./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../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 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 21:41:52,667 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 21:41:52,749 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 21:41:52,754 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 21:41:52,755 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 21:41:52,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 21:41:52,783 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 21:41:52,784 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 21:41:52,784 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 21:41:52,785 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 21:41:52,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 21:41:52,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 21:41:52,786 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 21:41:52,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 21:41:52,787 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 21:41:52,789 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 21:41:52,790 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 21:41:52,792 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 21:41:52,792 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 21:41:52,793 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 21:41:52,793 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 21:41:52,794 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 21:41:52,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 21:41:52,795 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 21:41:52,795 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 21:41:52,796 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 21:41:52,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 21:41:52,796 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 21:41:52,797 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 21:41:52,797 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 21:41:52,797 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 21:41:52,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 21:41:52,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:41:52,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 21:41:52,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 21:41:52,813 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 21:41:52,813 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 21:41:52,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 21:41:52,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 21:41:52,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 21:41:52,814 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 21:41:52,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 21:41:52,814 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d5cb8d9caea7ccafc5dde86756b709e1bbbadc4ec66724ae09094031008d598 [2024-11-11 21:41:53,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 21:41:53,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 21:41:53,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 21:41:53,141 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 21:41:53,142 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 21:41:53,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-11-11 21:41:54,689 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 21:41:54,934 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 21:41:54,935 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 [2024-11-11 21:41:54,950 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e72aef9b/2d852943330443c28ce627d58d72f4af/FLAG0bf457266 [2024-11-11 21:41:54,966 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e72aef9b/2d852943330443c28ce627d58d72f4af [2024-11-11 21:41:54,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 21:41:54,971 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 21:41:54,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 21:41:54,975 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 21:41:54,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 21:41:54,982 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:41:54" (1/1) ... [2024-11-11 21:41:54,983 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b176a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:41:54, skipping insertion in model container [2024-11-11 21:41:54,983 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:41:54" (1/1) ... [2024-11-11 21:41:55,032 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 21:41:55,325 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c[10276,10289] [2024-11-11 21:41:55,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:41:55,409 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 21:41:55,462 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c[10276,10289] [2024-11-11 21:41:55,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:41:55,512 INFO L204 MainTranslator]: Completed translation [2024-11-11 21:41:55,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:41:55 WrapperNode [2024-11-11 21:41:55,513 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 21:41:55,514 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 21:41:55,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 21:41:55,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 21:41:55,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:41:55" (1/1) ... [2024-11-11 21:41:55,532 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:41:55" (1/1) ... [2024-11-11 21:41:55,570 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 892 [2024-11-11 21:41:55,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 21:41:55,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 21:41:55,571 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 21:41:55,572 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 21:41:55,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:41:55" (1/1) ... [2024-11-11 21:41:55,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:41:55" (1/1) ... [2024-11-11 21:41:55,595 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:41:55" (1/1) ... [2024-11-11 21:41:55,626 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]. [2024-11-11 21:41:55,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:41:55" (1/1) ... [2024-11-11 21:41:55,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:41:55" (1/1) ... [2024-11-11 21:41:55,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:41:55" (1/1) ... [2024-11-11 21:41:55,649 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:41:55" (1/1) ... [2024-11-11 21:41:55,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:41:55" (1/1) ... [2024-11-11 21:41:55,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:41:55" (1/1) ... [2024-11-11 21:41:55,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 21:41:55,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 21:41:55,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 21:41:55,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 21:41:55,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:41:55" (1/1) ... [2024-11-11 21:41:55,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:41:55,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:41:55,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 21:41:55,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 21:41:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 21:41:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 21:41:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 21:41:55,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 21:41:55,924 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 21:41:55,926 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 21:41:56,695 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-11-11 21:41:56,695 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 21:41:56,721 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 21:41:56,721 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-11 21:41:56,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:41:56 BoogieIcfgContainer [2024-11-11 21:41:56,722 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 21:41:56,723 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 21:41:56,723 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 21:41:56,728 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 21:41:56,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:41:54" (1/3) ... [2024-11-11 21:41:56,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f4b95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:41:56, skipping insertion in model container [2024-11-11 21:41:56,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:41:55" (2/3) ... [2024-11-11 21:41:56,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f4b95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:41:56, skipping insertion in model container [2024-11-11 21:41:56,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:41:56" (3/3) ... [2024-11-11 21:41:56,732 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-11-11 21:41:56,750 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 21:41:56,750 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 21:41:56,819 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 21:41:56,826 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;@6cbfde33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 21:41:56,827 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 21:41:56,833 INFO L276 IsEmpty]: Start isEmpty. Operand has 215 states, 213 states have (on average 1.676056338028169) internal successors, (357), 214 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:56,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-11 21:41:56,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:41:56,849 INFO L218 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] [2024-11-11 21:41:56,849 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:41:56,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:41:56,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1369000833, now seen corresponding path program 1 times [2024-11-11 21:41:56,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:41:56,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847823205] [2024-11-11 21:41:56,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:41:56,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:41:57,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:41:57,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:41:57,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:41:57,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847823205] [2024-11-11 21:41:57,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847823205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:41:57,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:41:57,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:41:57,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496849447] [2024-11-11 21:41:57,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:41:57,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:41:57,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:41:57,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:41:57,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:41:57,468 INFO L87 Difference]: Start difference. First operand has 215 states, 213 states have (on average 1.676056338028169) internal successors, (357), 214 states have internal predecessors, (357), 0 states have call successors, (0), 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 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:57,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:41:57,593 INFO L93 Difference]: Finished difference Result 398 states and 651 transitions. [2024-11-11 21:41:57,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:41:57,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-11 21:41:57,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:41:57,611 INFO L225 Difference]: With dead ends: 398 [2024-11-11 21:41:57,611 INFO L226 Difference]: Without dead ends: 212 [2024-11-11 21:41:57,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:41:57,620 INFO L435 NwaCegarLoop]: 352 mSDtfsCounter, 93 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:41:57,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 919 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:41:57,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-11 21:41:57,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2024-11-11 21:41:57,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 211 states have (on average 1.5023696682464456) internal successors, (317), 211 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:57,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 317 transitions. [2024-11-11 21:41:57,683 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 317 transitions. Word has length 79 [2024-11-11 21:41:57,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:41:57,683 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 317 transitions. [2024-11-11 21:41:57,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:57,684 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 317 transitions. [2024-11-11 21:41:57,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-11 21:41:57,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:41:57,689 INFO L218 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] [2024-11-11 21:41:57,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 21:41:57,690 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:41:57,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:41:57,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1406572509, now seen corresponding path program 1 times [2024-11-11 21:41:57,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:41:57,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552278935] [2024-11-11 21:41:57,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:41:57,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:41:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:41:57,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:41:57,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:41:57,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552278935] [2024-11-11 21:41:57,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552278935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:41:57,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:41:57,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:41:57,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243239809] [2024-11-11 21:41:57,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:41:57,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:41:57,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:41:57,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:41:57,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:41:57,924 INFO L87 Difference]: Start difference. First operand 212 states and 317 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:57,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:41:57,981 INFO L93 Difference]: Finished difference Result 480 states and 743 transitions. [2024-11-11 21:41:57,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:41:57,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-11 21:41:57,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:41:57,987 INFO L225 Difference]: With dead ends: 480 [2024-11-11 21:41:57,990 INFO L226 Difference]: Without dead ends: 309 [2024-11-11 21:41:57,991 INFO L434 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 [2024-11-11 21:41:57,992 INFO L435 NwaCegarLoop]: 307 mSDtfsCounter, 175 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:41:57,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 559 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:41:57,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-11 21:41:58,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 307. [2024-11-11 21:41:58,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 306 states have (on average 1.526143790849673) internal successors, (467), 306 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:58,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 467 transitions. [2024-11-11 21:41:58,025 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 467 transitions. Word has length 109 [2024-11-11 21:41:58,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:41:58,026 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 467 transitions. [2024-11-11 21:41:58,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:58,027 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 467 transitions. [2024-11-11 21:41:58,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-11 21:41:58,033 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:41:58,033 INFO L218 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] [2024-11-11 21:41:58,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 21:41:58,034 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:41:58,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:41:58,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1105344852, now seen corresponding path program 1 times [2024-11-11 21:41:58,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:41:58,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366182191] [2024-11-11 21:41:58,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:41:58,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:41:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:41:58,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:41:58,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:41:58,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366182191] [2024-11-11 21:41:58,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366182191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:41:58,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:41:58,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:41:58,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850966336] [2024-11-11 21:41:58,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:41:58,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:41:58,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:41:58,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:41:58,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:41:58,220 INFO L87 Difference]: Start difference. First operand 307 states and 467 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:58,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:41:58,251 INFO L93 Difference]: Finished difference Result 735 states and 1148 transitions. [2024-11-11 21:41:58,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:41:58,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-11-11 21:41:58,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:41:58,259 INFO L225 Difference]: With dead ends: 735 [2024-11-11 21:41:58,259 INFO L226 Difference]: Without dead ends: 475 [2024-11-11 21:41:58,260 INFO L434 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 [2024-11-11 21:41:58,261 INFO L435 NwaCegarLoop]: 362 mSDtfsCounter, 162 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:41:58,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 602 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:41:58,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2024-11-11 21:41:58,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 473. [2024-11-11 21:41:58,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 472 states have (on average 1.5444915254237288) internal successors, (729), 472 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:58,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 729 transitions. [2024-11-11 21:41:58,295 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 729 transitions. Word has length 111 [2024-11-11 21:41:58,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:41:58,295 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 729 transitions. [2024-11-11 21:41:58,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:58,296 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 729 transitions. [2024-11-11 21:41:58,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 21:41:58,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:41:58,303 INFO L218 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] [2024-11-11 21:41:58,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 21:41:58,304 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:41:58,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:41:58,304 INFO L85 PathProgramCache]: Analyzing trace with hash 287285005, now seen corresponding path program 1 times [2024-11-11 21:41:58,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:41:58,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461505124] [2024-11-11 21:41:58,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:41:58,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:41:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:41:58,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:41:58,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:41:58,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461505124] [2024-11-11 21:41:58,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461505124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:41:58,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:41:58,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:41:58,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944719493] [2024-11-11 21:41:58,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:41:58,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:41:58,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:41:58,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:41:58,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:41:58,398 INFO L87 Difference]: Start difference. First operand 473 states and 729 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:58,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:41:58,427 INFO L93 Difference]: Finished difference Result 1175 states and 1844 transitions. [2024-11-11 21:41:58,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:41:58,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2024-11-11 21:41:58,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:41:58,431 INFO L225 Difference]: With dead ends: 1175 [2024-11-11 21:41:58,432 INFO L226 Difference]: Without dead ends: 755 [2024-11-11 21:41:58,433 INFO L434 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 [2024-11-11 21:41:58,434 INFO L435 NwaCegarLoop]: 291 mSDtfsCounter, 149 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:41:58,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 519 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:41:58,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-11-11 21:41:58,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 753. [2024-11-11 21:41:58,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 752 states have (on average 1.5545212765957446) internal successors, (1169), 752 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:58,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1169 transitions. [2024-11-11 21:41:58,461 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1169 transitions. Word has length 113 [2024-11-11 21:41:58,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:41:58,463 INFO L471 AbstractCegarLoop]: Abstraction has 753 states and 1169 transitions. [2024-11-11 21:41:58,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:58,463 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1169 transitions. [2024-11-11 21:41:58,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-11 21:41:58,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:41:58,466 INFO L218 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] [2024-11-11 21:41:58,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 21:41:58,466 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:41:58,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:41:58,467 INFO L85 PathProgramCache]: Analyzing trace with hash 155565224, now seen corresponding path program 1 times [2024-11-11 21:41:58,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:41:58,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987235898] [2024-11-11 21:41:58,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:41:58,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:41:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:41:58,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:41:58,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:41:58,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987235898] [2024-11-11 21:41:58,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987235898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:41:58,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:41:58,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:41:58,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64986315] [2024-11-11 21:41:58,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:41:58,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:41:58,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:41:58,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:41:58,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:41:58,569 INFO L87 Difference]: Start difference. First operand 753 states and 1169 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:58,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:41:58,598 INFO L93 Difference]: Finished difference Result 1901 states and 2984 transitions. [2024-11-11 21:41:58,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:41:58,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2024-11-11 21:41:58,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:41:58,603 INFO L225 Difference]: With dead ends: 1901 [2024-11-11 21:41:58,603 INFO L226 Difference]: Without dead ends: 1207 [2024-11-11 21:41:58,604 INFO L434 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 [2024-11-11 21:41:58,605 INFO L435 NwaCegarLoop]: 314 mSDtfsCounter, 136 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:41:58,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 530 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:41:58,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-11-11 21:41:58,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1205. [2024-11-11 21:41:58,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 1204 states have (on average 1.5556478405315615) internal successors, (1873), 1204 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:58,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1873 transitions. [2024-11-11 21:41:58,625 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1873 transitions. Word has length 115 [2024-11-11 21:41:58,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:41:58,625 INFO L471 AbstractCegarLoop]: Abstraction has 1205 states and 1873 transitions. [2024-11-11 21:41:58,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:58,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1873 transitions. [2024-11-11 21:41:58,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-11 21:41:58,628 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:41:58,628 INFO L218 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] [2024-11-11 21:41:58,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 21:41:58,630 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:41:58,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:41:58,630 INFO L85 PathProgramCache]: Analyzing trace with hash -2047962190, now seen corresponding path program 1 times [2024-11-11 21:41:58,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:41:58,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016631612] [2024-11-11 21:41:58,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:41:58,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:41:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:41:58,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:41:58,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:41:58,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016631612] [2024-11-11 21:41:58,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016631612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:41:58,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:41:58,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:41:58,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353627252] [2024-11-11 21:41:58,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:41:58,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:41:58,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:41:58,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:41:58,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:41:58,733 INFO L87 Difference]: Start difference. First operand 1205 states and 1873 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:58,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:41:58,775 INFO L93 Difference]: Finished difference Result 3031 states and 4736 transitions. [2024-11-11 21:41:58,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:41:58,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2024-11-11 21:41:58,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:41:58,784 INFO L225 Difference]: With dead ends: 3031 [2024-11-11 21:41:58,784 INFO L226 Difference]: Without dead ends: 1891 [2024-11-11 21:41:58,786 INFO L434 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 [2024-11-11 21:41:58,788 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 123 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:41:58,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 479 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:41:58,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1891 states. [2024-11-11 21:41:58,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1891 to 1889. [2024-11-11 21:41:58,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1888 states have (on average 1.5471398305084745) internal successors, (2921), 1888 states have internal predecessors, (2921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:58,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2921 transitions. [2024-11-11 21:41:58,827 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2921 transitions. Word has length 117 [2024-11-11 21:41:58,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:41:58,828 INFO L471 AbstractCegarLoop]: Abstraction has 1889 states and 2921 transitions. [2024-11-11 21:41:58,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:58,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2921 transitions. [2024-11-11 21:41:58,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-11 21:41:58,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:41:58,833 INFO L218 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] [2024-11-11 21:41:58,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 21:41:58,834 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:41:58,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:41:58,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1115406563, now seen corresponding path program 1 times [2024-11-11 21:41:58,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:41:58,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208218933] [2024-11-11 21:41:58,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:41:58,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:41:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:41:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:41:59,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:41:59,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208218933] [2024-11-11 21:41:59,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208218933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:41:59,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:41:59,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:41:59,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664519241] [2024-11-11 21:41:59,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:41:59,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:41:59,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:41:59,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:41:59,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:41:59,081 INFO L87 Difference]: Start difference. First operand 1889 states and 2921 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:59,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:41:59,460 INFO L93 Difference]: Finished difference Result 16374 states and 25284 transitions. [2024-11-11 21:41:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 21:41:59,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-11-11 21:41:59,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:41:59,511 INFO L225 Difference]: With dead ends: 16374 [2024-11-11 21:41:59,511 INFO L226 Difference]: Without dead ends: 14556 [2024-11-11 21:41:59,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-11 21:41:59,520 INFO L435 NwaCegarLoop]: 351 mSDtfsCounter, 2403 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 1884 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:41:59,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2403 Valid, 1884 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:41:59,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14556 states. [2024-11-11 21:41:59,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14556 to 3650. [2024-11-11 21:41:59,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3650 states, 3649 states have (on average 1.5168539325842696) internal successors, (5535), 3649 states have internal predecessors, (5535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:59,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 5535 transitions. [2024-11-11 21:41:59,690 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 5535 transitions. Word has length 119 [2024-11-11 21:41:59,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:41:59,690 INFO L471 AbstractCegarLoop]: Abstraction has 3650 states and 5535 transitions. [2024-11-11 21:41:59,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:41:59,691 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 5535 transitions. [2024-11-11 21:41:59,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-11 21:41:59,697 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:41:59,698 INFO L218 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] [2024-11-11 21:41:59,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 21:41:59,698 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:41:59,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:41:59,699 INFO L85 PathProgramCache]: Analyzing trace with hash 551400311, now seen corresponding path program 1 times [2024-11-11 21:41:59,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:41:59,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009978399] [2024-11-11 21:41:59,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:41:59,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:41:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:41:59,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:41:59,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:41:59,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009978399] [2024-11-11 21:41:59,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009978399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:41:59,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:41:59,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:41:59,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463555595] [2024-11-11 21:41:59,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:41:59,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:41:59,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:41:59,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:41:59,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:41:59,839 INFO L87 Difference]: Start difference. First operand 3650 states and 5535 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 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) [2024-11-11 21:41:59,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:41:59,897 INFO L93 Difference]: Finished difference Result 8386 states and 12721 transitions. [2024-11-11 21:41:59,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:41:59,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 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 [2024-11-11 21:41:59,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:41:59,913 INFO L225 Difference]: With dead ends: 8386 [2024-11-11 21:41:59,913 INFO L226 Difference]: Without dead ends: 4805 [2024-11-11 21:41:59,918 INFO L434 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 [2024-11-11 21:41:59,919 INFO L435 NwaCegarLoop]: 421 mSDtfsCounter, 186 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:41:59,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 592 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:41:59,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4805 states. [2024-11-11 21:41:59,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4805 to 4803. [2024-11-11 21:41:59,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4803 states, 4802 states have (on average 1.4929196168263223) internal successors, (7169), 4802 states have internal predecessors, (7169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:00,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4803 states to 4803 states and 7169 transitions. [2024-11-11 21:42:00,009 INFO L78 Accepts]: Start accepts. Automaton has 4803 states and 7169 transitions. Word has length 123 [2024-11-11 21:42:00,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:00,009 INFO L471 AbstractCegarLoop]: Abstraction has 4803 states and 7169 transitions. [2024-11-11 21:42:00,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 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) [2024-11-11 21:42:00,009 INFO L276 IsEmpty]: Start isEmpty. Operand 4803 states and 7169 transitions. [2024-11-11 21:42:00,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-11 21:42:00,018 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:00,018 INFO L218 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] [2024-11-11 21:42:00,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 21:42:00,019 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:00,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:00,019 INFO L85 PathProgramCache]: Analyzing trace with hash 176931542, now seen corresponding path program 1 times [2024-11-11 21:42:00,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:00,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485084942] [2024-11-11 21:42:00,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:00,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:00,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:00,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:00,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485084942] [2024-11-11 21:42:00,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485084942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:00,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:00,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:42:00,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924766966] [2024-11-11 21:42:00,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:00,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:42:00,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:00,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:42:00,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:00,430 INFO L87 Difference]: Start difference. First operand 4803 states and 7169 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) [2024-11-11 21:42:00,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:00,716 INFO L93 Difference]: Finished difference Result 9538 states and 14258 transitions. [2024-11-11 21:42:00,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:42:00,716 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 [2024-11-11 21:42:00,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:00,726 INFO L225 Difference]: With dead ends: 9538 [2024-11-11 21:42:00,726 INFO L226 Difference]: Without dead ends: 4805 [2024-11-11 21:42:00,732 INFO L434 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 [2024-11-11 21:42:00,733 INFO L435 NwaCegarLoop]: 354 mSDtfsCounter, 215 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:00,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 1159 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:42:00,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4805 states. [2024-11-11 21:42:00,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4805 to 4803. [2024-11-11 21:42:00,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4803 states, 4802 states have (on average 1.4760516451478551) internal successors, (7088), 4802 states have internal predecessors, (7088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:00,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4803 states to 4803 states and 7088 transitions. [2024-11-11 21:42:00,816 INFO L78 Accepts]: Start accepts. Automaton has 4803 states and 7088 transitions. Word has length 123 [2024-11-11 21:42:00,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:00,817 INFO L471 AbstractCegarLoop]: Abstraction has 4803 states and 7088 transitions. [2024-11-11 21:42:00,817 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) [2024-11-11 21:42:00,817 INFO L276 IsEmpty]: Start isEmpty. Operand 4803 states and 7088 transitions. [2024-11-11 21:42:00,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 21:42:00,825 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:00,825 INFO L218 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] [2024-11-11 21:42:00,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 21:42:00,826 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:00,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:00,826 INFO L85 PathProgramCache]: Analyzing trace with hash -382371942, now seen corresponding path program 1 times [2024-11-11 21:42:00,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:00,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582038037] [2024-11-11 21:42:00,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:00,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:01,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:01,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:01,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582038037] [2024-11-11 21:42:01,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582038037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:01,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:01,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:42:01,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275069672] [2024-11-11 21:42:01,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:01,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:42:01,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:01,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:42:01,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:01,060 INFO L87 Difference]: Start difference. First operand 4803 states and 7088 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:01,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:01,326 INFO L93 Difference]: Finished difference Result 24885 states and 36792 transitions. [2024-11-11 21:42:01,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:42:01,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-11 21:42:01,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:01,373 INFO L225 Difference]: With dead ends: 24885 [2024-11-11 21:42:01,373 INFO L226 Difference]: Without dead ends: 21155 [2024-11-11 21:42:01,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:42:01,387 INFO L435 NwaCegarLoop]: 450 mSDtfsCounter, 1573 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1573 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:01,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1573 Valid, 1550 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:42:01,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21155 states. [2024-11-11 21:42:01,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21155 to 8726. [2024-11-11 21:42:01,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8726 states, 8725 states have (on average 1.468080229226361) internal successors, (12809), 8725 states have internal predecessors, (12809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:01,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8726 states to 8726 states and 12809 transitions. [2024-11-11 21:42:01,679 INFO L78 Accepts]: Start accepts. Automaton has 8726 states and 12809 transitions. Word has length 124 [2024-11-11 21:42:01,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:01,680 INFO L471 AbstractCegarLoop]: Abstraction has 8726 states and 12809 transitions. [2024-11-11 21:42:01,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:01,680 INFO L276 IsEmpty]: Start isEmpty. Operand 8726 states and 12809 transitions. [2024-11-11 21:42:01,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 21:42:01,696 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:01,696 INFO L218 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] [2024-11-11 21:42:01,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 21:42:01,697 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:01,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:01,697 INFO L85 PathProgramCache]: Analyzing trace with hash -354034678, now seen corresponding path program 1 times [2024-11-11 21:42:01,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:01,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057422604] [2024-11-11 21:42:01,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:01,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:01,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:01,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:01,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057422604] [2024-11-11 21:42:01,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057422604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:01,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:01,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:42:01,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255702053] [2024-11-11 21:42:01,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:01,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:42:01,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:01,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:42:01,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:01,929 INFO L87 Difference]: Start difference. First operand 8726 states and 12809 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:02,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:02,270 INFO L93 Difference]: Finished difference Result 28673 states and 42340 transitions. [2024-11-11 21:42:02,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:42:02,270 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-11 21:42:02,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:02,319 INFO L225 Difference]: With dead ends: 28673 [2024-11-11 21:42:02,319 INFO L226 Difference]: Without dead ends: 24943 [2024-11-11 21:42:02,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:42:02,334 INFO L435 NwaCegarLoop]: 470 mSDtfsCounter, 1430 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1430 SdHoareTripleChecker+Valid, 1757 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:02,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1430 Valid, 1757 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:42:02,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24943 states. [2024-11-11 21:42:02,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24943 to 14571. [2024-11-11 21:42:02,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14571 states, 14570 states have (on average 1.4636925188743994) internal successors, (21326), 14570 states have internal predecessors, (21326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:02,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14571 states to 14571 states and 21326 transitions. [2024-11-11 21:42:02,789 INFO L78 Accepts]: Start accepts. Automaton has 14571 states and 21326 transitions. Word has length 124 [2024-11-11 21:42:02,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:02,790 INFO L471 AbstractCegarLoop]: Abstraction has 14571 states and 21326 transitions. [2024-11-11 21:42:02,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:02,790 INFO L276 IsEmpty]: Start isEmpty. Operand 14571 states and 21326 transitions. [2024-11-11 21:42:02,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 21:42:02,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:02,812 INFO L218 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] [2024-11-11 21:42:02,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 21:42:02,813 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:02,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:02,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1968161173, now seen corresponding path program 1 times [2024-11-11 21:42:02,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:02,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970248684] [2024-11-11 21:42:02,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:02,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:03,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:03,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:03,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970248684] [2024-11-11 21:42:03,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970248684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:03,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:03,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:42:03,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603489744] [2024-11-11 21:42:03,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:03,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:42:03,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:03,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:42:03,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:03,073 INFO L87 Difference]: Start difference. First operand 14571 states and 21326 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:03,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:03,392 INFO L93 Difference]: Finished difference Result 32543 states and 48010 transitions. [2024-11-11 21:42:03,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:42:03,393 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-11 21:42:03,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:03,453 INFO L225 Difference]: With dead ends: 32543 [2024-11-11 21:42:03,454 INFO L226 Difference]: Without dead ends: 28813 [2024-11-11 21:42:03,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:42:03,471 INFO L435 NwaCegarLoop]: 490 mSDtfsCounter, 1489 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1878 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:03,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 1878 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:42:03,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28813 states. [2024-11-11 21:42:03,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28813 to 18531. [2024-11-11 21:42:03,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18531 states, 18530 states have (on average 1.4644360496492175) internal successors, (27136), 18530 states have internal predecessors, (27136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:03,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18531 states to 18531 states and 27136 transitions. [2024-11-11 21:42:03,975 INFO L78 Accepts]: Start accepts. Automaton has 18531 states and 27136 transitions. Word has length 124 [2024-11-11 21:42:03,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:03,975 INFO L471 AbstractCegarLoop]: Abstraction has 18531 states and 27136 transitions. [2024-11-11 21:42:03,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:03,976 INFO L276 IsEmpty]: Start isEmpty. Operand 18531 states and 27136 transitions. [2024-11-11 21:42:04,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 21:42:04,000 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:04,001 INFO L218 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] [2024-11-11 21:42:04,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 21:42:04,001 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:04,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:04,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1282449422, now seen corresponding path program 1 times [2024-11-11 21:42:04,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:04,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955017094] [2024-11-11 21:42:04,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:04,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:04,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:04,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:04,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955017094] [2024-11-11 21:42:04,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955017094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:04,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:04,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:42:04,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834353565] [2024-11-11 21:42:04,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:04,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:42:04,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:04,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:42:04,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:04,354 INFO L87 Difference]: Start difference. First operand 18531 states and 27136 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:04,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:04,671 INFO L93 Difference]: Finished difference Result 36472 states and 53771 transitions. [2024-11-11 21:42:04,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:42:04,671 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-11 21:42:04,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:04,730 INFO L225 Difference]: With dead ends: 36472 [2024-11-11 21:42:04,731 INFO L226 Difference]: Without dead ends: 32742 [2024-11-11 21:42:04,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:42:04,750 INFO L435 NwaCegarLoop]: 504 mSDtfsCounter, 1717 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:04,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 1775 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:42:04,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32742 states. [2024-11-11 21:42:05,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32742 to 22500. [2024-11-11 21:42:05,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22500 states, 22499 states have (on average 1.4649984443753055) internal successors, (32961), 22499 states have internal predecessors, (32961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:05,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22500 states to 22500 states and 32961 transitions. [2024-11-11 21:42:05,296 INFO L78 Accepts]: Start accepts. Automaton has 22500 states and 32961 transitions. Word has length 124 [2024-11-11 21:42:05,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:05,297 INFO L471 AbstractCegarLoop]: Abstraction has 22500 states and 32961 transitions. [2024-11-11 21:42:05,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:05,298 INFO L276 IsEmpty]: Start isEmpty. Operand 22500 states and 32961 transitions. [2024-11-11 21:42:05,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 21:42:05,340 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:05,340 INFO L218 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] [2024-11-11 21:42:05,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 21:42:05,341 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:05,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:05,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1765417965, now seen corresponding path program 1 times [2024-11-11 21:42:05,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:05,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235206205] [2024-11-11 21:42:05,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:05,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:05,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:05,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:05,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235206205] [2024-11-11 21:42:05,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235206205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:05,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:05,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:42:05,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981661022] [2024-11-11 21:42:05,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:05,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:42:05,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:05,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:42:05,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:05,621 INFO L87 Difference]: Start difference. First operand 22500 states and 32961 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:05,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:05,960 INFO L93 Difference]: Finished difference Result 38062 states and 56157 transitions. [2024-11-11 21:42:05,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:42:05,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-11 21:42:05,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:06,135 INFO L225 Difference]: With dead ends: 38062 [2024-11-11 21:42:06,135 INFO L226 Difference]: Without dead ends: 35532 [2024-11-11 21:42:06,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:42:06,162 INFO L435 NwaCegarLoop]: 427 mSDtfsCounter, 1736 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1736 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:06,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1736 Valid, 1310 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:42:06,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35532 states. [2024-11-11 21:42:06,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35532 to 25290. [2024-11-11 21:42:06,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25290 states, 25289 states have (on average 1.4673178061607814) internal successors, (37107), 25289 states have internal predecessors, (37107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:06,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25290 states to 25290 states and 37107 transitions. [2024-11-11 21:42:06,629 INFO L78 Accepts]: Start accepts. Automaton has 25290 states and 37107 transitions. Word has length 124 [2024-11-11 21:42:06,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:06,630 INFO L471 AbstractCegarLoop]: Abstraction has 25290 states and 37107 transitions. [2024-11-11 21:42:06,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:06,630 INFO L276 IsEmpty]: Start isEmpty. Operand 25290 states and 37107 transitions. [2024-11-11 21:42:06,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-11 21:42:06,669 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:06,669 INFO L218 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] [2024-11-11 21:42:06,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 21:42:06,669 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:06,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:06,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1430653822, now seen corresponding path program 1 times [2024-11-11 21:42:06,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:06,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882040973] [2024-11-11 21:42:06,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:06,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:06,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:06,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:06,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882040973] [2024-11-11 21:42:06,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882040973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:06,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:06,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:42:06,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975643922] [2024-11-11 21:42:06,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:06,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:42:06,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:06,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:42:06,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:42:06,793 INFO L87 Difference]: Start difference. First operand 25290 states and 37107 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) [2024-11-11 21:42:07,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:07,234 INFO L93 Difference]: Finished difference Result 74047 states and 108590 transitions. [2024-11-11 21:42:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:42:07,238 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 [2024-11-11 21:42:07,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:07,424 INFO L225 Difference]: With dead ends: 74047 [2024-11-11 21:42:07,424 INFO L226 Difference]: Without dead ends: 50236 [2024-11-11 21:42:07,479 INFO L434 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 [2024-11-11 21:42:07,480 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 153 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 336 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 [2024-11-11 21:42:07,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 336 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:42:07,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50236 states. [2024-11-11 21:42:08,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50236 to 50234. [2024-11-11 21:42:08,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50234 states, 50233 states have (on average 1.4585431887404694) internal successors, (73267), 50233 states have internal predecessors, (73267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:08,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50234 states to 50234 states and 73267 transitions. [2024-11-11 21:42:08,420 INFO L78 Accepts]: Start accepts. Automaton has 50234 states and 73267 transitions. Word has length 126 [2024-11-11 21:42:08,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:08,421 INFO L471 AbstractCegarLoop]: Abstraction has 50234 states and 73267 transitions. [2024-11-11 21:42:08,421 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) [2024-11-11 21:42:08,421 INFO L276 IsEmpty]: Start isEmpty. Operand 50234 states and 73267 transitions. [2024-11-11 21:42:08,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-11 21:42:08,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:08,464 INFO L218 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] [2024-11-11 21:42:08,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 21:42:08,464 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:08,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:08,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1754976601, now seen corresponding path program 1 times [2024-11-11 21:42:08,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:08,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829655073] [2024-11-11 21:42:08,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:08,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:08,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:08,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:08,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829655073] [2024-11-11 21:42:08,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829655073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:08,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:08,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:42:08,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026877193] [2024-11-11 21:42:08,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:08,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:42:08,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:08,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:42:08,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:42:08,696 INFO L87 Difference]: Start difference. First operand 50234 states and 73267 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) [2024-11-11 21:42:09,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:09,280 INFO L93 Difference]: Finished difference Result 146459 states and 213194 transitions. [2024-11-11 21:42:09,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:42:09,280 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 [2024-11-11 21:42:09,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:09,406 INFO L225 Difference]: With dead ends: 146459 [2024-11-11 21:42:09,406 INFO L226 Difference]: Without dead ends: 99677 [2024-11-11 21:42:09,440 INFO L434 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 [2024-11-11 21:42:09,440 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 136 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:09,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 348 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:42:09,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99677 states. [2024-11-11 21:42:10,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99677 to 99675. [2024-11-11 21:42:10,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99675 states, 99674 states have (on average 1.4477797620241988) internal successors, (144306), 99674 states have internal predecessors, (144306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:11,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99675 states to 99675 states and 144306 transitions. [2024-11-11 21:42:11,179 INFO L78 Accepts]: Start accepts. Automaton has 99675 states and 144306 transitions. Word has length 126 [2024-11-11 21:42:11,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:11,180 INFO L471 AbstractCegarLoop]: Abstraction has 99675 states and 144306 transitions. [2024-11-11 21:42:11,181 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) [2024-11-11 21:42:11,181 INFO L276 IsEmpty]: Start isEmpty. Operand 99675 states and 144306 transitions. [2024-11-11 21:42:11,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-11 21:42:11,293 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:11,294 INFO L218 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] [2024-11-11 21:42:11,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 21:42:11,294 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:11,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:11,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1266122690, now seen corresponding path program 1 times [2024-11-11 21:42:11,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:11,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797530382] [2024-11-11 21:42:11,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:11,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:11,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:11,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797530382] [2024-11-11 21:42:11,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797530382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:11,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:11,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:42:11,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136905011] [2024-11-11 21:42:11,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:11,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:42:11,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:11,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:42:11,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:42:11,476 INFO L87 Difference]: Start difference. First operand 99675 states and 144306 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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) [2024-11-11 21:42:12,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:12,775 INFO L93 Difference]: Finished difference Result 267471 states and 388502 transitions. [2024-11-11 21:42:12,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:42:12,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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 [2024-11-11 21:42:12,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:13,002 INFO L225 Difference]: With dead ends: 267471 [2024-11-11 21:42:13,003 INFO L226 Difference]: Without dead ends: 167835 [2024-11-11 21:42:13,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:13,091 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 1103 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:13,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 249 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:42:13,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167835 states. [2024-11-11 21:42:15,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167835 to 167833. [2024-11-11 21:42:15,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167833 states, 167832 states have (on average 1.4460591543924877) internal successors, (242695), 167832 states have internal predecessors, (242695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:15,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167833 states to 167833 states and 242695 transitions. [2024-11-11 21:42:15,688 INFO L78 Accepts]: Start accepts. Automaton has 167833 states and 242695 transitions. Word has length 126 [2024-11-11 21:42:15,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:15,688 INFO L471 AbstractCegarLoop]: Abstraction has 167833 states and 242695 transitions. [2024-11-11 21:42:15,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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) [2024-11-11 21:42:15,688 INFO L276 IsEmpty]: Start isEmpty. Operand 167833 states and 242695 transitions. [2024-11-11 21:42:15,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-11 21:42:15,853 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:15,853 INFO L218 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] [2024-11-11 21:42:15,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 21:42:15,853 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:15,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:15,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1100076108, now seen corresponding path program 1 times [2024-11-11 21:42:15,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:15,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269321387] [2024-11-11 21:42:15,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:15,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:16,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:16,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:16,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269321387] [2024-11-11 21:42:16,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269321387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:16,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:16,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:42:16,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653286499] [2024-11-11 21:42:16,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:16,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:42:16,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:16,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:42:16,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:42:16,035 INFO L87 Difference]: Start difference. First operand 167833 states and 242695 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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) [2024-11-11 21:42:17,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:17,601 INFO L93 Difference]: Finished difference Result 335597 states and 485310 transitions. [2024-11-11 21:42:17,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:42:17,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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 [2024-11-11 21:42:17,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:17,808 INFO L225 Difference]: With dead ends: 335597 [2024-11-11 21:42:17,808 INFO L226 Difference]: Without dead ends: 167833 [2024-11-11 21:42:17,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:17,920 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 712 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:17,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 177 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 21:42:18,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167833 states. [2024-11-11 21:42:20,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167833 to 167833. [2024-11-11 21:42:20,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167833 states, 167832 states have (on average 1.4332487249153916) internal successors, (240545), 167832 states have internal predecessors, (240545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:21,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167833 states to 167833 states and 240545 transitions. [2024-11-11 21:42:21,366 INFO L78 Accepts]: Start accepts. Automaton has 167833 states and 240545 transitions. Word has length 126 [2024-11-11 21:42:21,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:21,366 INFO L471 AbstractCegarLoop]: Abstraction has 167833 states and 240545 transitions. [2024-11-11 21:42:21,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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) [2024-11-11 21:42:21,367 INFO L276 IsEmpty]: Start isEmpty. Operand 167833 states and 240545 transitions. [2024-11-11 21:42:21,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-11 21:42:21,536 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:21,536 INFO L218 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] [2024-11-11 21:42:21,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 21:42:21,537 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:21,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:21,537 INFO L85 PathProgramCache]: Analyzing trace with hash -2088704620, now seen corresponding path program 1 times [2024-11-11 21:42:21,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:21,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161382728] [2024-11-11 21:42:21,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:21,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:21,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:21,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:21,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161382728] [2024-11-11 21:42:21,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161382728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:21,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:21,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:42:21,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984432523] [2024-11-11 21:42:21,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:21,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:42:21,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:21,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:42:21,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:42:21,698 INFO L87 Difference]: Start difference. First operand 167833 states and 240545 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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) [2024-11-11 21:42:23,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:23,363 INFO L93 Difference]: Finished difference Result 248146 states and 356567 transitions. [2024-11-11 21:42:23,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:42:23,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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 [2024-11-11 21:42:23,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:23,541 INFO L225 Difference]: With dead ends: 248146 [2024-11-11 21:42:23,541 INFO L226 Difference]: Without dead ends: 84448 [2024-11-11 21:42:23,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:23,611 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 729 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:23,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 161 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:42:23,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84448 states. [2024-11-11 21:42:24,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84448 to 84448. [2024-11-11 21:42:24,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84448 states, 84447 states have (on average 1.4305303918434047) internal successors, (120804), 84447 states have internal predecessors, (120804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:24,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84448 states to 84448 states and 120804 transitions. [2024-11-11 21:42:24,872 INFO L78 Accepts]: Start accepts. Automaton has 84448 states and 120804 transitions. Word has length 126 [2024-11-11 21:42:24,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:24,872 INFO L471 AbstractCegarLoop]: Abstraction has 84448 states and 120804 transitions. [2024-11-11 21:42:24,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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) [2024-11-11 21:42:24,873 INFO L276 IsEmpty]: Start isEmpty. Operand 84448 states and 120804 transitions. [2024-11-11 21:42:24,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-11 21:42:24,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:24,925 INFO L218 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] [2024-11-11 21:42:24,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 21:42:24,925 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:24,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:24,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1800140574, now seen corresponding path program 1 times [2024-11-11 21:42:24,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:24,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938480071] [2024-11-11 21:42:24,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:24,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:25,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:25,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:25,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938480071] [2024-11-11 21:42:25,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938480071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:25,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:25,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:42:25,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275839508] [2024-11-11 21:42:25,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:25,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:42:25,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:25,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:42:25,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:42:25,039 INFO L87 Difference]: Start difference. First operand 84448 states and 120804 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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) [2024-11-11 21:42:25,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:25,471 INFO L93 Difference]: Finished difference Result 168845 states and 241553 transitions. [2024-11-11 21:42:25,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:42:25,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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 [2024-11-11 21:42:25,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:25,561 INFO L225 Difference]: With dead ends: 168845 [2024-11-11 21:42:25,561 INFO L226 Difference]: Without dead ends: 84448 [2024-11-11 21:42:25,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:25,618 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 707 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:25,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 169 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:42:25,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84448 states. [2024-11-11 21:42:26,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84448 to 84448. [2024-11-11 21:42:26,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84448 states, 84447 states have (on average 1.4182978673013844) internal successors, (119771), 84447 states have internal predecessors, (119771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:27,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84448 states to 84448 states and 119771 transitions. [2024-11-11 21:42:27,034 INFO L78 Accepts]: Start accepts. Automaton has 84448 states and 119771 transitions. Word has length 126 [2024-11-11 21:42:27,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:27,034 INFO L471 AbstractCegarLoop]: Abstraction has 84448 states and 119771 transitions. [2024-11-11 21:42:27,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 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) [2024-11-11 21:42:27,035 INFO L276 IsEmpty]: Start isEmpty. Operand 84448 states and 119771 transitions. [2024-11-11 21:42:27,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-11 21:42:27,092 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:27,092 INFO L218 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] [2024-11-11 21:42:27,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 21:42:27,093 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:27,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:27,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1240496766, now seen corresponding path program 1 times [2024-11-11 21:42:27,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:27,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584827872] [2024-11-11 21:42:27,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:27,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:27,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:27,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:27,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584827872] [2024-11-11 21:42:27,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584827872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:27,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:27,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:42:27,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281442426] [2024-11-11 21:42:27,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:27,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:42:27,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:27,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:42:27,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:42:27,752 INFO L87 Difference]: Start difference. First operand 84448 states and 119771 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) [2024-11-11 21:42:28,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:28,357 INFO L93 Difference]: Finished difference Result 148932 states and 212125 transitions. [2024-11-11 21:42:28,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:42:28,358 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 [2024-11-11 21:42:28,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:28,446 INFO L225 Difference]: With dead ends: 148932 [2024-11-11 21:42:28,446 INFO L226 Difference]: Without dead ends: 69558 [2024-11-11 21:42:28,506 INFO L434 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 [2024-11-11 21:42:28,507 INFO L435 NwaCegarLoop]: 254 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, 448 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 [2024-11-11 21:42:28,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 448 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:42:28,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69558 states. [2024-11-11 21:42:29,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69558 to 69556. [2024-11-11 21:42:30,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69556 states, 69555 states have (on average 1.420415498526346) internal successors, (98797), 69555 states have internal predecessors, (98797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:30,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69556 states to 69556 states and 98797 transitions. [2024-11-11 21:42:30,114 INFO L78 Accepts]: Start accepts. Automaton has 69556 states and 98797 transitions. Word has length 126 [2024-11-11 21:42:30,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:30,114 INFO L471 AbstractCegarLoop]: Abstraction has 69556 states and 98797 transitions. [2024-11-11 21:42:30,114 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) [2024-11-11 21:42:30,114 INFO L276 IsEmpty]: Start isEmpty. Operand 69556 states and 98797 transitions. [2024-11-11 21:42:30,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-11 21:42:30,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:30,141 INFO L218 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] [2024-11-11 21:42:30,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-11 21:42:30,141 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:30,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:30,141 INFO L85 PathProgramCache]: Analyzing trace with hash -2118503005, now seen corresponding path program 1 times [2024-11-11 21:42:30,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:30,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019344288] [2024-11-11 21:42:30,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:30,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:30,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:30,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:30,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019344288] [2024-11-11 21:42:30,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019344288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:30,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:30,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:42:30,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877373813] [2024-11-11 21:42:30,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:30,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:42:30,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:30,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:42:30,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:42:30,273 INFO L87 Difference]: Start difference. First operand 69556 states and 98797 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) [2024-11-11 21:42:30,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:30,541 INFO L93 Difference]: Finished difference Result 101800 states and 144559 transitions. [2024-11-11 21:42:30,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:42:30,541 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 [2024-11-11 21:42:30,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:30,590 INFO L225 Difference]: With dead ends: 101800 [2024-11-11 21:42:30,590 INFO L226 Difference]: Without dead ends: 35288 [2024-11-11 21:42:30,632 INFO L434 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 [2024-11-11 21:42:30,632 INFO L435 NwaCegarLoop]: 264 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, 434 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 [2024-11-11 21:42:30,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 434 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:42:30,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35288 states. [2024-11-11 21:42:30,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35288 to 35286. [2024-11-11 21:42:30,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35286 states, 35285 states have (on average 1.4087856029474282) internal successors, (49709), 35285 states have internal predecessors, (49709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:31,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35286 states to 35286 states and 49709 transitions. [2024-11-11 21:42:31,016 INFO L78 Accepts]: Start accepts. Automaton has 35286 states and 49709 transitions. Word has length 126 [2024-11-11 21:42:31,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:31,017 INFO L471 AbstractCegarLoop]: Abstraction has 35286 states and 49709 transitions. [2024-11-11 21:42:31,017 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) [2024-11-11 21:42:31,017 INFO L276 IsEmpty]: Start isEmpty. Operand 35286 states and 49709 transitions. [2024-11-11 21:42:31,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-11 21:42:31,030 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:31,030 INFO L218 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] [2024-11-11 21:42:31,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-11 21:42:31,030 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:31,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:31,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1390720098, now seen corresponding path program 1 times [2024-11-11 21:42:31,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:31,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114178627] [2024-11-11 21:42:31,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:31,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:32,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:32,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:32,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114178627] [2024-11-11 21:42:32,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114178627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:32,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:32,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 21:42:32,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054450875] [2024-11-11 21:42:32,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:32,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 21:42:32,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:32,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 21:42:32,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-11 21:42:32,073 INFO L87 Difference]: Start difference. First operand 35286 states and 49709 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 9 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) [2024-11-11 21:42:33,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:33,066 INFO L93 Difference]: Finished difference Result 104176 states and 146251 transitions. [2024-11-11 21:42:33,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 21:42:33,066 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 9 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 [2024-11-11 21:42:33,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:33,141 INFO L225 Difference]: With dead ends: 104176 [2024-11-11 21:42:33,142 INFO L226 Difference]: Without dead ends: 70689 [2024-11-11 21:42:33,178 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2024-11-11 21:42:33,179 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 1253 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:33,179 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 1039 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 21:42:33,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70689 states. [2024-11-11 21:42:33,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70689 to 35361. [2024-11-11 21:42:33,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35361 states, 35360 states have (on average 1.4083993212669683) internal successors, (49801), 35360 states have internal predecessors, (49801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:34,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35361 states to 35361 states and 49801 transitions. [2024-11-11 21:42:34,221 INFO L78 Accepts]: Start accepts. Automaton has 35361 states and 49801 transitions. Word has length 126 [2024-11-11 21:42:34,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:34,221 INFO L471 AbstractCegarLoop]: Abstraction has 35361 states and 49801 transitions. [2024-11-11 21:42:34,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 9 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) [2024-11-11 21:42:34,221 INFO L276 IsEmpty]: Start isEmpty. Operand 35361 states and 49801 transitions. [2024-11-11 21:42:34,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-11 21:42:34,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:34,234 INFO L218 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] [2024-11-11 21:42:34,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-11 21:42:34,235 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:34,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:34,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1287926225, now seen corresponding path program 1 times [2024-11-11 21:42:34,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:34,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143977275] [2024-11-11 21:42:34,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:34,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:34,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:34,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:34,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143977275] [2024-11-11 21:42:34,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143977275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:34,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:34,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:42:34,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715259792] [2024-11-11 21:42:34,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:34,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:42:34,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:34,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:42:34,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:42:34,345 INFO L87 Difference]: Start difference. First operand 35361 states and 49801 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) [2024-11-11 21:42:34,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:34,515 INFO L93 Difference]: Finished difference Result 51485 states and 72475 transitions. [2024-11-11 21:42:34,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:42:34,515 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 [2024-11-11 21:42:34,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:34,543 INFO L225 Difference]: With dead ends: 51485 [2024-11-11 21:42:34,543 INFO L226 Difference]: Without dead ends: 18222 [2024-11-11 21:42:34,565 INFO L434 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 [2024-11-11 21:42:34,566 INFO L435 NwaCegarLoop]: 273 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, 419 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 [2024-11-11 21:42:34,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 419 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:42:34,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18222 states. [2024-11-11 21:42:34,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18222 to 18220. [2024-11-11 21:42:34,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18220 states, 18219 states have (on average 1.3965640265656731) internal successors, (25444), 18219 states have internal predecessors, (25444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:34,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18220 states to 18220 states and 25444 transitions. [2024-11-11 21:42:34,762 INFO L78 Accepts]: Start accepts. Automaton has 18220 states and 25444 transitions. Word has length 126 [2024-11-11 21:42:34,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:34,762 INFO L471 AbstractCegarLoop]: Abstraction has 18220 states and 25444 transitions. [2024-11-11 21:42:34,763 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) [2024-11-11 21:42:34,763 INFO L276 IsEmpty]: Start isEmpty. Operand 18220 states and 25444 transitions. [2024-11-11 21:42:34,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-11 21:42:34,772 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:34,772 INFO L218 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] [2024-11-11 21:42:34,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-11 21:42:34,773 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:34,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:34,773 INFO L85 PathProgramCache]: Analyzing trace with hash 462057740, now seen corresponding path program 1 times [2024-11-11 21:42:34,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:34,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348052857] [2024-11-11 21:42:34,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:34,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:35,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:35,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:35,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348052857] [2024-11-11 21:42:35,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348052857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:35,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:35,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 21:42:35,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33394976] [2024-11-11 21:42:35,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:35,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 21:42:35,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:35,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 21:42:35,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 21:42:35,162 INFO L87 Difference]: Start difference. First operand 18220 states and 25444 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 9 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) [2024-11-11 21:42:35,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:35,836 INFO L93 Difference]: Finished difference Result 53376 states and 74232 transitions. [2024-11-11 21:42:35,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:42:35,837 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 9 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 [2024-11-11 21:42:35,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:35,887 INFO L225 Difference]: With dead ends: 53376 [2024-11-11 21:42:35,888 INFO L226 Difference]: Without dead ends: 36408 [2024-11-11 21:42:35,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-11 21:42:35,908 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 769 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:35,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 695 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 21:42:35,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36408 states. [2024-11-11 21:42:36,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36408 to 19022. [2024-11-11 21:42:36,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19022 states, 19021 states have (on average 1.3933021397402872) internal successors, (26502), 19021 states have internal predecessors, (26502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:36,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19022 states to 19022 states and 26502 transitions. [2024-11-11 21:42:36,577 INFO L78 Accepts]: Start accepts. Automaton has 19022 states and 26502 transitions. Word has length 126 [2024-11-11 21:42:36,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:36,578 INFO L471 AbstractCegarLoop]: Abstraction has 19022 states and 26502 transitions. [2024-11-11 21:42:36,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 9 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) [2024-11-11 21:42:36,578 INFO L276 IsEmpty]: Start isEmpty. Operand 19022 states and 26502 transitions. [2024-11-11 21:42:36,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-11 21:42:36,591 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:36,591 INFO L218 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] [2024-11-11 21:42:36,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-11 21:42:36,592 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:36,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:36,592 INFO L85 PathProgramCache]: Analyzing trace with hash -509947787, now seen corresponding path program 1 times [2024-11-11 21:42:36,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:36,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342227921] [2024-11-11 21:42:36,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:36,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:36,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:36,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:36,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342227921] [2024-11-11 21:42:36,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342227921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:36,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:36,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:42:36,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293866424] [2024-11-11 21:42:36,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:36,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:42:36,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:36,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:42:36,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:42:36,940 INFO L87 Difference]: Start difference. First operand 19022 states and 26502 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) [2024-11-11 21:42:37,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:37,028 INFO L93 Difference]: Finished difference Result 27086 states and 37736 transitions. [2024-11-11 21:42:37,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:42:37,029 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 [2024-11-11 21:42:37,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:37,043 INFO L225 Difference]: With dead ends: 27086 [2024-11-11 21:42:37,043 INFO L226 Difference]: Without dead ends: 9852 [2024-11-11 21:42:37,056 INFO L434 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 [2024-11-11 21:42:37,057 INFO L435 NwaCegarLoop]: 236 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, 388 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 [2024-11-11 21:42:37,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 388 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:42:37,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9852 states. [2024-11-11 21:42:37,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9852 to 9850. [2024-11-11 21:42:37,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9850 states, 9849 states have (on average 1.3796324499949233) internal successors, (13588), 9849 states have internal predecessors, (13588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:37,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9850 states to 9850 states and 13588 transitions. [2024-11-11 21:42:37,262 INFO L78 Accepts]: Start accepts. Automaton has 9850 states and 13588 transitions. Word has length 126 [2024-11-11 21:42:37,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:37,263 INFO L471 AbstractCegarLoop]: Abstraction has 9850 states and 13588 transitions. [2024-11-11 21:42:37,263 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) [2024-11-11 21:42:37,263 INFO L276 IsEmpty]: Start isEmpty. Operand 9850 states and 13588 transitions. [2024-11-11 21:42:37,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-11 21:42:37,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:37,270 INFO L218 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] [2024-11-11 21:42:37,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-11 21:42:37,271 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:37,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:37,271 INFO L85 PathProgramCache]: Analyzing trace with hash -424368476, now seen corresponding path program 1 times [2024-11-11 21:42:37,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:37,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871129135] [2024-11-11 21:42:37,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:37,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:37,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:37,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:37,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871129135] [2024-11-11 21:42:37,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871129135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:37,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:37,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 21:42:37,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135670893] [2024-11-11 21:42:37,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:37,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 21:42:37,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:37,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 21:42:37,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 21:42:37,693 INFO L87 Difference]: Start difference. First operand 9850 states and 13588 transitions. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 9 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) [2024-11-11 21:42:38,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:38,258 INFO L93 Difference]: Finished difference Result 22703 states and 31273 transitions. [2024-11-11 21:42:38,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 21:42:38,258 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 9 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 [2024-11-11 21:42:38,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:38,276 INFO L225 Difference]: With dead ends: 22703 [2024-11-11 21:42:38,277 INFO L226 Difference]: Without dead ends: 13454 [2024-11-11 21:42:38,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-11 21:42:38,287 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 1022 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:38,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 694 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 21:42:38,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13454 states. [2024-11-11 21:42:38,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13454 to 9292. [2024-11-11 21:42:38,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9292 states, 9291 states have (on average 1.3766010117317835) internal successors, (12790), 9291 states have internal predecessors, (12790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:38,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9292 states to 9292 states and 12790 transitions. [2024-11-11 21:42:38,427 INFO L78 Accepts]: Start accepts. Automaton has 9292 states and 12790 transitions. Word has length 126 [2024-11-11 21:42:38,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:38,427 INFO L471 AbstractCegarLoop]: Abstraction has 9292 states and 12790 transitions. [2024-11-11 21:42:38,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 9 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) [2024-11-11 21:42:38,428 INFO L276 IsEmpty]: Start isEmpty. Operand 9292 states and 12790 transitions. [2024-11-11 21:42:38,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 21:42:38,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:38,434 INFO L218 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] [2024-11-11 21:42:38,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-11 21:42:38,434 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:38,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:38,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1474768835, now seen corresponding path program 1 times [2024-11-11 21:42:38,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:38,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911735651] [2024-11-11 21:42:38,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:38,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:38,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:38,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:38,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911735651] [2024-11-11 21:42:38,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911735651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:38,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:38,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:42:38,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190125389] [2024-11-11 21:42:38,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:38,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:42:38,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:38,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:42:38,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:42:38,525 INFO L87 Difference]: Start difference. First operand 9292 states and 12790 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 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) [2024-11-11 21:42:38,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:38,665 INFO L93 Difference]: Finished difference Result 17866 states and 24675 transitions. [2024-11-11 21:42:38,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:42:38,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 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 [2024-11-11 21:42:38,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:38,675 INFO L225 Difference]: With dead ends: 17866 [2024-11-11 21:42:38,676 INFO L226 Difference]: Without dead ends: 8890 [2024-11-11 21:42:38,683 INFO L434 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 [2024-11-11 21:42:38,684 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 161 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:38,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 211 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:42:38,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8890 states. [2024-11-11 21:42:38,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8890 to 8890. [2024-11-11 21:42:38,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8890 states, 8889 states have (on average 1.369445381932726) internal successors, (12173), 8889 states have internal predecessors, (12173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:38,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8890 states to 8890 states and 12173 transitions. [2024-11-11 21:42:38,873 INFO L78 Accepts]: Start accepts. Automaton has 8890 states and 12173 transitions. Word has length 127 [2024-11-11 21:42:38,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:38,873 INFO L471 AbstractCegarLoop]: Abstraction has 8890 states and 12173 transitions. [2024-11-11 21:42:38,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 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) [2024-11-11 21:42:38,873 INFO L276 IsEmpty]: Start isEmpty. Operand 8890 states and 12173 transitions. [2024-11-11 21:42:38,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 21:42:38,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:38,877 INFO L218 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] [2024-11-11 21:42:38,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-11 21:42:38,877 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:38,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:38,878 INFO L85 PathProgramCache]: Analyzing trace with hash -170451148, now seen corresponding path program 1 times [2024-11-11 21:42:38,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:38,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081011858] [2024-11-11 21:42:38,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:38,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:39,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:39,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:39,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081011858] [2024-11-11 21:42:39,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081011858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:39,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:39,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 21:42:39,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273161010] [2024-11-11 21:42:39,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:39,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 21:42:39,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:39,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 21:42:39,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 21:42:39,186 INFO L87 Difference]: Start difference. First operand 8890 states and 12173 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 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) [2024-11-11 21:42:39,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:39,809 INFO L93 Difference]: Finished difference Result 26302 states and 35972 transitions. [2024-11-11 21:42:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:42:39,810 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 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 [2024-11-11 21:42:39,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:39,831 INFO L225 Difference]: With dead ends: 26302 [2024-11-11 21:42:39,831 INFO L226 Difference]: Without dead ends: 17783 [2024-11-11 21:42:39,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-11 21:42:39,842 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 576 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:39,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 1040 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 21:42:39,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17783 states. [2024-11-11 21:42:39,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17783 to 9026. [2024-11-11 21:42:39,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9026 states, 9025 states have (on average 1.365983379501385) internal successors, (12328), 9025 states have internal predecessors, (12328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:39,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9026 states to 9026 states and 12328 transitions. [2024-11-11 21:42:39,958 INFO L78 Accepts]: Start accepts. Automaton has 9026 states and 12328 transitions. Word has length 127 [2024-11-11 21:42:39,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:39,959 INFO L471 AbstractCegarLoop]: Abstraction has 9026 states and 12328 transitions. [2024-11-11 21:42:39,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 9 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) [2024-11-11 21:42:39,959 INFO L276 IsEmpty]: Start isEmpty. Operand 9026 states and 12328 transitions. [2024-11-11 21:42:39,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-11 21:42:39,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:39,962 INFO L218 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] [2024-11-11 21:42:39,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-11 21:42:39,962 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:39,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:39,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1880425359, now seen corresponding path program 1 times [2024-11-11 21:42:39,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:39,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639772660] [2024-11-11 21:42:39,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:39,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:40,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:40,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:40,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639772660] [2024-11-11 21:42:40,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639772660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:40,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:40,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 21:42:40,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989620137] [2024-11-11 21:42:40,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:40,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 21:42:40,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:40,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 21:42:40,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 21:42:40,265 INFO L87 Difference]: Start difference. First operand 9026 states and 12328 transitions. Second operand has 10 states, 10 states have (on average 12.8) internal successors, (128), 9 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) [2024-11-11 21:42:40,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:40,837 INFO L93 Difference]: Finished difference Result 26519 states and 36181 transitions. [2024-11-11 21:42:40,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:42:40,837 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 9 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 [2024-11-11 21:42:40,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:40,861 INFO L225 Difference]: With dead ends: 26519 [2024-11-11 21:42:40,862 INFO L226 Difference]: Without dead ends: 18263 [2024-11-11 21:42:40,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-11 21:42:40,872 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 1377 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:40,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 795 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 21:42:40,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18263 states. [2024-11-11 21:42:40,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18263 to 9322. [2024-11-11 21:42:40,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9322 states, 9321 states have (on average 1.3609054822443944) internal successors, (12685), 9321 states have internal predecessors, (12685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:40,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9322 states to 9322 states and 12685 transitions. [2024-11-11 21:42:40,992 INFO L78 Accepts]: Start accepts. Automaton has 9322 states and 12685 transitions. Word has length 128 [2024-11-11 21:42:40,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:40,992 INFO L471 AbstractCegarLoop]: Abstraction has 9322 states and 12685 transitions. [2024-11-11 21:42:40,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 9 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) [2024-11-11 21:42:40,992 INFO L276 IsEmpty]: Start isEmpty. Operand 9322 states and 12685 transitions. [2024-11-11 21:42:40,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-11 21:42:40,997 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:40,997 INFO L218 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] [2024-11-11 21:42:40,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-11 21:42:40,998 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:40,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:40,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1689231426, now seen corresponding path program 1 times [2024-11-11 21:42:40,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:40,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374271593] [2024-11-11 21:42:40,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:40,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:41,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:41,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:41,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374271593] [2024-11-11 21:42:41,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374271593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:41,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:41,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:42:41,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795523876] [2024-11-11 21:42:41,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:41,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:42:41,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:41,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:42:41,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:42:41,124 INFO L87 Difference]: Start difference. First operand 9322 states and 12685 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 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) [2024-11-11 21:42:41,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:41,169 INFO L93 Difference]: Finished difference Result 13304 states and 18147 transitions. [2024-11-11 21:42:41,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:42:41,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 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 [2024-11-11 21:42:41,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:41,176 INFO L225 Difference]: With dead ends: 13304 [2024-11-11 21:42:41,176 INFO L226 Difference]: Without dead ends: 5030 [2024-11-11 21:42:41,182 INFO L434 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 [2024-11-11 21:42:41,182 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 79 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 353 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 [2024-11-11 21:42:41,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 353 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:42:41,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2024-11-11 21:42:41,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5028. [2024-11-11 21:42:41,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5028 states, 5027 states have (on average 1.3385717127511438) internal successors, (6729), 5027 states have internal predecessors, (6729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:41,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 6729 transitions. [2024-11-11 21:42:41,259 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 6729 transitions. Word has length 128 [2024-11-11 21:42:41,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:41,260 INFO L471 AbstractCegarLoop]: Abstraction has 5028 states and 6729 transitions. [2024-11-11 21:42:41,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 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) [2024-11-11 21:42:41,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 6729 transitions. [2024-11-11 21:42:41,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-11 21:42:41,263 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:41,263 INFO L218 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] [2024-11-11 21:42:41,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-11 21:42:41,263 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:41,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:41,264 INFO L85 PathProgramCache]: Analyzing trace with hash -2017257080, now seen corresponding path program 1 times [2024-11-11 21:42:41,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:41,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342531448] [2024-11-11 21:42:41,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:41,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:41,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:41,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:41,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342531448] [2024-11-11 21:42:41,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342531448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:41,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:41,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:42:41,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725333144] [2024-11-11 21:42:41,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:41,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:42:41,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:41,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:42:41,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:42:41,355 INFO L87 Difference]: Start difference. First operand 5028 states and 6729 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:41,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:41,569 INFO L93 Difference]: Finished difference Result 9550 states and 12768 transitions. [2024-11-11 21:42:41,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:42:41,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2024-11-11 21:42:41,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:41,575 INFO L225 Difference]: With dead ends: 9550 [2024-11-11 21:42:41,575 INFO L226 Difference]: Without dead ends: 5570 [2024-11-11 21:42:41,578 INFO L434 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 [2024-11-11 21:42:41,579 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 129 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:41,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 395 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:42:41,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5570 states. [2024-11-11 21:42:41,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5570 to 4893. [2024-11-11 21:42:41,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4893 states, 4892 states have (on average 1.3374897792313982) internal successors, (6543), 4892 states have internal predecessors, (6543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:41,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4893 states to 4893 states and 6543 transitions. [2024-11-11 21:42:41,619 INFO L78 Accepts]: Start accepts. Automaton has 4893 states and 6543 transitions. Word has length 129 [2024-11-11 21:42:41,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:41,620 INFO L471 AbstractCegarLoop]: Abstraction has 4893 states and 6543 transitions. [2024-11-11 21:42:41,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:41,620 INFO L276 IsEmpty]: Start isEmpty. Operand 4893 states and 6543 transitions. [2024-11-11 21:42:41,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-11 21:42:41,622 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:41,622 INFO L218 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] [2024-11-11 21:42:41,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-11 21:42:41,622 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:41,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:41,623 INFO L85 PathProgramCache]: Analyzing trace with hash -743389075, now seen corresponding path program 1 times [2024-11-11 21:42:41,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:41,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707329599] [2024-11-11 21:42:41,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:41,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:41,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:41,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:41,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707329599] [2024-11-11 21:42:41,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707329599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:41,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:41,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:42:41,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113958420] [2024-11-11 21:42:41,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:41,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:42:41,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:41,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:42:41,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:42:41,948 INFO L87 Difference]: Start difference. First operand 4893 states and 6543 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:41,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:41,981 INFO L93 Difference]: Finished difference Result 8921 states and 12000 transitions. [2024-11-11 21:42:41,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:42:41,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2024-11-11 21:42:41,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:41,986 INFO L225 Difference]: With dead ends: 8921 [2024-11-11 21:42:41,986 INFO L226 Difference]: Without dead ends: 4880 [2024-11-11 21:42:41,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:42:41,990 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 0 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 657 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 [2024-11-11 21:42:41,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 657 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:42:41,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4880 states. [2024-11-11 21:42:42,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4880 to 4880. [2024-11-11 21:42:42,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4880 states, 4879 states have (on average 1.3308054929288788) internal successors, (6493), 4879 states have internal predecessors, (6493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:42,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4880 states to 4880 states and 6493 transitions. [2024-11-11 21:42:42,037 INFO L78 Accepts]: Start accepts. Automaton has 4880 states and 6493 transitions. Word has length 129 [2024-11-11 21:42:42,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:42,037 INFO L471 AbstractCegarLoop]: Abstraction has 4880 states and 6493 transitions. [2024-11-11 21:42:42,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:42,037 INFO L276 IsEmpty]: Start isEmpty. Operand 4880 states and 6493 transitions. [2024-11-11 21:42:42,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-11 21:42:42,039 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:42,039 INFO L218 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] [2024-11-11 21:42:42,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-11 21:42:42,039 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:42,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:42,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1123681743, now seen corresponding path program 1 times [2024-11-11 21:42:42,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:42,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715858886] [2024-11-11 21:42:42,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:42,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:42,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:42,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:42,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715858886] [2024-11-11 21:42:42,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715858886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:42,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:42,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:42:42,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882516824] [2024-11-11 21:42:42,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:42,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:42:42,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:42,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:42:42,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:42,240 INFO L87 Difference]: Start difference. First operand 4880 states and 6493 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) [2024-11-11 21:42:42,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:42,364 INFO L93 Difference]: Finished difference Result 7724 states and 10361 transitions. [2024-11-11 21:42:42,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:42:42,365 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 [2024-11-11 21:42:42,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:42,374 INFO L225 Difference]: With dead ends: 7724 [2024-11-11 21:42:42,374 INFO L226 Difference]: Without dead ends: 7074 [2024-11-11 21:42:42,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:42:42,377 INFO L435 NwaCegarLoop]: 364 mSDtfsCounter, 1258 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:42,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1258 Valid, 918 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:42:42,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7074 states. [2024-11-11 21:42:42,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7074 to 7066. [2024-11-11 21:42:42,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7066 states, 7065 states have (on average 1.3392781316348195) internal successors, (9462), 7065 states have internal predecessors, (9462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:42,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7066 states to 7066 states and 9462 transitions. [2024-11-11 21:42:42,437 INFO L78 Accepts]: Start accepts. Automaton has 7066 states and 9462 transitions. Word has length 131 [2024-11-11 21:42:42,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:42,437 INFO L471 AbstractCegarLoop]: Abstraction has 7066 states and 9462 transitions. [2024-11-11 21:42:42,438 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) [2024-11-11 21:42:42,438 INFO L276 IsEmpty]: Start isEmpty. Operand 7066 states and 9462 transitions. [2024-11-11 21:42:42,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-11 21:42:42,439 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:42,440 INFO L218 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] [2024-11-11 21:42:42,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-11 21:42:42,440 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:42,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:42,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2085558066, now seen corresponding path program 1 times [2024-11-11 21:42:42,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:42,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683925195] [2024-11-11 21:42:42,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:42,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:42,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:42,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:42,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683925195] [2024-11-11 21:42:42,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683925195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:42,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:42,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:42:42,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493868161] [2024-11-11 21:42:42,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:42,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:42:42,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:42,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:42:42,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:42,623 INFO L87 Difference]: Start difference. First operand 7066 states and 9462 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) [2024-11-11 21:42:42,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:42,889 INFO L93 Difference]: Finished difference Result 13402 states and 18075 transitions. [2024-11-11 21:42:42,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:42:42,889 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 [2024-11-11 21:42:42,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:42,903 INFO L225 Difference]: With dead ends: 13402 [2024-11-11 21:42:42,903 INFO L226 Difference]: Without dead ends: 10654 [2024-11-11 21:42:42,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:42:42,910 INFO L435 NwaCegarLoop]: 400 mSDtfsCounter, 1118 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:42,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 965 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:42:42,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10654 states. [2024-11-11 21:42:43,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10654 to 9550. [2024-11-11 21:42:43,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9550 states, 9549 states have (on average 1.3471567703424443) internal successors, (12864), 9549 states have internal predecessors, (12864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:43,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9550 states to 9550 states and 12864 transitions. [2024-11-11 21:42:43,033 INFO L78 Accepts]: Start accepts. Automaton has 9550 states and 12864 transitions. Word has length 131 [2024-11-11 21:42:43,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:43,033 INFO L471 AbstractCegarLoop]: Abstraction has 9550 states and 12864 transitions. [2024-11-11 21:42:43,033 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) [2024-11-11 21:42:43,034 INFO L276 IsEmpty]: Start isEmpty. Operand 9550 states and 12864 transitions. [2024-11-11 21:42:43,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-11 21:42:43,036 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:43,036 INFO L218 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] [2024-11-11 21:42:43,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-11 21:42:43,036 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:43,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:43,037 INFO L85 PathProgramCache]: Analyzing trace with hash -157080619, now seen corresponding path program 1 times [2024-11-11 21:42:43,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:43,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004711826] [2024-11-11 21:42:43,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:43,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:43,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:43,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:43,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004711826] [2024-11-11 21:42:43,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004711826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:43,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:43,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:42:43,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295652595] [2024-11-11 21:42:43,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:43,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:42:43,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:43,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:42:43,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:43,241 INFO L87 Difference]: Start difference. First operand 9550 states and 12864 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) [2024-11-11 21:42:43,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:43,408 INFO L93 Difference]: Finished difference Result 19610 states and 26580 transitions. [2024-11-11 21:42:43,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:42:43,409 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 [2024-11-11 21:42:43,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:43,428 INFO L225 Difference]: With dead ends: 19610 [2024-11-11 21:42:43,428 INFO L226 Difference]: Without dead ends: 14414 [2024-11-11 21:42:43,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:42:43,436 INFO L435 NwaCegarLoop]: 393 mSDtfsCounter, 1106 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:43,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1106 Valid, 946 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:42:43,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14414 states. [2024-11-11 21:42:43,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14414 to 11474. [2024-11-11 21:42:43,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11474 states, 11473 states have (on average 1.3498649002004706) internal successors, (15487), 11473 states have internal predecessors, (15487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:43,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11474 states to 11474 states and 15487 transitions. [2024-11-11 21:42:43,590 INFO L78 Accepts]: Start accepts. Automaton has 11474 states and 15487 transitions. Word has length 131 [2024-11-11 21:42:43,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:43,591 INFO L471 AbstractCegarLoop]: Abstraction has 11474 states and 15487 transitions. [2024-11-11 21:42:43,591 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) [2024-11-11 21:42:43,591 INFO L276 IsEmpty]: Start isEmpty. Operand 11474 states and 15487 transitions. [2024-11-11 21:42:43,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-11 21:42:43,594 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:43,594 INFO L218 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] [2024-11-11 21:42:43,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-11 21:42:43,594 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:43,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:43,595 INFO L85 PathProgramCache]: Analyzing trace with hash 86210734, now seen corresponding path program 1 times [2024-11-11 21:42:43,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:43,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274790861] [2024-11-11 21:42:43,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:43,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:43,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:43,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:43,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274790861] [2024-11-11 21:42:43,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274790861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:43,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:43,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:42:43,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287027771] [2024-11-11 21:42:43,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:43,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:42:43,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:43,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:42:43,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:42:43,654 INFO L87 Difference]: Start difference. First operand 11474 states and 15487 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 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) [2024-11-11 21:42:43,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:43,731 INFO L93 Difference]: Finished difference Result 27252 states and 36229 transitions. [2024-11-11 21:42:43,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:42:43,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 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 [2024-11-11 21:42:43,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:43,757 INFO L225 Difference]: With dead ends: 27252 [2024-11-11 21:42:43,757 INFO L226 Difference]: Without dead ends: 16826 [2024-11-11 21:42:43,768 INFO L434 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 [2024-11-11 21:42:43,769 INFO L435 NwaCegarLoop]: 257 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, 459 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 [2024-11-11 21:42:43,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 459 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:42:43,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16826 states. [2024-11-11 21:42:43,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16826 to 16164. [2024-11-11 21:42:43,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16164 states, 16163 states have (on average 1.2865185918455733) internal successors, (20794), 16163 states have internal predecessors, (20794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:43,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16164 states to 16164 states and 20794 transitions. [2024-11-11 21:42:43,933 INFO L78 Accepts]: Start accepts. Automaton has 16164 states and 20794 transitions. Word has length 131 [2024-11-11 21:42:43,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:43,933 INFO L471 AbstractCegarLoop]: Abstraction has 16164 states and 20794 transitions. [2024-11-11 21:42:43,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 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) [2024-11-11 21:42:43,933 INFO L276 IsEmpty]: Start isEmpty. Operand 16164 states and 20794 transitions. [2024-11-11 21:42:43,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-11 21:42:43,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:43,936 INFO L218 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] [2024-11-11 21:42:43,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-11 21:42:43,936 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:43,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:43,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1882399855, now seen corresponding path program 1 times [2024-11-11 21:42:43,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:43,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317366876] [2024-11-11 21:42:43,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:43,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:44,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:44,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:44,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317366876] [2024-11-11 21:42:44,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317366876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:44,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:44,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:42:44,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003175473] [2024-11-11 21:42:44,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:44,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:42:44,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:44,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:42:44,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:44,124 INFO L87 Difference]: Start difference. First operand 16164 states and 20794 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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) [2024-11-11 21:42:44,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:44,310 INFO L93 Difference]: Finished difference Result 37886 states and 49061 transitions. [2024-11-11 21:42:44,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:42:44,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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 [2024-11-11 21:42:44,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:44,349 INFO L225 Difference]: With dead ends: 37886 [2024-11-11 21:42:44,349 INFO L226 Difference]: Without dead ends: 27694 [2024-11-11 21:42:44,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:42:44,366 INFO L435 NwaCegarLoop]: 428 mSDtfsCounter, 993 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:44,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 1054 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:42:44,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27694 states. [2024-11-11 21:42:44,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27694 to 27678. [2024-11-11 21:42:44,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27678 states, 27677 states have (on average 1.2924088593416916) internal successors, (35770), 27677 states have internal predecessors, (35770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:44,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27678 states to 27678 states and 35770 transitions. [2024-11-11 21:42:44,847 INFO L78 Accepts]: Start accepts. Automaton has 27678 states and 35770 transitions. Word has length 132 [2024-11-11 21:42:44,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:44,847 INFO L471 AbstractCegarLoop]: Abstraction has 27678 states and 35770 transitions. [2024-11-11 21:42:44,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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) [2024-11-11 21:42:44,847 INFO L276 IsEmpty]: Start isEmpty. Operand 27678 states and 35770 transitions. [2024-11-11 21:42:44,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-11 21:42:44,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:44,850 INFO L218 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] [2024-11-11 21:42:44,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-11 21:42:44,850 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:44,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:44,850 INFO L85 PathProgramCache]: Analyzing trace with hash -360238830, now seen corresponding path program 1 times [2024-11-11 21:42:44,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:44,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131132118] [2024-11-11 21:42:44,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:44,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:45,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:45,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:45,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131132118] [2024-11-11 21:42:45,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131132118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:45,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:45,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:42:45,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836354750] [2024-11-11 21:42:45,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:45,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:42:45,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:45,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:42:45,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:45,037 INFO L87 Difference]: Start difference. First operand 27678 states and 35770 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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) [2024-11-11 21:42:45,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:45,361 INFO L93 Difference]: Finished difference Result 73298 states and 95145 transitions. [2024-11-11 21:42:45,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:42:45,362 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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 [2024-11-11 21:42:45,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:45,421 INFO L225 Difference]: With dead ends: 73298 [2024-11-11 21:42:45,421 INFO L226 Difference]: Without dead ends: 51606 [2024-11-11 21:42:45,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:42:45,446 INFO L435 NwaCegarLoop]: 376 mSDtfsCounter, 1088 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:45,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 1155 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:42:45,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51606 states. [2024-11-11 21:42:45,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51606 to 51050. [2024-11-11 21:42:45,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51050 states, 51049 states have (on average 1.296127250288938) internal successors, (66166), 51049 states have internal predecessors, (66166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:45,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51050 states to 51050 states and 66166 transitions. [2024-11-11 21:42:45,970 INFO L78 Accepts]: Start accepts. Automaton has 51050 states and 66166 transitions. Word has length 132 [2024-11-11 21:42:45,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:45,970 INFO L471 AbstractCegarLoop]: Abstraction has 51050 states and 66166 transitions. [2024-11-11 21:42:45,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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) [2024-11-11 21:42:45,971 INFO L276 IsEmpty]: Start isEmpty. Operand 51050 states and 66166 transitions. [2024-11-11 21:42:45,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-11 21:42:45,973 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:45,974 INFO L218 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] [2024-11-11 21:42:45,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-11 21:42:45,974 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:45,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:45,974 INFO L85 PathProgramCache]: Analyzing trace with hash -606843889, now seen corresponding path program 1 times [2024-11-11 21:42:45,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:45,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353485944] [2024-11-11 21:42:45,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:45,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:46,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:46,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:46,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353485944] [2024-11-11 21:42:46,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353485944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:46,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:46,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:42:46,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422869159] [2024-11-11 21:42:46,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:46,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:42:46,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:46,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:42:46,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:46,254 INFO L87 Difference]: Start difference. First operand 51050 states and 66166 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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) [2024-11-11 21:42:46,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:46,575 INFO L93 Difference]: Finished difference Result 105176 states and 136667 transitions. [2024-11-11 21:42:46,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:42:46,575 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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 [2024-11-11 21:42:46,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:46,645 INFO L225 Difference]: With dead ends: 105176 [2024-11-11 21:42:46,646 INFO L226 Difference]: Without dead ends: 60172 [2024-11-11 21:42:46,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:42:46,684 INFO L435 NwaCegarLoop]: 457 mSDtfsCounter, 995 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:46,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1258 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:42:46,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60172 states. [2024-11-11 21:42:47,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60172 to 56054. [2024-11-11 21:42:47,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56054 states, 56053 states have (on average 1.296594294685387) internal successors, (72678), 56053 states have internal predecessors, (72678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:47,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56054 states to 56054 states and 72678 transitions. [2024-11-11 21:42:47,377 INFO L78 Accepts]: Start accepts. Automaton has 56054 states and 72678 transitions. Word has length 132 [2024-11-11 21:42:47,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:47,377 INFO L471 AbstractCegarLoop]: Abstraction has 56054 states and 72678 transitions. [2024-11-11 21:42:47,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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) [2024-11-11 21:42:47,378 INFO L276 IsEmpty]: Start isEmpty. Operand 56054 states and 72678 transitions. [2024-11-11 21:42:47,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-11 21:42:47,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:47,380 INFO L218 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] [2024-11-11 21:42:47,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-11 21:42:47,380 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:47,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:47,381 INFO L85 PathProgramCache]: Analyzing trace with hash -2037651470, now seen corresponding path program 1 times [2024-11-11 21:42:47,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:47,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680756758] [2024-11-11 21:42:47,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:47,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:47,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:47,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:47,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680756758] [2024-11-11 21:42:47,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680756758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:47,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:47,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:42:47,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390216415] [2024-11-11 21:42:47,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:47,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:42:47,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:47,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:42:47,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:47,959 INFO L87 Difference]: Start difference. First operand 56054 states and 72678 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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) [2024-11-11 21:42:48,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:48,389 INFO L93 Difference]: Finished difference Result 112268 states and 145811 transitions. [2024-11-11 21:42:48,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:42:48,389 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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 [2024-11-11 21:42:48,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:48,484 INFO L225 Difference]: With dead ends: 112268 [2024-11-11 21:42:48,484 INFO L226 Difference]: Without dead ends: 62230 [2024-11-11 21:42:48,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:42:48,532 INFO L435 NwaCegarLoop]: 437 mSDtfsCounter, 992 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:48,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 1249 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:42:48,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62230 states. [2024-11-11 21:42:49,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62230 to 62218. [2024-11-11 21:42:49,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62218 states, 62217 states have (on average 1.2970892199881061) internal successors, (80701), 62217 states have internal predecessors, (80701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:49,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62218 states to 62218 states and 80701 transitions. [2024-11-11 21:42:49,741 INFO L78 Accepts]: Start accepts. Automaton has 62218 states and 80701 transitions. Word has length 132 [2024-11-11 21:42:49,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:49,746 INFO L471 AbstractCegarLoop]: Abstraction has 62218 states and 80701 transitions. [2024-11-11 21:42:49,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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) [2024-11-11 21:42:49,746 INFO L276 IsEmpty]: Start isEmpty. Operand 62218 states and 80701 transitions. [2024-11-11 21:42:49,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-11 21:42:49,750 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:49,750 INFO L218 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] [2024-11-11 21:42:49,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-11 21:42:49,750 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:49,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:49,751 INFO L85 PathProgramCache]: Analyzing trace with hash 14677141, now seen corresponding path program 1 times [2024-11-11 21:42:49,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:49,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284717004] [2024-11-11 21:42:49,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:49,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:49,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:49,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:49,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284717004] [2024-11-11 21:42:49,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284717004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:49,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:49,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:42:49,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624554395] [2024-11-11 21:42:49,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:49,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:42:49,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:49,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:42:49,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:49,950 INFO L87 Difference]: Start difference. First operand 62218 states and 80701 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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) [2024-11-11 21:42:50,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:50,270 INFO L93 Difference]: Finished difference Result 131998 states and 171502 transitions. [2024-11-11 21:42:50,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:42:50,271 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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 [2024-11-11 21:42:50,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:50,359 INFO L225 Difference]: With dead ends: 131998 [2024-11-11 21:42:50,359 INFO L226 Difference]: Without dead ends: 75762 [2024-11-11 21:42:50,410 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:42:50,410 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 1084 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:50,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 1200 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:42:50,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75762 states. [2024-11-11 21:42:51,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75762 to 75480. [2024-11-11 21:42:51,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75480 states, 75479 states have (on average 1.2978179361146809) internal successors, (97958), 75479 states have internal predecessors, (97958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:51,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75480 states to 75480 states and 97958 transitions. [2024-11-11 21:42:51,628 INFO L78 Accepts]: Start accepts. Automaton has 75480 states and 97958 transitions. Word has length 132 [2024-11-11 21:42:51,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:51,629 INFO L471 AbstractCegarLoop]: Abstraction has 75480 states and 97958 transitions. [2024-11-11 21:42:51,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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) [2024-11-11 21:42:51,629 INFO L276 IsEmpty]: Start isEmpty. Operand 75480 states and 97958 transitions. [2024-11-11 21:42:51,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-11 21:42:51,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:51,632 INFO L218 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] [2024-11-11 21:42:51,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-11 21:42:51,632 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:51,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:51,633 INFO L85 PathProgramCache]: Analyzing trace with hash -231927918, now seen corresponding path program 1 times [2024-11-11 21:42:51,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:51,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337399299] [2024-11-11 21:42:51,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:51,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:51,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:51,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:51,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337399299] [2024-11-11 21:42:51,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337399299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:51,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:51,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:42:51,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370631604] [2024-11-11 21:42:51,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:51,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:42:51,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:51,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:42:51,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:51,839 INFO L87 Difference]: Start difference. First operand 75480 states and 97958 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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) [2024-11-11 21:42:52,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:52,476 INFO L93 Difference]: Finished difference Result 150066 states and 195055 transitions. [2024-11-11 21:42:52,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:42:52,477 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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 [2024-11-11 21:42:52,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:52,588 INFO L225 Difference]: With dead ends: 150066 [2024-11-11 21:42:52,589 INFO L226 Difference]: Without dead ends: 80556 [2024-11-11 21:42:52,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:42:52,642 INFO L435 NwaCegarLoop]: 466 mSDtfsCounter, 994 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:52,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 1250 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:42:52,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80556 states. [2024-11-11 21:42:54,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80556 to 77260. [2024-11-11 21:42:54,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77260 states, 77259 states have (on average 1.2978682095289868) internal successors, (100272), 77259 states have internal predecessors, (100272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:54,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77260 states to 77260 states and 100272 transitions. [2024-11-11 21:42:54,325 INFO L78 Accepts]: Start accepts. Automaton has 77260 states and 100272 transitions. Word has length 132 [2024-11-11 21:42:54,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:54,326 INFO L471 AbstractCegarLoop]: Abstraction has 77260 states and 100272 transitions. [2024-11-11 21:42:54,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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) [2024-11-11 21:42:54,327 INFO L276 IsEmpty]: Start isEmpty. Operand 77260 states and 100272 transitions. [2024-11-11 21:42:54,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-11 21:42:54,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:54,330 INFO L218 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] [2024-11-11 21:42:54,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-11 21:42:54,330 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:54,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:54,331 INFO L85 PathProgramCache]: Analyzing trace with hash -2033031115, now seen corresponding path program 1 times [2024-11-11 21:42:54,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:54,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338409049] [2024-11-11 21:42:54,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:54,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:54,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:54,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:54,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338409049] [2024-11-11 21:42:54,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338409049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:54,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:54,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 21:42:54,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453813054] [2024-11-11 21:42:54,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:54,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:42:54,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:54,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:42:54,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:42:54,539 INFO L87 Difference]: Start difference. First operand 77260 states and 100272 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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) [2024-11-11 21:42:55,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:55,571 INFO L93 Difference]: Finished difference Result 155578 states and 202169 transitions. [2024-11-11 21:42:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 21:42:55,572 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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 [2024-11-11 21:42:55,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:55,691 INFO L225 Difference]: With dead ends: 155578 [2024-11-11 21:42:55,692 INFO L226 Difference]: Without dead ends: 84258 [2024-11-11 21:42:55,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:42:55,720 INFO L435 NwaCegarLoop]: 449 mSDtfsCounter, 1007 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:55,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 1232 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:42:55,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84258 states. [2024-11-11 21:42:56,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84258 to 84246. [2024-11-11 21:42:56,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84246 states, 84245 states have (on average 1.2982966348151226) internal successors, (109375), 84245 states have internal predecessors, (109375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:57,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84246 states to 84246 states and 109375 transitions. [2024-11-11 21:42:57,101 INFO L78 Accepts]: Start accepts. Automaton has 84246 states and 109375 transitions. Word has length 132 [2024-11-11 21:42:57,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:42:57,101 INFO L471 AbstractCegarLoop]: Abstraction has 84246 states and 109375 transitions. [2024-11-11 21:42:57,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 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) [2024-11-11 21:42:57,105 INFO L276 IsEmpty]: Start isEmpty. Operand 84246 states and 109375 transitions. [2024-11-11 21:42:57,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-11 21:42:57,111 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:42:57,111 INFO L218 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, 1] [2024-11-11 21:42:57,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-11 21:42:57,112 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:42:57,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:42:57,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1061902035, now seen corresponding path program 1 times [2024-11-11 21:42:57,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:42:57,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658805477] [2024-11-11 21:42:57,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:42:57,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:42:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:42:57,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:42:57,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:42:57,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658805477] [2024-11-11 21:42:57,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658805477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:42:57,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:42:57,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:42:57,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568203930] [2024-11-11 21:42:57,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:42:57,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 21:42:57,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:42:57,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 21:42:57,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 21:42:57,440 INFO L87 Difference]: Start difference. First operand 84246 states and 109375 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:42:57,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:42:57,610 INFO L93 Difference]: Finished difference Result 86224 states and 112340 transitions. [2024-11-11 21:42:57,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 21:42:57,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2024-11-11 21:42:57,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:42:57,731 INFO L225 Difference]: With dead ends: 86224 [2024-11-11 21:42:57,731 INFO L226 Difference]: Without dead ends: 86222 [2024-11-11 21:42:57,760 INFO L434 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 [2024-11-11 21:42:57,760 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:42:57,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1063 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:42:57,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86222 states.