./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c -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 6d5cb8d9caea7ccafc5dde86756b709e1bbbadc4ec66724ae09094031008d598 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 20:28:47,595 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 20:28:47,657 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 20:28:47,661 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 20:28:47,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 20:28:47,706 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 20:28:47,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 20:28:47,707 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 20:28:47,708 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 20:28:47,708 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 20:28:47,709 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 20:28:47,709 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 20:28:47,711 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 20:28:47,714 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 20:28:47,714 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 20:28:47,715 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 20:28:47,715 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 20:28:47,715 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 20:28:47,715 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 20:28:47,716 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 20:28:47,716 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 20:28:47,717 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 20:28:47,718 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 20:28:47,718 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 20:28:47,718 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 20:28:47,718 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 20:28:47,718 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 20:28:47,719 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 20:28:47,720 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 20:28:47,720 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 20:28:47,721 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 20:28:47,721 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 20:28:47,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:28:47,722 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 20:28:47,722 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 20:28:47,722 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 20:28:47,722 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 20:28:47,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 20:28:47,723 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 20:28:47,723 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 20:28:47,723 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 20:28:47,724 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 20:28:47,724 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d5cb8d9caea7ccafc5dde86756b709e1bbbadc4ec66724ae09094031008d598 [2024-10-12 20:28:47,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 20:28:47,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 20:28:48,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 20:28:48,002 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 20:28:48,003 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 20:28:48,004 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-10-12 20:28:49,511 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 20:28:49,750 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 20:28:49,752 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-10-12 20:28:49,764 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a709e0b3/797f2f42a2724be9a5721a62d073db91/FLAG3d375094c [2024-10-12 20:28:49,781 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a709e0b3/797f2f42a2724be9a5721a62d073db91 [2024-10-12 20:28:49,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 20:28:49,786 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 20:28:49,788 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 20:28:49,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 20:28:49,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 20:28:49,795 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:28:49" (1/1) ... [2024-10-12 20:28:49,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@933aaf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:28:49, skipping insertion in model container [2024-10-12 20:28:49,798 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:28:49" (1/1) ... [2024-10-12 20:28:49,847 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 20:28:50,119 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c[10276,10289] [2024-10-12 20:28:50,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:28:50,191 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 20:28:50,272 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c[10276,10289] [2024-10-12 20:28:50,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:28:50,334 INFO L204 MainTranslator]: Completed translation [2024-10-12 20:28:50,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:28:50 WrapperNode [2024-10-12 20:28:50,335 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 20:28:50,336 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 20:28:50,336 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 20:28:50,336 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 20:28:50,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:28:50" (1/1) ... [2024-10-12 20:28:50,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:28:50" (1/1) ... [2024-10-12 20:28:50,403 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 892 [2024-10-12 20:28:50,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 20:28:50,404 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 20:28:50,404 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 20:28:50,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 20:28:50,416 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:28:50" (1/1) ... [2024-10-12 20:28:50,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:28:50" (1/1) ... [2024-10-12 20:28:50,423 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:28:50" (1/1) ... [2024-10-12 20:28:50,445 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 20:28:50,446 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:28:50" (1/1) ... [2024-10-12 20:28:50,446 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:28:50" (1/1) ... [2024-10-12 20:28:50,461 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:28:50" (1/1) ... [2024-10-12 20:28:50,467 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:28:50" (1/1) ... [2024-10-12 20:28:50,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:28:50" (1/1) ... [2024-10-12 20:28:50,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:28:50" (1/1) ... [2024-10-12 20:28:50,477 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 20:28:50,479 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 20:28:50,481 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 20:28:50,482 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 20:28:50,483 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:28:50" (1/1) ... [2024-10-12 20:28:50,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:28:50,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:28:50,523 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) [2024-10-12 20:28:50,526 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 [2024-10-12 20:28:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 20:28:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 20:28:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 20:28:50,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 20:28:50,720 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 20:28:50,721 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 20:28:51,503 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-10-12 20:28:51,506 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 20:28:51,557 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 20:28:51,560 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 20:28:51,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:28:51 BoogieIcfgContainer [2024-10-12 20:28:51,560 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 20:28:51,564 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 20:28:51,564 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 20:28:51,567 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 20:28:51,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 08:28:49" (1/3) ... [2024-10-12 20:28:51,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3d3b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:28:51, skipping insertion in model container [2024-10-12 20:28:51,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:28:50" (2/3) ... [2024-10-12 20:28:51,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3d3b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:28:51, skipping insertion in model container [2024-10-12 20:28:51,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:28:51" (3/3) ... [2024-10-12 20:28:51,571 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-10-12 20:28:51,586 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 20:28:51,586 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 20:28:51,652 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 20:28:51,658 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;@6b810acd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 20:28:51,658 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 20:28:51,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 211 states have (on average 1.6824644549763033) internal successors, (355), 212 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:51,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 20:28:51,677 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:28:51,678 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:28:51,678 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:28:51,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:28:51,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1526975210, now seen corresponding path program 1 times [2024-10-12 20:28:51,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:28:51,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253641421] [2024-10-12 20:28:51,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:28:51,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:28:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:28:52,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:28:52,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:28:52,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253641421] [2024-10-12 20:28:52,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253641421] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:28:52,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:28:52,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:28:52,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138744076] [2024-10-12 20:28:52,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:28:52,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:28:52,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:28:52,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:28:52,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:28:52,279 INFO L87 Difference]: Start difference. First operand has 213 states, 211 states have (on average 1.6824644549763033) internal successors, (355), 212 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:52,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:28:52,398 INFO L93 Difference]: Finished difference Result 395 states and 648 transitions. [2024-10-12 20:28:52,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:28:52,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-12 20:28:52,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:28:52,411 INFO L225 Difference]: With dead ends: 395 [2024-10-12 20:28:52,411 INFO L226 Difference]: Without dead ends: 211 [2024-10-12 20:28:52,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:28:52,419 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 93 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:28:52,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 910 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:28:52,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-10-12 20:28:52,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2024-10-12 20:28:52,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.5047619047619047) internal successors, (316), 210 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:52,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 316 transitions. [2024-10-12 20:28:52,486 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 316 transitions. Word has length 78 [2024-10-12 20:28:52,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:28:52,486 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 316 transitions. [2024-10-12 20:28:52,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:52,487 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 316 transitions. [2024-10-12 20:28:52,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-12 20:28:52,491 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:28:52,491 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:28:52,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 20:28:52,495 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:28:52,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:28:52,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1909137144, now seen corresponding path program 1 times [2024-10-12 20:28:52,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:28:52,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884806372] [2024-10-12 20:28:52,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:28:52,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:28:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:28:52,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:28:52,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:28:52,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884806372] [2024-10-12 20:28:52,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884806372] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:28:52,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:28:52,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:28:52,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674855545] [2024-10-12 20:28:52,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:28:52,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:28:52,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:28:52,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:28:52,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:28:52,736 INFO L87 Difference]: Start difference. First operand 211 states and 316 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:52,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:28:52,791 INFO L93 Difference]: Finished difference Result 479 states and 742 transitions. [2024-10-12 20:28:52,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:28:52,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-10-12 20:28:52,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:28:52,797 INFO L225 Difference]: With dead ends: 479 [2024-10-12 20:28:52,797 INFO L226 Difference]: Without dead ends: 308 [2024-10-12 20:28:52,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:28:52,799 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 175 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:28:52,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 557 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:28:52,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-10-12 20:28:52,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 306. [2024-10-12 20:28:52,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.5278688524590165) internal successors, (466), 305 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:52,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 466 transitions. [2024-10-12 20:28:52,822 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 466 transitions. Word has length 108 [2024-10-12 20:28:52,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:28:52,823 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 466 transitions. [2024-10-12 20:28:52,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:52,823 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 466 transitions. [2024-10-12 20:28:52,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-12 20:28:52,832 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:28:52,832 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:28:52,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 20:28:52,833 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:28:52,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:28:52,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1574101951, now seen corresponding path program 1 times [2024-10-12 20:28:52,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:28:52,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856286389] [2024-10-12 20:28:52,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:28:52,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:28:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:28:53,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:28:53,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:28:53,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856286389] [2024-10-12 20:28:53,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856286389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:28:53,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:28:53,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:28:53,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655188836] [2024-10-12 20:28:53,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:28:53,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:28:53,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:28:53,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:28:53,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:28:53,013 INFO L87 Difference]: Start difference. First operand 306 states and 466 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:53,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:28:53,045 INFO L93 Difference]: Finished difference Result 734 states and 1147 transitions. [2024-10-12 20:28:53,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:28:53,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-10-12 20:28:53,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:28:53,048 INFO L225 Difference]: With dead ends: 734 [2024-10-12 20:28:53,048 INFO L226 Difference]: Without dead ends: 474 [2024-10-12 20:28:53,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:28:53,054 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 162 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:28:53,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 600 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:28:53,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-10-12 20:28:53,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 472. [2024-10-12 20:28:53,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.545647558386412) internal successors, (728), 471 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:53,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 728 transitions. [2024-10-12 20:28:53,094 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 728 transitions. Word has length 110 [2024-10-12 20:28:53,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:28:53,095 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 728 transitions. [2024-10-12 20:28:53,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:53,096 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 728 transitions. [2024-10-12 20:28:53,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-12 20:28:53,101 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:28:53,102 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:28:53,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 20:28:53,102 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:28:53,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:28:53,105 INFO L85 PathProgramCache]: Analyzing trace with hash -208708936, now seen corresponding path program 1 times [2024-10-12 20:28:53,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:28:53,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862875944] [2024-10-12 20:28:53,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:28:53,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:28:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:28:53,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:28:53,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:28:53,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862875944] [2024-10-12 20:28:53,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862875944] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:28:53,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:28:53,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:28:53,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974535912] [2024-10-12 20:28:53,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:28:53,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:28:53,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:28:53,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:28:53,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:28:53,216 INFO L87 Difference]: Start difference. First operand 472 states and 728 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:53,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:28:53,247 INFO L93 Difference]: Finished difference Result 1174 states and 1843 transitions. [2024-10-12 20:28:53,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:28:53,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2024-10-12 20:28:53,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:28:53,251 INFO L225 Difference]: With dead ends: 1174 [2024-10-12 20:28:53,251 INFO L226 Difference]: Without dead ends: 754 [2024-10-12 20:28:53,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:28:53,258 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 149 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:28:53,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 517 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:28:53,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-10-12 20:28:53,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 752. [2024-10-12 20:28:53,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 751 states have (on average 1.5552596537949401) internal successors, (1168), 751 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:53,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1168 transitions. [2024-10-12 20:28:53,281 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1168 transitions. Word has length 112 [2024-10-12 20:28:53,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:28:53,283 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1168 transitions. [2024-10-12 20:28:53,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:53,283 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1168 transitions. [2024-10-12 20:28:53,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-12 20:28:53,286 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:28:53,286 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:28:53,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 20:28:53,286 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:28:53,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:28:53,288 INFO L85 PathProgramCache]: Analyzing trace with hash 246757779, now seen corresponding path program 1 times [2024-10-12 20:28:53,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:28:53,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640069847] [2024-10-12 20:28:53,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:28:53,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:28:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:28:53,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:28:53,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:28:53,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640069847] [2024-10-12 20:28:53,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640069847] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:28:53,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:28:53,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:28:53,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066475761] [2024-10-12 20:28:53,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:28:53,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:28:53,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:28:53,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:28:53,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:28:53,416 INFO L87 Difference]: Start difference. First operand 752 states and 1168 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:53,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:28:53,452 INFO L93 Difference]: Finished difference Result 1900 states and 2983 transitions. [2024-10-12 20:28:53,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:28:53,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-10-12 20:28:53,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:28:53,459 INFO L225 Difference]: With dead ends: 1900 [2024-10-12 20:28:53,460 INFO L226 Difference]: Without dead ends: 1206 [2024-10-12 20:28:53,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:28:53,463 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 136 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:28:53,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 528 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:28:53,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2024-10-12 20:28:53,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1204. [2024-10-12 20:28:53,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 1203 states have (on average 1.5561097256857854) internal successors, (1872), 1203 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:53,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1872 transitions. [2024-10-12 20:28:53,487 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1872 transitions. Word has length 114 [2024-10-12 20:28:53,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:28:53,487 INFO L471 AbstractCegarLoop]: Abstraction has 1204 states and 1872 transitions. [2024-10-12 20:28:53,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:53,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1872 transitions. [2024-10-12 20:28:53,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-12 20:28:53,491 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:28:53,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:28:53,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 20:28:53,492 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:28:53,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:28:53,493 INFO L85 PathProgramCache]: Analyzing trace with hash -311262755, now seen corresponding path program 1 times [2024-10-12 20:28:53,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:28:53,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149529318] [2024-10-12 20:28:53,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:28:53,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:28:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:28:53,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:28:53,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:28:53,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149529318] [2024-10-12 20:28:53,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149529318] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:28:53,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:28:53,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:28:53,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790587870] [2024-10-12 20:28:53,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:28:53,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:28:53,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:28:53,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:28:53,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:28:53,597 INFO L87 Difference]: Start difference. First operand 1204 states and 1872 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:53,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:28:53,635 INFO L93 Difference]: Finished difference Result 3030 states and 4735 transitions. [2024-10-12 20:28:53,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:28:53,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-10-12 20:28:53,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:28:53,643 INFO L225 Difference]: With dead ends: 3030 [2024-10-12 20:28:53,644 INFO L226 Difference]: Without dead ends: 1890 [2024-10-12 20:28:53,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:28:53,648 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 123 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:28:53,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 477 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:28:53,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2024-10-12 20:28:53,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1888. [2024-10-12 20:28:53,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1888 states, 1887 states have (on average 1.5474297827239003) internal successors, (2920), 1887 states have internal predecessors, (2920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:53,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1888 states to 1888 states and 2920 transitions. [2024-10-12 20:28:53,690 INFO L78 Accepts]: Start accepts. Automaton has 1888 states and 2920 transitions. Word has length 116 [2024-10-12 20:28:53,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:28:53,691 INFO L471 AbstractCegarLoop]: Abstraction has 1888 states and 2920 transitions. [2024-10-12 20:28:53,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:53,692 INFO L276 IsEmpty]: Start isEmpty. Operand 1888 states and 2920 transitions. [2024-10-12 20:28:53,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-12 20:28:53,696 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:28:53,696 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:28:53,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 20:28:53,697 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:28:53,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:28:53,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1405439624, now seen corresponding path program 1 times [2024-10-12 20:28:53,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:28:53,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607988814] [2024-10-12 20:28:53,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:28:53,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:28:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:28:53,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:28:53,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:28:53,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607988814] [2024-10-12 20:28:53,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607988814] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:28:53,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:28:53,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:28:53,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912269120] [2024-10-12 20:28:53,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:28:53,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:28:53,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:28:53,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:28:53,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:28:53,919 INFO L87 Difference]: Start difference. First operand 1888 states and 2920 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:54,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:28:54,336 INFO L93 Difference]: Finished difference Result 16373 states and 25283 transitions. [2024-10-12 20:28:54,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 20:28:54,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-10-12 20:28:54,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:28:54,392 INFO L225 Difference]: With dead ends: 16373 [2024-10-12 20:28:54,392 INFO L226 Difference]: Without dead ends: 14555 [2024-10-12 20:28:54,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-10-12 20:28:54,403 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 2403 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:28:54,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2403 Valid, 1882 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:28:54,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14555 states. [2024-10-12 20:28:54,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14555 to 3649. [2024-10-12 20:28:54,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3649 states, 3648 states have (on average 1.5169956140350878) internal successors, (5534), 3648 states have internal predecessors, (5534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:54,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3649 states to 3649 states and 5534 transitions. [2024-10-12 20:28:54,569 INFO L78 Accepts]: Start accepts. Automaton has 3649 states and 5534 transitions. Word has length 118 [2024-10-12 20:28:54,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:28:54,571 INFO L471 AbstractCegarLoop]: Abstraction has 3649 states and 5534 transitions. [2024-10-12 20:28:54,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:54,571 INFO L276 IsEmpty]: Start isEmpty. Operand 3649 states and 5534 transitions. [2024-10-12 20:28:54,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-12 20:28:54,578 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:28:54,578 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:28:54,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 20:28:54,578 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:28:54,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:28:54,579 INFO L85 PathProgramCache]: Analyzing trace with hash -2015160990, now seen corresponding path program 1 times [2024-10-12 20:28:54,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:28:54,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162809018] [2024-10-12 20:28:54,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:28:54,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:28:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:28:54,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:28:54,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:28:54,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162809018] [2024-10-12 20:28:54,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162809018] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:28:54,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:28:54,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:28:54,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854561541] [2024-10-12 20:28:54,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:28:54,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:28:54,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:28:54,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:28:54,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:28:54,734 INFO L87 Difference]: Start difference. First operand 3649 states and 5534 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:54,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:28:54,808 INFO L93 Difference]: Finished difference Result 8385 states and 12720 transitions. [2024-10-12 20:28:54,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:28:54,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-10-12 20:28:54,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:28:54,834 INFO L225 Difference]: With dead ends: 8385 [2024-10-12 20:28:54,835 INFO L226 Difference]: Without dead ends: 4804 [2024-10-12 20:28:54,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:28:54,842 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 186 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:28:54,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 590 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:28:54,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4804 states. [2024-10-12 20:28:54,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4804 to 4802. [2024-10-12 20:28:54,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4802 states, 4801 states have (on average 1.4930222870235368) internal successors, (7168), 4801 states have internal predecessors, (7168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:54,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4802 states to 4802 states and 7168 transitions. [2024-10-12 20:28:54,956 INFO L78 Accepts]: Start accepts. Automaton has 4802 states and 7168 transitions. Word has length 122 [2024-10-12 20:28:54,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:28:54,957 INFO L471 AbstractCegarLoop]: Abstraction has 4802 states and 7168 transitions. [2024-10-12 20:28:54,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:54,957 INFO L276 IsEmpty]: Start isEmpty. Operand 4802 states and 7168 transitions. [2024-10-12 20:28:54,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-12 20:28:54,968 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:28:54,968 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:28:54,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 20:28:54,969 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:28:54,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:28:54,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1905337537, now seen corresponding path program 1 times [2024-10-12 20:28:54,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:28:54,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397967802] [2024-10-12 20:28:54,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:28:54,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:28:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:28:55,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:28:55,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:28:55,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397967802] [2024-10-12 20:28:55,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397967802] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:28:55,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:28:55,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:28:55,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462670746] [2024-10-12 20:28:55,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:28:55,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:28:55,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:28:55,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:28:55,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:28:55,363 INFO L87 Difference]: Start difference. First operand 4802 states and 7168 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:55,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:28:55,645 INFO L93 Difference]: Finished difference Result 9537 states and 14257 transitions. [2024-10-12 20:28:55,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:28:55,646 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-10-12 20:28:55,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:28:55,656 INFO L225 Difference]: With dead ends: 9537 [2024-10-12 20:28:55,656 INFO L226 Difference]: Without dead ends: 4804 [2024-10-12 20:28:55,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-12 20:28:55,668 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 597 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:28:55,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 993 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:28:55,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4804 states. [2024-10-12 20:28:55,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4804 to 4802. [2024-10-12 20:28:55,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4802 states, 4801 states have (on average 1.4761508019162675) internal successors, (7087), 4801 states have internal predecessors, (7087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:55,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4802 states to 4802 states and 7087 transitions. [2024-10-12 20:28:55,767 INFO L78 Accepts]: Start accepts. Automaton has 4802 states and 7087 transitions. Word has length 122 [2024-10-12 20:28:55,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:28:55,768 INFO L471 AbstractCegarLoop]: Abstraction has 4802 states and 7087 transitions. [2024-10-12 20:28:55,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:55,769 INFO L276 IsEmpty]: Start isEmpty. Operand 4802 states and 7087 transitions. [2024-10-12 20:28:55,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-12 20:28:55,778 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:28:55,778 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:28:55,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 20:28:55,778 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:28:55,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:28:55,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1658606351, now seen corresponding path program 1 times [2024-10-12 20:28:55,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:28:55,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218902127] [2024-10-12 20:28:55,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:28:55,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:28:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:28:56,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:28:56,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:28:56,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218902127] [2024-10-12 20:28:56,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218902127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:28:56,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:28:56,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:28:56,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628926922] [2024-10-12 20:28:56,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:28:56,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:28:56,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:28:56,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:28:56,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:28:56,038 INFO L87 Difference]: Start difference. First operand 4802 states and 7087 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:56,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:28:56,298 INFO L93 Difference]: Finished difference Result 24884 states and 36791 transitions. [2024-10-12 20:28:56,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:28:56,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-10-12 20:28:56,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:28:56,339 INFO L225 Difference]: With dead ends: 24884 [2024-10-12 20:28:56,339 INFO L226 Difference]: Without dead ends: 21154 [2024-10-12 20:28:56,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:28:56,352 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 1573 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1573 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:28:56,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1573 Valid, 1548 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:28:56,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21154 states. [2024-10-12 20:28:56,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21154 to 8725. [2024-10-12 20:28:56,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8725 states, 8724 states have (on average 1.4681338835396607) internal successors, (12808), 8724 states have internal predecessors, (12808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:56,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8725 states to 8725 states and 12808 transitions. [2024-10-12 20:28:56,726 INFO L78 Accepts]: Start accepts. Automaton has 8725 states and 12808 transitions. Word has length 123 [2024-10-12 20:28:56,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:28:56,726 INFO L471 AbstractCegarLoop]: Abstraction has 8725 states and 12808 transitions. [2024-10-12 20:28:56,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:56,727 INFO L276 IsEmpty]: Start isEmpty. Operand 8725 states and 12808 transitions. [2024-10-12 20:28:56,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-12 20:28:56,747 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:28:56,747 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:28:56,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 20:28:56,747 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:28:56,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:28:56,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1686943615, now seen corresponding path program 1 times [2024-10-12 20:28:56,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:28:56,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172638323] [2024-10-12 20:28:56,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:28:56,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:28:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:28:56,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:28:56,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:28:56,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172638323] [2024-10-12 20:28:56,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172638323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:28:56,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:28:56,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:28:56,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287074975] [2024-10-12 20:28:56,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:28:56,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:28:56,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:28:56,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:28:56,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:28:56,992 INFO L87 Difference]: Start difference. First operand 8725 states and 12808 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:57,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:28:57,342 INFO L93 Difference]: Finished difference Result 28672 states and 42339 transitions. [2024-10-12 20:28:57,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:28:57,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-10-12 20:28:57,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:28:57,394 INFO L225 Difference]: With dead ends: 28672 [2024-10-12 20:28:57,395 INFO L226 Difference]: Without dead ends: 24942 [2024-10-12 20:28:57,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:28:57,410 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 1435 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:28:57,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 1650 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:28:57,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24942 states. [2024-10-12 20:28:57,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24942 to 14570. [2024-10-12 20:28:57,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14570 states, 14569 states have (on average 1.4637243462145653) internal successors, (21325), 14569 states have internal predecessors, (21325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:57,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14570 states to 14570 states and 21325 transitions. [2024-10-12 20:28:57,883 INFO L78 Accepts]: Start accepts. Automaton has 14570 states and 21325 transitions. Word has length 123 [2024-10-12 20:28:57,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:28:57,883 INFO L471 AbstractCegarLoop]: Abstraction has 14570 states and 21325 transitions. [2024-10-12 20:28:57,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:57,891 INFO L276 IsEmpty]: Start isEmpty. Operand 14570 states and 21325 transitions. [2024-10-12 20:28:57,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-12 20:28:57,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:28:57,976 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:28:57,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 20:28:57,977 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:28:57,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:28:57,977 INFO L85 PathProgramCache]: Analyzing trace with hash -285827830, now seen corresponding path program 1 times [2024-10-12 20:28:57,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:28:57,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179555164] [2024-10-12 20:28:57,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:28:57,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:28:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:28:58,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:28:58,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:28:58,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179555164] [2024-10-12 20:28:58,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179555164] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:28:58,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:28:58,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:28:58,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401767615] [2024-10-12 20:28:58,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:28:58,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:28:58,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:28:58,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:28:58,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:28:58,206 INFO L87 Difference]: Start difference. First operand 14570 states and 21325 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:58,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:28:58,537 INFO L93 Difference]: Finished difference Result 32542 states and 48009 transitions. [2024-10-12 20:28:58,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:28:58,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-10-12 20:28:58,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:28:58,588 INFO L225 Difference]: With dead ends: 32542 [2024-10-12 20:28:58,589 INFO L226 Difference]: Without dead ends: 28812 [2024-10-12 20:28:58,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:28:58,599 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 1489 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:28:58,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 1876 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:28:58,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28812 states. [2024-10-12 20:28:58,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28812 to 18530. [2024-10-12 20:28:58,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18530 states, 18529 states have (on average 1.4644611150089049) internal successors, (27135), 18529 states have internal predecessors, (27135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:58,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18530 states to 18530 states and 27135 transitions. [2024-10-12 20:28:58,969 INFO L78 Accepts]: Start accepts. Automaton has 18530 states and 27135 transitions. Word has length 123 [2024-10-12 20:28:58,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:28:58,969 INFO L471 AbstractCegarLoop]: Abstraction has 18530 states and 27135 transitions. [2024-10-12 20:28:58,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:58,970 INFO L276 IsEmpty]: Start isEmpty. Operand 18530 states and 27135 transitions. [2024-10-12 20:28:58,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-12 20:28:58,996 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:28:58,996 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:28:58,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 20:28:58,997 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:28:58,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:28:58,997 INFO L85 PathProgramCache]: Analyzing trace with hash -971539581, now seen corresponding path program 1 times [2024-10-12 20:28:58,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:28:58,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258640725] [2024-10-12 20:28:58,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:28:58,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:28:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:28:59,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:28:59,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:28:59,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258640725] [2024-10-12 20:28:59,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258640725] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:28:59,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:28:59,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:28:59,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171599378] [2024-10-12 20:28:59,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:28:59,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:28:59,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:28:59,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:28:59,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:28:59,278 INFO L87 Difference]: Start difference. First operand 18530 states and 27135 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:28:59,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:28:59,678 INFO L93 Difference]: Finished difference Result 36471 states and 53770 transitions. [2024-10-12 20:28:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:28:59,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-10-12 20:28:59,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:28:59,753 INFO L225 Difference]: With dead ends: 36471 [2024-10-12 20:28:59,754 INFO L226 Difference]: Without dead ends: 32741 [2024-10-12 20:28:59,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:28:59,765 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 1717 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:28:59,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 1773 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:28:59,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32741 states. [2024-10-12 20:29:00,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32741 to 22499. [2024-10-12 20:29:00,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22499 states, 22498 states have (on average 1.4650191128100276) internal successors, (32960), 22498 states have internal predecessors, (32960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:00,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22499 states to 22499 states and 32960 transitions. [2024-10-12 20:29:00,186 INFO L78 Accepts]: Start accepts. Automaton has 22499 states and 32960 transitions. Word has length 123 [2024-10-12 20:29:00,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:00,186 INFO L471 AbstractCegarLoop]: Abstraction has 22499 states and 32960 transitions. [2024-10-12 20:29:00,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:00,186 INFO L276 IsEmpty]: Start isEmpty. Operand 22499 states and 32960 transitions. [2024-10-12 20:29:00,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-12 20:29:00,213 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:00,213 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:00,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 20:29:00,214 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:00,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:00,214 INFO L85 PathProgramCache]: Analyzing trace with hash -488571038, now seen corresponding path program 1 times [2024-10-12 20:29:00,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:00,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688311215] [2024-10-12 20:29:00,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:00,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:00,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:00,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:00,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688311215] [2024-10-12 20:29:00,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688311215] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:00,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:00,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:29:00,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96087703] [2024-10-12 20:29:00,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:00,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:29:00,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:00,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:29:00,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:29:00,416 INFO L87 Difference]: Start difference. First operand 22499 states and 32960 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:00,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:00,786 INFO L93 Difference]: Finished difference Result 38061 states and 56156 transitions. [2024-10-12 20:29:00,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:29:00,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-10-12 20:29:00,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:00,842 INFO L225 Difference]: With dead ends: 38061 [2024-10-12 20:29:00,842 INFO L226 Difference]: Without dead ends: 35531 [2024-10-12 20:29:00,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:29:00,857 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 1736 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1736 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:00,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1736 Valid, 1308 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:29:00,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35531 states. [2024-10-12 20:29:01,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35531 to 25289. [2024-10-12 20:29:01,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25289 states, 25288 states have (on average 1.4673362859854477) internal successors, (37106), 25288 states have internal predecessors, (37106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:01,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25289 states to 25289 states and 37106 transitions. [2024-10-12 20:29:01,395 INFO L78 Accepts]: Start accepts. Automaton has 25289 states and 37106 transitions. Word has length 123 [2024-10-12 20:29:01,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:01,396 INFO L471 AbstractCegarLoop]: Abstraction has 25289 states and 37106 transitions. [2024-10-12 20:29:01,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:01,396 INFO L276 IsEmpty]: Start isEmpty. Operand 25289 states and 37106 transitions. [2024-10-12 20:29:01,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-12 20:29:01,428 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:01,428 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:01,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 20:29:01,429 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:01,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:01,429 INFO L85 PathProgramCache]: Analyzing trace with hash 10739123, now seen corresponding path program 1 times [2024-10-12 20:29:01,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:01,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78973023] [2024-10-12 20:29:01,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:01,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:01,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:01,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:01,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78973023] [2024-10-12 20:29:01,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78973023] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:01,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:01,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:29:01,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115165597] [2024-10-12 20:29:01,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:01,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:29:01,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:01,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:29:01,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:01,550 INFO L87 Difference]: Start difference. First operand 25289 states and 37106 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:02,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:02,182 INFO L93 Difference]: Finished difference Result 74046 states and 108589 transitions. [2024-10-12 20:29:02,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:29:02,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-12 20:29:02,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:02,284 INFO L225 Difference]: With dead ends: 74046 [2024-10-12 20:29:02,285 INFO L226 Difference]: Without dead ends: 50235 [2024-10-12 20:29:02,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:02,325 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 153 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:02,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 334 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:29:02,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50235 states. [2024-10-12 20:29:02,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50235 to 50233. [2024-10-12 20:29:03,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50233 states, 50232 states have (on average 1.4585523172479695) internal successors, (73266), 50232 states have internal predecessors, (73266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:03,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50233 states to 50233 states and 73266 transitions. [2024-10-12 20:29:03,125 INFO L78 Accepts]: Start accepts. Automaton has 50233 states and 73266 transitions. Word has length 125 [2024-10-12 20:29:03,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:03,125 INFO L471 AbstractCegarLoop]: Abstraction has 50233 states and 73266 transitions. [2024-10-12 20:29:03,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:03,125 INFO L276 IsEmpty]: Start isEmpty. Operand 50233 states and 73266 transitions. [2024-10-12 20:29:03,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-12 20:29:03,170 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:03,170 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:03,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 20:29:03,171 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:03,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:03,171 INFO L85 PathProgramCache]: Analyzing trace with hash 335061902, now seen corresponding path program 1 times [2024-10-12 20:29:03,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:03,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567704407] [2024-10-12 20:29:03,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:03,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:03,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:03,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:03,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567704407] [2024-10-12 20:29:03,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567704407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:03,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:03,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:29:03,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476013804] [2024-10-12 20:29:03,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:03,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:29:03,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:03,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:29:03,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:03,256 INFO L87 Difference]: Start difference. First operand 50233 states and 73266 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:04,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:04,039 INFO L93 Difference]: Finished difference Result 146458 states and 213193 transitions. [2024-10-12 20:29:04,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:29:04,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-12 20:29:04,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:04,217 INFO L225 Difference]: With dead ends: 146458 [2024-10-12 20:29:04,218 INFO L226 Difference]: Without dead ends: 99676 [2024-10-12 20:29:04,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:04,293 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 136 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:04,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 346 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:29:04,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99676 states. [2024-10-12 20:29:05,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99676 to 99674. [2024-10-12 20:29:05,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99674 states, 99673 states have (on average 1.447784254512255) internal successors, (144305), 99673 states have internal predecessors, (144305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:06,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99674 states to 99674 states and 144305 transitions. [2024-10-12 20:29:06,133 INFO L78 Accepts]: Start accepts. Automaton has 99674 states and 144305 transitions. Word has length 125 [2024-10-12 20:29:06,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:06,134 INFO L471 AbstractCegarLoop]: Abstraction has 99674 states and 144305 transitions. [2024-10-12 20:29:06,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:06,134 INFO L276 IsEmpty]: Start isEmpty. Operand 99674 states and 144305 transitions. [2024-10-12 20:29:06,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-12 20:29:06,244 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:06,244 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:06,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 20:29:06,244 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:06,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:06,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1608929907, now seen corresponding path program 1 times [2024-10-12 20:29:06,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:06,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846551761] [2024-10-12 20:29:06,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:06,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:06,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:06,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:06,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846551761] [2024-10-12 20:29:06,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846551761] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:06,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:06,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:29:06,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061685581] [2024-10-12 20:29:06,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:06,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:29:06,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:06,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:29:06,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:29:06,407 INFO L87 Difference]: Start difference. First operand 99674 states and 144305 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:07,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:07,818 INFO L93 Difference]: Finished difference Result 267470 states and 388501 transitions. [2024-10-12 20:29:07,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:29:07,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-12 20:29:07,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:08,020 INFO L225 Difference]: With dead ends: 267470 [2024-10-12 20:29:08,020 INFO L226 Difference]: Without dead ends: 167834 [2024-10-12 20:29:08,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:29:08,096 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1103 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:08,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 247 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:29:08,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167834 states. [2024-10-12 20:29:10,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167834 to 167832. [2024-10-12 20:29:10,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167832 states, 167831 states have (on average 1.4460618121801097) internal successors, (242694), 167831 states have internal predecessors, (242694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:10,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167832 states to 167832 states and 242694 transitions. [2024-10-12 20:29:10,744 INFO L78 Accepts]: Start accepts. Automaton has 167832 states and 242694 transitions. Word has length 125 [2024-10-12 20:29:10,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:10,745 INFO L471 AbstractCegarLoop]: Abstraction has 167832 states and 242694 transitions. [2024-10-12 20:29:10,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:10,745 INFO L276 IsEmpty]: Start isEmpty. Operand 167832 states and 242694 transitions. [2024-10-12 20:29:10,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-12 20:29:10,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:10,901 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:10,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 20:29:10,901 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:10,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:10,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1774976489, now seen corresponding path program 1 times [2024-10-12 20:29:10,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:10,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388460928] [2024-10-12 20:29:10,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:10,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:11,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:11,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:11,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388460928] [2024-10-12 20:29:11,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388460928] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:11,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:11,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:29:11,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126525467] [2024-10-12 20:29:11,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:11,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:29:11,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:11,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:29:11,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:29:11,715 INFO L87 Difference]: Start difference. First operand 167832 states and 242694 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:12,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:12,695 INFO L93 Difference]: Finished difference Result 335608 states and 485325 transitions. [2024-10-12 20:29:12,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:29:12,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-12 20:29:12,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:12,887 INFO L225 Difference]: With dead ends: 335608 [2024-10-12 20:29:12,887 INFO L226 Difference]: Without dead ends: 167832 [2024-10-12 20:29:13,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:29:13,001 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 725 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:13,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 167 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:29:13,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167832 states. [2024-10-12 20:29:15,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167832 to 167832. [2024-10-12 20:29:16,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167832 states, 167831 states have (on average 1.4337518098563435) internal successors, (240628), 167831 states have internal predecessors, (240628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:16,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167832 states to 167832 states and 240628 transitions. [2024-10-12 20:29:16,489 INFO L78 Accepts]: Start accepts. Automaton has 167832 states and 240628 transitions. Word has length 125 [2024-10-12 20:29:16,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:16,489 INFO L471 AbstractCegarLoop]: Abstraction has 167832 states and 240628 transitions. [2024-10-12 20:29:16,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:16,489 INFO L276 IsEmpty]: Start isEmpty. Operand 167832 states and 240628 transitions. [2024-10-12 20:29:16,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-12 20:29:16,661 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:16,661 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:16,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 20:29:16,662 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:16,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:16,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1215332681, now seen corresponding path program 1 times [2024-10-12 20:29:16,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:16,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190158135] [2024-10-12 20:29:16,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:16,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:16,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:16,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:16,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190158135] [2024-10-12 20:29:16,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190158135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:16,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:16,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:29:16,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871246685] [2024-10-12 20:29:16,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:16,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:29:16,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:16,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:29:16,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:29:16,807 INFO L87 Difference]: Start difference. First operand 167832 states and 240628 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:18,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:18,420 INFO L93 Difference]: Finished difference Result 248145 states and 356666 transitions. [2024-10-12 20:29:18,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:29:18,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-12 20:29:18,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:18,671 INFO L225 Difference]: With dead ends: 248145 [2024-10-12 20:29:18,671 INFO L226 Difference]: Without dead ends: 84447 [2024-10-12 20:29:18,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:29:18,737 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 729 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:18,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 159 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:29:18,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84447 states. [2024-10-12 20:29:19,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84447 to 84447. [2024-10-12 20:29:19,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84447 states, 84446 states have (on average 1.4310328493948796) internal successors, (120845), 84446 states have internal predecessors, (120845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:20,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84447 states to 84447 states and 120845 transitions. [2024-10-12 20:29:20,128 INFO L78 Accepts]: Start accepts. Automaton has 84447 states and 120845 transitions. Word has length 125 [2024-10-12 20:29:20,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:20,128 INFO L471 AbstractCegarLoop]: Abstraction has 84447 states and 120845 transitions. [2024-10-12 20:29:20,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:20,129 INFO L276 IsEmpty]: Start isEmpty. Operand 84447 states and 120845 transitions. [2024-10-12 20:29:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-12 20:29:20,185 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:20,185 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:20,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 20:29:20,185 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:20,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:20,186 INFO L85 PathProgramCache]: Analyzing trace with hash 809210579, now seen corresponding path program 1 times [2024-10-12 20:29:20,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:20,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214951538] [2024-10-12 20:29:20,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:20,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:20,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:20,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214951538] [2024-10-12 20:29:20,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214951538] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:20,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:20,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:29:20,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046973620] [2024-10-12 20:29:20,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:20,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 20:29:20,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:20,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 20:29:20,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:29:20,307 INFO L87 Difference]: Start difference. First operand 84447 states and 120845 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:20,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:20,726 INFO L93 Difference]: Finished difference Result 168838 states and 241629 transitions. [2024-10-12 20:29:20,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:29:20,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-12 20:29:20,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:20,819 INFO L225 Difference]: With dead ends: 168838 [2024-10-12 20:29:20,819 INFO L226 Difference]: Without dead ends: 84447 [2024-10-12 20:29:20,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:29:20,875 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 694 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:20,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 175 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:29:20,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84447 states. [2024-10-12 20:29:21,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84447 to 84447. [2024-10-12 20:29:22,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84447 states, 84446 states have (on average 1.4183028207375128) internal successors, (119770), 84446 states have internal predecessors, (119770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:22,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84447 states to 84447 states and 119770 transitions. [2024-10-12 20:29:22,118 INFO L78 Accepts]: Start accepts. Automaton has 84447 states and 119770 transitions. Word has length 125 [2024-10-12 20:29:22,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:22,118 INFO L471 AbstractCegarLoop]: Abstraction has 84447 states and 119770 transitions. [2024-10-12 20:29:22,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:22,119 INFO L276 IsEmpty]: Start isEmpty. Operand 84447 states and 119770 transitions. [2024-10-12 20:29:22,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-12 20:29:22,178 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:22,178 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:22,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 20:29:22,178 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:22,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:22,179 INFO L85 PathProgramCache]: Analyzing trace with hash -179417933, now seen corresponding path program 1 times [2024-10-12 20:29:22,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:22,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796927969] [2024-10-12 20:29:22,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:22,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:22,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:22,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:22,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796927969] [2024-10-12 20:29:22,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796927969] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:22,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:22,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:29:22,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734480191] [2024-10-12 20:29:22,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:22,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:29:22,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:22,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:29:22,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:22,312 INFO L87 Difference]: Start difference. First operand 84447 states and 119770 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:23,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:23,346 INFO L93 Difference]: Finished difference Result 148931 states and 212124 transitions. [2024-10-12 20:29:23,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:29:23,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-12 20:29:23,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:23,432 INFO L225 Difference]: With dead ends: 148931 [2024-10-12 20:29:23,432 INFO L226 Difference]: Without dead ends: 69557 [2024-10-12 20:29:23,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:23,478 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 101 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:23,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 446 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:29:23,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69557 states. [2024-10-12 20:29:24,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69557 to 69555. [2024-10-12 20:29:24,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69555 states, 69554 states have (on average 1.4204215429738045) internal successors, (98796), 69554 states have internal predecessors, (98796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:24,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69555 states to 69555 states and 98796 transitions. [2024-10-12 20:29:24,413 INFO L78 Accepts]: Start accepts. Automaton has 69555 states and 98796 transitions. Word has length 125 [2024-10-12 20:29:24,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:24,413 INFO L471 AbstractCegarLoop]: Abstraction has 69555 states and 98796 transitions. [2024-10-12 20:29:24,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:24,413 INFO L276 IsEmpty]: Start isEmpty. Operand 69555 states and 98796 transitions. [2024-10-12 20:29:24,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-12 20:29:24,447 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:24,447 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:24,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 20:29:24,448 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:24,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:24,448 INFO L85 PathProgramCache]: Analyzing trace with hash 756549592, now seen corresponding path program 1 times [2024-10-12 20:29:24,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:24,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929580034] [2024-10-12 20:29:24,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:24,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:25,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:25,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:25,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929580034] [2024-10-12 20:29:25,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929580034] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:25,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:25,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:29:25,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444063221] [2024-10-12 20:29:25,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:25,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:29:25,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:25,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:29:25,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:25,105 INFO L87 Difference]: Start difference. First operand 69555 states and 98796 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:25,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:25,323 INFO L93 Difference]: Finished difference Result 101799 states and 144558 transitions. [2024-10-12 20:29:25,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:29:25,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-12 20:29:25,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:25,363 INFO L225 Difference]: With dead ends: 101799 [2024-10-12 20:29:25,363 INFO L226 Difference]: Without dead ends: 35287 [2024-10-12 20:29:25,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:25,401 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 105 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:25,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 432 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:29:25,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35287 states. [2024-10-12 20:29:25,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35287 to 35285. [2024-10-12 20:29:25,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35285 states, 35284 states have (on average 1.4087971885273778) internal successors, (49708), 35284 states have internal predecessors, (49708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:25,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35285 states to 35285 states and 49708 transitions. [2024-10-12 20:29:25,755 INFO L78 Accepts]: Start accepts. Automaton has 35285 states and 49708 transitions. Word has length 125 [2024-10-12 20:29:25,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:25,755 INFO L471 AbstractCegarLoop]: Abstraction has 35285 states and 49708 transitions. [2024-10-12 20:29:25,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:25,756 INFO L276 IsEmpty]: Start isEmpty. Operand 35285 states and 49708 transitions. [2024-10-12 20:29:25,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-12 20:29:25,772 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:25,772 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:25,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-12 20:29:25,772 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:25,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:25,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1484332499, now seen corresponding path program 1 times [2024-10-12 20:29:25,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:25,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886097943] [2024-10-12 20:29:25,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:25,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:26,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:26,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:26,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886097943] [2024-10-12 20:29:26,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886097943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:26,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:26,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:29:26,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801345081] [2024-10-12 20:29:26,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:26,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:29:26,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:26,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:29:26,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:29:26,113 INFO L87 Difference]: Start difference. First operand 35285 states and 49708 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:27,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:27,288 INFO L93 Difference]: Finished difference Result 87845 states and 123265 transitions. [2024-10-12 20:29:27,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 20:29:27,288 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-12 20:29:27,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:27,355 INFO L225 Difference]: With dead ends: 87845 [2024-10-12 20:29:27,355 INFO L226 Difference]: Without dead ends: 54358 [2024-10-12 20:29:27,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-12 20:29:27,384 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 903 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:27,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 815 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:29:27,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54358 states. [2024-10-12 20:29:27,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54358 to 35360. [2024-10-12 20:29:27,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35360 states, 35359 states have (on average 1.4084108713481716) internal successors, (49800), 35359 states have internal predecessors, (49800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:27,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35360 states to 35360 states and 49800 transitions. [2024-10-12 20:29:27,827 INFO L78 Accepts]: Start accepts. Automaton has 35360 states and 49800 transitions. Word has length 125 [2024-10-12 20:29:27,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:27,827 INFO L471 AbstractCegarLoop]: Abstraction has 35360 states and 49800 transitions. [2024-10-12 20:29:27,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:27,827 INFO L276 IsEmpty]: Start isEmpty. Operand 35360 states and 49800 transitions. [2024-10-12 20:29:27,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-12 20:29:27,841 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:27,841 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:27,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-12 20:29:27,841 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:27,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:27,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1587126372, now seen corresponding path program 1 times [2024-10-12 20:29:27,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:27,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113504519] [2024-10-12 20:29:27,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:27,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:27,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:27,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:27,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113504519] [2024-10-12 20:29:27,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113504519] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:27,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:27,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:29:27,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136771187] [2024-10-12 20:29:27,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:27,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:29:27,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:27,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:29:27,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:27,949 INFO L87 Difference]: Start difference. First operand 35360 states and 49800 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:28,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:28,081 INFO L93 Difference]: Finished difference Result 51484 states and 72474 transitions. [2024-10-12 20:29:28,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:29:28,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-12 20:29:28,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:28,105 INFO L225 Difference]: With dead ends: 51484 [2024-10-12 20:29:28,105 INFO L226 Difference]: Without dead ends: 18221 [2024-10-12 20:29:28,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:28,127 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 107 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:28,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 417 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:29:28,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18221 states. [2024-10-12 20:29:28,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18221 to 18219. [2024-10-12 20:29:28,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18219 states, 18218 states have (on average 1.396585794269404) internal successors, (25443), 18218 states have internal predecessors, (25443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:28,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18219 states to 18219 states and 25443 transitions. [2024-10-12 20:29:28,684 INFO L78 Accepts]: Start accepts. Automaton has 18219 states and 25443 transitions. Word has length 125 [2024-10-12 20:29:28,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:28,685 INFO L471 AbstractCegarLoop]: Abstraction has 18219 states and 25443 transitions. [2024-10-12 20:29:28,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:28,685 INFO L276 IsEmpty]: Start isEmpty. Operand 18219 states and 25443 transitions. [2024-10-12 20:29:28,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-12 20:29:28,692 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:28,692 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:28,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-12 20:29:28,692 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:28,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:28,693 INFO L85 PathProgramCache]: Analyzing trace with hash -957856959, now seen corresponding path program 1 times [2024-10-12 20:29:28,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:28,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630644857] [2024-10-12 20:29:28,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:28,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:29,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:29,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:29,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630644857] [2024-10-12 20:29:29,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630644857] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:29,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:29,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:29:29,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428621836] [2024-10-12 20:29:29,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:29,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:29:29,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:29,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:29:29,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:29:29,087 INFO L87 Difference]: Start difference. First operand 18219 states and 25443 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:29,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:29,657 INFO L93 Difference]: Finished difference Result 53375 states and 74231 transitions. [2024-10-12 20:29:29,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 20:29:29,657 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-12 20:29:29,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:29,697 INFO L225 Difference]: With dead ends: 53375 [2024-10-12 20:29:29,697 INFO L226 Difference]: Without dead ends: 36407 [2024-10-12 20:29:29,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-12 20:29:29,716 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 1178 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:29,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 693 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 20:29:29,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36407 states. [2024-10-12 20:29:29,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36407 to 19021. [2024-10-12 20:29:29,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19021 states, 19020 states have (on average 1.393322818086225) internal successors, (26501), 19020 states have internal predecessors, (26501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:29,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19021 states to 19021 states and 26501 transitions. [2024-10-12 20:29:29,957 INFO L78 Accepts]: Start accepts. Automaton has 19021 states and 26501 transitions. Word has length 125 [2024-10-12 20:29:29,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:29,957 INFO L471 AbstractCegarLoop]: Abstraction has 19021 states and 26501 transitions. [2024-10-12 20:29:29,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:29,957 INFO L276 IsEmpty]: Start isEmpty. Operand 19021 states and 26501 transitions. [2024-10-12 20:29:29,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-12 20:29:29,964 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:29,965 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:29,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-12 20:29:29,965 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:29,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:29,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1929862486, now seen corresponding path program 1 times [2024-10-12 20:29:29,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:29,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853770334] [2024-10-12 20:29:29,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:29,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:30,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:30,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:30,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853770334] [2024-10-12 20:29:30,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853770334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:30,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:30,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:29:30,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610612452] [2024-10-12 20:29:30,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:30,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:29:30,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:30,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:29:30,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:30,068 INFO L87 Difference]: Start difference. First operand 19021 states and 26501 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:30,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:30,139 INFO L93 Difference]: Finished difference Result 27085 states and 37735 transitions. [2024-10-12 20:29:30,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:29:30,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-12 20:29:30,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:30,147 INFO L225 Difference]: With dead ends: 27085 [2024-10-12 20:29:30,147 INFO L226 Difference]: Without dead ends: 9851 [2024-10-12 20:29:30,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:30,156 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 80 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:30,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 386 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:29:30,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9851 states. [2024-10-12 20:29:30,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9851 to 9849. [2024-10-12 20:29:30,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9849 states, 9848 states have (on average 1.3796709991876523) internal successors, (13587), 9848 states have internal predecessors, (13587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:30,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9849 states to 9849 states and 13587 transitions. [2024-10-12 20:29:30,430 INFO L78 Accepts]: Start accepts. Automaton has 9849 states and 13587 transitions. Word has length 125 [2024-10-12 20:29:30,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:30,431 INFO L471 AbstractCegarLoop]: Abstraction has 9849 states and 13587 transitions. [2024-10-12 20:29:30,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:30,431 INFO L276 IsEmpty]: Start isEmpty. Operand 9849 states and 13587 transitions. [2024-10-12 20:29:30,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-12 20:29:30,436 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:30,436 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:30,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-12 20:29:30,437 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:30,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:30,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1844283175, now seen corresponding path program 1 times [2024-10-12 20:29:30,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:30,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174004806] [2024-10-12 20:29:30,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:30,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:31,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:31,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:31,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174004806] [2024-10-12 20:29:31,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174004806] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:31,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:31,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 20:29:31,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714504091] [2024-10-12 20:29:31,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:31,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-12 20:29:31,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:31,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-12 20:29:31,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-12 20:29:31,065 INFO L87 Difference]: Start difference. First operand 9849 states and 13587 transitions. Second operand has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 12 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:32,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:32,063 INFO L93 Difference]: Finished difference Result 28789 states and 39593 transitions. [2024-10-12 20:29:32,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-12 20:29:32,063 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 12 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-12 20:29:32,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:32,081 INFO L225 Difference]: With dead ends: 28789 [2024-10-12 20:29:32,081 INFO L226 Difference]: Without dead ends: 19723 [2024-10-12 20:29:32,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2024-10-12 20:29:32,091 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 612 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:32,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 1685 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-12 20:29:32,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19723 states. [2024-10-12 20:29:32,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19723 to 10221. [2024-10-12 20:29:32,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10221 states, 10220 states have (on average 1.3728962818003914) internal successors, (14031), 10220 states have internal predecessors, (14031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:32,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10221 states to 10221 states and 14031 transitions. [2024-10-12 20:29:32,272 INFO L78 Accepts]: Start accepts. Automaton has 10221 states and 14031 transitions. Word has length 125 [2024-10-12 20:29:32,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:32,272 INFO L471 AbstractCegarLoop]: Abstraction has 10221 states and 14031 transitions. [2024-10-12 20:29:32,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 12 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:32,272 INFO L276 IsEmpty]: Start isEmpty. Operand 10221 states and 14031 transitions. [2024-10-12 20:29:32,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-12 20:29:32,277 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:32,278 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:32,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-12 20:29:32,278 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:32,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:32,278 INFO L85 PathProgramCache]: Analyzing trace with hash -478762182, now seen corresponding path program 1 times [2024-10-12 20:29:32,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:32,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741993325] [2024-10-12 20:29:32,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:32,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:32,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:32,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:32,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741993325] [2024-10-12 20:29:32,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741993325] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:32,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:32,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:29:32,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744384504] [2024-10-12 20:29:32,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:32,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:29:32,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:32,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:29:32,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:32,352 INFO L87 Difference]: Start difference. First operand 10221 states and 14031 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:32,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:32,485 INFO L93 Difference]: Finished difference Result 18923 states and 26104 transitions. [2024-10-12 20:29:32,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:29:32,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-12 20:29:32,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:32,496 INFO L225 Difference]: With dead ends: 18923 [2024-10-12 20:29:32,497 INFO L226 Difference]: Without dead ends: 9401 [2024-10-12 20:29:32,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:32,505 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 161 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:32,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 209 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:29:32,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9401 states. [2024-10-12 20:29:32,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9401 to 9401. [2024-10-12 20:29:32,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9401 states, 9400 states have (on average 1.3671276595744681) internal successors, (12851), 9400 states have internal predecessors, (12851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:32,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9401 states to 9401 states and 12851 transitions. [2024-10-12 20:29:32,611 INFO L78 Accepts]: Start accepts. Automaton has 9401 states and 12851 transitions. Word has length 126 [2024-10-12 20:29:32,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:32,611 INFO L471 AbstractCegarLoop]: Abstraction has 9401 states and 12851 transitions. [2024-10-12 20:29:32,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:32,612 INFO L276 IsEmpty]: Start isEmpty. Operand 9401 states and 12851 transitions. [2024-10-12 20:29:32,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-12 20:29:32,616 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:32,616 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:32,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-12 20:29:32,617 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:32,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:32,617 INFO L85 PathProgramCache]: Analyzing trace with hash 2065356652, now seen corresponding path program 1 times [2024-10-12 20:29:32,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:32,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775710474] [2024-10-12 20:29:32,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:32,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:33,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:33,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:33,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775710474] [2024-10-12 20:29:33,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775710474] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:33,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:33,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 20:29:33,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331946075] [2024-10-12 20:29:33,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:33,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-12 20:29:33,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:33,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-12 20:29:33,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-12 20:29:33,084 INFO L87 Difference]: Start difference. First operand 9401 states and 12851 transitions. Second operand has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 12 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:33,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:33,926 INFO L93 Difference]: Finished difference Result 27607 states and 37637 transitions. [2024-10-12 20:29:33,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-12 20:29:33,927 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 12 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-12 20:29:33,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:33,950 INFO L225 Difference]: With dead ends: 27607 [2024-10-12 20:29:33,951 INFO L226 Difference]: Without dead ends: 19271 [2024-10-12 20:29:33,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2024-10-12 20:29:33,963 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 745 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:33,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 1139 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 20:29:33,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19271 states. [2024-10-12 20:29:34,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19271 to 9865. [2024-10-12 20:29:34,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9865 states, 9864 states have (on average 1.3622262773722629) internal successors, (13437), 9864 states have internal predecessors, (13437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:34,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9865 states to 9865 states and 13437 transitions. [2024-10-12 20:29:34,134 INFO L78 Accepts]: Start accepts. Automaton has 9865 states and 13437 transitions. Word has length 126 [2024-10-12 20:29:34,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:34,135 INFO L471 AbstractCegarLoop]: Abstraction has 9865 states and 13437 transitions. [2024-10-12 20:29:34,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 12 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:34,135 INFO L276 IsEmpty]: Start isEmpty. Operand 9865 states and 13437 transitions. [2024-10-12 20:29:34,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-12 20:29:34,140 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:34,141 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:34,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-12 20:29:34,141 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:34,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:34,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1340046141, now seen corresponding path program 1 times [2024-10-12 20:29:34,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:34,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83242033] [2024-10-12 20:29:34,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:34,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:34,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:34,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:34,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83242033] [2024-10-12 20:29:34,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83242033] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:34,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:34,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:29:34,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860159284] [2024-10-12 20:29:34,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:34,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:29:34,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:34,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:29:34,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:34,246 INFO L87 Difference]: Start difference. First operand 9865 states and 13437 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:34,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:34,290 INFO L93 Difference]: Finished difference Result 13847 states and 18899 transitions. [2024-10-12 20:29:34,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:29:34,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-12 20:29:34,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:34,296 INFO L225 Difference]: With dead ends: 13847 [2024-10-12 20:29:34,296 INFO L226 Difference]: Without dead ends: 5475 [2024-10-12 20:29:34,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:34,302 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 81 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:34,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 352 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:29:34,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5475 states. [2024-10-12 20:29:34,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5475 to 5473. [2024-10-12 20:29:34,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5473 states, 5472 states have (on average 1.3408260233918128) internal successors, (7337), 5472 states have internal predecessors, (7337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:34,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5473 states to 5473 states and 7337 transitions. [2024-10-12 20:29:34,356 INFO L78 Accepts]: Start accepts. Automaton has 5473 states and 7337 transitions. Word has length 126 [2024-10-12 20:29:34,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:34,356 INFO L471 AbstractCegarLoop]: Abstraction has 5473 states and 7337 transitions. [2024-10-12 20:29:34,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:34,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states and 7337 transitions. [2024-10-12 20:29:34,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-12 20:29:34,360 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:34,360 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:34,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-12 20:29:34,360 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:34,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:34,361 INFO L85 PathProgramCache]: Analyzing trace with hash 42900973, now seen corresponding path program 1 times [2024-10-12 20:29:34,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:34,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808653684] [2024-10-12 20:29:34,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:34,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:34,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:34,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:34,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808653684] [2024-10-12 20:29:34,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808653684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:34,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:34,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:29:34,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032444775] [2024-10-12 20:29:34,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:34,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:29:34,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:34,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:29:34,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:29:34,457 INFO L87 Difference]: Start difference. First operand 5473 states and 7337 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:34,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:34,629 INFO L93 Difference]: Finished difference Result 10130 states and 13562 transitions. [2024-10-12 20:29:34,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:29:34,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-10-12 20:29:34,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:34,636 INFO L225 Difference]: With dead ends: 10130 [2024-10-12 20:29:34,636 INFO L226 Difference]: Without dead ends: 6150 [2024-10-12 20:29:34,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:29:34,640 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 130 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:34,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 439 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:29:34,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2024-10-12 20:29:34,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 5473. [2024-10-12 20:29:34,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5473 states, 5472 states have (on average 1.3408260233918128) internal successors, (7337), 5472 states have internal predecessors, (7337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:34,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5473 states to 5473 states and 7337 transitions. [2024-10-12 20:29:34,692 INFO L78 Accepts]: Start accepts. Automaton has 5473 states and 7337 transitions. Word has length 127 [2024-10-12 20:29:34,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:34,692 INFO L471 AbstractCegarLoop]: Abstraction has 5473 states and 7337 transitions. [2024-10-12 20:29:34,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:34,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states and 7337 transitions. [2024-10-12 20:29:34,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-12 20:29:34,696 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:34,697 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:34,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-12 20:29:34,697 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:34,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:34,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1316768978, now seen corresponding path program 1 times [2024-10-12 20:29:34,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:34,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181698525] [2024-10-12 20:29:34,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:34,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:35,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:35,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:35,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181698525] [2024-10-12 20:29:35,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181698525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:35,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:35,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:29:35,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949038879] [2024-10-12 20:29:35,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:35,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:29:35,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:35,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:29:35,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:29:35,032 INFO L87 Difference]: Start difference. First operand 5473 states and 7337 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:35,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:35,560 INFO L93 Difference]: Finished difference Result 12030 states and 16198 transitions. [2024-10-12 20:29:35,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:29:35,561 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-10-12 20:29:35,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:35,566 INFO L225 Difference]: With dead ends: 12030 [2024-10-12 20:29:35,566 INFO L226 Difference]: Without dead ends: 7083 [2024-10-12 20:29:35,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-10-12 20:29:35,568 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 669 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:35,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 974 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 20:29:35,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7083 states. [2024-10-12 20:29:35,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7083 to 4892. [2024-10-12 20:29:35,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4892 states, 4891 states have (on average 1.3375587814352894) internal successors, (6542), 4891 states have internal predecessors, (6542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:35,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4892 states to 4892 states and 6542 transitions. [2024-10-12 20:29:35,601 INFO L78 Accepts]: Start accepts. Automaton has 4892 states and 6542 transitions. Word has length 127 [2024-10-12 20:29:35,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:35,601 INFO L471 AbstractCegarLoop]: Abstraction has 4892 states and 6542 transitions. [2024-10-12 20:29:35,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:35,601 INFO L276 IsEmpty]: Start isEmpty. Operand 4892 states and 6542 transitions. [2024-10-12 20:29:35,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-12 20:29:35,603 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:35,603 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:35,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-12 20:29:35,603 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:35,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:35,603 INFO L85 PathProgramCache]: Analyzing trace with hash -289288680, now seen corresponding path program 1 times [2024-10-12 20:29:35,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:35,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143776006] [2024-10-12 20:29:35,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:35,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:35,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:35,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:35,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143776006] [2024-10-12 20:29:35,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143776006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:35,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:35,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:29:35,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880620628] [2024-10-12 20:29:35,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:35,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:29:35,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:35,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:29:35,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:29:35,866 INFO L87 Difference]: Start difference. First operand 4892 states and 6542 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:35,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:35,895 INFO L93 Difference]: Finished difference Result 8920 states and 11999 transitions. [2024-10-12 20:29:35,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:29:35,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2024-10-12 20:29:35,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:35,901 INFO L225 Difference]: With dead ends: 8920 [2024-10-12 20:29:35,901 INFO L226 Difference]: Without dead ends: 4879 [2024-10-12 20:29:35,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:29:35,904 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:35,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 653 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:29:35,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4879 states. [2024-10-12 20:29:35,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4879 to 4879. [2024-10-12 20:29:35,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4879 states, 4878 states have (on average 1.3308733087330873) internal successors, (6492), 4878 states have internal predecessors, (6492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:35,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4879 states to 4879 states and 6492 transitions. [2024-10-12 20:29:35,947 INFO L78 Accepts]: Start accepts. Automaton has 4879 states and 6492 transitions. Word has length 128 [2024-10-12 20:29:35,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:35,947 INFO L471 AbstractCegarLoop]: Abstraction has 4879 states and 6492 transitions. [2024-10-12 20:29:35,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:35,948 INFO L276 IsEmpty]: Start isEmpty. Operand 4879 states and 6492 transitions. [2024-10-12 20:29:35,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-12 20:29:35,950 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:35,950 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:35,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-12 20:29:35,950 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:35,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:35,951 INFO L85 PathProgramCache]: Analyzing trace with hash -572502854, now seen corresponding path program 1 times [2024-10-12 20:29:35,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:35,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054571914] [2024-10-12 20:29:35,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:35,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:36,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:36,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:36,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054571914] [2024-10-12 20:29:36,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054571914] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:36,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:36,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:29:36,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542365768] [2024-10-12 20:29:36,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:36,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:29:36,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:36,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:29:36,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:29:36,111 INFO L87 Difference]: Start difference. First operand 4879 states and 6492 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:36,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:36,261 INFO L93 Difference]: Finished difference Result 7723 states and 10360 transitions. [2024-10-12 20:29:36,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:29:36,262 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-10-12 20:29:36,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:36,269 INFO L225 Difference]: With dead ends: 7723 [2024-10-12 20:29:36,269 INFO L226 Difference]: Without dead ends: 7073 [2024-10-12 20:29:36,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:29:36,272 INFO L432 NwaCegarLoop]: 362 mSDtfsCounter, 1256 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:36,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 1067 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:29:36,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7073 states. [2024-10-12 20:29:36,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7073 to 7065. [2024-10-12 20:29:36,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7065 states, 7064 states have (on average 1.3393261608154021) internal successors, (9461), 7064 states have internal predecessors, (9461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:36,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7065 states to 7065 states and 9461 transitions. [2024-10-12 20:29:36,340 INFO L78 Accepts]: Start accepts. Automaton has 7065 states and 9461 transitions. Word has length 130 [2024-10-12 20:29:36,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:36,340 INFO L471 AbstractCegarLoop]: Abstraction has 7065 states and 9461 transitions. [2024-10-12 20:29:36,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:36,340 INFO L276 IsEmpty]: Start isEmpty. Operand 7065 states and 9461 transitions. [2024-10-12 20:29:36,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-12 20:29:36,343 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:36,343 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:36,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-12 20:29:36,343 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:36,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:36,343 INFO L85 PathProgramCache]: Analyzing trace with hash 389373469, now seen corresponding path program 1 times [2024-10-12 20:29:36,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:36,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224294887] [2024-10-12 20:29:36,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:36,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:36,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:36,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:36,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224294887] [2024-10-12 20:29:36,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224294887] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:36,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:36,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:29:36,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224865639] [2024-10-12 20:29:36,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:36,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:29:36,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:36,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:29:36,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:29:36,520 INFO L87 Difference]: Start difference. First operand 7065 states and 9461 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:36,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:36,675 INFO L93 Difference]: Finished difference Result 13401 states and 18074 transitions. [2024-10-12 20:29:36,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:29:36,675 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-10-12 20:29:36,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:36,686 INFO L225 Difference]: With dead ends: 13401 [2024-10-12 20:29:36,687 INFO L226 Difference]: Without dead ends: 10653 [2024-10-12 20:29:36,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:29:36,691 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 1117 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:36,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 1154 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:29:36,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10653 states. [2024-10-12 20:29:36,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10653 to 9549. [2024-10-12 20:29:36,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9549 states, 9548 states have (on average 1.347193129451194) internal successors, (12863), 9548 states have internal predecessors, (12863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:36,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9549 states to 9549 states and 12863 transitions. [2024-10-12 20:29:36,765 INFO L78 Accepts]: Start accepts. Automaton has 9549 states and 12863 transitions. Word has length 130 [2024-10-12 20:29:36,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:36,765 INFO L471 AbstractCegarLoop]: Abstraction has 9549 states and 12863 transitions. [2024-10-12 20:29:36,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:36,766 INFO L276 IsEmpty]: Start isEmpty. Operand 9549 states and 12863 transitions. [2024-10-12 20:29:36,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-12 20:29:36,768 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:36,768 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:36,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-12 20:29:36,768 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:36,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:36,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1853265216, now seen corresponding path program 1 times [2024-10-12 20:29:36,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:36,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426341447] [2024-10-12 20:29:36,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:36,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:36,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:36,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:36,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426341447] [2024-10-12 20:29:36,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426341447] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:36,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:36,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:29:36,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193770347] [2024-10-12 20:29:36,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:36,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:29:36,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:36,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:29:36,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:29:36,937 INFO L87 Difference]: Start difference. First operand 9549 states and 12863 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:37,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:37,090 INFO L93 Difference]: Finished difference Result 19609 states and 26579 transitions. [2024-10-12 20:29:37,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:29:37,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-10-12 20:29:37,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:37,105 INFO L225 Difference]: With dead ends: 19609 [2024-10-12 20:29:37,106 INFO L226 Difference]: Without dead ends: 14413 [2024-10-12 20:29:37,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:29:37,112 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 1106 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:37,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1106 Valid, 1120 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:29:37,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14413 states. [2024-10-12 20:29:37,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14413 to 11473. [2024-10-12 20:29:37,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11473 states, 11472 states have (on average 1.3498953974895398) internal successors, (15486), 11472 states have internal predecessors, (15486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:37,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11473 states to 11473 states and 15486 transitions. [2024-10-12 20:29:37,257 INFO L78 Accepts]: Start accepts. Automaton has 11473 states and 15486 transitions. Word has length 130 [2024-10-12 20:29:37,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:37,257 INFO L471 AbstractCegarLoop]: Abstraction has 11473 states and 15486 transitions. [2024-10-12 20:29:37,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:37,257 INFO L276 IsEmpty]: Start isEmpty. Operand 11473 states and 15486 transitions. [2024-10-12 20:29:37,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-12 20:29:37,259 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:37,259 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:37,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-12 20:29:37,260 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:37,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:37,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1609973863, now seen corresponding path program 1 times [2024-10-12 20:29:37,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:37,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913549096] [2024-10-12 20:29:37,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:37,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:37,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:37,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:37,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913549096] [2024-10-12 20:29:37,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913549096] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:37,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:37,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:29:37,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133596393] [2024-10-12 20:29:37,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:37,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:29:37,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:37,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:29:37,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:37,314 INFO L87 Difference]: Start difference. First operand 11473 states and 15486 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:37,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:37,391 INFO L93 Difference]: Finished difference Result 27251 states and 36228 transitions. [2024-10-12 20:29:37,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:29:37,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-10-12 20:29:37,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:37,408 INFO L225 Difference]: With dead ends: 27251 [2024-10-12 20:29:37,408 INFO L226 Difference]: Without dead ends: 16825 [2024-10-12 20:29:37,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:29:37,417 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 50 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:37,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 457 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:29:37,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16825 states. [2024-10-12 20:29:37,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16825 to 16163. [2024-10-12 20:29:37,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16163 states, 16162 states have (on average 1.2865363197624056) internal successors, (20793), 16162 states have internal predecessors, (20793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:37,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16163 states to 16163 states and 20793 transitions. [2024-10-12 20:29:37,560 INFO L78 Accepts]: Start accepts. Automaton has 16163 states and 20793 transitions. Word has length 130 [2024-10-12 20:29:37,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:37,560 INFO L471 AbstractCegarLoop]: Abstraction has 16163 states and 20793 transitions. [2024-10-12 20:29:37,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:37,561 INFO L276 IsEmpty]: Start isEmpty. Operand 16163 states and 20793 transitions. [2024-10-12 20:29:37,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-12 20:29:37,563 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:37,563 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:37,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-12 20:29:37,563 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:37,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:37,564 INFO L85 PathProgramCache]: Analyzing trace with hash 840284900, now seen corresponding path program 1 times [2024-10-12 20:29:37,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:37,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160405096] [2024-10-12 20:29:37,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:37,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:37,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:37,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:37,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160405096] [2024-10-12 20:29:37,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160405096] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:37,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:37,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:29:37,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658047325] [2024-10-12 20:29:37,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:37,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:29:37,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:37,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:29:37,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:29:37,740 INFO L87 Difference]: Start difference. First operand 16163 states and 20793 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:37,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:37,907 INFO L93 Difference]: Finished difference Result 37885 states and 49060 transitions. [2024-10-12 20:29:37,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:29:37,908 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-12 20:29:37,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:37,938 INFO L225 Difference]: With dead ends: 37885 [2024-10-12 20:29:37,938 INFO L226 Difference]: Without dead ends: 27693 [2024-10-12 20:29:37,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:29:37,950 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 1037 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:37,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1134 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:29:37,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27693 states. [2024-10-12 20:29:38,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27693 to 27677. [2024-10-12 20:29:38,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27677 states, 27676 states have (on average 1.292419424772366) internal successors, (35769), 27676 states have internal predecessors, (35769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:38,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27677 states to 27677 states and 35769 transitions. [2024-10-12 20:29:38,188 INFO L78 Accepts]: Start accepts. Automaton has 27677 states and 35769 transitions. Word has length 131 [2024-10-12 20:29:38,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:38,188 INFO L471 AbstractCegarLoop]: Abstraction has 27677 states and 35769 transitions. [2024-10-12 20:29:38,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:38,188 INFO L276 IsEmpty]: Start isEmpty. Operand 27677 states and 35769 transitions. [2024-10-12 20:29:38,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-12 20:29:38,190 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:38,191 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:38,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-12 20:29:38,191 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:38,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:38,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1402353785, now seen corresponding path program 1 times [2024-10-12 20:29:38,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:38,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167687203] [2024-10-12 20:29:38,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:38,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:38,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:38,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:38,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167687203] [2024-10-12 20:29:38,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167687203] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:38,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:38,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:29:38,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831965332] [2024-10-12 20:29:38,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:38,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:29:38,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:38,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:29:38,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:29:38,437 INFO L87 Difference]: Start difference. First operand 27677 states and 35769 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:38,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:38,715 INFO L93 Difference]: Finished difference Result 73297 states and 95144 transitions. [2024-10-12 20:29:38,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:29:38,715 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-12 20:29:38,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:38,783 INFO L225 Difference]: With dead ends: 73297 [2024-10-12 20:29:38,783 INFO L226 Difference]: Without dead ends: 51605 [2024-10-12 20:29:38,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:29:38,810 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 1088 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:38,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 1153 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:29:38,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51605 states. [2024-10-12 20:29:39,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51605 to 51049. [2024-10-12 20:29:39,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51049 states, 51048 states have (on average 1.2961330512458862) internal successors, (66165), 51048 states have internal predecessors, (66165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:39,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51049 states to 51049 states and 66165 transitions. [2024-10-12 20:29:39,307 INFO L78 Accepts]: Start accepts. Automaton has 51049 states and 66165 transitions. Word has length 131 [2024-10-12 20:29:39,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:39,307 INFO L471 AbstractCegarLoop]: Abstraction has 51049 states and 66165 transitions. [2024-10-12 20:29:39,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:39,307 INFO L276 IsEmpty]: Start isEmpty. Operand 51049 states and 66165 transitions. [2024-10-12 20:29:39,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-12 20:29:39,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:39,310 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:39,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-12 20:29:39,310 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:39,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:39,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1648958844, now seen corresponding path program 1 times [2024-10-12 20:29:39,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:39,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63206392] [2024-10-12 20:29:39,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:39,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:39,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:39,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:39,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63206392] [2024-10-12 20:29:39,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63206392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:39,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:39,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:29:39,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673930738] [2024-10-12 20:29:39,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:39,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:29:39,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:39,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:29:39,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:29:39,479 INFO L87 Difference]: Start difference. First operand 51049 states and 66165 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:39,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:39,931 INFO L93 Difference]: Finished difference Result 105175 states and 136666 transitions. [2024-10-12 20:29:39,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:29:39,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-12 20:29:39,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:39,984 INFO L225 Difference]: With dead ends: 105175 [2024-10-12 20:29:39,984 INFO L226 Difference]: Without dead ends: 60171 [2024-10-12 20:29:40,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:29:40,003 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 995 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:40,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1203 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:29:40,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60171 states. [2024-10-12 20:29:40,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60171 to 56053. [2024-10-12 20:29:40,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56053 states, 56052 states have (on average 1.2965995860986228) internal successors, (72677), 56052 states have internal predecessors, (72677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:40,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56053 states to 56053 states and 72677 transitions. [2024-10-12 20:29:40,533 INFO L78 Accepts]: Start accepts. Automaton has 56053 states and 72677 transitions. Word has length 131 [2024-10-12 20:29:40,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:40,534 INFO L471 AbstractCegarLoop]: Abstraction has 56053 states and 72677 transitions. [2024-10-12 20:29:40,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:40,534 INFO L276 IsEmpty]: Start isEmpty. Operand 56053 states and 72677 transitions. [2024-10-12 20:29:40,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-12 20:29:40,536 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:40,536 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:40,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-12 20:29:40,537 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:40,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:40,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1215200871, now seen corresponding path program 1 times [2024-10-12 20:29:40,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:40,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493226969] [2024-10-12 20:29:40,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:40,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:40,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:40,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:40,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493226969] [2024-10-12 20:29:40,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493226969] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:40,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:40,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:29:40,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977631956] [2024-10-12 20:29:40,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:40,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:29:40,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:40,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:29:40,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:29:40,698 INFO L87 Difference]: Start difference. First operand 56053 states and 72677 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:41,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:41,443 INFO L93 Difference]: Finished difference Result 112267 states and 145810 transitions. [2024-10-12 20:29:41,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:29:41,444 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-12 20:29:41,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:41,507 INFO L225 Difference]: With dead ends: 112267 [2024-10-12 20:29:41,507 INFO L226 Difference]: Without dead ends: 62229 [2024-10-12 20:29:41,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:29:41,537 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 1038 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:41,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 999 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:29:41,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62229 states. [2024-10-12 20:29:41,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62229 to 62217. [2024-10-12 20:29:42,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62217 states, 62216 states have (on average 1.2970939951137972) internal successors, (80700), 62216 states have internal predecessors, (80700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:42,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62217 states to 62217 states and 80700 transitions. [2024-10-12 20:29:42,102 INFO L78 Accepts]: Start accepts. Automaton has 62217 states and 80700 transitions. Word has length 131 [2024-10-12 20:29:42,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:42,102 INFO L471 AbstractCegarLoop]: Abstraction has 62217 states and 80700 transitions. [2024-10-12 20:29:42,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:42,102 INFO L276 IsEmpty]: Start isEmpty. Operand 62217 states and 80700 transitions. [2024-10-12 20:29:42,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-12 20:29:42,104 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:42,104 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:42,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-12 20:29:42,105 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:42,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:42,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1027437814, now seen corresponding path program 1 times [2024-10-12 20:29:42,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:42,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963090842] [2024-10-12 20:29:42,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:42,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:42,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:42,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:42,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963090842] [2024-10-12 20:29:42,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963090842] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:42,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:42,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:29:42,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083052824] [2024-10-12 20:29:42,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:42,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:29:42,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:42,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:29:42,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:29:42,643 INFO L87 Difference]: Start difference. First operand 62217 states and 80700 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:42,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:42,955 INFO L93 Difference]: Finished difference Result 131997 states and 171501 transitions. [2024-10-12 20:29:42,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:29:42,956 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-12 20:29:42,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:43,034 INFO L225 Difference]: With dead ends: 131997 [2024-10-12 20:29:43,034 INFO L226 Difference]: Without dead ends: 75761 [2024-10-12 20:29:43,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:29:43,078 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 1129 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:43,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 1123 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:29:43,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75761 states. [2024-10-12 20:29:44,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75761 to 75479. [2024-10-12 20:29:44,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75479 states, 75478 states have (on average 1.2978218818728635) internal successors, (97957), 75478 states have internal predecessors, (97957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:44,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75479 states to 75479 states and 97957 transitions. [2024-10-12 20:29:44,274 INFO L78 Accepts]: Start accepts. Automaton has 75479 states and 97957 transitions. Word has length 131 [2024-10-12 20:29:44,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:44,274 INFO L471 AbstractCegarLoop]: Abstraction has 75479 states and 97957 transitions. [2024-10-12 20:29:44,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:44,275 INFO L276 IsEmpty]: Start isEmpty. Operand 75479 states and 97957 transitions. [2024-10-12 20:29:44,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-12 20:29:44,278 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:44,278 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:44,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-12 20:29:44,278 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:44,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:44,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1274042873, now seen corresponding path program 1 times [2024-10-12 20:29:44,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:44,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374534601] [2024-10-12 20:29:44,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:44,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:44,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:44,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:44,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374534601] [2024-10-12 20:29:44,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374534601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:44,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:44,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:29:44,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313288266] [2024-10-12 20:29:44,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:44,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:29:44,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:44,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:29:44,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:29:44,491 INFO L87 Difference]: Start difference. First operand 75479 states and 97957 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:44,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:44,905 INFO L93 Difference]: Finished difference Result 150065 states and 195054 transitions. [2024-10-12 20:29:44,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:29:44,906 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-12 20:29:44,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:44,988 INFO L225 Difference]: With dead ends: 150065 [2024-10-12 20:29:44,989 INFO L226 Difference]: Without dead ends: 80555 [2024-10-12 20:29:45,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:29:45,040 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 993 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:45,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 1355 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:29:45,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80555 states. [2024-10-12 20:29:46,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80555 to 77259. [2024-10-12 20:29:46,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77259 states, 77258 states have (on average 1.2978720650288644) internal successors, (100271), 77258 states have internal predecessors, (100271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:46,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77259 states to 77259 states and 100271 transitions. [2024-10-12 20:29:46,227 INFO L78 Accepts]: Start accepts. Automaton has 77259 states and 100271 transitions. Word has length 131 [2024-10-12 20:29:46,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:46,227 INFO L471 AbstractCegarLoop]: Abstraction has 77259 states and 100271 transitions. [2024-10-12 20:29:46,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:46,228 INFO L276 IsEmpty]: Start isEmpty. Operand 77259 states and 100271 transitions. [2024-10-12 20:29:46,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-12 20:29:46,230 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:46,230 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:46,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-12 20:29:46,230 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:46,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:46,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1219821226, now seen corresponding path program 1 times [2024-10-12 20:29:46,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:46,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461066079] [2024-10-12 20:29:46,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:46,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:46,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:46,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:46,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461066079] [2024-10-12 20:29:46,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461066079] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:46,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:46,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 20:29:46,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120371170] [2024-10-12 20:29:46,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:46,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:29:46,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:46,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:29:46,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:29:46,402 INFO L87 Difference]: Start difference. First operand 77259 states and 100271 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:46,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:46,786 INFO L93 Difference]: Finished difference Result 155577 states and 202168 transitions. [2024-10-12 20:29:46,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 20:29:46,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-12 20:29:46,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:46,874 INFO L225 Difference]: With dead ends: 155577 [2024-10-12 20:29:46,874 INFO L226 Difference]: Without dead ends: 84257 [2024-10-12 20:29:46,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-12 20:29:46,920 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 1006 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:46,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 1269 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:29:46,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84257 states. [2024-10-12 20:29:48,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84257 to 84245. [2024-10-12 20:29:48,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84245 states, 84244 states have (on average 1.298300175680167) internal successors, (109374), 84244 states have internal predecessors, (109374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:48,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84245 states to 84245 states and 109374 transitions. [2024-10-12 20:29:48,372 INFO L78 Accepts]: Start accepts. Automaton has 84245 states and 109374 transitions. Word has length 131 [2024-10-12 20:29:48,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:29:48,372 INFO L471 AbstractCegarLoop]: Abstraction has 84245 states and 109374 transitions. [2024-10-12 20:29:48,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:48,373 INFO L276 IsEmpty]: Start isEmpty. Operand 84245 states and 109374 transitions. [2024-10-12 20:29:48,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-12 20:29:48,375 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:29:48,375 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:29:48,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-10-12 20:29:48,375 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:29:48,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:29:48,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1178890498, now seen corresponding path program 1 times [2024-10-12 20:29:48,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:29:48,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143906660] [2024-10-12 20:29:48,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:29:48,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:29:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:29:49,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:29:49,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:29:49,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143906660] [2024-10-12 20:29:49,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143906660] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:29:49,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:29:49,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 20:29:49,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115269029] [2024-10-12 20:29:49,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:29:49,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:29:49,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:29:49,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:29:49,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:29:49,069 INFO L87 Difference]: Start difference. First operand 84245 states and 109374 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:29:49,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:29:49,265 INFO L93 Difference]: Finished difference Result 86223 states and 112339 transitions. [2024-10-12 20:29:49,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 20:29:49,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2024-10-12 20:29:49,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:29:49,355 INFO L225 Difference]: With dead ends: 86223 [2024-10-12 20:29:49,355 INFO L226 Difference]: Without dead ends: 86221 [2024-10-12 20:29:49,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:29:49,381 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:29:49,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1057 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:29:49,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86221 states.