:42,656 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:42,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:42,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506836956] [2024-11-19 01:16:42,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506836956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:42,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:42,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 01:16:42,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060695649] [2024-11-19 01:16:42,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:42,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 01:16:42,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:42,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 01:16:42,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-19 01:16:42,659 INFO L87 Difference]: Start difference. First operand 333 states and 473 transitions. Second operand has 13 states, 11 states have (on average 5.454545454545454) internal successors, (60), 13 states have internal predecessors, (60), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 01:16:43,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:43,539 INFO L93 Difference]: Finished difference Result 612 states and 861 transitions. [2024-11-19 01:16:43,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:16:43,540 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.454545454545454) internal successors, (60), 13 states have internal predecessors, (60), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 4 states have call successors, (17) Word has length 142 [2024-11-19 01:16:43,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:43,543 INFO L225 Difference]: With dead ends: 612 [2024-11-19 01:16:43,544 INFO L226 Difference]: Without dead ends: 360 [2024-11-19 01:16:43,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:16:43,545 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 402 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:43,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 631 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 01:16:43,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-19 01:16:43,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 310. [2024-11-19 01:16:43,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 273 states have (on average 1.36996336996337) internal successors, (374), 273 states have internal predecessors, (374), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-19 01:16:43,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 442 transitions. [2024-11-19 01:16:43,591 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 442 transitions. Word has length 142 [2024-11-19 01:16:43,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:43,592 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 442 transitions. [2024-11-19 01:16:43,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.454545454545454) internal successors, (60), 13 states have internal predecessors, (60), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 01:16:43,593 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 442 transitions. [2024-11-19 01:16:43,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-19 01:16:43,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:43,596 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:43,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 01:16:43,596 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:43,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:43,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1803868504, now seen corresponding path program 1 times [2024-11-19 01:16:43,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:43,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066631706] [2024-11-19 01:16:43,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:43,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:44,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:44,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066631706] [2024-11-19 01:16:44,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066631706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:44,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:44,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 01:16:44,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931418833] [2024-11-19 01:16:44,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:44,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 01:16:44,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:44,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 01:16:44,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:16:44,962 INFO L87 Difference]: Start difference. First operand 310 states and 442 transitions. Second operand has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:46,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:46,007 INFO L93 Difference]: Finished difference Result 577 states and 819 transitions. [2024-11-19 01:16:46,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:16:46,008 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 143 [2024-11-19 01:16:46,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:46,010 INFO L225 Difference]: With dead ends: 577 [2024-11-19 01:16:46,010 INFO L226 Difference]: Without dead ends: 348 [2024-11-19 01:16:46,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-19 01:16:46,012 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 256 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:46,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 663 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 01:16:46,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-19 01:16:46,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 321. [2024-11-19 01:16:46,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 284 states have (on average 1.3661971830985915) internal successors, (388), 284 states have internal predecessors, (388), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-19 01:16:46,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 456 transitions. [2024-11-19 01:16:46,047 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 456 transitions. Word has length 143 [2024-11-19 01:16:46,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:46,047 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 456 transitions. [2024-11-19 01:16:46,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:46,048 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 456 transitions. [2024-11-19 01:16:46,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-19 01:16:46,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:46,049 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:46,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 01:16:46,050 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:46,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:46,050 INFO L85 PathProgramCache]: Analyzing trace with hash 798894449, now seen corresponding path program 1 times [2024-11-19 01:16:46,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:46,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116916459] [2024-11-19 01:16:46,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:46,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:48,650 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:48,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:48,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116916459] [2024-11-19 01:16:48,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116916459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:48,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:48,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 01:16:48,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401704987] [2024-11-19 01:16:48,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:48,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 01:16:48,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:48,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 01:16:48,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:16:48,652 INFO L87 Difference]: Start difference. First operand 321 states and 456 transitions. Second operand has 12 states, 10 states have (on average 6.1) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 01:16:49,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:49,490 INFO L93 Difference]: Finished difference Result 580 states and 816 transitions. [2024-11-19 01:16:49,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:16:49,491 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.1) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 4 states have call successors, (17) Word has length 143 [2024-11-19 01:16:49,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:49,493 INFO L225 Difference]: With dead ends: 580 [2024-11-19 01:16:49,493 INFO L226 Difference]: Without dead ends: 343 [2024-11-19 01:16:49,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:16:49,495 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 272 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:49,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 486 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 01:16:49,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-19 01:16:49,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 321. [2024-11-19 01:16:49,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 284 states have (on average 1.3626760563380282) internal successors, (387), 284 states have internal predecessors, (387), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-19 01:16:49,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 455 transitions. [2024-11-19 01:16:49,531 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 455 transitions. Word has length 143 [2024-11-19 01:16:49,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:49,531 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 455 transitions. [2024-11-19 01:16:49,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.1) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-19 01:16:49,532 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 455 transitions. [2024-11-19 01:16:49,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-19 01:16:49,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:49,534 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:49,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 01:16:49,534 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:49,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:49,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1442242302, now seen corresponding path program 1 times [2024-11-19 01:16:49,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:49,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084022514] [2024-11-19 01:16:49,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:49,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:51,397 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:51,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:51,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084022514] [2024-11-19 01:16:51,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084022514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:51,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:51,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 01:16:51,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425042816] [2024-11-19 01:16:51,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:51,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 01:16:51,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:51,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 01:16:51,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:16:51,400 INFO L87 Difference]: Start difference. First operand 321 states and 455 transitions. Second operand has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 15 states have internal predecessors, (61), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:52,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:52,362 INFO L93 Difference]: Finished difference Result 645 states and 904 transitions. [2024-11-19 01:16:52,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:16:52,363 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 15 states have internal predecessors, (61), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 143 [2024-11-19 01:16:52,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:52,366 INFO L225 Difference]: With dead ends: 645 [2024-11-19 01:16:52,366 INFO L226 Difference]: Without dead ends: 408 [2024-11-19 01:16:52,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-11-19 01:16:52,367 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 513 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:52,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 972 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 01:16:52,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-19 01:16:52,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 373. [2024-11-19 01:16:52,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 336 states have (on average 1.3660714285714286) internal successors, (459), 336 states have internal predecessors, (459), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-19 01:16:52,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 527 transitions. [2024-11-19 01:16:52,406 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 527 transitions. Word has length 143 [2024-11-19 01:16:52,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:52,407 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 527 transitions. [2024-11-19 01:16:52,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 15 states have internal predecessors, (61), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:52,408 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 527 transitions. [2024-11-19 01:16:52,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 01:16:52,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:52,411 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:52,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 01:16:52,411 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:52,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:52,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1234715668, now seen corresponding path program 1 times [2024-11-19 01:16:52,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:52,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198408443] [2024-11-19 01:16:52,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:52,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:54,318 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:54,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:54,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198408443] [2024-11-19 01:16:54,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198408443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:54,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:54,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 01:16:54,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181668771] [2024-11-19 01:16:54,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:54,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 01:16:54,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:54,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 01:16:54,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:16:54,322 INFO L87 Difference]: Start difference. First operand 373 states and 527 transitions. Second operand has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:55,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:55,219 INFO L93 Difference]: Finished difference Result 721 states and 1007 transitions. [2024-11-19 01:16:55,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:16:55,220 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 144 [2024-11-19 01:16:55,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:55,222 INFO L225 Difference]: With dead ends: 721 [2024-11-19 01:16:55,222 INFO L226 Difference]: Without dead ends: 447 [2024-11-19 01:16:55,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-19 01:16:55,225 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 212 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:55,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 604 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 01:16:55,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2024-11-19 01:16:55,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 321. [2024-11-19 01:16:55,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 284 states have (on average 1.3485915492957747) internal successors, (383), 284 states have internal predecessors, (383), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-19 01:16:55,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 451 transitions. [2024-11-19 01:16:55,266 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 451 transitions. Word has length 144 [2024-11-19 01:16:55,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:55,266 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 451 transitions. [2024-11-19 01:16:55,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-19 01:16:55,266 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 451 transitions. [2024-11-19 01:16:55,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 01:16:55,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:55,267 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:55,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 01:16:55,268 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:55,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:55,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1209786370, now seen corresponding path program 1 times [2024-11-19 01:16:55,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:55,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828296696] [2024-11-19 01:16:55,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:55,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:55,640 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-19 01:16:55,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:55,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828296696] [2024-11-19 01:16:55,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828296696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:55,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:55,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:16:55,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605574873] [2024-11-19 01:16:55,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:55,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:16:55,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:55,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:16:55,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:16:55,643 INFO L87 Difference]: Start difference. First operand 321 states and 451 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:56,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:56,025 INFO L93 Difference]: Finished difference Result 603 states and 838 transitions. [2024-11-19 01:16:56,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:16:56,025 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 144 [2024-11-19 01:16:56,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:56,027 INFO L225 Difference]: With dead ends: 603 [2024-11-19 01:16:56,027 INFO L226 Difference]: Without dead ends: 372 [2024-11-19 01:16:56,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:16:56,029 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 224 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:56,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 569 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:16:56,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-19 01:16:56,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 320. [2024-11-19 01:16:56,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 283 states have (on average 1.3498233215547704) internal successors, (382), 283 states have internal predecessors, (382), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-19 01:16:56,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 450 transitions. [2024-11-19 01:16:56,075 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 450 transitions. Word has length 144 [2024-11-19 01:16:56,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:56,076 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 450 transitions. [2024-11-19 01:16:56,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-19 01:16:56,076 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 450 transitions. [2024-11-19 01:16:56,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-19 01:16:56,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:56,077 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:56,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 01:16:56,078 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:56,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:56,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1002677510, now seen corresponding path program 1 times [2024-11-19 01:16:56,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:56,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454802391] [2024-11-19 01:16:56,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:56,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat