./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.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 db03244f437c604118fe4e6b7fad5fed51908f88ca97b14f50d7801b4370610e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 21:43:53,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 21:43:53,408 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 21:43:53,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 21:43:53,414 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 21:43:53,470 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 21:43:53,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 21:43:53,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 21:43:53,473 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 21:43:53,474 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 21:43:53,475 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 21:43:53,475 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 21:43:53,476 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 21:43:53,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 21:43:53,478 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 21:43:53,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 21:43:53,479 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 21:43:53,479 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 21:43:53,479 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 21:43:53,480 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 21:43:53,480 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 21:43:53,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 21:43:53,484 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 21:43:53,484 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 21:43:53,485 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 21:43:53,485 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 21:43:53,485 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 21:43:53,485 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 21:43:53,485 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 21:43:53,486 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 21:43:53,486 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 21:43:53,486 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 21:43:53,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:43:53,487 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 21:43:53,487 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 21:43:53,487 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 21:43:53,487 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 21:43:53,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 21:43:53,488 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 21:43:53,488 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 21:43:53,489 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 21:43:53,490 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 21:43:53,490 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db03244f437c604118fe4e6b7fad5fed51908f88ca97b14f50d7801b4370610e [2024-11-11 21:43:53,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 21:43:53,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 21:43:53,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 21:43:53,797 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 21:43:53,797 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 21:43:53,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-11 21:43:55,395 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 21:43:55,631 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 21:43:55,632 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-11 21:43:55,657 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d48a08c79/39dd6756c1484f119ebafe7437a69b96/FLAG7acf6e9cc [2024-11-11 21:43:55,675 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d48a08c79/39dd6756c1484f119ebafe7437a69b96 [2024-11-11 21:43:55,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 21:43:55,680 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 21:43:55,683 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 21:43:55,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 21:43:55,690 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 21:43:55,691 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:43:55" (1/1) ... [2024-11-11 21:43:55,692 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dbfedbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:43:55, skipping insertion in model container [2024-11-11 21:43:55,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 09:43:55" (1/1) ... [2024-11-11 21:43:55,744 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 21:43:56,052 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.BOUNDED-12.pals.c.v+nlh-reducer.c[9243,9256] [2024-11-11 21:43:56,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:43:56,144 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 21:43:56,219 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.BOUNDED-12.pals.c.v+nlh-reducer.c[9243,9256] [2024-11-11 21:43:56,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 21:43:56,271 INFO L204 MainTranslator]: Completed translation [2024-11-11 21:43:56,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:43:56 WrapperNode [2024-11-11 21:43:56,272 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 21:43:56,273 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 21:43:56,273 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 21:43:56,273 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 21:43:56,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:43:56" (1/1) ... [2024-11-11 21:43:56,304 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:43:56" (1/1) ... [2024-11-11 21:43:56,353 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 811 [2024-11-11 21:43:56,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 21:43:56,354 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 21:43:56,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 21:43:56,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 21:43:56,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:43:56" (1/1) ... [2024-11-11 21:43:56,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:43:56" (1/1) ... [2024-11-11 21:43:56,378 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:43:56" (1/1) ... [2024-11-11 21:43:56,409 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-11 21:43:56,413 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:43:56" (1/1) ... [2024-11-11 21:43:56,413 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:43:56" (1/1) ... [2024-11-11 21:43:56,433 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:43:56" (1/1) ... [2024-11-11 21:43:56,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:43:56" (1/1) ... [2024-11-11 21:43:56,445 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:43:56" (1/1) ... [2024-11-11 21:43:56,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:43:56" (1/1) ... [2024-11-11 21:43:56,455 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 21:43:56,456 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 21:43:56,456 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 21:43:56,456 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 21:43:56,457 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:43:56" (1/1) ... [2024-11-11 21:43:56,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 21:43:56,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 21:43:56,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 21:43:56,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 21:43:56,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 21:43:56,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 21:43:56,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 21:43:56,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 21:43:56,727 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 21:43:56,732 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 21:43:57,571 INFO L? ?]: Removed 99 outVars from TransFormulas that were not future-live. [2024-11-11 21:43:57,575 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 21:43:57,596 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 21:43:57,599 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-11 21:43:57,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:43:57 BoogieIcfgContainer [2024-11-11 21:43:57,600 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 21:43:57,602 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 21:43:57,603 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 21:43:57,607 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 21:43:57,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 09:43:55" (1/3) ... [2024-11-11 21:43:57,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c60170e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:43:57, skipping insertion in model container [2024-11-11 21:43:57,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 09:43:56" (2/3) ... [2024-11-11 21:43:57,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c60170e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 09:43:57, skipping insertion in model container [2024-11-11 21:43:57,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 09:43:57" (3/3) ... [2024-11-11 21:43:57,610 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+nlh-reducer.c [2024-11-11 21:43:57,629 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 21:43:57,630 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 21:43:57,702 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 21:43:57,709 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;@3e99847c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 21:43:57,710 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 21:43:57,717 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 176 states have (on average 1.7613636363636365) internal successors, (310), 177 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:43:57,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-11 21:43:57,727 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:43:57,728 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:43:57,728 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:43:57,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:43:57,733 INFO L85 PathProgramCache]: Analyzing trace with hash 2136906399, now seen corresponding path program 1 times [2024-11-11 21:43:57,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:43:57,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968911045] [2024-11-11 21:43:57,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:43:57,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:43:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:43:58,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:43:58,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:43:58,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968911045] [2024-11-11 21:43:58,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968911045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:43:58,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:43:58,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 21:43:58,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170649151] [2024-11-11 21:43:58,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:43:58,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 21:43:58,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:43:58,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 21:43:58,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:43:58,614 INFO L87 Difference]: Start difference. First operand has 178 states, 176 states have (on average 1.7613636363636365) internal successors, (310), 177 states have internal predecessors, (310), 0 states have call successors, (0), 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 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:43:59,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:43:59,163 INFO L93 Difference]: Finished difference Result 1147 states and 1843 transitions. [2024-11-11 21:43:59,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-11 21:43:59,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-11-11 21:43:59,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:43:59,191 INFO L225 Difference]: With dead ends: 1147 [2024-11-11 21:43:59,192 INFO L226 Difference]: Without dead ends: 1037 [2024-11-11 21:43:59,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:43:59,200 INFO L435 NwaCegarLoop]: 719 mSDtfsCounter, 2029 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 3789 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 21:43:59,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 3789 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 21:43:59,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-11-11 21:43:59,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 270. [2024-11-11 21:43:59,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 269 states have (on average 1.449814126394052) internal successors, (390), 269 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:43:59,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 390 transitions. [2024-11-11 21:43:59,281 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 390 transitions. Word has length 91 [2024-11-11 21:43:59,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:43:59,282 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 390 transitions. [2024-11-11 21:43:59,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:43:59,283 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 390 transitions. [2024-11-11 21:43:59,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 21:43:59,287 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:43:59,287 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:43:59,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 21:43:59,287 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:43:59,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:43:59,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1446649810, now seen corresponding path program 1 times [2024-11-11 21:43:59,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:43:59,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37758029] [2024-11-11 21:43:59,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:43:59,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:43:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:43:59,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:43:59,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:43:59,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37758029] [2024-11-11 21:43:59,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37758029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:43:59,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:43:59,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 21:43:59,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374081353] [2024-11-11 21:43:59,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:43:59,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 21:43:59,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:43:59,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 21:43:59,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:43:59,697 INFO L87 Difference]: Start difference. First operand 270 states and 390 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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) [2024-11-11 21:43:59,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:43:59,940 INFO L93 Difference]: Finished difference Result 1236 states and 1911 transitions. [2024-11-11 21:43:59,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 21:43:59,941 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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 [2024-11-11 21:43:59,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:43:59,945 INFO L225 Difference]: With dead ends: 1236 [2024-11-11 21:43:59,945 INFO L226 Difference]: Without dead ends: 1096 [2024-11-11 21:43:59,946 INFO L434 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 [2024-11-11 21:43:59,948 INFO L435 NwaCegarLoop]: 674 mSDtfsCounter, 1353 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 2091 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:43:59,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 2091 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:43:59,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2024-11-11 21:43:59,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 429. [2024-11-11 21:43:59,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 428 states have (on average 1.5) internal successors, (642), 428 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:43:59,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 642 transitions. [2024-11-11 21:43:59,978 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 642 transitions. Word has length 93 [2024-11-11 21:43:59,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:43:59,979 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 642 transitions. [2024-11-11 21:43:59,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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) [2024-11-11 21:43:59,980 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 642 transitions. [2024-11-11 21:43:59,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 21:43:59,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:43:59,982 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:43:59,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 21:43:59,982 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:43:59,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:43:59,983 INFO L85 PathProgramCache]: Analyzing trace with hash 529896762, now seen corresponding path program 1 times [2024-11-11 21:43:59,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:43:59,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455769049] [2024-11-11 21:43:59,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:43:59,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:00,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:00,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:00,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455769049] [2024-11-11 21:44:00,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455769049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:00,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:00,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 21:44:00,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382290302] [2024-11-11 21:44:00,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:00,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 21:44:00,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:00,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 21:44:00,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:44:00,261 INFO L87 Difference]: Start difference. First operand 429 states and 642 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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) [2024-11-11 21:44:00,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:00,487 INFO L93 Difference]: Finished difference Result 1390 states and 2155 transitions. [2024-11-11 21:44:00,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 21:44:00,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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 [2024-11-11 21:44:00,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:00,496 INFO L225 Difference]: With dead ends: 1390 [2024-11-11 21:44:00,496 INFO L226 Difference]: Without dead ends: 1250 [2024-11-11 21:44:00,498 INFO L434 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 [2024-11-11 21:44:00,501 INFO L435 NwaCegarLoop]: 565 mSDtfsCounter, 1559 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:00,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1559 Valid, 1786 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:44:00,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-11 21:44:00,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 652. [2024-11-11 21:44:00,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 651 states have (on average 1.5284178187403994) internal successors, (995), 651 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:00,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 995 transitions. [2024-11-11 21:44:00,525 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 995 transitions. Word has length 93 [2024-11-11 21:44:00,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:00,527 INFO L471 AbstractCegarLoop]: Abstraction has 652 states and 995 transitions. [2024-11-11 21:44:00,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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) [2024-11-11 21:44:00,530 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 995 transitions. [2024-11-11 21:44:00,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 21:44:00,534 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:00,534 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:00,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 21:44:00,535 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:00,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:00,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1234930226, now seen corresponding path program 1 times [2024-11-11 21:44:00,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:00,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059384612] [2024-11-11 21:44:00,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:00,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:00,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:00,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:00,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059384612] [2024-11-11 21:44:00,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059384612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:00,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:00,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 21:44:00,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416126966] [2024-11-11 21:44:00,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:00,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 21:44:00,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:00,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 21:44:00,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:44:00,769 INFO L87 Difference]: Start difference. First operand 652 states and 995 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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) [2024-11-11 21:44:00,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:00,982 INFO L93 Difference]: Finished difference Result 1539 states and 2391 transitions. [2024-11-11 21:44:00,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 21:44:00,983 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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 [2024-11-11 21:44:00,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:00,989 INFO L225 Difference]: With dead ends: 1539 [2024-11-11 21:44:00,989 INFO L226 Difference]: Without dead ends: 1399 [2024-11-11 21:44:00,990 INFO L434 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 [2024-11-11 21:44:00,995 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 1757 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1757 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:00,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1757 Valid, 1934 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:44:00,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2024-11-11 21:44:01,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 796. [2024-11-11 21:44:01,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 795 states have (on average 1.538364779874214) internal successors, (1223), 795 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:01,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1223 transitions. [2024-11-11 21:44:01,019 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1223 transitions. Word has length 93 [2024-11-11 21:44:01,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:01,020 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1223 transitions. [2024-11-11 21:44:01,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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) [2024-11-11 21:44:01,020 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1223 transitions. [2024-11-11 21:44:01,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 21:44:01,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:01,024 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:01,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 21:44:01,025 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:01,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:01,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1576423674, now seen corresponding path program 1 times [2024-11-11 21:44:01,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:01,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443995046] [2024-11-11 21:44:01,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:01,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:01,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:01,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:01,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443995046] [2024-11-11 21:44:01,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443995046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:01,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:01,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 21:44:01,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142952352] [2024-11-11 21:44:01,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:01,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 21:44:01,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:01,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 21:44:01,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:44:01,259 INFO L87 Difference]: Start difference. First operand 796 states and 1223 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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) [2024-11-11 21:44:01,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:01,448 INFO L93 Difference]: Finished difference Result 1678 states and 2611 transitions. [2024-11-11 21:44:01,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 21:44:01,449 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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 [2024-11-11 21:44:01,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:01,454 INFO L225 Difference]: With dead ends: 1678 [2024-11-11 21:44:01,454 INFO L226 Difference]: Without dead ends: 1538 [2024-11-11 21:44:01,455 INFO L434 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 [2024-11-11 21:44:01,456 INFO L435 NwaCegarLoop]: 339 mSDtfsCounter, 1864 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:01,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1864 Valid, 1808 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:44:01,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2024-11-11 21:44:01,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 935. [2024-11-11 21:44:01,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 934 states have (on average 1.544967880085653) internal successors, (1443), 934 states have internal predecessors, (1443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:01,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1443 transitions. [2024-11-11 21:44:01,474 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1443 transitions. Word has length 93 [2024-11-11 21:44:01,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:01,475 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1443 transitions. [2024-11-11 21:44:01,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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) [2024-11-11 21:44:01,475 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1443 transitions. [2024-11-11 21:44:01,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 21:44:01,476 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:01,476 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:01,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 21:44:01,477 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:01,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:01,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1813331907, now seen corresponding path program 1 times [2024-11-11 21:44:01,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:01,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596594725] [2024-11-11 21:44:01,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:01,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:01,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:01,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:01,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596594725] [2024-11-11 21:44:01,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596594725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:01,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:01,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 21:44:01,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917787474] [2024-11-11 21:44:01,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:01,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 21:44:01,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:01,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 21:44:01,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:44:01,861 INFO L87 Difference]: Start difference. First operand 935 states and 1443 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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) [2024-11-11 21:44:02,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:02,125 INFO L93 Difference]: Finished difference Result 1698 states and 2650 transitions. [2024-11-11 21:44:02,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 21:44:02,127 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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 [2024-11-11 21:44:02,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:02,130 INFO L225 Difference]: With dead ends: 1698 [2024-11-11 21:44:02,132 INFO L226 Difference]: Without dead ends: 937 [2024-11-11 21:44:02,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-11 21:44:02,134 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 448 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:02,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 956 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:44:02,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-11 21:44:02,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 935. [2024-11-11 21:44:02,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 934 states have (on average 1.5385438972162742) internal successors, (1437), 934 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:02,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1437 transitions. [2024-11-11 21:44:02,150 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1437 transitions. Word has length 93 [2024-11-11 21:44:02,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:02,150 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 1437 transitions. [2024-11-11 21:44:02,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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) [2024-11-11 21:44:02,151 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1437 transitions. [2024-11-11 21:44:02,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 21:44:02,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:02,152 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:02,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 21:44:02,152 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:02,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:02,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1570207556, now seen corresponding path program 1 times [2024-11-11 21:44:02,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:02,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916478960] [2024-11-11 21:44:02,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:02,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:02,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:02,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:02,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916478960] [2024-11-11 21:44:02,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916478960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:02,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:02,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:44:02,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315416673] [2024-11-11 21:44:02,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:02,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:44:02,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:02,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:44:02,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:44:02,217 INFO L87 Difference]: Start difference. First operand 935 states and 1437 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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) [2024-11-11 21:44:02,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:02,247 INFO L93 Difference]: Finished difference Result 2386 states and 3718 transitions. [2024-11-11 21:44:02,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:44:02,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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 [2024-11-11 21:44:02,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:02,253 INFO L225 Difference]: With dead ends: 2386 [2024-11-11 21:44:02,253 INFO L226 Difference]: Without dead ends: 1625 [2024-11-11 21:44:02,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:44:02,255 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 99 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:02,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 562 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:44:02,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1625 states. [2024-11-11 21:44:02,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1625 to 1623. [2024-11-11 21:44:02,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1623 states, 1622 states have (on average 1.5382244143033292) internal successors, (2495), 1622 states have internal predecessors, (2495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:02,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1623 states to 1623 states and 2495 transitions. [2024-11-11 21:44:02,290 INFO L78 Accepts]: Start accepts. Automaton has 1623 states and 2495 transitions. Word has length 93 [2024-11-11 21:44:02,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:02,290 INFO L471 AbstractCegarLoop]: Abstraction has 1623 states and 2495 transitions. [2024-11-11 21:44:02,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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) [2024-11-11 21:44:02,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2495 transitions. [2024-11-11 21:44:02,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 21:44:02,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:02,293 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:02,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 21:44:02,293 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:02,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:02,294 INFO L85 PathProgramCache]: Analyzing trace with hash -906608998, now seen corresponding path program 1 times [2024-11-11 21:44:02,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:02,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905486000] [2024-11-11 21:44:02,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:02,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:02,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:02,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:02,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905486000] [2024-11-11 21:44:02,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905486000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:02,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:02,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 21:44:02,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087450277] [2024-11-11 21:44:02,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:02,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 21:44:02,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:02,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 21:44:02,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:44:02,623 INFO L87 Difference]: Start difference. First operand 1623 states and 2495 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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) [2024-11-11 21:44:02,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:02,819 INFO L93 Difference]: Finished difference Result 3260 states and 5043 transitions. [2024-11-11 21:44:02,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 21:44:02,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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 [2024-11-11 21:44:02,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:02,828 INFO L225 Difference]: With dead ends: 3260 [2024-11-11 21:44:02,828 INFO L226 Difference]: Without dead ends: 2995 [2024-11-11 21:44:02,829 INFO L434 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 [2024-11-11 21:44:02,830 INFO L435 NwaCegarLoop]: 457 mSDtfsCounter, 1630 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 2500 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:02,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1630 Valid, 2500 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:44:02,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2024-11-11 21:44:02,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 1897. [2024-11-11 21:44:02,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1897 states, 1896 states have (on average 1.5411392405063291) internal successors, (2922), 1896 states have internal predecessors, (2922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:02,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2922 transitions. [2024-11-11 21:44:02,873 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2922 transitions. Word has length 93 [2024-11-11 21:44:02,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:02,874 INFO L471 AbstractCegarLoop]: Abstraction has 1897 states and 2922 transitions. [2024-11-11 21:44:02,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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) [2024-11-11 21:44:02,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2922 transitions. [2024-11-11 21:44:02,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 21:44:02,875 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:02,875 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:02,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 21:44:02,875 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:02,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:02,876 INFO L85 PathProgramCache]: Analyzing trace with hash 861848230, now seen corresponding path program 1 times [2024-11-11 21:44:02,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:02,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088456863] [2024-11-11 21:44:02,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:02,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:03,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:03,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:03,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088456863] [2024-11-11 21:44:03,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088456863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:03,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:03,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 21:44:03,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117822436] [2024-11-11 21:44:03,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:03,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 21:44:03,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:03,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 21:44:03,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 21:44:03,091 INFO L87 Difference]: Start difference. First operand 1897 states and 2922 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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) [2024-11-11 21:44:03,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:03,300 INFO L93 Difference]: Finished difference Result 3544 states and 5486 transitions. [2024-11-11 21:44:03,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 21:44:03,301 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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 [2024-11-11 21:44:03,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:03,312 INFO L225 Difference]: With dead ends: 3544 [2024-11-11 21:44:03,312 INFO L226 Difference]: Without dead ends: 3279 [2024-11-11 21:44:03,314 INFO L434 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 [2024-11-11 21:44:03,315 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 1746 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 2267 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:03,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 2267 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:44:03,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2024-11-11 21:44:03,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2181. [2024-11-11 21:44:03,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.5435779816513762) internal successors, (3365), 2180 states have internal predecessors, (3365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:03,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3365 transitions. [2024-11-11 21:44:03,369 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3365 transitions. Word has length 93 [2024-11-11 21:44:03,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:03,369 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3365 transitions. [2024-11-11 21:44:03,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 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) [2024-11-11 21:44:03,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3365 transitions. [2024-11-11 21:44:03,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-11 21:44:03,371 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:03,371 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:03,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 21:44:03,371 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:03,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:03,372 INFO L85 PathProgramCache]: Analyzing trace with hash 376805043, now seen corresponding path program 1 times [2024-11-11 21:44:03,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:03,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972170244] [2024-11-11 21:44:03,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:03,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:03,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:03,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:03,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972170244] [2024-11-11 21:44:03,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972170244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:03,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:03,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:44:03,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610928954] [2024-11-11 21:44:03,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:03,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:44:03,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:03,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:44:03,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:44:03,495 INFO L87 Difference]: Start difference. First operand 2181 states and 3365 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) [2024-11-11 21:44:03,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:03,645 INFO L93 Difference]: Finished difference Result 4311 states and 6677 transitions. [2024-11-11 21:44:03,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:44:03,646 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 [2024-11-11 21:44:03,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:03,653 INFO L225 Difference]: With dead ends: 4311 [2024-11-11 21:44:03,653 INFO L226 Difference]: Without dead ends: 2181 [2024-11-11 21:44:03,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:44:03,656 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 648 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:03,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 139 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:44:03,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-11 21:44:03,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2181. [2024-11-11 21:44:03,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 2180 states have (on average 1.5293577981651376) internal successors, (3334), 2180 states have internal predecessors, (3334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:03,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 3334 transitions. [2024-11-11 21:44:03,692 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 3334 transitions. Word has length 94 [2024-11-11 21:44:03,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:03,693 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 3334 transitions. [2024-11-11 21:44:03,693 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) [2024-11-11 21:44:03,693 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 3334 transitions. [2024-11-11 21:44:03,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-11 21:44:03,694 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:03,694 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:03,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 21:44:03,695 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:03,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:03,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1521549230, now seen corresponding path program 1 times [2024-11-11 21:44:03,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:03,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702335760] [2024-11-11 21:44:03,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:03,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:03,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:03,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:03,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702335760] [2024-11-11 21:44:03,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702335760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:03,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:03,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:44:03,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950928708] [2024-11-11 21:44:03,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:03,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:44:03,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:03,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:44:03,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:44:03,825 INFO L87 Difference]: Start difference. First operand 2181 states and 3334 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) [2024-11-11 21:44:04,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:04,050 INFO L93 Difference]: Finished difference Result 6387 states and 9819 transitions. [2024-11-11 21:44:04,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:44:04,051 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 [2024-11-11 21:44:04,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:04,064 INFO L225 Difference]: With dead ends: 6387 [2024-11-11 21:44:04,064 INFO L226 Difference]: Without dead ends: 4253 [2024-11-11 21:44:04,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:44:04,068 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 955 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:04,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 211 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:44:04,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4253 states. [2024-11-11 21:44:04,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 4251. [2024-11-11 21:44:04,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 4250 states have (on average 1.5296470588235294) internal successors, (6501), 4250 states have internal predecessors, (6501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:04,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 6501 transitions. [2024-11-11 21:44:04,144 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 6501 transitions. Word has length 95 [2024-11-11 21:44:04,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:04,144 INFO L471 AbstractCegarLoop]: Abstraction has 4251 states and 6501 transitions. [2024-11-11 21:44:04,145 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) [2024-11-11 21:44:04,145 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 6501 transitions. [2024-11-11 21:44:04,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-11 21:44:04,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:04,146 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:04,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 21:44:04,147 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:04,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:04,147 INFO L85 PathProgramCache]: Analyzing trace with hash -824700769, now seen corresponding path program 1 times [2024-11-11 21:44:04,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:04,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809327975] [2024-11-11 21:44:04,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:04,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:04,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:04,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809327975] [2024-11-11 21:44:04,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809327975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:04,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:04,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:44:04,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079284198] [2024-11-11 21:44:04,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:04,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:44:04,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:04,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:44:04,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:44:04,259 INFO L87 Difference]: Start difference. First operand 4251 states and 6501 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) [2024-11-11 21:44:04,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:04,406 INFO L93 Difference]: Finished difference Result 8439 states and 12936 transitions. [2024-11-11 21:44:04,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:44:04,407 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 [2024-11-11 21:44:04,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:04,420 INFO L225 Difference]: With dead ends: 8439 [2024-11-11 21:44:04,423 INFO L226 Difference]: Without dead ends: 4251 [2024-11-11 21:44:04,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:44:04,429 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 604 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:04,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 163 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:44:04,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4251 states. [2024-11-11 21:44:04,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4251 to 4251. [2024-11-11 21:44:04,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 4250 states have (on average 1.515294117647059) internal successors, (6440), 4250 states have internal predecessors, (6440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:04,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 6440 transitions. [2024-11-11 21:44:04,524 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 6440 transitions. Word has length 96 [2024-11-11 21:44:04,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:04,525 INFO L471 AbstractCegarLoop]: Abstraction has 4251 states and 6440 transitions. [2024-11-11 21:44:04,525 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) [2024-11-11 21:44:04,525 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 6440 transitions. [2024-11-11 21:44:04,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-11 21:44:04,526 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:04,526 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:04,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 21:44:04,527 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:04,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:04,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1248287654, now seen corresponding path program 1 times [2024-11-11 21:44:04,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:04,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35697475] [2024-11-11 21:44:04,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:04,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:04,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:04,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:04,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35697475] [2024-11-11 21:44:04,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35697475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:04,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:04,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:44:04,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398372564] [2024-11-11 21:44:04,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:04,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:44:04,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:04,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:44:04,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:44:04,633 INFO L87 Difference]: Start difference. First operand 4251 states and 6440 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) [2024-11-11 21:44:04,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:04,784 INFO L93 Difference]: Finished difference Result 8443 states and 12819 transitions. [2024-11-11 21:44:04,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:44:04,785 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 [2024-11-11 21:44:04,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:04,793 INFO L225 Difference]: With dead ends: 8443 [2024-11-11 21:44:04,794 INFO L226 Difference]: Without dead ends: 4251 [2024-11-11 21:44:04,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:44:04,800 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 609 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:04,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 155 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:44:04,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4251 states. [2024-11-11 21:44:04,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4251 to 4251. [2024-11-11 21:44:04,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 4250 states have (on average 1.5009411764705882) internal successors, (6379), 4250 states have internal predecessors, (6379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:04,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 6379 transitions. [2024-11-11 21:44:04,870 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 6379 transitions. Word has length 97 [2024-11-11 21:44:04,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:04,870 INFO L471 AbstractCegarLoop]: Abstraction has 4251 states and 6379 transitions. [2024-11-11 21:44:04,870 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) [2024-11-11 21:44:04,871 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 6379 transitions. [2024-11-11 21:44:04,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-11 21:44:04,872 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:04,872 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:04,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 21:44:04,873 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:04,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:04,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1071880717, now seen corresponding path program 1 times [2024-11-11 21:44:04,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:04,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835351216] [2024-11-11 21:44:04,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:04,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:05,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:05,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:05,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835351216] [2024-11-11 21:44:05,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835351216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:05,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:05,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:44:05,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214004726] [2024-11-11 21:44:05,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:05,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:44:05,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:05,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:44:05,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:44:05,034 INFO L87 Difference]: Start difference. First operand 4251 states and 6379 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) [2024-11-11 21:44:05,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:05,193 INFO L93 Difference]: Finished difference Result 8447 states and 12702 transitions. [2024-11-11 21:44:05,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:44:05,194 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 [2024-11-11 21:44:05,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:05,202 INFO L225 Difference]: With dead ends: 8447 [2024-11-11 21:44:05,202 INFO L226 Difference]: Without dead ends: 4251 [2024-11-11 21:44:05,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:44:05,208 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 614 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:05,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 147 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:44:05,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4251 states. [2024-11-11 21:44:05,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4251 to 4251. [2024-11-11 21:44:05,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 4250 states have (on average 1.4865882352941175) internal successors, (6318), 4250 states have internal predecessors, (6318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:05,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 6318 transitions. [2024-11-11 21:44:05,299 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 6318 transitions. Word has length 98 [2024-11-11 21:44:05,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:05,299 INFO L471 AbstractCegarLoop]: Abstraction has 4251 states and 6318 transitions. [2024-11-11 21:44:05,299 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) [2024-11-11 21:44:05,300 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 6318 transitions. [2024-11-11 21:44:05,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-11 21:44:05,301 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:05,301 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:05,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 21:44:05,301 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:05,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:05,302 INFO L85 PathProgramCache]: Analyzing trace with hash -2092778770, now seen corresponding path program 1 times [2024-11-11 21:44:05,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:05,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549269876] [2024-11-11 21:44:05,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:05,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:05,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:05,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:05,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549269876] [2024-11-11 21:44:05,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549269876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:05,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:05,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:44:05,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611941666] [2024-11-11 21:44:05,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:05,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:44:05,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:05,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:44:05,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:44:05,432 INFO L87 Difference]: Start difference. First operand 4251 states and 6318 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 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) [2024-11-11 21:44:05,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:05,581 INFO L93 Difference]: Finished difference Result 8435 states and 12568 transitions. [2024-11-11 21:44:05,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:44:05,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 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 [2024-11-11 21:44:05,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:05,589 INFO L225 Difference]: With dead ends: 8435 [2024-11-11 21:44:05,589 INFO L226 Difference]: Without dead ends: 4251 [2024-11-11 21:44:05,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:44:05,600 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 572 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:05,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 171 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:44:05,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4251 states. [2024-11-11 21:44:05,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4251 to 4251. [2024-11-11 21:44:05,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 4250 states have (on average 1.472235294117647) internal successors, (6257), 4250 states have internal predecessors, (6257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:05,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 6257 transitions. [2024-11-11 21:44:05,673 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 6257 transitions. Word has length 99 [2024-11-11 21:44:05,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:05,673 INFO L471 AbstractCegarLoop]: Abstraction has 4251 states and 6257 transitions. [2024-11-11 21:44:05,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 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) [2024-11-11 21:44:05,674 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 6257 transitions. [2024-11-11 21:44:05,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-11 21:44:05,676 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:05,676 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:05,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 21:44:05,676 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:05,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:05,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1190401161, now seen corresponding path program 1 times [2024-11-11 21:44:05,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:05,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519318340] [2024-11-11 21:44:05,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:05,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:06,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:06,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:06,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519318340] [2024-11-11 21:44:06,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519318340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:06,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:06,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-11 21:44:06,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925038400] [2024-11-11 21:44:06,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:06,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-11 21:44:06,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:06,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-11 21:44:06,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-11 21:44:06,257 INFO L87 Difference]: Start difference. First operand 4251 states and 6257 transitions. Second operand has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 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) [2024-11-11 21:44:06,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:06,981 INFO L93 Difference]: Finished difference Result 12448 states and 18301 transitions. [2024-11-11 21:44:06,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:44:06,982 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 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 [2024-11-11 21:44:06,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:06,997 INFO L225 Difference]: With dead ends: 12448 [2024-11-11 21:44:06,997 INFO L226 Difference]: Without dead ends: 8432 [2024-11-11 21:44:07,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-11 21:44:07,004 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 720 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:07,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 675 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 21:44:07,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8432 states. [2024-11-11 21:44:07,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8432 to 4251. [2024-11-11 21:44:07,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 4250 states have (on average 1.4696470588235293) internal successors, (6246), 4250 states have internal predecessors, (6246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:07,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 6246 transitions. [2024-11-11 21:44:07,107 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 6246 transitions. Word has length 100 [2024-11-11 21:44:07,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:07,107 INFO L471 AbstractCegarLoop]: Abstraction has 4251 states and 6246 transitions. [2024-11-11 21:44:07,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 12 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) [2024-11-11 21:44:07,108 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 6246 transitions. [2024-11-11 21:44:07,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 21:44:07,109 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:07,109 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:07,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 21:44:07,110 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:07,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:07,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1807427751, now seen corresponding path program 1 times [2024-11-11 21:44:07,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:07,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112404078] [2024-11-11 21:44:07,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:07,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:07,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:07,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:07,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112404078] [2024-11-11 21:44:07,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112404078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:07,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:07,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 21:44:07,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754108123] [2024-11-11 21:44:07,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:07,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 21:44:07,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:07,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 21:44:07,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 21:44:07,548 INFO L87 Difference]: Start difference. First operand 4251 states and 6246 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2024-11-11 21:44:07,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:07,975 INFO L93 Difference]: Finished difference Result 12257 states and 18055 transitions. [2024-11-11 21:44:07,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 21:44:07,976 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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 [2024-11-11 21:44:07,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:07,991 INFO L225 Difference]: With dead ends: 12257 [2024-11-11 21:44:07,992 INFO L226 Difference]: Without dead ends: 8212 [2024-11-11 21:44:07,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-11 21:44:08,000 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 1158 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:08,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 546 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 21:44:08,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8212 states. [2024-11-11 21:44:08,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8212 to 4251. [2024-11-11 21:44:08,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 4250 states have (on average 1.4694117647058824) internal successors, (6245), 4250 states have internal predecessors, (6245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:08,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 6245 transitions. [2024-11-11 21:44:08,096 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 6245 transitions. Word has length 101 [2024-11-11 21:44:08,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:08,096 INFO L471 AbstractCegarLoop]: Abstraction has 4251 states and 6245 transitions. [2024-11-11 21:44:08,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 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) [2024-11-11 21:44:08,097 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 6245 transitions. [2024-11-11 21:44:08,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 21:44:08,098 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:08,098 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:08,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 21:44:08,098 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:08,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:08,099 INFO L85 PathProgramCache]: Analyzing trace with hash 456063953, now seen corresponding path program 1 times [2024-11-11 21:44:08,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:08,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327098458] [2024-11-11 21:44:08,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:08,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:08,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:08,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:08,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327098458] [2024-11-11 21:44:08,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327098458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:08,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:08,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-11 21:44:08,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949063308] [2024-11-11 21:44:08,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:08,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-11 21:44:08,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:08,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-11 21:44:08,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-11 21:44:08,655 INFO L87 Difference]: Start difference. First operand 4251 states and 6245 transitions. Second operand has 14 states, 14 states have (on average 7.214285714285714) internal successors, (101), 13 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) [2024-11-11 21:44:09,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:09,463 INFO L93 Difference]: Finished difference Result 12715 states and 18592 transitions. [2024-11-11 21:44:09,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:44:09,464 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.214285714285714) internal successors, (101), 13 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 [2024-11-11 21:44:09,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:09,478 INFO L225 Difference]: With dead ends: 12715 [2024-11-11 21:44:09,478 INFO L226 Difference]: Without dead ends: 8666 [2024-11-11 21:44:09,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2024-11-11 21:44:09,485 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 1289 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:09,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 989 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 21:44:09,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8666 states. [2024-11-11 21:44:09,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8666 to 4260. [2024-11-11 21:44:09,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4260 states, 4259 states have (on average 1.4684198168584175) internal successors, (6254), 4259 states have internal predecessors, (6254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:09,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4260 states to 4260 states and 6254 transitions. [2024-11-11 21:44:09,583 INFO L78 Accepts]: Start accepts. Automaton has 4260 states and 6254 transitions. Word has length 101 [2024-11-11 21:44:09,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:09,584 INFO L471 AbstractCegarLoop]: Abstraction has 4260 states and 6254 transitions. [2024-11-11 21:44:09,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.214285714285714) internal successors, (101), 13 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) [2024-11-11 21:44:09,584 INFO L276 IsEmpty]: Start isEmpty. Operand 4260 states and 6254 transitions. [2024-11-11 21:44:09,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 21:44:09,586 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:09,586 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:09,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 21:44:09,586 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:09,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:09,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1178201806, now seen corresponding path program 1 times [2024-11-11 21:44:09,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:09,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628028100] [2024-11-11 21:44:09,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:09,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:10,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:10,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:10,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628028100] [2024-11-11 21:44:10,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628028100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:10,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:10,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 21:44:10,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703809344] [2024-11-11 21:44:10,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:10,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 21:44:10,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:10,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 21:44:10,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 21:44:10,040 INFO L87 Difference]: Start difference. First operand 4260 states and 6254 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) [2024-11-11 21:44:10,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:10,627 INFO L93 Difference]: Finished difference Result 12577 states and 18472 transitions. [2024-11-11 21:44:10,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:44:10,628 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 [2024-11-11 21:44:10,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:10,644 INFO L225 Difference]: With dead ends: 12577 [2024-11-11 21:44:10,645 INFO L226 Difference]: Without dead ends: 8486 [2024-11-11 21:44:10,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-11 21:44:10,652 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 1063 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:10,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 750 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 21:44:10,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8486 states. [2024-11-11 21:44:10,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8486 to 4251. [2024-11-11 21:44:10,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 4250 states have (on average 1.468) internal successors, (6239), 4250 states have internal predecessors, (6239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:10,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 6239 transitions. [2024-11-11 21:44:10,746 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 6239 transitions. Word has length 102 [2024-11-11 21:44:10,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:10,746 INFO L471 AbstractCegarLoop]: Abstraction has 4251 states and 6239 transitions. [2024-11-11 21:44:10,746 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) [2024-11-11 21:44:10,746 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 6239 transitions. [2024-11-11 21:44:10,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 21:44:10,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:10,748 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:10,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 21:44:10,748 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:10,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:10,748 INFO L85 PathProgramCache]: Analyzing trace with hash -92490946, now seen corresponding path program 1 times [2024-11-11 21:44:10,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:10,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157058469] [2024-11-11 21:44:10,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:10,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:11,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:11,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:11,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157058469] [2024-11-11 21:44:11,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157058469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:11,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:11,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-11 21:44:11,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301983144] [2024-11-11 21:44:11,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:11,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-11 21:44:11,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:11,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-11 21:44:11,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 21:44:11,318 INFO L87 Difference]: Start difference. First operand 4251 states and 6239 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 11 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) [2024-11-11 21:44:12,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:12,455 INFO L93 Difference]: Finished difference Result 10631 states and 15574 transitions. [2024-11-11 21:44:12,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-11 21:44:12,456 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 11 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 [2024-11-11 21:44:12,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:12,475 INFO L225 Difference]: With dead ends: 10631 [2024-11-11 21:44:12,476 INFO L226 Difference]: Without dead ends: 6525 [2024-11-11 21:44:12,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2024-11-11 21:44:12,483 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 929 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:12,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 1493 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 21:44:12,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6525 states. [2024-11-11 21:44:12,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6525 to 4251. [2024-11-11 21:44:12,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 4250 states have (on average 1.4672941176470589) internal successors, (6236), 4250 states have internal predecessors, (6236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:12,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 6236 transitions. [2024-11-11 21:44:12,562 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 6236 transitions. Word has length 102 [2024-11-11 21:44:12,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:12,563 INFO L471 AbstractCegarLoop]: Abstraction has 4251 states and 6236 transitions. [2024-11-11 21:44:12,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 11 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) [2024-11-11 21:44:12,563 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 6236 transitions. [2024-11-11 21:44:12,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-11 21:44:12,565 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:12,565 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:12,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 21:44:12,565 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:12,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:12,566 INFO L85 PathProgramCache]: Analyzing trace with hash 755224923, now seen corresponding path program 1 times [2024-11-11 21:44:12,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:12,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704424743] [2024-11-11 21:44:12,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:12,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:12,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:12,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:12,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704424743] [2024-11-11 21:44:12,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704424743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:12,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:12,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 21:44:12,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035195312] [2024-11-11 21:44:12,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:12,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 21:44:12,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:12,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 21:44:12,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 21:44:12,952 INFO L87 Difference]: Start difference. First operand 4251 states and 6236 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) [2024-11-11 21:44:13,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:13,609 INFO L93 Difference]: Finished difference Result 12523 states and 18382 transitions. [2024-11-11 21:44:13,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:44:13,610 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 [2024-11-11 21:44:13,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:13,625 INFO L225 Difference]: With dead ends: 12523 [2024-11-11 21:44:13,626 INFO L226 Difference]: Without dead ends: 8462 [2024-11-11 21:44:13,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-11 21:44:13,633 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 642 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:13,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 942 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 21:44:13,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8462 states. [2024-11-11 21:44:13,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8462 to 4251. [2024-11-11 21:44:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 4250 states have (on average 1.4651764705882353) internal successors, (6227), 4250 states have internal predecessors, (6227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:13,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 6227 transitions. [2024-11-11 21:44:13,720 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 6227 transitions. Word has length 103 [2024-11-11 21:44:13,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:13,721 INFO L471 AbstractCegarLoop]: Abstraction has 4251 states and 6227 transitions. [2024-11-11 21:44:13,721 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) [2024-11-11 21:44:13,721 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 6227 transitions. [2024-11-11 21:44:13,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-11 21:44:13,722 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:13,722 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:13,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-11 21:44:13,723 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:13,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:13,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1394810664, now seen corresponding path program 1 times [2024-11-11 21:44:13,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:13,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587488535] [2024-11-11 21:44:13,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:13,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:14,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:14,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:14,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587488535] [2024-11-11 21:44:14,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587488535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:14,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:14,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 21:44:14,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078414935] [2024-11-11 21:44:14,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:14,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 21:44:14,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:14,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 21:44:14,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 21:44:14,094 INFO L87 Difference]: Start difference. First operand 4251 states and 6227 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 9 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) [2024-11-11 21:44:14,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:14,788 INFO L93 Difference]: Finished difference Result 12348 states and 18111 transitions. [2024-11-11 21:44:14,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 21:44:14,790 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 9 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 [2024-11-11 21:44:14,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:14,804 INFO L225 Difference]: With dead ends: 12348 [2024-11-11 21:44:14,804 INFO L226 Difference]: Without dead ends: 8387 [2024-11-11 21:44:14,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-11 21:44:14,813 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 459 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:14,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 904 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 21:44:14,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8387 states. [2024-11-11 21:44:14,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8387 to 4251. [2024-11-11 21:44:14,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 4250 states have (on average 1.4621176470588235) internal successors, (6214), 4250 states have internal predecessors, (6214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:14,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 6214 transitions. [2024-11-11 21:44:14,900 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 6214 transitions. Word has length 104 [2024-11-11 21:44:14,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:14,901 INFO L471 AbstractCegarLoop]: Abstraction has 4251 states and 6214 transitions. [2024-11-11 21:44:14,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 9 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) [2024-11-11 21:44:14,901 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 6214 transitions. [2024-11-11 21:44:14,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-11 21:44:14,902 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:14,902 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:14,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-11 21:44:14,903 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:14,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:14,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1475383422, now seen corresponding path program 1 times [2024-11-11 21:44:14,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:14,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8553271] [2024-11-11 21:44:14,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:14,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:15,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:15,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:15,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8553271] [2024-11-11 21:44:15,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8553271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:15,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:15,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-11 21:44:15,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944562702] [2024-11-11 21:44:15,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:15,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-11 21:44:15,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:15,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-11 21:44:15,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-11 21:44:15,641 INFO L87 Difference]: Start difference. First operand 4251 states and 6214 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) [2024-11-11 21:44:16,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:16,550 INFO L93 Difference]: Finished difference Result 10516 states and 15429 transitions. [2024-11-11 21:44:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-11 21:44:16,551 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 [2024-11-11 21:44:16,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:16,562 INFO L225 Difference]: With dead ends: 10516 [2024-11-11 21:44:16,563 INFO L226 Difference]: Without dead ends: 9383 [2024-11-11 21:44:16,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-11 21:44:16,568 INFO L435 NwaCegarLoop]: 573 mSDtfsCounter, 1191 mSDsluCounter, 3876 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 4449 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:16,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 4449 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 21:44:16,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9383 states. [2024-11-11 21:44:16,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9383 to 4199. [2024-11-11 21:44:16,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4199 states, 4198 states have (on average 1.4623630300142925) internal successors, (6139), 4198 states have internal predecessors, (6139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:16,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4199 states to 4199 states and 6139 transitions. [2024-11-11 21:44:16,660 INFO L78 Accepts]: Start accepts. Automaton has 4199 states and 6139 transitions. Word has length 105 [2024-11-11 21:44:16,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:16,661 INFO L471 AbstractCegarLoop]: Abstraction has 4199 states and 6139 transitions. [2024-11-11 21:44:16,661 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) [2024-11-11 21:44:16,661 INFO L276 IsEmpty]: Start isEmpty. Operand 4199 states and 6139 transitions. [2024-11-11 21:44:16,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-11 21:44:16,662 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:16,662 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:16,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-11 21:44:16,663 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:16,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:16,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1499355903, now seen corresponding path program 1 times [2024-11-11 21:44:16,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:16,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712305938] [2024-11-11 21:44:16,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:16,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:17,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:17,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:17,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712305938] [2024-11-11 21:44:17,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712305938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:17,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:17,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-11 21:44:17,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750386914] [2024-11-11 21:44:17,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:17,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-11 21:44:17,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:17,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-11 21:44:17,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-11 21:44:17,375 INFO L87 Difference]: Start difference. First operand 4199 states and 6139 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) [2024-11-11 21:44:18,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:18,276 INFO L93 Difference]: Finished difference Result 17323 states and 25475 transitions. [2024-11-11 21:44:18,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-11 21:44:18,277 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 [2024-11-11 21:44:18,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:18,293 INFO L225 Difference]: With dead ends: 17323 [2024-11-11 21:44:18,293 INFO L226 Difference]: Without dead ends: 16225 [2024-11-11 21:44:18,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-11 21:44:18,300 INFO L435 NwaCegarLoop]: 532 mSDtfsCounter, 797 mSDsluCounter, 4167 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 4699 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:18,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 4699 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 21:44:18,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16225 states. [2024-11-11 21:44:18,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16225 to 4172. [2024-11-11 21:44:18,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4172 states, 4171 states have (on average 1.4615200191800528) internal successors, (6096), 4171 states have internal predecessors, (6096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:18,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4172 states to 4172 states and 6096 transitions. [2024-11-11 21:44:18,453 INFO L78 Accepts]: Start accepts. Automaton has 4172 states and 6096 transitions. Word has length 105 [2024-11-11 21:44:18,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:18,454 INFO L471 AbstractCegarLoop]: Abstraction has 4172 states and 6096 transitions. [2024-11-11 21:44:18,454 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) [2024-11-11 21:44:18,454 INFO L276 IsEmpty]: Start isEmpty. Operand 4172 states and 6096 transitions. [2024-11-11 21:44:18,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-11 21:44:18,455 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:18,455 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:18,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-11 21:44:18,455 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:18,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:18,456 INFO L85 PathProgramCache]: Analyzing trace with hash -285463969, now seen corresponding path program 1 times [2024-11-11 21:44:18,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:18,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057203606] [2024-11-11 21:44:18,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:18,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:20,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:20,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:20,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057203606] [2024-11-11 21:44:20,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057203606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:20,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:20,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2024-11-11 21:44:20,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641025177] [2024-11-11 21:44:20,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:20,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-11 21:44:20,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:20,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-11 21:44:20,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=800, Unknown=0, NotChecked=0, Total=870 [2024-11-11 21:44:20,868 INFO L87 Difference]: Start difference. First operand 4172 states and 6096 transitions. Second operand has 30 states, 30 states have (on average 3.5) internal successors, (105), 30 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) [2024-11-11 21:44:25,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:25,158 INFO L93 Difference]: Finished difference Result 7442 states and 10891 transitions. [2024-11-11 21:44:25,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-11 21:44:25,159 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.5) internal successors, (105), 30 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 [2024-11-11 21:44:25,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:25,165 INFO L225 Difference]: With dead ends: 7442 [2024-11-11 21:44:25,166 INFO L226 Difference]: Without dead ends: 6386 [2024-11-11 21:44:25,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=412, Invalid=2450, Unknown=0, NotChecked=0, Total=2862 [2024-11-11 21:44:25,169 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 2219 mSDsluCounter, 8334 mSDsCounter, 0 mSdLazyCounter, 4476 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2219 SdHoareTripleChecker+Valid, 8782 SdHoareTripleChecker+Invalid, 4485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 4476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:25,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2219 Valid, 8782 Invalid, 4485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 4476 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-11 21:44:25,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6386 states. [2024-11-11 21:44:25,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6386 to 4217. [2024-11-11 21:44:25,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4217 states, 4216 states have (on average 1.4594402277039848) internal successors, (6153), 4216 states have internal predecessors, (6153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:25,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4217 states to 4217 states and 6153 transitions. [2024-11-11 21:44:25,235 INFO L78 Accepts]: Start accepts. Automaton has 4217 states and 6153 transitions. Word has length 105 [2024-11-11 21:44:25,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:25,236 INFO L471 AbstractCegarLoop]: Abstraction has 4217 states and 6153 transitions. [2024-11-11 21:44:25,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.5) internal successors, (105), 30 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) [2024-11-11 21:44:25,236 INFO L276 IsEmpty]: Start isEmpty. Operand 4217 states and 6153 transitions. [2024-11-11 21:44:25,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-11 21:44:25,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:25,237 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:25,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-11 21:44:25,237 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:25,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:25,238 INFO L85 PathProgramCache]: Analyzing trace with hash -344221858, now seen corresponding path program 1 times [2024-11-11 21:44:25,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:25,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303353280] [2024-11-11 21:44:25,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:25,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:25,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:25,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:25,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303353280] [2024-11-11 21:44:25,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303353280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:25,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:25,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-11 21:44:25,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302816827] [2024-11-11 21:44:25,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:25,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-11 21:44:25,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:25,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-11 21:44:25,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-11 21:44:25,818 INFO L87 Difference]: Start difference. First operand 4217 states and 6153 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) [2024-11-11 21:44:26,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:26,335 INFO L93 Difference]: Finished difference Result 9305 states and 13648 transitions. [2024-11-11 21:44:26,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:44:26,336 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 [2024-11-11 21:44:26,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:26,342 INFO L225 Difference]: With dead ends: 9305 [2024-11-11 21:44:26,343 INFO L226 Difference]: Without dead ends: 8177 [2024-11-11 21:44:26,345 INFO L434 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 [2024-11-11 21:44:26,346 INFO L435 NwaCegarLoop]: 305 mSDtfsCounter, 808 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 2149 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:26,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 2149 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:44:26,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8177 states. [2024-11-11 21:44:26,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8177 to 4149. [2024-11-11 21:44:26,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4149 states, 4148 states have (on average 1.4611861137897781) internal successors, (6061), 4148 states have internal predecessors, (6061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:26,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4149 states to 4149 states and 6061 transitions. [2024-11-11 21:44:26,424 INFO L78 Accepts]: Start accepts. Automaton has 4149 states and 6061 transitions. Word has length 105 [2024-11-11 21:44:26,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:26,425 INFO L471 AbstractCegarLoop]: Abstraction has 4149 states and 6061 transitions. [2024-11-11 21:44:26,425 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) [2024-11-11 21:44:26,425 INFO L276 IsEmpty]: Start isEmpty. Operand 4149 states and 6061 transitions. [2024-11-11 21:44:26,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-11 21:44:26,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:26,426 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:26,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-11 21:44:26,426 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:26,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:26,427 INFO L85 PathProgramCache]: Analyzing trace with hash 716052892, now seen corresponding path program 1 times [2024-11-11 21:44:26,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:26,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523878413] [2024-11-11 21:44:26,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:26,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:27,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:27,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:27,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523878413] [2024-11-11 21:44:27,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523878413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:27,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:27,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-11 21:44:27,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969937274] [2024-11-11 21:44:27,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:27,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-11 21:44:27,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:27,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-11 21:44:27,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-11 21:44:27,517 INFO L87 Difference]: Start difference. First operand 4149 states and 6061 transitions. Second operand has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 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) [2024-11-11 21:44:28,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:28,545 INFO L93 Difference]: Finished difference Result 6289 states and 9206 transitions. [2024-11-11 21:44:28,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-11 21:44:28,546 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 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 [2024-11-11 21:44:28,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:28,551 INFO L225 Difference]: With dead ends: 6289 [2024-11-11 21:44:28,552 INFO L226 Difference]: Without dead ends: 5208 [2024-11-11 21:44:28,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2024-11-11 21:44:28,555 INFO L435 NwaCegarLoop]: 399 mSDtfsCounter, 1047 mSDsluCounter, 3428 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 3827 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:28,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 3827 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 21:44:28,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5208 states. [2024-11-11 21:44:28,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5208 to 4149. [2024-11-11 21:44:28,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4149 states, 4148 states have (on average 1.4609450337512053) internal successors, (6060), 4148 states have internal predecessors, (6060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:28,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4149 states to 4149 states and 6060 transitions. [2024-11-11 21:44:28,614 INFO L78 Accepts]: Start accepts. Automaton has 4149 states and 6060 transitions. Word has length 105 [2024-11-11 21:44:28,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:28,615 INFO L471 AbstractCegarLoop]: Abstraction has 4149 states and 6060 transitions. [2024-11-11 21:44:28,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 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) [2024-11-11 21:44:28,615 INFO L276 IsEmpty]: Start isEmpty. Operand 4149 states and 6060 transitions. [2024-11-11 21:44:28,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-11 21:44:28,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:28,616 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:28,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-11 21:44:28,617 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:28,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:28,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1710560398, now seen corresponding path program 1 times [2024-11-11 21:44:28,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:28,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890311007] [2024-11-11 21:44:28,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:28,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:30,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:30,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:30,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890311007] [2024-11-11 21:44:30,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890311007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:30,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:30,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2024-11-11 21:44:30,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887790484] [2024-11-11 21:44:30,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:30,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-11 21:44:30,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:30,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-11 21:44:30,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2024-11-11 21:44:30,909 INFO L87 Difference]: Start difference. First operand 4149 states and 6060 transitions. Second operand has 28 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 28 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) [2024-11-11 21:44:35,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:35,163 INFO L93 Difference]: Finished difference Result 10816 states and 15869 transitions. [2024-11-11 21:44:35,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-11 21:44:35,164 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 28 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 [2024-11-11 21:44:35,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:35,175 INFO L225 Difference]: With dead ends: 10816 [2024-11-11 21:44:35,176 INFO L226 Difference]: Without dead ends: 10287 [2024-11-11 21:44:35,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=393, Invalid=2469, Unknown=0, NotChecked=0, Total=2862 [2024-11-11 21:44:35,180 INFO L435 NwaCegarLoop]: 550 mSDtfsCounter, 2004 mSDsluCounter, 8604 mSDsCounter, 0 mSdLazyCounter, 3768 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2004 SdHoareTripleChecker+Valid, 9154 SdHoareTripleChecker+Invalid, 3774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:35,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2004 Valid, 9154 Invalid, 3774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3768 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-11 21:44:35,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10287 states. [2024-11-11 21:44:35,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10287 to 4144. [2024-11-11 21:44:35,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4144 states, 4143 states have (on average 1.461018585566015) internal successors, (6053), 4143 states have internal predecessors, (6053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:35,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4144 states to 4144 states and 6053 transitions. [2024-11-11 21:44:35,293 INFO L78 Accepts]: Start accepts. Automaton has 4144 states and 6053 transitions. Word has length 106 [2024-11-11 21:44:35,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:35,294 INFO L471 AbstractCegarLoop]: Abstraction has 4144 states and 6053 transitions. [2024-11-11 21:44:35,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.7857142857142856) internal successors, (106), 28 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) [2024-11-11 21:44:35,294 INFO L276 IsEmpty]: Start isEmpty. Operand 4144 states and 6053 transitions. [2024-11-11 21:44:35,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-11 21:44:35,295 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:35,296 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:35,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-11 21:44:35,296 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:35,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:35,297 INFO L85 PathProgramCache]: Analyzing trace with hash 392357586, now seen corresponding path program 1 times [2024-11-11 21:44:35,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:35,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463260176] [2024-11-11 21:44:35,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:35,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:37,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:37,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:37,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463260176] [2024-11-11 21:44:37,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463260176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:37,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:37,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2024-11-11 21:44:37,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741814817] [2024-11-11 21:44:37,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:37,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-11 21:44:37,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:37,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-11 21:44:37,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1232, Unknown=0, NotChecked=0, Total=1332 [2024-11-11 21:44:37,505 INFO L87 Difference]: Start difference. First operand 4144 states and 6053 transitions. Second operand has 37 states, 37 states have (on average 2.864864864864865) internal successors, (106), 37 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) [2024-11-11 21:44:43,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:43,538 INFO L93 Difference]: Finished difference Result 11326 states and 16613 transitions. [2024-11-11 21:44:43,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-11 21:44:43,539 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.864864864864865) internal successors, (106), 37 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 [2024-11-11 21:44:43,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:43,547 INFO L225 Difference]: With dead ends: 11326 [2024-11-11 21:44:43,547 INFO L226 Difference]: Without dead ends: 7376 [2024-11-11 21:44:43,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 757 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=681, Invalid=4149, Unknown=0, NotChecked=0, Total=4830 [2024-11-11 21:44:43,556 INFO L435 NwaCegarLoop]: 442 mSDtfsCounter, 2804 mSDsluCounter, 8919 mSDsCounter, 0 mSdLazyCounter, 7005 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2804 SdHoareTripleChecker+Valid, 9361 SdHoareTripleChecker+Invalid, 7030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 7005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:43,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2804 Valid, 9361 Invalid, 7030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 7005 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-11 21:44:43,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7376 states. [2024-11-11 21:44:43,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7376 to 4157. [2024-11-11 21:44:43,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4157 states, 4156 states have (on average 1.4600577478344563) internal successors, (6068), 4156 states have internal predecessors, (6068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:43,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4157 states to 4157 states and 6068 transitions. [2024-11-11 21:44:43,629 INFO L78 Accepts]: Start accepts. Automaton has 4157 states and 6068 transitions. Word has length 106 [2024-11-11 21:44:43,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:43,630 INFO L471 AbstractCegarLoop]: Abstraction has 4157 states and 6068 transitions. [2024-11-11 21:44:43,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.864864864864865) internal successors, (106), 37 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) [2024-11-11 21:44:43,630 INFO L276 IsEmpty]: Start isEmpty. Operand 4157 states and 6068 transitions. [2024-11-11 21:44:43,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-11 21:44:43,631 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:43,631 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:43,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-11 21:44:43,632 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:43,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:43,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1513443443, now seen corresponding path program 1 times [2024-11-11 21:44:43,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:43,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347306099] [2024-11-11 21:44:43,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:43,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:44,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:44,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:44,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347306099] [2024-11-11 21:44:44,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347306099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:44,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:44,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-11 21:44:44,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003432562] [2024-11-11 21:44:44,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:44,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-11 21:44:44,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:44,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-11 21:44:44,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-11 21:44:44,127 INFO L87 Difference]: Start difference. First operand 4157 states and 6068 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) [2024-11-11 21:44:44,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:44,490 INFO L93 Difference]: Finished difference Result 9163 states and 13454 transitions. [2024-11-11 21:44:44,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 21:44:44,491 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 [2024-11-11 21:44:44,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:44,503 INFO L225 Difference]: With dead ends: 9163 [2024-11-11 21:44:44,503 INFO L226 Difference]: Without dead ends: 8077 [2024-11-11 21:44:44,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-11 21:44:44,510 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 867 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:44,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1001 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 21:44:44,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8077 states. [2024-11-11 21:44:44,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8077 to 4125. [2024-11-11 21:44:44,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 4124 states have (on average 1.4614451988360815) internal successors, (6027), 4124 states have internal predecessors, (6027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:44,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 6027 transitions. [2024-11-11 21:44:44,586 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 6027 transitions. Word has length 106 [2024-11-11 21:44:44,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:44,586 INFO L471 AbstractCegarLoop]: Abstraction has 4125 states and 6027 transitions. [2024-11-11 21:44:44,586 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) [2024-11-11 21:44:44,587 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 6027 transitions. [2024-11-11 21:44:44,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-11 21:44:44,587 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:44,588 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:44,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-11 21:44:44,588 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:44,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:44,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1850906867, now seen corresponding path program 1 times [2024-11-11 21:44:44,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:44,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157848689] [2024-11-11 21:44:44,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:44,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:45,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:45,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157848689] [2024-11-11 21:44:45,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157848689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:45,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:45,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-11 21:44:45,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271572254] [2024-11-11 21:44:45,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:45,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-11 21:44:45,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:45,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-11 21:44:45,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-11 21:44:45,200 INFO L87 Difference]: Start difference. First operand 4125 states and 6027 transitions. Second operand has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 14 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) [2024-11-11 21:44:45,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:45,928 INFO L93 Difference]: Finished difference Result 17086 states and 25140 transitions. [2024-11-11 21:44:45,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-11 21:44:45,928 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 14 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 [2024-11-11 21:44:45,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:45,949 INFO L225 Difference]: With dead ends: 17086 [2024-11-11 21:44:45,949 INFO L226 Difference]: Without dead ends: 16015 [2024-11-11 21:44:45,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-11 21:44:45,958 INFO L435 NwaCegarLoop]: 505 mSDtfsCounter, 1111 mSDsluCounter, 3374 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 3879 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:45,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 3879 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-11 21:44:45,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16015 states. [2024-11-11 21:44:46,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16015 to 4107. [2024-11-11 21:44:46,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4107 states, 4106 states have (on average 1.4617632732586459) internal successors, (6002), 4106 states have internal predecessors, (6002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:46,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4107 states to 4107 states and 6002 transitions. [2024-11-11 21:44:46,073 INFO L78 Accepts]: Start accepts. Automaton has 4107 states and 6002 transitions. Word has length 106 [2024-11-11 21:44:46,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:46,074 INFO L471 AbstractCegarLoop]: Abstraction has 4107 states and 6002 transitions. [2024-11-11 21:44:46,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 14 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) [2024-11-11 21:44:46,074 INFO L276 IsEmpty]: Start isEmpty. Operand 4107 states and 6002 transitions. [2024-11-11 21:44:46,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-11 21:44:46,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:46,075 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:46,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-11 21:44:46,075 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:46,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:46,076 INFO L85 PathProgramCache]: Analyzing trace with hash -246539873, now seen corresponding path program 1 times [2024-11-11 21:44:46,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:46,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565005983] [2024-11-11 21:44:46,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:46,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:46,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:46,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:46,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565005983] [2024-11-11 21:44:46,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565005983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:46,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:46,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 21:44:46,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771524286] [2024-11-11 21:44:46,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:46,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 21:44:46,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:46,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 21:44:46,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 21:44:46,285 INFO L87 Difference]: Start difference. First operand 4107 states and 6002 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:46,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:46,320 INFO L93 Difference]: Finished difference Result 4137 states and 6045 transitions. [2024-11-11 21:44:46,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 21:44:46,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-11-11 21:44:46,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:46,325 INFO L225 Difference]: With dead ends: 4137 [2024-11-11 21:44:46,325 INFO L226 Difference]: Without dead ends: 4135 [2024-11-11 21:44:46,327 INFO L434 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 [2024-11-11 21:44:46,328 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:46,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 845 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:44:46,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4135 states. [2024-11-11 21:44:46,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4135 to 4135. [2024-11-11 21:44:46,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4135 states, 4134 states have (on average 1.4547653604257378) internal successors, (6014), 4134 states have internal predecessors, (6014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:46,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4135 states to 4135 states and 6014 transitions. [2024-11-11 21:44:46,375 INFO L78 Accepts]: Start accepts. Automaton has 4135 states and 6014 transitions. Word has length 107 [2024-11-11 21:44:46,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:46,376 INFO L471 AbstractCegarLoop]: Abstraction has 4135 states and 6014 transitions. [2024-11-11 21:44:46,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:46,376 INFO L276 IsEmpty]: Start isEmpty. Operand 4135 states and 6014 transitions. [2024-11-11 21:44:46,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-11 21:44:46,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:46,377 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:46,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-11 21:44:46,378 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:46,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:46,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1041143963, now seen corresponding path program 1 times [2024-11-11 21:44:46,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:46,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909585024] [2024-11-11 21:44:46,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:46,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:46,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:46,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:46,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909585024] [2024-11-11 21:44:46,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909585024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:46,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:46,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 21:44:46,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733840491] [2024-11-11 21:44:46,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:46,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 21:44:46,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:46,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 21:44:46,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:44:46,530 INFO L87 Difference]: Start difference. First operand 4135 states and 6014 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:46,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:46,574 INFO L93 Difference]: Finished difference Result 9765 states and 14285 transitions. [2024-11-11 21:44:46,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 21:44:46,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-11-11 21:44:46,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:46,582 INFO L225 Difference]: With dead ends: 9765 [2024-11-11 21:44:46,582 INFO L226 Difference]: Without dead ends: 5789 [2024-11-11 21:44:46,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 21:44:46,587 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 105 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:46,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 606 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:44:46,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5789 states. [2024-11-11 21:44:46,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5789 to 5787. [2024-11-11 21:44:46,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5787 states, 5786 states have (on average 1.452989975803664) internal successors, (8407), 5786 states have internal predecessors, (8407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:46,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5787 states to 5787 states and 8407 transitions. [2024-11-11 21:44:46,657 INFO L78 Accepts]: Start accepts. Automaton has 5787 states and 8407 transitions. Word has length 107 [2024-11-11 21:44:46,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:46,658 INFO L471 AbstractCegarLoop]: Abstraction has 5787 states and 8407 transitions. [2024-11-11 21:44:46,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:46,658 INFO L276 IsEmpty]: Start isEmpty. Operand 5787 states and 8407 transitions. [2024-11-11 21:44:46,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-11 21:44:46,659 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:46,659 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:46,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-11 21:44:46,659 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:46,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:46,660 INFO L85 PathProgramCache]: Analyzing trace with hash -2030098530, now seen corresponding path program 1 times [2024-11-11 21:44:46,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:46,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909611384] [2024-11-11 21:44:46,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:46,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:47,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:47,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:47,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909611384] [2024-11-11 21:44:47,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909611384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:47,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:47,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-11 21:44:47,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611187330] [2024-11-11 21:44:47,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:47,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-11 21:44:47,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:47,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-11 21:44:47,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-11 21:44:47,208 INFO L87 Difference]: Start difference. First operand 5787 states and 8407 transitions. Second operand has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:47,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:47,791 INFO L93 Difference]: Finished difference Result 13002 states and 18958 transitions. [2024-11-11 21:44:47,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 21:44:47,792 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-11-11 21:44:47,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:47,807 INFO L225 Difference]: With dead ends: 13002 [2024-11-11 21:44:47,807 INFO L226 Difference]: Without dead ends: 11430 [2024-11-11 21:44:47,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-11 21:44:47,814 INFO L435 NwaCegarLoop]: 283 mSDtfsCounter, 912 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:47,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 1614 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:44:47,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11430 states. [2024-11-11 21:44:47,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11430 to 5774. [2024-11-11 21:44:47,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5774 states, 5773 states have (on average 1.453317166118136) internal successors, (8390), 5773 states have internal predecessors, (8390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:47,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5774 states to 5774 states and 8390 transitions. [2024-11-11 21:44:47,916 INFO L78 Accepts]: Start accepts. Automaton has 5774 states and 8390 transitions. Word has length 107 [2024-11-11 21:44:47,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:47,916 INFO L471 AbstractCegarLoop]: Abstraction has 5774 states and 8390 transitions. [2024-11-11 21:44:47,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:47,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5774 states and 8390 transitions. [2024-11-11 21:44:47,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-11 21:44:47,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:47,919 INFO L218 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, 1, 1] [2024-11-11 21:44:47,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-11 21:44:47,920 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:47,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:47,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1624576542, now seen corresponding path program 1 times [2024-11-11 21:44:47,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:47,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943597226] [2024-11-11 21:44:47,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:47,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:48,036 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:48,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:48,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943597226] [2024-11-11 21:44:48,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943597226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:48,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:48,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:44:48,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000625874] [2024-11-11 21:44:48,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:48,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:44:48,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:48,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:44:48,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:44:48,038 INFO L87 Difference]: Start difference. First operand 5774 states and 8390 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:48,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:48,107 INFO L93 Difference]: Finished difference Result 12012 states and 17513 transitions. [2024-11-11 21:44:48,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:44:48,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2024-11-11 21:44:48,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:48,117 INFO L225 Difference]: With dead ends: 12012 [2024-11-11 21:44:48,117 INFO L226 Difference]: Without dead ends: 8036 [2024-11-11 21:44:48,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:44:48,121 INFO L435 NwaCegarLoop]: 296 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, 472 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:48,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 472 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:44:48,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8036 states. [2024-11-11 21:44:48,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8036 to 7786. [2024-11-11 21:44:48,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7786 states, 7785 states have (on average 1.44791265253693) internal successors, (11272), 7785 states have internal predecessors, (11272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:48,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7786 states to 7786 states and 11272 transitions. [2024-11-11 21:44:48,208 INFO L78 Accepts]: Start accepts. Automaton has 7786 states and 11272 transitions. Word has length 139 [2024-11-11 21:44:48,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:48,208 INFO L471 AbstractCegarLoop]: Abstraction has 7786 states and 11272 transitions. [2024-11-11 21:44:48,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:48,208 INFO L276 IsEmpty]: Start isEmpty. Operand 7786 states and 11272 transitions. [2024-11-11 21:44:48,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-11 21:44:48,210 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:48,210 INFO L218 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, 1, 1, 1, 1] [2024-11-11 21:44:48,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-11 21:44:48,210 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:48,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:48,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1544847095, now seen corresponding path program 1 times [2024-11-11 21:44:48,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:48,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751167163] [2024-11-11 21:44:48,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:48,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:48,359 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:48,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:48,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751167163] [2024-11-11 21:44:48,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751167163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:48,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:48,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:44:48,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662862836] [2024-11-11 21:44:48,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:48,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:44:48,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:48,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:44:48,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:44:48,362 INFO L87 Difference]: Start difference. First operand 7786 states and 11272 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:48,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:48,653 INFO L93 Difference]: Finished difference Result 21088 states and 30768 transitions. [2024-11-11 21:44:48,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 21:44:48,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-11-11 21:44:48,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:48,665 INFO L225 Difference]: With dead ends: 21088 [2024-11-11 21:44:48,665 INFO L226 Difference]: Without dead ends: 13466 [2024-11-11 21:44:48,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-11 21:44:48,672 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 1044 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:48,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 499 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:44:48,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13466 states. [2024-11-11 21:44:48,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13466 to 8344. [2024-11-11 21:44:48,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8344 states, 8343 states have (on average 1.4439650005993048) internal successors, (12047), 8343 states have internal predecessors, (12047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:48,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8344 states to 8344 states and 12047 transitions. [2024-11-11 21:44:48,767 INFO L78 Accepts]: Start accepts. Automaton has 8344 states and 12047 transitions. Word has length 141 [2024-11-11 21:44:48,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:48,767 INFO L471 AbstractCegarLoop]: Abstraction has 8344 states and 12047 transitions. [2024-11-11 21:44:48,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:48,767 INFO L276 IsEmpty]: Start isEmpty. Operand 8344 states and 12047 transitions. [2024-11-11 21:44:48,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-11 21:44:48,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:48,769 INFO L218 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, 1, 1, 1, 1] [2024-11-11 21:44:48,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-11 21:44:48,769 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:48,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:48,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1628702113, now seen corresponding path program 1 times [2024-11-11 21:44:48,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:48,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463089971] [2024-11-11 21:44:48,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:48,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:48,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:48,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:48,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463089971] [2024-11-11 21:44:48,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463089971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:48,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:48,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:44:48,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697042166] [2024-11-11 21:44:48,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:48,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:44:48,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:48,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:44:48,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:44:48,919 INFO L87 Difference]: Start difference. First operand 8344 states and 12047 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:49,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:49,201 INFO L93 Difference]: Finished difference Result 29540 states and 42927 transitions. [2024-11-11 21:44:49,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 21:44:49,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-11-11 21:44:49,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:49,224 INFO L225 Difference]: With dead ends: 29540 [2024-11-11 21:44:49,224 INFO L226 Difference]: Without dead ends: 21378 [2024-11-11 21:44:49,233 INFO L434 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 [2024-11-11 21:44:49,233 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 1065 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:49,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 411 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:44:49,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21378 states. [2024-11-11 21:44:49,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21378 to 17664. [2024-11-11 21:44:49,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17664 states, 17663 states have (on average 1.4444884787408707) internal successors, (25514), 17663 states have internal predecessors, (25514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:49,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17664 states to 17664 states and 25514 transitions. [2024-11-11 21:44:49,419 INFO L78 Accepts]: Start accepts. Automaton has 17664 states and 25514 transitions. Word has length 141 [2024-11-11 21:44:49,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:49,419 INFO L471 AbstractCegarLoop]: Abstraction has 17664 states and 25514 transitions. [2024-11-11 21:44:49,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:49,419 INFO L276 IsEmpty]: Start isEmpty. Operand 17664 states and 25514 transitions. [2024-11-11 21:44:49,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-11 21:44:49,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:49,421 INFO L218 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, 1, 1, 1, 1] [2024-11-11 21:44:49,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-11 21:44:49,421 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:49,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:49,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1701848944, now seen corresponding path program 1 times [2024-11-11 21:44:49,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:49,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142967707] [2024-11-11 21:44:49,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:49,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:49,633 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:49,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:49,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142967707] [2024-11-11 21:44:49,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142967707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:49,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:49,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:44:49,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59479680] [2024-11-11 21:44:49,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:49,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:44:49,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:49,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:44:49,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:44:49,634 INFO L87 Difference]: Start difference. First operand 17664 states and 25514 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:49,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:49,922 INFO L93 Difference]: Finished difference Result 57732 states and 83560 transitions. [2024-11-11 21:44:49,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 21:44:49,923 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-11-11 21:44:49,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:49,966 INFO L225 Difference]: With dead ends: 57732 [2024-11-11 21:44:49,966 INFO L226 Difference]: Without dead ends: 40250 [2024-11-11 21:44:49,986 INFO L434 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 [2024-11-11 21:44:49,986 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 980 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:49,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 409 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:44:50,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40250 states. [2024-11-11 21:44:50,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40250 to 37464. [2024-11-11 21:44:50,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37464 states, 37463 states have (on average 1.443344099511518) internal successors, (54072), 37463 states have internal predecessors, (54072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:50,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37464 states to 37464 states and 54072 transitions. [2024-11-11 21:44:50,352 INFO L78 Accepts]: Start accepts. Automaton has 37464 states and 54072 transitions. Word has length 141 [2024-11-11 21:44:50,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:50,352 INFO L471 AbstractCegarLoop]: Abstraction has 37464 states and 54072 transitions. [2024-11-11 21:44:50,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:50,352 INFO L276 IsEmpty]: Start isEmpty. Operand 37464 states and 54072 transitions. [2024-11-11 21:44:50,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-11 21:44:50,354 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:50,354 INFO L218 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, 1, 1, 1, 1] [2024-11-11 21:44:50,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-11 21:44:50,354 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:50,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:50,355 INFO L85 PathProgramCache]: Analyzing trace with hash 182297884, now seen corresponding path program 1 times [2024-11-11 21:44:50,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:50,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150419025] [2024-11-11 21:44:50,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:50,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:50,504 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:50,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:50,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150419025] [2024-11-11 21:44:50,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150419025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:50,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:50,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:44:50,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687629495] [2024-11-11 21:44:50,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:50,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:44:50,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:50,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:44:50,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:44:50,506 INFO L87 Difference]: Start difference. First operand 37464 states and 54072 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:51,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:51,193 INFO L93 Difference]: Finished difference Result 135228 states and 196146 transitions. [2024-11-11 21:44:51,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 21:44:51,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-11-11 21:44:51,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:51,314 INFO L225 Difference]: With dead ends: 135228 [2024-11-11 21:44:51,314 INFO L226 Difference]: Without dead ends: 97946 [2024-11-11 21:44:51,357 INFO L434 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 [2024-11-11 21:44:51,357 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 1150 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:51,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 413 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:44:51,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97946 states. [2024-11-11 21:44:52,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97946 to 79384. [2024-11-11 21:44:52,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79384 states, 79383 states have (on average 1.4415680939243918) internal successors, (114436), 79383 states have internal predecessors, (114436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:52,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79384 states to 79384 states and 114436 transitions. [2024-11-11 21:44:52,737 INFO L78 Accepts]: Start accepts. Automaton has 79384 states and 114436 transitions. Word has length 141 [2024-11-11 21:44:52,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:52,737 INFO L471 AbstractCegarLoop]: Abstraction has 79384 states and 114436 transitions. [2024-11-11 21:44:52,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:52,737 INFO L276 IsEmpty]: Start isEmpty. Operand 79384 states and 114436 transitions. [2024-11-11 21:44:52,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-11 21:44:52,739 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:52,739 INFO L218 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, 1, 1, 1, 1] [2024-11-11 21:44:52,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-11 21:44:52,739 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:52,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:52,740 INFO L85 PathProgramCache]: Analyzing trace with hash -2146985950, now seen corresponding path program 1 times [2024-11-11 21:44:52,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:52,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586179522] [2024-11-11 21:44:52,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:52,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:53,150 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 21:44:53,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:53,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586179522] [2024-11-11 21:44:53,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586179522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:53,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:53,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 21:44:53,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816708688] [2024-11-11 21:44:53,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:53,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 21:44:53,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:53,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 21:44:53,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 21:44:53,152 INFO L87 Difference]: Start difference. First operand 79384 states and 114436 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:54,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:54,333 INFO L93 Difference]: Finished difference Result 298108 states and 431990 transitions. [2024-11-11 21:44:54,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 21:44:54,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-11-11 21:44:54,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:54,796 INFO L225 Difference]: With dead ends: 298108 [2024-11-11 21:44:54,796 INFO L226 Difference]: Without dead ends: 218906 [2024-11-11 21:44:54,847 INFO L434 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 [2024-11-11 21:44:54,852 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 1235 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:54,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1235 Valid, 415 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 21:44:54,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218906 states. [2024-11-11 21:44:56,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218906 to 167864. [2024-11-11 21:44:57,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167864 states, 167863 states have (on average 1.4396263619737524) internal successors, (241660), 167863 states have internal predecessors, (241660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:57,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167864 states to 167864 states and 241660 transitions. [2024-11-11 21:44:57,761 INFO L78 Accepts]: Start accepts. Automaton has 167864 states and 241660 transitions. Word has length 141 [2024-11-11 21:44:57,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:44:57,762 INFO L471 AbstractCegarLoop]: Abstraction has 167864 states and 241660 transitions. [2024-11-11 21:44:57,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:57,762 INFO L276 IsEmpty]: Start isEmpty. Operand 167864 states and 241660 transitions. [2024-11-11 21:44:57,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-11 21:44:57,785 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:44:57,785 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:44:57,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-11 21:44:57,785 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:44:57,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:44:57,786 INFO L85 PathProgramCache]: Analyzing trace with hash 2131140626, now seen corresponding path program 1 times [2024-11-11 21:44:57,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:44:57,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842398442] [2024-11-11 21:44:57,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:44:57,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:44:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:44:57,991 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-11 21:44:57,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:44:57,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842398442] [2024-11-11 21:44:57,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842398442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:44:57,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:44:57,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:44:57,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177782954] [2024-11-11 21:44:57,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:44:57,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:44:57,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:44:57,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:44:57,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:44:57,994 INFO L87 Difference]: Start difference. First operand 167864 states and 241660 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:44:59,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 21:44:59,065 INFO L93 Difference]: Finished difference Result 325756 states and 468206 transitions. [2024-11-11 21:44:59,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 21:44:59,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 [2024-11-11 21:44:59,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 21:44:59,701 INFO L225 Difference]: With dead ends: 325756 [2024-11-11 21:44:59,701 INFO L226 Difference]: Without dead ends: 158068 [2024-11-11 21:44:59,783 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:44:59,784 INFO L435 NwaCegarLoop]: 277 mSDtfsCounter, 93 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 21:44:59,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 459 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 21:44:59,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158068 states. [2024-11-11 21:45:01,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158068 to 155174. [2024-11-11 21:45:01,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155174 states, 155173 states have (on average 1.4288246022181694) internal successors, (221715), 155173 states have internal predecessors, (221715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:45:01,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155174 states to 155174 states and 221715 transitions. [2024-11-11 21:45:01,973 INFO L78 Accepts]: Start accepts. Automaton has 155174 states and 221715 transitions. Word has length 172 [2024-11-11 21:45:01,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 21:45:01,974 INFO L471 AbstractCegarLoop]: Abstraction has 155174 states and 221715 transitions. [2024-11-11 21:45:01,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 21:45:01,974 INFO L276 IsEmpty]: Start isEmpty. Operand 155174 states and 221715 transitions. [2024-11-11 21:45:01,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-11 21:45:01,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 21:45:01,999 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 21:45:01,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-11 21:45:02,000 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 21:45:02,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 21:45:02,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1214191698, now seen corresponding path program 1 times [2024-11-11 21:45:02,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 21:45:02,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327899438] [2024-11-11 21:45:02,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 21:45:02,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 21:45:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 21:45:02,795 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 21:45:02,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 21:45:02,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327899438] [2024-11-11 21:45:02,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327899438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 21:45:02,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 21:45:02,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 21:45:02,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067679306] [2024-11-11 21:45:02,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 21:45:02,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 21:45:02,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 21:45:02,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 21:45:02,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 21:45:02,801 INFO L87 Difference]: Start difference. First operand 155174 states and 221715 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)