./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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.6.1.ufo.UNBOUNDED.pals.c.v+nlh-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 30f0768bbff34913c5dfb0ad37a2819c04e85c489714efe7283dacc3cb1675b9 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 16:04:33,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:04:33,419 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:04:33,424 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:04:33,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:04:33,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:04:33,447 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:04:33,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:04:33,448 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:04:33,449 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:04:33,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:04:33,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:04:33,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:04:33,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:04:33,452 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:04:33,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:04:33,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:04:33,452 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:04:33,453 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:04:33,453 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:04:33,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:04:33,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:04:33,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:04:33,456 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:04:33,456 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:04:33,457 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:04:33,457 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:04:33,457 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:04:33,457 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:04:33,457 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:04:33,457 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:04:33,457 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:04:33,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:04:33,458 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:04:33,458 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:04:33,458 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:04:33,458 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:04:33,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:04:33,459 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:04:33,459 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:04:33,460 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:04:33,461 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:04:33,461 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30f0768bbff34913c5dfb0ad37a2819c04e85c489714efe7283dacc3cb1675b9 [2024-11-08 16:04:33,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:04:33,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:04:33,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:04:33,680 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:04:33,681 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:04:33,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 16:04:34,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:04:35,054 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:04:35,055 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 16:04:35,068 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c34112739/1461264f54774610aad5e503042585c5/FLAGd9367ee44 [2024-11-08 16:04:35,423 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c34112739/1461264f54774610aad5e503042585c5 [2024-11-08 16:04:35,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:04:35,426 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:04:35,431 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:04:35,432 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:04:35,435 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:04:35,436 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:04:35" (1/1) ... [2024-11-08 16:04:35,437 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44bce5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:35, skipping insertion in model container [2024-11-08 16:04:35,437 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:04:35" (1/1) ... [2024-11-08 16:04:35,497 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:04:35,696 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.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9094,9107] [2024-11-08 16:04:35,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:04:35,740 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:04:35,781 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.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9094,9107] [2024-11-08 16:04:35,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:04:35,827 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:04:35,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:35 WrapperNode [2024-11-08 16:04:35,828 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:04:35,830 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:04:35,830 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:04:35,830 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:04:35,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:35" (1/1) ... [2024-11-08 16:04:35,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:35" (1/1) ... [2024-11-08 16:04:35,878 INFO L138 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 796 [2024-11-08 16:04:35,881 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:04:35,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:04:35,881 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:04:35,881 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:04:35,890 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:35" (1/1) ... [2024-11-08 16:04:35,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:35" (1/1) ... [2024-11-08 16:04:35,893 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:35" (1/1) ... [2024-11-08 16:04:35,906 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]. [2024-11-08 16:04:35,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:35" (1/1) ... [2024-11-08 16:04:35,907 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:35" (1/1) ... [2024-11-08 16:04:35,922 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:35" (1/1) ... [2024-11-08 16:04:35,929 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:35" (1/1) ... [2024-11-08 16:04:35,931 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:35" (1/1) ... [2024-11-08 16:04:35,933 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:35" (1/1) ... [2024-11-08 16:04:35,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:04:35,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:04:35,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:04:35,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:04:35,946 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:35" (1/1) ... [2024-11-08 16:04:35,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:04:35,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 16:04:35,974 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) [2024-11-08 16:04:35,979 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 [2024-11-08 16:04:36,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:04:36,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:04:36,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:04:36,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:04:36,117 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:04:36,120 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:04:36,639 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-08 16:04:36,640 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:04:36,657 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:04:36,658 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:04:36,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:04:36 BoogieIcfgContainer [2024-11-08 16:04:36,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:04:36,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:04:36,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:04:36,665 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:04:36,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:04:35" (1/3) ... [2024-11-08 16:04:36,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d2fecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:04:36, skipping insertion in model container [2024-11-08 16:04:36,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:35" (2/3) ... [2024-11-08 16:04:36,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d2fecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:04:36, skipping insertion in model container [2024-11-08 16:04:36,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:04:36" (3/3) ... [2024-11-08 16:04:36,667 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-08 16:04:36,679 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:04:36,679 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:04:36,724 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:04:36,729 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;@63cb786a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:04:36,729 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:04:36,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 175 states have (on average 1.76) internal successors, (308), 176 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:36,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 16:04:36,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:36,743 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:36,743 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:36,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:36,748 INFO L85 PathProgramCache]: Analyzing trace with hash -822713823, now seen corresponding path program 1 times [2024-11-08 16:04:36,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:36,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424547300] [2024-11-08 16:04:36,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:36,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:37,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:37,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:37,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424547300] [2024-11-08 16:04:37,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424547300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:37,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:37,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:04:37,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701084473] [2024-11-08 16:04:37,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:37,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:04:37,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:37,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:04:37,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:04:37,421 INFO L87 Difference]: Start difference. First operand has 177 states, 175 states have (on average 1.76) internal successors, (308), 176 states have internal predecessors, (308), 0 states have call successors, (0), 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 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:37,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:37,824 INFO L93 Difference]: Finished difference Result 1131 states and 1831 transitions. [2024-11-08 16:04:37,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 16:04:37,826 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-08 16:04:37,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:37,844 INFO L225 Difference]: With dead ends: 1131 [2024-11-08 16:04:37,844 INFO L226 Difference]: Without dead ends: 1036 [2024-11-08 16:04:37,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:04:37,851 INFO L432 NwaCegarLoop]: 615 mSDtfsCounter, 2265 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2265 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:37,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2265 Valid, 3100 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:04:37,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2024-11-08 16:04:37,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 269. [2024-11-08 16:04:37,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 268 states have (on average 1.458955223880597) internal successors, (391), 268 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:37,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 391 transitions. [2024-11-08 16:04:37,912 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 391 transitions. Word has length 90 [2024-11-08 16:04:37,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:37,913 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 391 transitions. [2024-11-08 16:04:37,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:37,914 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 391 transitions. [2024-11-08 16:04:37,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:04:37,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:37,916 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:37,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:04:37,916 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:37,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:37,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1483332975, now seen corresponding path program 1 times [2024-11-08 16:04:37,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:37,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052562019] [2024-11-08 16:04:37,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:37,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:38,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:38,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:38,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052562019] [2024-11-08 16:04:38,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052562019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:38,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:38,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:04:38,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772490187] [2024-11-08 16:04:38,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:38,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:04:38,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:38,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:04:38,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:04:38,181 INFO L87 Difference]: Start difference. First operand 269 states and 391 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:38,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:38,379 INFO L93 Difference]: Finished difference Result 1235 states and 1925 transitions. [2024-11-08 16:04:38,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:04:38,380 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-08 16:04:38,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:38,385 INFO L225 Difference]: With dead ends: 1235 [2024-11-08 16:04:38,385 INFO L226 Difference]: Without dead ends: 1095 [2024-11-08 16:04:38,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:04:38,388 INFO L432 NwaCegarLoop]: 576 mSDtfsCounter, 1604 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:38,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 1854 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:38,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2024-11-08 16:04:38,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 428. [2024-11-08 16:04:38,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 427 states have (on average 1.5105386416861826) internal successors, (645), 427 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:38,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 645 transitions. [2024-11-08 16:04:38,413 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 645 transitions. Word has length 92 [2024-11-08 16:04:38,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:38,414 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 645 transitions. [2024-11-08 16:04:38,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:38,414 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 645 transitions. [2024-11-08 16:04:38,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:04:38,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:38,418 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:38,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:04:38,419 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:38,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:38,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1617802447, now seen corresponding path program 1 times [2024-11-08 16:04:38,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:38,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77984016] [2024-11-08 16:04:38,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:38,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:38,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:38,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:38,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77984016] [2024-11-08 16:04:38,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77984016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:38,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:38,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:04:38,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228263034] [2024-11-08 16:04:38,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:38,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:04:38,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:38,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:04:38,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:04:38,583 INFO L87 Difference]: Start difference. First operand 428 states and 645 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:38,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:38,757 INFO L93 Difference]: Finished difference Result 1389 states and 2171 transitions. [2024-11-08 16:04:38,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:04:38,757 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-08 16:04:38,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:38,762 INFO L225 Difference]: With dead ends: 1389 [2024-11-08 16:04:38,762 INFO L226 Difference]: Without dead ends: 1249 [2024-11-08 16:04:38,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:04:38,763 INFO L432 NwaCegarLoop]: 450 mSDtfsCounter, 1907 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1907 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:38,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1907 Valid, 1591 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:38,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2024-11-08 16:04:38,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 641. [2024-11-08 16:04:38,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 640 states have (on average 1.5390625) internal successors, (985), 640 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:38,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 985 transitions. [2024-11-08 16:04:38,784 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 985 transitions. Word has length 92 [2024-11-08 16:04:38,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:38,785 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 985 transitions. [2024-11-08 16:04:38,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:38,787 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 985 transitions. [2024-11-08 16:04:38,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:04:38,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:38,791 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:38,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:04:38,791 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:38,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:38,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1906062023, now seen corresponding path program 1 times [2024-11-08 16:04:38,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:38,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901561140] [2024-11-08 16:04:38,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:38,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:38,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:38,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:38,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901561140] [2024-11-08 16:04:38,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901561140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:38,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:38,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:04:38,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720720080] [2024-11-08 16:04:38,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:38,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:04:38,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:38,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:04:38,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:04:38,983 INFO L87 Difference]: Start difference. First operand 641 states and 985 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:39,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:39,132 INFO L93 Difference]: Finished difference Result 1528 states and 2393 transitions. [2024-11-08 16:04:39,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:04:39,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-08 16:04:39,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:39,136 INFO L225 Difference]: With dead ends: 1528 [2024-11-08 16:04:39,137 INFO L226 Difference]: Without dead ends: 1388 [2024-11-08 16:04:39,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:04:39,140 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 2020 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2020 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:39,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2020 Valid, 1577 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:39,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2024-11-08 16:04:39,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 780. [2024-11-08 16:04:39,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 779 states have (on average 1.5494223363286264) internal successors, (1207), 779 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:39,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1207 transitions. [2024-11-08 16:04:39,156 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1207 transitions. Word has length 92 [2024-11-08 16:04:39,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:39,157 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 1207 transitions. [2024-11-08 16:04:39,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:39,157 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1207 transitions. [2024-11-08 16:04:39,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:04:39,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:39,159 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:39,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:04:39,160 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:39,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:39,160 INFO L85 PathProgramCache]: Analyzing trace with hash 614894983, now seen corresponding path program 1 times [2024-11-08 16:04:39,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:39,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758051225] [2024-11-08 16:04:39,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:39,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:39,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:39,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:39,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758051225] [2024-11-08 16:04:39,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758051225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:39,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:39,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:04:39,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450741783] [2024-11-08 16:04:39,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:39,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:04:39,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:39,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:04:39,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:39,227 INFO L87 Difference]: Start difference. First operand 780 states and 1207 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:39,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:39,262 INFO L93 Difference]: Finished difference Result 1968 states and 3097 transitions. [2024-11-08 16:04:39,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:04:39,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-08 16:04:39,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:39,265 INFO L225 Difference]: With dead ends: 1968 [2024-11-08 16:04:39,265 INFO L226 Difference]: Without dead ends: 1345 [2024-11-08 16:04:39,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:39,267 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 99 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:39,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 559 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:39,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2024-11-08 16:04:39,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1325. [2024-11-08 16:04:39,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1324 states have (on average 1.5521148036253776) internal successors, (2055), 1324 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:39,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 2055 transitions. [2024-11-08 16:04:39,287 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 2055 transitions. Word has length 92 [2024-11-08 16:04:39,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:39,287 INFO L471 AbstractCegarLoop]: Abstraction has 1325 states and 2055 transitions. [2024-11-08 16:04:39,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:39,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 2055 transitions. [2024-11-08 16:04:39,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:04:39,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:39,288 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:39,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:04:39,289 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:39,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:39,290 INFO L85 PathProgramCache]: Analyzing trace with hash 858972646, now seen corresponding path program 1 times [2024-11-08 16:04:39,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:39,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741513367] [2024-11-08 16:04:39,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:39,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:39,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:39,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:39,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741513367] [2024-11-08 16:04:39,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741513367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:39,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:39,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:04:39,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79166185] [2024-11-08 16:04:39,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:39,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:04:39,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:39,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:04:39,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:39,377 INFO L87 Difference]: Start difference. First operand 1325 states and 2055 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:39,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:39,419 INFO L93 Difference]: Finished difference Result 2495 states and 3900 transitions. [2024-11-08 16:04:39,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:04:39,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-08 16:04:39,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:39,425 INFO L225 Difference]: With dead ends: 2495 [2024-11-08 16:04:39,426 INFO L226 Difference]: Without dead ends: 1327 [2024-11-08 16:04:39,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:39,428 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 125 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:39,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 541 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:39,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2024-11-08 16:04:39,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1325. [2024-11-08 16:04:39,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1324 states have (on average 1.5483383685800605) internal successors, (2050), 1324 states have internal predecessors, (2050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:39,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 2050 transitions. [2024-11-08 16:04:39,448 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 2050 transitions. Word has length 92 [2024-11-08 16:04:39,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:39,448 INFO L471 AbstractCegarLoop]: Abstraction has 1325 states and 2050 transitions. [2024-11-08 16:04:39,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:39,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 2050 transitions. [2024-11-08 16:04:39,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:04:39,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:39,449 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:39,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:04:39,449 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:39,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:39,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1799043301, now seen corresponding path program 1 times [2024-11-08 16:04:39,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:39,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241580710] [2024-11-08 16:04:39,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:39,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:39,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:39,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:39,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241580710] [2024-11-08 16:04:39,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241580710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:39,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:39,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:04:39,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571228508] [2024-11-08 16:04:39,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:39,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:04:39,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:39,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:04:39,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:04:39,630 INFO L87 Difference]: Start difference. First operand 1325 states and 2050 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:39,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:39,832 INFO L93 Difference]: Finished difference Result 2943 states and 4594 transitions. [2024-11-08 16:04:39,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:04:39,832 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-08 16:04:39,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:39,839 INFO L225 Difference]: With dead ends: 2943 [2024-11-08 16:04:39,839 INFO L226 Difference]: Without dead ends: 2682 [2024-11-08 16:04:39,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:04:39,842 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 1553 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 2014 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:39,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1553 Valid, 2014 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:39,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2024-11-08 16:04:39,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 1595. [2024-11-08 16:04:39,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1595 states, 1594 states have (on average 1.552697616060226) internal successors, (2475), 1594 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:39,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 2475 transitions. [2024-11-08 16:04:39,878 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 2475 transitions. Word has length 92 [2024-11-08 16:04:39,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:39,879 INFO L471 AbstractCegarLoop]: Abstraction has 1595 states and 2475 transitions. [2024-11-08 16:04:39,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:39,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 2475 transitions. [2024-11-08 16:04:39,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:04:39,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:39,881 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:39,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:04:39,881 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:39,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:39,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1982868957, now seen corresponding path program 1 times [2024-11-08 16:04:39,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:39,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658434504] [2024-11-08 16:04:39,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:39,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:40,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:40,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:40,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658434504] [2024-11-08 16:04:40,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658434504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:40,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:40,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:04:40,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750909129] [2024-11-08 16:04:40,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:40,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:04:40,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:40,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:04:40,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:04:40,032 INFO L87 Difference]: Start difference. First operand 1595 states and 2475 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:40,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:40,198 INFO L93 Difference]: Finished difference Result 3213 states and 5019 transitions. [2024-11-08 16:04:40,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:04:40,199 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-08 16:04:40,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:40,205 INFO L225 Difference]: With dead ends: 3213 [2024-11-08 16:04:40,205 INFO L226 Difference]: Without dead ends: 2952 [2024-11-08 16:04:40,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:04:40,207 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 1751 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1751 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:40,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1751 Valid, 2283 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:40,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2024-11-08 16:04:40,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 1870. [2024-11-08 16:04:40,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1870 states, 1869 states have (on average 1.555912252541466) internal successors, (2908), 1869 states have internal predecessors, (2908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:40,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2908 transitions. [2024-11-08 16:04:40,236 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2908 transitions. Word has length 92 [2024-11-08 16:04:40,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:40,236 INFO L471 AbstractCegarLoop]: Abstraction has 1870 states and 2908 transitions. [2024-11-08 16:04:40,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:40,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2908 transitions. [2024-11-08 16:04:40,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:04:40,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:40,237 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:40,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:04:40,238 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:40,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:40,238 INFO L85 PathProgramCache]: Analyzing trace with hash -820597111, now seen corresponding path program 1 times [2024-11-08 16:04:40,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:40,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788250430] [2024-11-08 16:04:40,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:40,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:40,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:40,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:40,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788250430] [2024-11-08 16:04:40,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788250430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:40,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:40,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:04:40,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042480028] [2024-11-08 16:04:40,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:40,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:04:40,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:40,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:04:40,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:04:40,384 INFO L87 Difference]: Start difference. First operand 1870 states and 2908 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:40,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:40,539 INFO L93 Difference]: Finished difference Result 3493 states and 5460 transitions. [2024-11-08 16:04:40,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:04:40,539 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-08 16:04:40,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:40,547 INFO L225 Difference]: With dead ends: 3493 [2024-11-08 16:04:40,547 INFO L226 Difference]: Without dead ends: 3232 [2024-11-08 16:04:40,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:04:40,550 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 2003 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2003 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:40,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2003 Valid, 1924 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:40,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3232 states. [2024-11-08 16:04:40,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3232 to 2150. [2024-11-08 16:04:40,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2149 states have (on average 1.5583992554676593) internal successors, (3349), 2149 states have internal predecessors, (3349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:40,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 3349 transitions. [2024-11-08 16:04:40,608 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 3349 transitions. Word has length 92 [2024-11-08 16:04:40,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:40,608 INFO L471 AbstractCegarLoop]: Abstraction has 2150 states and 3349 transitions. [2024-11-08 16:04:40,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:40,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 3349 transitions. [2024-11-08 16:04:40,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 16:04:40,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:40,609 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:40,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:04:40,609 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:40,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:40,610 INFO L85 PathProgramCache]: Analyzing trace with hash 2115523499, now seen corresponding path program 1 times [2024-11-08 16:04:40,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:40,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172473766] [2024-11-08 16:04:40,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:40,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:40,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:40,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:40,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172473766] [2024-11-08 16:04:40,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172473766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:40,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:40,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:04:40,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062838017] [2024-11-08 16:04:40,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:40,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:04:40,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:40,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:04:40,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:40,717 INFO L87 Difference]: Start difference. First operand 2150 states and 3349 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:40,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:40,838 INFO L93 Difference]: Finished difference Result 4250 states and 6646 transitions. [2024-11-08 16:04:40,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:04:40,838 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-08 16:04:40,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:40,843 INFO L225 Difference]: With dead ends: 4250 [2024-11-08 16:04:40,843 INFO L226 Difference]: Without dead ends: 2150 [2024-11-08 16:04:40,846 INFO L431 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 [2024-11-08 16:04:40,846 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 649 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:40,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 140 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:40,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2024-11-08 16:04:40,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2150. [2024-11-08 16:04:40,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2149 states have (on average 1.5439739413680782) internal successors, (3318), 2149 states have internal predecessors, (3318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:40,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 3318 transitions. [2024-11-08 16:04:40,879 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 3318 transitions. Word has length 93 [2024-11-08 16:04:40,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:40,879 INFO L471 AbstractCegarLoop]: Abstraction has 2150 states and 3318 transitions. [2024-11-08 16:04:40,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:40,879 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 3318 transitions. [2024-11-08 16:04:40,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 16:04:40,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:40,880 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:40,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:04:40,881 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:40,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:40,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1622736142, now seen corresponding path program 1 times [2024-11-08 16:04:40,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:40,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645887920] [2024-11-08 16:04:40,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:40,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:40,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:40,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:40,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645887920] [2024-11-08 16:04:40,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645887920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:40,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:40,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:04:40,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993057246] [2024-11-08 16:04:40,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:40,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:04:40,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:40,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:04:40,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:40,974 INFO L87 Difference]: Start difference. First operand 2150 states and 3318 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:41,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:41,164 INFO L93 Difference]: Finished difference Result 6296 states and 9773 transitions. [2024-11-08 16:04:41,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:04:41,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-08 16:04:41,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:41,174 INFO L225 Difference]: With dead ends: 6296 [2024-11-08 16:04:41,174 INFO L226 Difference]: Without dead ends: 4192 [2024-11-08 16:04:41,176 INFO L431 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 [2024-11-08 16:04:41,176 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 958 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:41,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 213 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:04:41,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2024-11-08 16:04:41,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 4190. [2024-11-08 16:04:41,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4190 states, 4189 states have (on average 1.5445213654810217) internal successors, (6470), 4189 states have internal predecessors, (6470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:41,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 6470 transitions. [2024-11-08 16:04:41,223 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 6470 transitions. Word has length 94 [2024-11-08 16:04:41,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:41,224 INFO L471 AbstractCegarLoop]: Abstraction has 4190 states and 6470 transitions. [2024-11-08 16:04:41,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:41,224 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 6470 transitions. [2024-11-08 16:04:41,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 16:04:41,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:41,225 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:41,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:04:41,225 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:41,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:41,226 INFO L85 PathProgramCache]: Analyzing trace with hash -514732393, now seen corresponding path program 1 times [2024-11-08 16:04:41,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:41,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144396297] [2024-11-08 16:04:41,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:41,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:41,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:41,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:41,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144396297] [2024-11-08 16:04:41,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144396297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:41,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:41,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:04:41,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012089758] [2024-11-08 16:04:41,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:41,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:04:41,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:41,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:04:41,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:41,314 INFO L87 Difference]: Start difference. First operand 4190 states and 6470 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:41,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:41,431 INFO L93 Difference]: Finished difference Result 8318 states and 12875 transitions. [2024-11-08 16:04:41,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:04:41,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-08 16:04:41,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:41,442 INFO L225 Difference]: With dead ends: 8318 [2024-11-08 16:04:41,442 INFO L226 Difference]: Without dead ends: 4190 [2024-11-08 16:04:41,446 INFO L431 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 [2024-11-08 16:04:41,446 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 605 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:41,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 164 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:41,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4190 states. [2024-11-08 16:04:41,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4190 to 4190. [2024-11-08 16:04:41,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4190 states, 4189 states have (on average 1.5299594175220816) internal successors, (6409), 4189 states have internal predecessors, (6409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:41,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 6409 transitions. [2024-11-08 16:04:41,518 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 6409 transitions. Word has length 95 [2024-11-08 16:04:41,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:41,519 INFO L471 AbstractCegarLoop]: Abstraction has 4190 states and 6409 transitions. [2024-11-08 16:04:41,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:41,519 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 6409 transitions. [2024-11-08 16:04:41,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 16:04:41,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:41,520 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:41,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:04:41,521 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:41,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:41,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1777645674, now seen corresponding path program 1 times [2024-11-08 16:04:41,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:41,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594019866] [2024-11-08 16:04:41,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:41,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:41,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:41,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:41,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594019866] [2024-11-08 16:04:41,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594019866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:41,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:41,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:04:41,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703328686] [2024-11-08 16:04:41,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:41,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:04:41,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:41,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:04:41,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:41,628 INFO L87 Difference]: Start difference. First operand 4190 states and 6409 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:41,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:41,749 INFO L93 Difference]: Finished difference Result 8322 states and 12758 transitions. [2024-11-08 16:04:41,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:04:41,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-11-08 16:04:41,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:41,757 INFO L225 Difference]: With dead ends: 8322 [2024-11-08 16:04:41,758 INFO L226 Difference]: Without dead ends: 4190 [2024-11-08 16:04:41,762 INFO L431 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 [2024-11-08 16:04:41,763 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 610 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:41,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 156 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:41,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4190 states. [2024-11-08 16:04:41,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4190 to 4190. [2024-11-08 16:04:41,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4190 states, 4189 states have (on average 1.5153974695631416) internal successors, (6348), 4189 states have internal predecessors, (6348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:41,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 6348 transitions. [2024-11-08 16:04:41,815 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 6348 transitions. Word has length 96 [2024-11-08 16:04:41,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:41,815 INFO L471 AbstractCegarLoop]: Abstraction has 4190 states and 6348 transitions. [2024-11-08 16:04:41,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:41,815 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 6348 transitions. [2024-11-08 16:04:41,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 16:04:41,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:41,819 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:41,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:04:41,819 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:41,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:41,819 INFO L85 PathProgramCache]: Analyzing trace with hash -341822485, now seen corresponding path program 1 times [2024-11-08 16:04:41,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:41,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219279445] [2024-11-08 16:04:41,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:41,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:41,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:41,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:41,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219279445] [2024-11-08 16:04:41,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219279445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:41,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:41,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:04:41,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746742479] [2024-11-08 16:04:41,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:41,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:04:41,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:41,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:04:41,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:41,907 INFO L87 Difference]: Start difference. First operand 4190 states and 6348 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:42,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:42,018 INFO L93 Difference]: Finished difference Result 8326 states and 12641 transitions. [2024-11-08 16:04:42,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:04:42,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2024-11-08 16:04:42,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:42,027 INFO L225 Difference]: With dead ends: 8326 [2024-11-08 16:04:42,027 INFO L226 Difference]: Without dead ends: 4190 [2024-11-08 16:04:42,031 INFO L431 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 [2024-11-08 16:04:42,031 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 615 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:42,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 148 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:42,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4190 states. [2024-11-08 16:04:42,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4190 to 4190. [2024-11-08 16:04:42,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4190 states, 4189 states have (on average 1.5008355216042015) internal successors, (6287), 4189 states have internal predecessors, (6287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:42,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 6287 transitions. [2024-11-08 16:04:42,090 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 6287 transitions. Word has length 97 [2024-11-08 16:04:42,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:42,090 INFO L471 AbstractCegarLoop]: Abstraction has 4190 states and 6287 transitions. [2024-11-08 16:04:42,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:42,090 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 6287 transitions. [2024-11-08 16:04:42,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 16:04:42,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:42,091 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:42,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 16:04:42,092 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:42,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:42,092 INFO L85 PathProgramCache]: Analyzing trace with hash 331898154, now seen corresponding path program 1 times [2024-11-08 16:04:42,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:42,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450863795] [2024-11-08 16:04:42,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:42,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:42,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:42,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:42,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450863795] [2024-11-08 16:04:42,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450863795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:42,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:42,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:04:42,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452975824] [2024-11-08 16:04:42,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:42,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:04:42,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:42,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:04:42,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:42,179 INFO L87 Difference]: Start difference. First operand 4190 states and 6287 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:42,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:42,290 INFO L93 Difference]: Finished difference Result 8314 states and 12507 transitions. [2024-11-08 16:04:42,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:04:42,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2024-11-08 16:04:42,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:42,300 INFO L225 Difference]: With dead ends: 8314 [2024-11-08 16:04:42,300 INFO L226 Difference]: Without dead ends: 4190 [2024-11-08 16:04:42,304 INFO L431 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 [2024-11-08 16:04:42,304 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 573 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:42,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 172 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:42,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4190 states. [2024-11-08 16:04:42,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4190 to 4190. [2024-11-08 16:04:42,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4190 states, 4189 states have (on average 1.4862735736452615) internal successors, (6226), 4189 states have internal predecessors, (6226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:42,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 6226 transitions. [2024-11-08 16:04:42,342 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 6226 transitions. Word has length 98 [2024-11-08 16:04:42,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:42,342 INFO L471 AbstractCegarLoop]: Abstraction has 4190 states and 6226 transitions. [2024-11-08 16:04:42,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:42,343 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 6226 transitions. [2024-11-08 16:04:42,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 16:04:42,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:42,344 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:42,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:04:42,344 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:42,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:42,344 INFO L85 PathProgramCache]: Analyzing trace with hash 19008367, now seen corresponding path program 1 times [2024-11-08 16:04:42,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:42,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15957311] [2024-11-08 16:04:42,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:42,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:42,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:42,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:42,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15957311] [2024-11-08 16:04:42,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15957311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:42,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:42,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 16:04:42,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907426586] [2024-11-08 16:04:42,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:42,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 16:04:42,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:42,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 16:04:42,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:04:42,809 INFO L87 Difference]: Start difference. First operand 4190 states and 6226 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:43,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:43,324 INFO L93 Difference]: Finished difference Result 12387 states and 18402 transitions. [2024-11-08 16:04:43,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:04:43,324 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2024-11-08 16:04:43,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:43,335 INFO L225 Difference]: With dead ends: 12387 [2024-11-08 16:04:43,335 INFO L226 Difference]: Without dead ends: 8356 [2024-11-08 16:04:43,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-08 16:04:43,340 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 1149 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:43,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 688 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:04:43,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8356 states. [2024-11-08 16:04:43,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8356 to 4190. [2024-11-08 16:04:43,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4190 states, 4189 states have (on average 1.4848412508952018) internal successors, (6220), 4189 states have internal predecessors, (6220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:43,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 6220 transitions. [2024-11-08 16:04:43,417 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 6220 transitions. Word has length 99 [2024-11-08 16:04:43,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:43,418 INFO L471 AbstractCegarLoop]: Abstraction has 4190 states and 6220 transitions. [2024-11-08 16:04:43,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:43,418 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 6220 transitions. [2024-11-08 16:04:43,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 16:04:43,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:43,419 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:43,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 16:04:43,419 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:43,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:43,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1323257447, now seen corresponding path program 1 times [2024-11-08 16:04:43,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:43,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183142] [2024-11-08 16:04:43,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:43,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:43,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:43,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:43,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183142] [2024-11-08 16:04:43,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:43,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:43,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:04:43,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666985392] [2024-11-08 16:04:43,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:43,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:04:43,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:43,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:04:43,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:04:43,683 INFO L87 Difference]: Start difference. First operand 4190 states and 6220 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:44,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:44,022 INFO L93 Difference]: Finished difference Result 12076 states and 17972 transitions. [2024-11-08 16:04:44,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:04:44,023 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-11-08 16:04:44,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:44,034 INFO L225 Difference]: With dead ends: 12076 [2024-11-08 16:04:44,035 INFO L226 Difference]: Without dead ends: 8091 [2024-11-08 16:04:44,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:04:44,039 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 1162 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:44,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 551 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:04:44,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8091 states. [2024-11-08 16:04:44,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8091 to 4190. [2024-11-08 16:04:44,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4190 states, 4189 states have (on average 1.4846025304368584) internal successors, (6219), 4189 states have internal predecessors, (6219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:44,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 6219 transitions. [2024-11-08 16:04:44,116 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 6219 transitions. Word has length 100 [2024-11-08 16:04:44,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:44,116 INFO L471 AbstractCegarLoop]: Abstraction has 4190 states and 6219 transitions. [2024-11-08 16:04:44,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:44,117 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 6219 transitions. [2024-11-08 16:04:44,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 16:04:44,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:44,118 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:44,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 16:04:44,118 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:44,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:44,119 INFO L85 PathProgramCache]: Analyzing trace with hash -845397759, now seen corresponding path program 1 times [2024-11-08 16:04:44,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:44,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154370126] [2024-11-08 16:04:44,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:44,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:44,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:44,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:44,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154370126] [2024-11-08 16:04:44,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154370126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:44,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:44,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:04:44,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738288556] [2024-11-08 16:04:44,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:44,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:04:44,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:44,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:04:44,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:04:44,398 INFO L87 Difference]: Start difference. First operand 4190 states and 6219 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:44,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:44,899 INFO L93 Difference]: Finished difference Result 8870 states and 13150 transitions. [2024-11-08 16:04:44,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:04:44,900 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-11-08 16:04:44,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:44,906 INFO L225 Difference]: With dead ends: 8870 [2024-11-08 16:04:44,907 INFO L226 Difference]: Without dead ends: 4824 [2024-11-08 16:04:44,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:04:44,914 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 667 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:44,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 991 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:04:44,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4824 states. [2024-11-08 16:04:44,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4824 to 4190. [2024-11-08 16:04:44,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4190 states, 4189 states have (on average 1.4838863690618287) internal successors, (6216), 4189 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:44,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 6216 transitions. [2024-11-08 16:04:44,961 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 6216 transitions. Word has length 100 [2024-11-08 16:04:44,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:44,961 INFO L471 AbstractCegarLoop]: Abstraction has 4190 states and 6216 transitions. [2024-11-08 16:04:44,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:44,961 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 6216 transitions. [2024-11-08 16:04:44,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 16:04:44,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:44,962 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:44,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 16:04:44,962 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:44,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:44,963 INFO L85 PathProgramCache]: Analyzing trace with hash -573539590, now seen corresponding path program 1 times [2024-11-08 16:04:44,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:44,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84729744] [2024-11-08 16:04:44,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:44,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:45,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:45,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:45,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84729744] [2024-11-08 16:04:45,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84729744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:45,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:45,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:04:45,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943216829] [2024-11-08 16:04:45,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:45,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:04:45,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:45,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:04:45,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:04:45,203 INFO L87 Difference]: Start difference. First operand 4190 states and 6216 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:45,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:45,687 INFO L93 Difference]: Finished difference Result 12342 states and 18320 transitions. [2024-11-08 16:04:45,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:04:45,687 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-08 16:04:45,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:45,699 INFO L225 Difference]: With dead ends: 12342 [2024-11-08 16:04:45,699 INFO L226 Difference]: Without dead ends: 8341 [2024-11-08 16:04:45,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:04:45,704 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 686 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:45,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 953 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:04:45,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8341 states. [2024-11-08 16:04:45,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8341 to 4190. [2024-11-08 16:04:45,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4190 states, 4189 states have (on average 1.481737884936739) internal successors, (6207), 4189 states have internal predecessors, (6207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:45,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 6207 transitions. [2024-11-08 16:04:45,761 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 6207 transitions. Word has length 101 [2024-11-08 16:04:45,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:45,761 INFO L471 AbstractCegarLoop]: Abstraction has 4190 states and 6207 transitions. [2024-11-08 16:04:45,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:45,761 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 6207 transitions. [2024-11-08 16:04:45,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 16:04:45,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:45,762 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:45,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 16:04:45,762 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:45,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:45,763 INFO L85 PathProgramCache]: Analyzing trace with hash -427226295, now seen corresponding path program 1 times [2024-11-08 16:04:45,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:45,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909258632] [2024-11-08 16:04:45,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:45,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:45,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:45,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:45,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909258632] [2024-11-08 16:04:45,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909258632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:45,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:45,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:04:45,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750950874] [2024-11-08 16:04:45,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:45,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:04:45,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:45,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:04:45,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:04:45,992 INFO L87 Difference]: Start difference. First operand 4190 states and 6207 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:46,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:46,361 INFO L93 Difference]: Finished difference Result 12167 states and 18031 transitions. [2024-11-08 16:04:46,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:04:46,361 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-11-08 16:04:46,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:46,372 INFO L225 Difference]: With dead ends: 12167 [2024-11-08 16:04:46,373 INFO L226 Difference]: Without dead ends: 8266 [2024-11-08 16:04:46,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:04:46,377 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 583 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:46,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 612 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:04:46,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8266 states. [2024-11-08 16:04:46,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8266 to 4190. [2024-11-08 16:04:46,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4190 states, 4189 states have (on average 1.4786345189782764) internal successors, (6194), 4189 states have internal predecessors, (6194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:46,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 6194 transitions. [2024-11-08 16:04:46,430 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 6194 transitions. Word has length 102 [2024-11-08 16:04:46,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:46,430 INFO L471 AbstractCegarLoop]: Abstraction has 4190 states and 6194 transitions. [2024-11-08 16:04:46,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:46,431 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 6194 transitions. [2024-11-08 16:04:46,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 16:04:46,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:46,432 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:46,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 16:04:46,432 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:46,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:46,432 INFO L85 PathProgramCache]: Analyzing trace with hash -916891525, now seen corresponding path program 1 times [2024-11-08 16:04:46,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:46,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001083204] [2024-11-08 16:04:46,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:46,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:46,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:46,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:46,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001083204] [2024-11-08 16:04:46,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001083204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:46,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:46,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:04:46,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453858616] [2024-11-08 16:04:46,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:46,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:04:46,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:46,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:04:46,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:04:46,719 INFO L87 Difference]: Start difference. First operand 4190 states and 6194 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:47,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:47,175 INFO L93 Difference]: Finished difference Result 12267 states and 18156 transitions. [2024-11-08 16:04:47,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:04:47,176 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2024-11-08 16:04:47,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:47,184 INFO L225 Difference]: With dead ends: 12267 [2024-11-08 16:04:47,185 INFO L226 Difference]: Without dead ends: 8311 [2024-11-08 16:04:47,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:04:47,190 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 990 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:47,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 814 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:04:47,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8311 states. [2024-11-08 16:04:47,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8311 to 4190. [2024-11-08 16:04:47,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4190 states, 4189 states have (on average 1.4760085939365004) internal successors, (6183), 4189 states have internal predecessors, (6183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:47,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 6183 transitions. [2024-11-08 16:04:47,242 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 6183 transitions. Word has length 103 [2024-11-08 16:04:47,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:47,242 INFO L471 AbstractCegarLoop]: Abstraction has 4190 states and 6183 transitions. [2024-11-08 16:04:47,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:47,243 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 6183 transitions. [2024-11-08 16:04:47,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 16:04:47,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:47,244 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:47,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 16:04:47,244 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:47,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:47,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1323186080, now seen corresponding path program 1 times [2024-11-08 16:04:47,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:47,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736806244] [2024-11-08 16:04:47,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:47,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:47,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:47,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:47,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736806244] [2024-11-08 16:04:47,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736806244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:47,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:47,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 16:04:47,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781878815] [2024-11-08 16:04:47,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:47,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:04:47,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:47,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:04:47,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:04:47,879 INFO L87 Difference]: Start difference. First operand 4190 states and 6183 transitions. Second operand has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:48,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:48,605 INFO L93 Difference]: Finished difference Result 10363 states and 15352 transitions. [2024-11-08 16:04:48,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 16:04:48,606 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2024-11-08 16:04:48,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:48,615 INFO L225 Difference]: With dead ends: 10363 [2024-11-08 16:04:48,616 INFO L226 Difference]: Without dead ends: 9246 [2024-11-08 16:04:48,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-08 16:04:48,620 INFO L432 NwaCegarLoop]: 576 mSDtfsCounter, 1021 mSDsluCounter, 4155 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 4731 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:48,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 4731 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:04:48,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9246 states. [2024-11-08 16:04:48,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9246 to 4138. [2024-11-08 16:04:48,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4138 states, 4137 states have (on average 1.47643219724438) internal successors, (6108), 4137 states have internal predecessors, (6108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:48,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4138 states to 4138 states and 6108 transitions. [2024-11-08 16:04:48,683 INFO L78 Accepts]: Start accepts. Automaton has 4138 states and 6108 transitions. Word has length 104 [2024-11-08 16:04:48,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:48,683 INFO L471 AbstractCegarLoop]: Abstraction has 4138 states and 6108 transitions. [2024-11-08 16:04:48,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:48,683 INFO L276 IsEmpty]: Start isEmpty. Operand 4138 states and 6108 transitions. [2024-11-08 16:04:48,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 16:04:48,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:48,684 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:48,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 16:04:48,684 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:48,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:48,685 INFO L85 PathProgramCache]: Analyzing trace with hash -977108255, now seen corresponding path program 1 times [2024-11-08 16:04:48,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:48,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916143062] [2024-11-08 16:04:48,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:48,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:50,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:50,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:50,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916143062] [2024-11-08 16:04:50,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916143062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:50,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:50,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2024-11-08 16:04:50,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952671494] [2024-11-08 16:04:50,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:50,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-08 16:04:50,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:50,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-08 16:04:50,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=1313, Unknown=0, NotChecked=0, Total=1406 [2024-11-08 16:04:50,753 INFO L87 Difference]: Start difference. First operand 4138 states and 6108 transitions. Second operand has 38 states, 38 states have (on average 2.736842105263158) internal successors, (104), 38 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:57,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:57,551 INFO L93 Difference]: Finished difference Result 8439 states and 12478 transitions. [2024-11-08 16:04:57,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-08 16:04:57,551 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.736842105263158) internal successors, (104), 38 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2024-11-08 16:04:57,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:57,558 INFO L225 Difference]: With dead ends: 8439 [2024-11-08 16:04:57,558 INFO L226 Difference]: Without dead ends: 7399 [2024-11-08 16:04:57,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=649, Invalid=4321, Unknown=0, NotChecked=0, Total=4970 [2024-11-08 16:04:57,561 INFO L432 NwaCegarLoop]: 722 mSDtfsCounter, 2129 mSDsluCounter, 14654 mSDsCounter, 0 mSdLazyCounter, 10486 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2129 SdHoareTripleChecker+Valid, 15376 SdHoareTripleChecker+Invalid, 10503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 10486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:57,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2129 Valid, 15376 Invalid, 10503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 10486 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-08 16:04:57,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7399 states. [2024-11-08 16:04:57,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7399 to 4167. [2024-11-08 16:04:57,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4167 states, 4166 states have (on average 1.4747959673547768) internal successors, (6144), 4166 states have internal predecessors, (6144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:57,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4167 states to 4167 states and 6144 transitions. [2024-11-08 16:04:57,612 INFO L78 Accepts]: Start accepts. Automaton has 4167 states and 6144 transitions. Word has length 104 [2024-11-08 16:04:57,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:57,612 INFO L471 AbstractCegarLoop]: Abstraction has 4167 states and 6144 transitions. [2024-11-08 16:04:57,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.736842105263158) internal successors, (104), 38 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:57,612 INFO L276 IsEmpty]: Start isEmpty. Operand 4167 states and 6144 transitions. [2024-11-08 16:04:57,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 16:04:57,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:57,613 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:57,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 16:04:57,613 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:57,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:57,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1621509664, now seen corresponding path program 1 times [2024-11-08 16:04:57,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:57,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284132204] [2024-11-08 16:04:57,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:57,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:58,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:58,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:58,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284132204] [2024-11-08 16:04:58,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284132204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:58,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:58,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 16:04:58,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853950867] [2024-11-08 16:04:58,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:58,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:04:58,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:58,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:04:58,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:04:58,105 INFO L87 Difference]: Start difference. First operand 4167 states and 6144 transitions. Second operand has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:58,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:58,688 INFO L93 Difference]: Finished difference Result 17095 states and 25382 transitions. [2024-11-08 16:04:58,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 16:04:58,688 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2024-11-08 16:04:58,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:58,699 INFO L225 Difference]: With dead ends: 17095 [2024-11-08 16:04:58,700 INFO L226 Difference]: Without dead ends: 16003 [2024-11-08 16:04:58,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-08 16:04:58,704 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 998 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 3141 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:58,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 3141 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:04:58,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16003 states. [2024-11-08 16:04:58,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16003 to 4129. [2024-11-08 16:04:58,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4129 states, 4128 states have (on average 1.474563953488372) internal successors, (6087), 4128 states have internal predecessors, (6087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:58,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4129 states to 4129 states and 6087 transitions. [2024-11-08 16:04:58,782 INFO L78 Accepts]: Start accepts. Automaton has 4129 states and 6087 transitions. Word has length 104 [2024-11-08 16:04:58,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:58,782 INFO L471 AbstractCegarLoop]: Abstraction has 4129 states and 6087 transitions. [2024-11-08 16:04:58,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.428571428571429) internal successors, (104), 14 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:58,782 INFO L276 IsEmpty]: Start isEmpty. Operand 4129 states and 6087 transitions. [2024-11-08 16:04:58,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 16:04:58,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:58,783 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:58,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 16:04:58,783 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:58,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:58,784 INFO L85 PathProgramCache]: Analyzing trace with hash 434032448, now seen corresponding path program 1 times [2024-11-08 16:04:58,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:58,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315447495] [2024-11-08 16:04:58,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:58,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:59,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:59,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315447495] [2024-11-08 16:04:59,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315447495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:59,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:59,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 16:04:59,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688902464] [2024-11-08 16:04:59,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:59,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 16:04:59,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:59,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 16:04:59,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:04:59,220 INFO L87 Difference]: Start difference. First operand 4129 states and 6087 transitions. Second operand has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:59,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:59,708 INFO L93 Difference]: Finished difference Result 9142 states and 13546 transitions. [2024-11-08 16:04:59,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:04:59,709 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2024-11-08 16:04:59,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:59,713 INFO L225 Difference]: With dead ends: 9142 [2024-11-08 16:04:59,713 INFO L226 Difference]: Without dead ends: 8050 [2024-11-08 16:04:59,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-08 16:04:59,715 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 807 mSDsluCounter, 2162 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 2469 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:59,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 2469 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:04:59,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8050 states. [2024-11-08 16:04:59,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8050 to 4082. [2024-11-08 16:04:59,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4082 states, 4081 states have (on average 1.4756187209017397) internal successors, (6022), 4081 states have internal predecessors, (6022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:59,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4082 states to 4082 states and 6022 transitions. [2024-11-08 16:04:59,753 INFO L78 Accepts]: Start accepts. Automaton has 4082 states and 6022 transitions. Word has length 104 [2024-11-08 16:04:59,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:59,753 INFO L471 AbstractCegarLoop]: Abstraction has 4082 states and 6022 transitions. [2024-11-08 16:04:59,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:59,753 INFO L276 IsEmpty]: Start isEmpty. Operand 4082 states and 6022 transitions. [2024-11-08 16:04:59,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 16:04:59,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:59,754 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:59,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 16:04:59,754 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:59,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:59,755 INFO L85 PathProgramCache]: Analyzing trace with hash 2130145662, now seen corresponding path program 1 times [2024-11-08 16:04:59,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:59,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716072073] [2024-11-08 16:04:59,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:59,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:00,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:00,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:00,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716072073] [2024-11-08 16:05:00,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716072073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:00,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:00,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-08 16:05:00,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024144143] [2024-11-08 16:05:00,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:00,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 16:05:00,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:00,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 16:05:00,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:05:00,414 INFO L87 Difference]: Start difference. First operand 4082 states and 6022 transitions. Second operand has 17 states, 17 states have (on average 6.117647058823529) internal successors, (104), 17 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:01,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:01,231 INFO L93 Difference]: Finished difference Result 6190 states and 9151 transitions. [2024-11-08 16:05:01,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 16:05:01,232 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.117647058823529) internal successors, (104), 17 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2024-11-08 16:05:01,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:01,235 INFO L225 Difference]: With dead ends: 6190 [2024-11-08 16:05:01,235 INFO L226 Difference]: Without dead ends: 5125 [2024-11-08 16:05:01,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2024-11-08 16:05:01,237 INFO L432 NwaCegarLoop]: 401 mSDtfsCounter, 1259 mSDsluCounter, 3322 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 3723 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:01,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 3723 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:05:01,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5125 states. [2024-11-08 16:05:01,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5125 to 4082. [2024-11-08 16:05:01,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4082 states, 4081 states have (on average 1.4753736829208528) internal successors, (6021), 4081 states have internal predecessors, (6021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:01,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4082 states to 4082 states and 6021 transitions. [2024-11-08 16:05:01,268 INFO L78 Accepts]: Start accepts. Automaton has 4082 states and 6021 transitions. Word has length 104 [2024-11-08 16:05:01,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:01,268 INFO L471 AbstractCegarLoop]: Abstraction has 4082 states and 6021 transitions. [2024-11-08 16:05:01,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.117647058823529) internal successors, (104), 17 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:01,269 INFO L276 IsEmpty]: Start isEmpty. Operand 4082 states and 6021 transitions. [2024-11-08 16:05:01,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 16:05:01,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:01,270 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:01,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 16:05:01,270 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:01,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:01,270 INFO L85 PathProgramCache]: Analyzing trace with hash -944544563, now seen corresponding path program 1 times [2024-11-08 16:05:01,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:01,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691085702] [2024-11-08 16:05:01,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:01,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:01,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:01,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:01,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691085702] [2024-11-08 16:05:01,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691085702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:01,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:01,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 16:05:01,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583027692] [2024-11-08 16:05:01,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:01,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:05:01,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:01,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:05:01,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:05:01,780 INFO L87 Difference]: Start difference. First operand 4082 states and 6021 transitions. Second operand has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:02,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:02,409 INFO L93 Difference]: Finished difference Result 16863 states and 25058 transitions. [2024-11-08 16:05:02,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 16:05:02,409 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2024-11-08 16:05:02,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:02,421 INFO L225 Difference]: With dead ends: 16863 [2024-11-08 16:05:02,421 INFO L226 Difference]: Without dead ends: 15801 [2024-11-08 16:05:02,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-08 16:05:02,426 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 968 mSDsluCounter, 3670 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 4179 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:02,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 4179 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:05:02,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15801 states. [2024-11-08 16:05:02,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15801 to 4046. [2024-11-08 16:05:02,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4046 states, 4045 states have (on average 1.476390605686032) internal successors, (5972), 4045 states have internal predecessors, (5972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:02,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4046 states to 4046 states and 5972 transitions. [2024-11-08 16:05:02,511 INFO L78 Accepts]: Start accepts. Automaton has 4046 states and 5972 transitions. Word has length 105 [2024-11-08 16:05:02,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:02,511 INFO L471 AbstractCegarLoop]: Abstraction has 4046 states and 5972 transitions. [2024-11-08 16:05:02,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.5) internal successors, (105), 14 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:02,512 INFO L276 IsEmpty]: Start isEmpty. Operand 4046 states and 5972 transitions. [2024-11-08 16:05:02,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 16:05:02,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:02,512 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:02,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 16:05:02,513 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:02,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:02,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1678371830, now seen corresponding path program 1 times [2024-11-08 16:05:02,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:02,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125969916] [2024-11-08 16:05:02,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:02,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:02,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:02,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:02,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125969916] [2024-11-08 16:05:02,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125969916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:02,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:02,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:05:02,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953972900] [2024-11-08 16:05:02,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:02,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:05:02,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:02,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:05:02,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:05:02,627 INFO L87 Difference]: Start difference. First operand 4046 states and 5972 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:02,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:02,668 INFO L93 Difference]: Finished difference Result 9715 states and 14430 transitions. [2024-11-08 16:05:02,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:05:02,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2024-11-08 16:05:02,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:02,672 INFO L225 Difference]: With dead ends: 9715 [2024-11-08 16:05:02,673 INFO L226 Difference]: Without dead ends: 5827 [2024-11-08 16:05:02,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:05:02,677 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 107 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:02,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 519 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:02,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5827 states. [2024-11-08 16:05:02,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5827 to 5797. [2024-11-08 16:05:02,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5797 states, 5796 states have (on average 1.4725672877846792) internal successors, (8535), 5796 states have internal predecessors, (8535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:02,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5797 states to 5797 states and 8535 transitions. [2024-11-08 16:05:02,725 INFO L78 Accepts]: Start accepts. Automaton has 5797 states and 8535 transitions. Word has length 105 [2024-11-08 16:05:02,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:02,725 INFO L471 AbstractCegarLoop]: Abstraction has 5797 states and 8535 transitions. [2024-11-08 16:05:02,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:02,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5797 states and 8535 transitions. [2024-11-08 16:05:02,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 16:05:02,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:02,726 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:02,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 16:05:02,726 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:02,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:02,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1357510990, now seen corresponding path program 1 times [2024-11-08 16:05:02,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:02,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200962565] [2024-11-08 16:05:02,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:02,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:02,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:02,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:02,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200962565] [2024-11-08 16:05:02,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200962565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:02,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:02,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:05:02,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309568885] [2024-11-08 16:05:02,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:02,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:05:02,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:02,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:05:02,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:05:02,897 INFO L87 Difference]: Start difference. First operand 5797 states and 8535 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:02,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:02,920 INFO L93 Difference]: Finished difference Result 5827 states and 8578 transitions. [2024-11-08 16:05:02,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:05:02,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2024-11-08 16:05:02,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:02,924 INFO L225 Difference]: With dead ends: 5827 [2024-11-08 16:05:02,924 INFO L226 Difference]: Without dead ends: 5825 [2024-11-08 16:05:02,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:05:02,926 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:02,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 853 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:02,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5825 states. [2024-11-08 16:05:02,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5825 to 5825. [2024-11-08 16:05:02,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5825 states, 5824 states have (on average 1.4649725274725274) internal successors, (8532), 5824 states have internal predecessors, (8532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:02,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5825 states to 5825 states and 8532 transitions. [2024-11-08 16:05:02,970 INFO L78 Accepts]: Start accepts. Automaton has 5825 states and 8532 transitions. Word has length 105 [2024-11-08 16:05:02,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:02,971 INFO L471 AbstractCegarLoop]: Abstraction has 5825 states and 8532 transitions. [2024-11-08 16:05:02,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:02,971 INFO L276 IsEmpty]: Start isEmpty. Operand 5825 states and 8532 transitions. [2024-11-08 16:05:02,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 16:05:02,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:02,971 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:02,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 16:05:02,972 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:02,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:02,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1836352301, now seen corresponding path program 1 times [2024-11-08 16:05:02,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:02,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778267363] [2024-11-08 16:05:02,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:02,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:03,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:03,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:03,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778267363] [2024-11-08 16:05:03,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778267363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:03,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:03,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 16:05:03,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120610096] [2024-11-08 16:05:03,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:03,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 16:05:03,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:03,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 16:05:03,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:05:03,450 INFO L87 Difference]: Start difference. First operand 5825 states and 8532 transitions. Second operand has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 13 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:03,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:03,911 INFO L93 Difference]: Finished difference Result 13056 states and 19194 transitions. [2024-11-08 16:05:03,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:05:03,912 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 13 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2024-11-08 16:05:03,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:03,918 INFO L225 Difference]: With dead ends: 13056 [2024-11-08 16:05:03,918 INFO L226 Difference]: Without dead ends: 11507 [2024-11-08 16:05:03,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-08 16:05:03,921 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 757 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:03,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 2270 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:05:03,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11507 states. [2024-11-08 16:05:03,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11507 to 5822. [2024-11-08 16:05:03,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5822 states, 5821 states have (on average 1.464696787493558) internal successors, (8526), 5821 states have internal predecessors, (8526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:03,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5822 states to 5822 states and 8526 transitions. [2024-11-08 16:05:03,985 INFO L78 Accepts]: Start accepts. Automaton has 5822 states and 8526 transitions. Word has length 105 [2024-11-08 16:05:03,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:03,986 INFO L471 AbstractCegarLoop]: Abstraction has 5822 states and 8526 transitions. [2024-11-08 16:05:03,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 13 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:03,986 INFO L276 IsEmpty]: Start isEmpty. Operand 5822 states and 8526 transitions. [2024-11-08 16:05:03,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 16:05:03,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:03,987 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:03,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 16:05:03,987 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:03,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:03,987 INFO L85 PathProgramCache]: Analyzing trace with hash 291382920, now seen corresponding path program 1 times [2024-11-08 16:05:03,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:03,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225018637] [2024-11-08 16:05:03,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:03,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:04,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:04,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:04,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225018637] [2024-11-08 16:05:04,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225018637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:04,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:04,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 16:05:04,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052856141] [2024-11-08 16:05:04,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:04,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 16:05:04,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:04,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 16:05:04,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:05:04,360 INFO L87 Difference]: Start difference. First operand 5822 states and 8526 transitions. Second operand has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:04,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:04,628 INFO L93 Difference]: Finished difference Result 12537 states and 18437 transitions. [2024-11-08 16:05:04,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 16:05:04,629 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2024-11-08 16:05:04,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:04,636 INFO L225 Difference]: With dead ends: 12537 [2024-11-08 16:05:04,636 INFO L226 Difference]: Without dead ends: 11215 [2024-11-08 16:05:04,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:05:04,639 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 860 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:04,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 1239 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:05:04,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11215 states. [2024-11-08 16:05:04,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11215 to 5671. [2024-11-08 16:05:04,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5671 states, 5670 states have (on average 1.4663139329805996) internal successors, (8314), 5670 states have internal predecessors, (8314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:04,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5671 states to 5671 states and 8314 transitions. [2024-11-08 16:05:04,726 INFO L78 Accepts]: Start accepts. Automaton has 5671 states and 8314 transitions. Word has length 106 [2024-11-08 16:05:04,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:04,726 INFO L471 AbstractCegarLoop]: Abstraction has 5671 states and 8314 transitions. [2024-11-08 16:05:04,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:04,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5671 states and 8314 transitions. [2024-11-08 16:05:04,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 16:05:04,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:04,729 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:04,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-08 16:05:04,729 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:04,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:04,730 INFO L85 PathProgramCache]: Analyzing trace with hash -483955458, now seen corresponding path program 1 times [2024-11-08 16:05:04,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:04,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450374942] [2024-11-08 16:05:04,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:04,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:04,878 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:04,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:04,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450374942] [2024-11-08 16:05:04,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450374942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:04,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:04,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:05:04,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562587133] [2024-11-08 16:05:04,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:04,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:05:04,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:04,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:05:04,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:05:04,881 INFO L87 Difference]: Start difference. First operand 5671 states and 8314 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:05,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:05,136 INFO L93 Difference]: Finished difference Result 19149 states and 28348 transitions. [2024-11-08 16:05:05,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:05:05,136 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-08 16:05:05,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:05,148 INFO L225 Difference]: With dead ends: 19149 [2024-11-08 16:05:05,149 INFO L226 Difference]: Without dead ends: 13607 [2024-11-08 16:05:05,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:05:05,155 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 936 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:05,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 534 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:05:05,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13607 states. [2024-11-08 16:05:05,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13607 to 8481. [2024-11-08 16:05:05,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8481 states, 8480 states have (on average 1.4685141509433963) internal successors, (12453), 8480 states have internal predecessors, (12453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:05,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8481 states to 8481 states and 12453 transitions. [2024-11-08 16:05:05,237 INFO L78 Accepts]: Start accepts. Automaton has 8481 states and 12453 transitions. Word has length 137 [2024-11-08 16:05:05,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:05,238 INFO L471 AbstractCegarLoop]: Abstraction has 8481 states and 12453 transitions. [2024-11-08 16:05:05,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:05,238 INFO L276 IsEmpty]: Start isEmpty. Operand 8481 states and 12453 transitions. [2024-11-08 16:05:05,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 16:05:05,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:05,240 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:05,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-08 16:05:05,240 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:05,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:05,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1818088921, now seen corresponding path program 1 times [2024-11-08 16:05:05,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:05,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366052956] [2024-11-08 16:05:05,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:05,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:05,347 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:05,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:05,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366052956] [2024-11-08 16:05:05,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366052956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:05,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:05,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:05:05,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580308539] [2024-11-08 16:05:05,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:05,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:05:05,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:05,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:05:05,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:05:05,349 INFO L87 Difference]: Start difference. First operand 8481 states and 12453 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:05,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:05,576 INFO L93 Difference]: Finished difference Result 29753 states and 43949 transitions. [2024-11-08 16:05:05,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:05:05,576 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-08 16:05:05,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:05,593 INFO L225 Difference]: With dead ends: 29753 [2024-11-08 16:05:05,594 INFO L226 Difference]: Without dead ends: 21437 [2024-11-08 16:05:05,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:05:05,602 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 1066 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:05,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1066 Valid, 413 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:05:05,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21437 states. [2024-11-08 16:05:05,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21437 to 17955. [2024-11-08 16:05:05,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17955 states, 17954 states have (on average 1.4673053358583046) internal successors, (26344), 17954 states have internal predecessors, (26344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:05,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17955 states to 17955 states and 26344 transitions. [2024-11-08 16:05:05,789 INFO L78 Accepts]: Start accepts. Automaton has 17955 states and 26344 transitions. Word has length 137 [2024-11-08 16:05:05,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:05,790 INFO L471 AbstractCegarLoop]: Abstraction has 17955 states and 26344 transitions. [2024-11-08 16:05:05,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:05,790 INFO L276 IsEmpty]: Start isEmpty. Operand 17955 states and 26344 transitions. [2024-11-08 16:05:05,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 16:05:05,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:05,792 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:05,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-08 16:05:05,793 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:05,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:05,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1309320787, now seen corresponding path program 1 times [2024-11-08 16:05:05,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:05,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279357202] [2024-11-08 16:05:05,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:05,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:05,898 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:05,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:05,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279357202] [2024-11-08 16:05:05,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279357202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:05,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:05,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:05:05,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758024039] [2024-11-08 16:05:05,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:05,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:05:05,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:05,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:05:05,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:05:05,900 INFO L87 Difference]: Start difference. First operand 17955 states and 26344 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:06,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:06,153 INFO L93 Difference]: Finished difference Result 58175 states and 85622 transitions. [2024-11-08 16:05:06,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:05:06,154 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-08 16:05:06,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:06,195 INFO L225 Difference]: With dead ends: 58175 [2024-11-08 16:05:06,195 INFO L226 Difference]: Without dead ends: 40385 [2024-11-08 16:05:06,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:05:06,216 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 981 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:06,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [981 Valid, 411 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:05:06,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40385 states. [2024-11-08 16:05:06,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40385 to 38063. [2024-11-08 16:05:06,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38063 states, 38062 states have (on average 1.4647154642425517) internal successors, (55750), 38062 states have internal predecessors, (55750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:06,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38063 states to 38063 states and 55750 transitions. [2024-11-08 16:05:06,746 INFO L78 Accepts]: Start accepts. Automaton has 38063 states and 55750 transitions. Word has length 137 [2024-11-08 16:05:06,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:06,747 INFO L471 AbstractCegarLoop]: Abstraction has 38063 states and 55750 transitions. [2024-11-08 16:05:06,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:06,747 INFO L276 IsEmpty]: Start isEmpty. Operand 38063 states and 55750 transitions. [2024-11-08 16:05:06,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 16:05:06,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:06,749 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:06,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-08 16:05:06,750 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:06,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:06,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1371947553, now seen corresponding path program 1 times [2024-11-08 16:05:06,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:06,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756449033] [2024-11-08 16:05:06,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:06,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:06,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:06,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756449033] [2024-11-08 16:05:06,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756449033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:06,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:06,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:05:06,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352591316] [2024-11-08 16:05:06,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:06,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:05:06,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:06,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:05:06,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:05:06,881 INFO L87 Difference]: Start difference. First operand 38063 states and 55750 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:07,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:07,358 INFO L93 Difference]: Finished difference Result 136595 states and 200752 transitions. [2024-11-08 16:05:07,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:05:07,359 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-08 16:05:07,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:07,472 INFO L225 Difference]: With dead ends: 136595 [2024-11-08 16:05:07,472 INFO L226 Difference]: Without dead ends: 98697 [2024-11-08 16:05:07,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:05:07,517 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 1151 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:07,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 415 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:05:07,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98697 states. [2024-11-08 16:05:08,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98697 to 80599. [2024-11-08 16:05:08,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80599 states, 80598 states have (on average 1.4616988014590933) internal successors, (117810), 80598 states have internal predecessors, (117810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:08,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80599 states to 80599 states and 117810 transitions. [2024-11-08 16:05:08,828 INFO L78 Accepts]: Start accepts. Automaton has 80599 states and 117810 transitions. Word has length 137 [2024-11-08 16:05:08,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:08,829 INFO L471 AbstractCegarLoop]: Abstraction has 80599 states and 117810 transitions. [2024-11-08 16:05:08,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:08,830 INFO L276 IsEmpty]: Start isEmpty. Operand 80599 states and 117810 transitions. [2024-11-08 16:05:08,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 16:05:08,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:08,837 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:08,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-08 16:05:08,838 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:08,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:08,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1431544219, now seen corresponding path program 1 times [2024-11-08 16:05:08,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:08,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74893221] [2024-11-08 16:05:08,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:08,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:08,961 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:08,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:08,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74893221] [2024-11-08 16:05:08,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74893221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:08,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:08,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:05:08,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819765242] [2024-11-08 16:05:08,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:08,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:05:09,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:09,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:05:09,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:05:09,034 INFO L87 Difference]: Start difference. First operand 80599 states and 117810 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:10,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:10,085 INFO L93 Difference]: Finished difference Result 300859 states and 441220 transitions. [2024-11-08 16:05:10,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:05:10,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-08 16:05:10,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:10,350 INFO L225 Difference]: With dead ends: 300859 [2024-11-08 16:05:10,351 INFO L226 Difference]: Without dead ends: 220425 [2024-11-08 16:05:10,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:05:10,406 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 1236 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:10,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 417 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:05:10,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220425 states. [2024-11-08 16:05:12,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220425 to 170311. [2024-11-08 16:05:12,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170311 states, 170310 states have (on average 1.4586694850566613) internal successors, (248426), 170310 states have internal predecessors, (248426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:12,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170311 states to 170311 states and 248426 transitions. [2024-11-08 16:05:12,839 INFO L78 Accepts]: Start accepts. Automaton has 170311 states and 248426 transitions. Word has length 137 [2024-11-08 16:05:12,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:12,839 INFO L471 AbstractCegarLoop]: Abstraction has 170311 states and 248426 transitions. [2024-11-08 16:05:12,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:12,839 INFO L276 IsEmpty]: Start isEmpty. Operand 170311 states and 248426 transitions. [2024-11-08 16:05:12,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 16:05:12,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:12,843 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:12,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-08 16:05:12,843 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:12,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:12,843 INFO L85 PathProgramCache]: Analyzing trace with hash 423363868, now seen corresponding path program 1 times [2024-11-08 16:05:12,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:12,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928584749] [2024-11-08 16:05:12,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:12,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:12,920 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:12,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:12,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928584749] [2024-11-08 16:05:12,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928584749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:12,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:12,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:12,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64899649] [2024-11-08 16:05:12,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:12,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:12,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:12,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:12,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:12,923 INFO L87 Difference]: Start difference. First operand 170311 states and 248426 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:13,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:13,884 INFO L93 Difference]: Finished difference Result 300843 states and 438988 transitions. [2024-11-08 16:05:13,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:13,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-08 16:05:13,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:14,098 INFO L225 Difference]: With dead ends: 300843 [2024-11-08 16:05:14,098 INFO L226 Difference]: Without dead ends: 165031 [2024-11-08 16:05:14,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:14,198 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 99 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 471 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 [2024-11-08 16:05:14,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 471 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:14,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165031 states. [2024-11-08 16:05:16,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165031 to 165029. [2024-11-08 16:05:16,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165029 states, 165028 states have (on average 1.4500690791865622) internal successors, (239302), 165028 states have internal predecessors, (239302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:16,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165029 states to 165029 states and 239302 transitions. [2024-11-08 16:05:16,529 INFO L78 Accepts]: Start accepts. Automaton has 165029 states and 239302 transitions. Word has length 137 [2024-11-08 16:05:16,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:16,529 INFO L471 AbstractCegarLoop]: Abstraction has 165029 states and 239302 transitions. [2024-11-08 16:05:16,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:16,529 INFO L276 IsEmpty]: Start isEmpty. Operand 165029 states and 239302 transitions. [2024-11-08 16:05:16,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-08 16:05:16,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:16,551 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:16,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-08 16:05:16,551 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:16,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:16,551 INFO L85 PathProgramCache]: Analyzing trace with hash 589666883, now seen corresponding path program 1 times [2024-11-08 16:05:16,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:16,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507938988] [2024-11-08 16:05:16,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:16,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:16,647 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 16:05:16,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:16,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507938988] [2024-11-08 16:05:16,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507938988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:16,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:16,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:16,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540950586] [2024-11-08 16:05:16,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:16,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:16,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:16,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:16,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:16,649 INFO L87 Difference]: Start difference. First operand 165029 states and 239302 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:17,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:17,675 INFO L93 Difference]: Finished difference Result 320105 states and 463512 transitions. [2024-11-08 16:05:17,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:17,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 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 168 [2024-11-08 16:05:17,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:17,868 INFO L225 Difference]: With dead ends: 320105 [2024-11-08 16:05:17,868 INFO L226 Difference]: Without dead ends: 155233 [2024-11-08 16:05:17,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:17,960 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 95 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 461 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 [2024-11-08 16:05:17,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 461 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:18,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155233 states. [2024-11-08 16:05:19,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155233 to 152339. [2024-11-08 16:05:19,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152339 states, 152338 states have (on average 1.4399361945148288) internal successors, (219357), 152338 states have internal predecessors, (219357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:19,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152339 states to 152339 states and 219357 transitions. [2024-11-08 16:05:19,972 INFO L78 Accepts]: Start accepts. Automaton has 152339 states and 219357 transitions. Word has length 168 [2024-11-08 16:05:19,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:19,972 INFO L471 AbstractCegarLoop]: Abstraction has 152339 states and 219357 transitions. [2024-11-08 16:05:19,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:19,972 INFO L276 IsEmpty]: Start isEmpty. Operand 152339 states and 219357 transitions. [2024-11-08 16:05:19,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-08 16:05:19,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:19,990 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:19,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-08 16:05:19,990 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:19,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:19,991 INFO L85 PathProgramCache]: Analyzing trace with hash -255320785, now seen corresponding path program 1 times [2024-11-08 16:05:19,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:19,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277918631] [2024-11-08 16:05:19,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:19,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:20,093 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-08 16:05:20,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:20,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277918631] [2024-11-08 16:05:20,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277918631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:20,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:20,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:20,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718170876] [2024-11-08 16:05:20,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:20,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:20,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:20,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:20,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:20,094 INFO L87 Difference]: Start difference. First operand 152339 states and 219357 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:21,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:21,084 INFO L93 Difference]: Finished difference Result 294791 states and 423711 transitions. [2024-11-08 16:05:21,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:21,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 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 169 [2024-11-08 16:05:21,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:21,238 INFO L225 Difference]: With dead ends: 294791 [2024-11-08 16:05:21,239 INFO L226 Difference]: Without dead ends: 142597 [2024-11-08 16:05:21,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:21,307 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 88 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 462 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 [2024-11-08 16:05:21,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 462 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:21,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142597 states. [2024-11-08 16:05:22,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142597 to 139811. [2024-11-08 16:05:23,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139811 states, 139810 states have (on average 1.4295758529432803) internal successors, (199869), 139810 states have internal predecessors, (199869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:23,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139811 states to 139811 states and 199869 transitions. [2024-11-08 16:05:23,728 INFO L78 Accepts]: Start accepts. Automaton has 139811 states and 199869 transitions. Word has length 169 [2024-11-08 16:05:23,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:23,729 INFO L471 AbstractCegarLoop]: Abstraction has 139811 states and 199869 transitions. [2024-11-08 16:05:23,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:23,729 INFO L276 IsEmpty]: Start isEmpty. Operand 139811 states and 199869 transitions. [2024-11-08 16:05:23,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-08 16:05:23,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:23,742 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:23,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-08 16:05:23,743 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:23,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:23,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1902499464, now seen corresponding path program 1 times [2024-11-08 16:05:23,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:23,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849922031] [2024-11-08 16:05:23,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:23,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:23,835 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-08 16:05:23,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:23,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849922031] [2024-11-08 16:05:23,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849922031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:23,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:23,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:23,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563059334] [2024-11-08 16:05:23,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:23,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:23,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:23,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:23,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:23,836 INFO L87 Difference]: Start difference. First operand 139811 states and 199869 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:24,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:24,330 INFO L93 Difference]: Finished difference Result 269735 states and 384735 transitions. [2024-11-08 16:05:24,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:24,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 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 170 [2024-11-08 16:05:24,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:24,478 INFO L225 Difference]: With dead ends: 269735 [2024-11-08 16:05:24,478 INFO L226 Difference]: Without dead ends: 130069 [2024-11-08 16:05:24,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:24,568 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 81 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 463 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 [2024-11-08 16:05:24,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 463 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:24,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130069 states. [2024-11-08 16:05:26,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130069 to 127283. [2024-11-08 16:05:26,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127283 states, 127282 states have (on average 1.4171760343174997) internal successors, (180381), 127282 states have internal predecessors, (180381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:26,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127283 states to 127283 states and 180381 transitions. [2024-11-08 16:05:26,440 INFO L78 Accepts]: Start accepts. Automaton has 127283 states and 180381 transitions. Word has length 170 [2024-11-08 16:05:26,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:26,441 INFO L471 AbstractCegarLoop]: Abstraction has 127283 states and 180381 transitions. [2024-11-08 16:05:26,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:26,441 INFO L276 IsEmpty]: Start isEmpty. Operand 127283 states and 180381 transitions. [2024-11-08 16:05:26,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-08 16:05:26,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:26,451 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:26,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-08 16:05:26,451 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:26,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:26,452 INFO L85 PathProgramCache]: Analyzing trace with hash -247744783, now seen corresponding path program 1 times [2024-11-08 16:05:26,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:26,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835433933] [2024-11-08 16:05:26,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:26,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:26,545 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 16:05:26,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:26,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835433933] [2024-11-08 16:05:26,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835433933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:26,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:26,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:26,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117294349] [2024-11-08 16:05:26,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:26,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:26,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:26,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:26,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:26,548 INFO L87 Difference]: Start difference. First operand 127283 states and 180381 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:26,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:26,997 INFO L93 Difference]: Finished difference Result 244679 states and 345759 transitions. [2024-11-08 16:05:26,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:26,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 171 [2024-11-08 16:05:26,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:27,128 INFO L225 Difference]: With dead ends: 244679 [2024-11-08 16:05:27,128 INFO L226 Difference]: Without dead ends: 117541 [2024-11-08 16:05:27,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:27,669 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 74 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 464 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 [2024-11-08 16:05:27,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 464 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:27,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117541 states. [2024-11-08 16:05:29,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117541 to 114755. [2024-11-08 16:05:29,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114755 states, 114754 states have (on average 1.4020687732018056) internal successors, (160893), 114754 states have internal predecessors, (160893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:29,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114755 states to 114755 states and 160893 transitions. [2024-11-08 16:05:29,387 INFO L78 Accepts]: Start accepts. Automaton has 114755 states and 160893 transitions. Word has length 171 [2024-11-08 16:05:29,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:29,387 INFO L471 AbstractCegarLoop]: Abstraction has 114755 states and 160893 transitions. [2024-11-08 16:05:29,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:29,387 INFO L276 IsEmpty]: Start isEmpty. Operand 114755 states and 160893 transitions. [2024-11-08 16:05:29,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-08 16:05:29,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:29,393 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:29,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-08 16:05:29,394 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:29,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:29,394 INFO L85 PathProgramCache]: Analyzing trace with hash -497965922, now seen corresponding path program 1 times [2024-11-08 16:05:29,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:29,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961676071] [2024-11-08 16:05:29,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:29,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:29,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:29,491 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 16:05:29,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:29,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961676071] [2024-11-08 16:05:29,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961676071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:29,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:29,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:29,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091937376] [2024-11-08 16:05:29,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:29,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:29,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:29,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:29,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:29,493 INFO L87 Difference]: Start difference. First operand 114755 states and 160893 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:30,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:30,034 INFO L93 Difference]: Finished difference Result 333767 states and 465663 transitions. [2024-11-08 16:05:30,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:30,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 172 [2024-11-08 16:05:30,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:30,870 INFO L225 Difference]: With dead ends: 333767 [2024-11-08 16:05:30,870 INFO L226 Difference]: Without dead ends: 219157 [2024-11-08 16:05:30,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:30,919 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 67 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 465 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 [2024-11-08 16:05:30,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 465 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:31,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219157 states. [2024-11-08 16:05:32,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219157 to 206163. [2024-11-08 16:05:32,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206163 states, 206162 states have (on average 1.3890290160165306) internal successors, (286365), 206162 states have internal predecessors, (286365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:33,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206163 states to 206163 states and 286365 transitions. [2024-11-08 16:05:33,689 INFO L78 Accepts]: Start accepts. Automaton has 206163 states and 286365 transitions. Word has length 172 [2024-11-08 16:05:33,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:33,690 INFO L471 AbstractCegarLoop]: Abstraction has 206163 states and 286365 transitions. [2024-11-08 16:05:33,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:33,690 INFO L276 IsEmpty]: Start isEmpty. Operand 206163 states and 286365 transitions. [2024-11-08 16:05:33,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-08 16:05:33,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:33,700 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:33,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-08 16:05:33,700 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:33,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:33,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1624774222, now seen corresponding path program 1 times [2024-11-08 16:05:33,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:33,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361102620] [2024-11-08 16:05:33,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:33,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:33,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:33,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361102620] [2024-11-08 16:05:33,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361102620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:33,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:33,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:33,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732624786] [2024-11-08 16:05:33,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:33,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:33,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:33,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:33,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:33,834 INFO L87 Difference]: Start difference. First operand 206163 states and 286365 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:34,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:34,731 INFO L93 Difference]: Finished difference Result 360749 states and 500068 transitions. [2024-11-08 16:05:34,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:34,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-08 16:05:34,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted.