./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d5cb8d9caea7ccafc5dde86756b709e1bbbadc4ec66724ae09094031008d598 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:56:55,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:56:56,020 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:56:56,024 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:56:56,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:56:56,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:56:56,055 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:56:56,056 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:56:56,056 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:56:56,057 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:56:56,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:56:56,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:56:56,058 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:56:56,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:56:56,060 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:56:56,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:56:56,061 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:56:56,061 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:56:56,061 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:56:56,061 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:56:56,061 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:56:56,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:56:56,064 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:56:56,064 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:56:56,065 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:56:56,065 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:56:56,065 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:56:56,065 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:56:56,065 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:56:56,065 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:56:56,066 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:56:56,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:56:56,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:56:56,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:56:56,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:56:56,066 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:56:56,066 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:56:56,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:56:56,067 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:56:56,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:56:56,067 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:56:56,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:56:56,068 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d5cb8d9caea7ccafc5dde86756b709e1bbbadc4ec66724ae09094031008d598 [2024-10-14 03:56:56,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:56:56,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:56:56,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:56:56,306 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:56:56,306 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:56:56,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-10-14 03:56:57,554 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:56:57,742 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:56:57,742 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-10-14 03:56:57,754 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d49c922e6/5b51ca1d91f14c1ba14df158b47ea45c/FLAG2f873b0ca [2024-10-14 03:56:57,766 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d49c922e6/5b51ca1d91f14c1ba14df158b47ea45c [2024-10-14 03:56:57,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:56:57,769 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:56:57,771 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:56:57,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:56:57,776 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:56:57,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:56:57" (1/1) ... [2024-10-14 03:56:57,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b34002a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:56:57, skipping insertion in model container [2024-10-14 03:56:57,777 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:56:57" (1/1) ... [2024-10-14 03:56:57,824 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:56:58,077 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c[10276,10289] [2024-10-14 03:56:58,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:56:58,139 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:56:58,191 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c[10276,10289] [2024-10-14 03:56:58,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:56:58,232 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:56:58,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:56:58 WrapperNode [2024-10-14 03:56:58,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:56:58,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:56:58,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:56:58,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:56:58,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:56:58" (1/1) ... [2024-10-14 03:56:58,250 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:56:58" (1/1) ... [2024-10-14 03:56:58,277 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 892 [2024-10-14 03:56:58,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:56:58,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:56:58,278 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:56:58,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:56:58,292 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:56:58" (1/1) ... [2024-10-14 03:56:58,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:56:58" (1/1) ... [2024-10-14 03:56:58,298 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:56:58" (1/1) ... [2024-10-14 03:56:58,323 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 03:56:58,324 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:56:58" (1/1) ... [2024-10-14 03:56:58,324 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:56:58" (1/1) ... [2024-10-14 03:56:58,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:56:58" (1/1) ... [2024-10-14 03:56:58,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:56:58" (1/1) ... [2024-10-14 03:56:58,342 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:56:58" (1/1) ... [2024-10-14 03:56:58,344 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:56:58" (1/1) ... [2024-10-14 03:56:58,348 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:56:58,349 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:56:58,349 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:56:58,349 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:56:58,350 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:56:58" (1/1) ... [2024-10-14 03:56:58,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:56:58,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:56:58,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 03:56:58,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 03:56:58,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:56:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:56:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:56:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:56:58,590 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:56:58,591 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:56:59,176 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-10-14 03:56:59,177 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:56:59,206 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:56:59,206 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 03:56:59,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:56:59 BoogieIcfgContainer [2024-10-14 03:56:59,206 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:56:59,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:56:59,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:56:59,211 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:56:59,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:56:57" (1/3) ... [2024-10-14 03:56:59,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c43e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:56:59, skipping insertion in model container [2024-10-14 03:56:59,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:56:58" (2/3) ... [2024-10-14 03:56:59,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c43e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:56:59, skipping insertion in model container [2024-10-14 03:56:59,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:56:59" (3/3) ... [2024-10-14 03:56:59,214 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.p+lhb-reducer.c [2024-10-14 03:56:59,227 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:56:59,227 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:56:59,282 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:56:59,290 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;@3fe66718, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:56:59,290 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:56:59,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 211 states have (on average 1.6824644549763033) internal successors, (355), 212 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:56:59,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 03:56:59,304 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:56:59,304 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:56:59,305 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:56:59,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:56:59,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1526975210, now seen corresponding path program 1 times [2024-10-14 03:56:59,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:56:59,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424699673] [2024-10-14 03:56:59,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:56:59,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:56:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:56:59,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:56:59,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:56:59,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424699673] [2024-10-14 03:56:59,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424699673] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:56:59,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:56:59,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:56:59,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857107385] [2024-10-14 03:56:59,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:56:59,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:56:59,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:56:59,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:56:59,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:56:59,769 INFO L87 Difference]: Start difference. First operand has 213 states, 211 states have (on average 1.6824644549763033) internal successors, (355), 212 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:56:59,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:56:59,880 INFO L93 Difference]: Finished difference Result 395 states and 648 transitions. [2024-10-14 03:56:59,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:56:59,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-10-14 03:56:59,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:56:59,893 INFO L225 Difference]: With dead ends: 395 [2024-10-14 03:56:59,893 INFO L226 Difference]: Without dead ends: 211 [2024-10-14 03:56:59,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:56:59,900 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 93 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:56:59,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 910 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:56:59,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-10-14 03:56:59,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2024-10-14 03:56:59,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.5047619047619047) internal successors, (316), 210 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:56:59,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 316 transitions. [2024-10-14 03:56:59,940 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 316 transitions. Word has length 78 [2024-10-14 03:56:59,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:56:59,941 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 316 transitions. [2024-10-14 03:56:59,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:56:59,941 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 316 transitions. [2024-10-14 03:56:59,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-14 03:56:59,944 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:56:59,944 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:56:59,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:56:59,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:56:59,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:56:59,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1909137144, now seen corresponding path program 1 times [2024-10-14 03:56:59,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:56:59,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506541167] [2024-10-14 03:56:59,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:56:59,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:56:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:00,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:00,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:00,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506541167] [2024-10-14 03:57:00,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506541167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:00,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:00,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:00,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328744726] [2024-10-14 03:57:00,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:00,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:00,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:00,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:00,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:00,111 INFO L87 Difference]: Start difference. First operand 211 states and 316 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:00,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:00,151 INFO L93 Difference]: Finished difference Result 479 states and 742 transitions. [2024-10-14 03:57:00,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:00,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-10-14 03:57:00,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:00,159 INFO L225 Difference]: With dead ends: 479 [2024-10-14 03:57:00,159 INFO L226 Difference]: Without dead ends: 308 [2024-10-14 03:57:00,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:00,164 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 175 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:00,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 557 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:00,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-10-14 03:57:00,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 306. [2024-10-14 03:57:00,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.5278688524590165) internal successors, (466), 305 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:00,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 466 transitions. [2024-10-14 03:57:00,180 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 466 transitions. Word has length 108 [2024-10-14 03:57:00,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:00,183 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 466 transitions. [2024-10-14 03:57:00,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:00,184 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 466 transitions. [2024-10-14 03:57:00,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-14 03:57:00,186 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:00,186 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:00,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:57:00,186 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:00,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:00,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1574101951, now seen corresponding path program 1 times [2024-10-14 03:57:00,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:00,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610614493] [2024-10-14 03:57:00,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:00,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:00,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:00,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:00,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610614493] [2024-10-14 03:57:00,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610614493] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:00,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:00,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:00,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10596668] [2024-10-14 03:57:00,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:00,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:00,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:00,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:00,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:00,354 INFO L87 Difference]: Start difference. First operand 306 states and 466 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:00,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:00,377 INFO L93 Difference]: Finished difference Result 734 states and 1147 transitions. [2024-10-14 03:57:00,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:00,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-10-14 03:57:00,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:00,382 INFO L225 Difference]: With dead ends: 734 [2024-10-14 03:57:00,384 INFO L226 Difference]: Without dead ends: 474 [2024-10-14 03:57:00,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:00,386 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 162 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:00,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 600 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:00,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-10-14 03:57:00,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 472. [2024-10-14 03:57:00,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.545647558386412) internal successors, (728), 471 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:00,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 728 transitions. [2024-10-14 03:57:00,406 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 728 transitions. Word has length 110 [2024-10-14 03:57:00,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:00,407 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 728 transitions. [2024-10-14 03:57:00,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:00,407 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 728 transitions. [2024-10-14 03:57:00,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 03:57:00,409 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:00,409 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:00,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:57:00,412 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:00,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:00,413 INFO L85 PathProgramCache]: Analyzing trace with hash -208708936, now seen corresponding path program 1 times [2024-10-14 03:57:00,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:00,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893495380] [2024-10-14 03:57:00,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:00,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:00,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:00,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:00,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893495380] [2024-10-14 03:57:00,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893495380] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:00,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:00,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:00,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114553526] [2024-10-14 03:57:00,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:00,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:00,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:00,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:00,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:00,513 INFO L87 Difference]: Start difference. First operand 472 states and 728 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:00,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:00,539 INFO L93 Difference]: Finished difference Result 1174 states and 1843 transitions. [2024-10-14 03:57:00,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:00,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2024-10-14 03:57:00,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:00,543 INFO L225 Difference]: With dead ends: 1174 [2024-10-14 03:57:00,543 INFO L226 Difference]: Without dead ends: 754 [2024-10-14 03:57:00,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:00,547 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 149 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:00,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 517 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:00,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-10-14 03:57:00,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 752. [2024-10-14 03:57:00,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 751 states have (on average 1.5552596537949401) internal successors, (1168), 751 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:00,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1168 transitions. [2024-10-14 03:57:00,575 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1168 transitions. Word has length 112 [2024-10-14 03:57:00,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:00,576 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1168 transitions. [2024-10-14 03:57:00,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:00,577 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1168 transitions. [2024-10-14 03:57:00,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 03:57:00,579 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:00,579 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:00,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:57:00,580 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:00,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:00,581 INFO L85 PathProgramCache]: Analyzing trace with hash 246757779, now seen corresponding path program 1 times [2024-10-14 03:57:00,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:00,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527357523] [2024-10-14 03:57:00,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:00,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:00,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:00,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527357523] [2024-10-14 03:57:00,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527357523] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:00,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:00,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:00,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595636106] [2024-10-14 03:57:00,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:00,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:00,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:00,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:00,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:00,666 INFO L87 Difference]: Start difference. First operand 752 states and 1168 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:00,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:00,718 INFO L93 Difference]: Finished difference Result 1900 states and 2983 transitions. [2024-10-14 03:57:00,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:00,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-10-14 03:57:00,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:00,724 INFO L225 Difference]: With dead ends: 1900 [2024-10-14 03:57:00,724 INFO L226 Difference]: Without dead ends: 1206 [2024-10-14 03:57:00,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:00,728 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 136 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:00,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 528 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:00,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2024-10-14 03:57:00,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1204. [2024-10-14 03:57:00,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 1203 states have (on average 1.5561097256857854) internal successors, (1872), 1203 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:00,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1872 transitions. [2024-10-14 03:57:00,756 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1872 transitions. Word has length 114 [2024-10-14 03:57:00,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:00,756 INFO L471 AbstractCegarLoop]: Abstraction has 1204 states and 1872 transitions. [2024-10-14 03:57:00,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:00,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1872 transitions. [2024-10-14 03:57:00,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-14 03:57:00,760 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:00,760 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:00,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:57:00,761 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:00,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:00,762 INFO L85 PathProgramCache]: Analyzing trace with hash -311262755, now seen corresponding path program 1 times [2024-10-14 03:57:00,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:00,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581284755] [2024-10-14 03:57:00,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:00,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:00,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:00,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:00,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581284755] [2024-10-14 03:57:00,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581284755] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:00,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:00,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:00,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399092316] [2024-10-14 03:57:00,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:00,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:00,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:00,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:00,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:00,866 INFO L87 Difference]: Start difference. First operand 1204 states and 1872 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:00,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:00,903 INFO L93 Difference]: Finished difference Result 3030 states and 4735 transitions. [2024-10-14 03:57:00,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:00,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-10-14 03:57:00,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:00,912 INFO L225 Difference]: With dead ends: 3030 [2024-10-14 03:57:00,913 INFO L226 Difference]: Without dead ends: 1890 [2024-10-14 03:57:00,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:00,917 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 123 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:00,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 477 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:00,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2024-10-14 03:57:00,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1888. [2024-10-14 03:57:00,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1888 states, 1887 states have (on average 1.5474297827239003) internal successors, (2920), 1887 states have internal predecessors, (2920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:00,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1888 states to 1888 states and 2920 transitions. [2024-10-14 03:57:00,956 INFO L78 Accepts]: Start accepts. Automaton has 1888 states and 2920 transitions. Word has length 116 [2024-10-14 03:57:00,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:00,956 INFO L471 AbstractCegarLoop]: Abstraction has 1888 states and 2920 transitions. [2024-10-14 03:57:00,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:00,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1888 states and 2920 transitions. [2024-10-14 03:57:00,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 03:57:00,961 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:00,961 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:00,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:57:00,962 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:00,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:00,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1405439624, now seen corresponding path program 1 times [2024-10-14 03:57:00,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:00,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949920643] [2024-10-14 03:57:00,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:00,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:01,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:01,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:01,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949920643] [2024-10-14 03:57:01,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949920643] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:01,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:01,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:01,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956846651] [2024-10-14 03:57:01,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:01,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:01,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:01,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:01,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:01,144 INFO L87 Difference]: Start difference. First operand 1888 states and 2920 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:01,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:01,450 INFO L93 Difference]: Finished difference Result 16373 states and 25283 transitions. [2024-10-14 03:57:01,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 03:57:01,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-10-14 03:57:01,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:01,494 INFO L225 Difference]: With dead ends: 16373 [2024-10-14 03:57:01,494 INFO L226 Difference]: Without dead ends: 14555 [2024-10-14 03:57:01,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:57:01,505 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 2403 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:01,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2403 Valid, 1882 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:57:01,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14555 states. [2024-10-14 03:57:01,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14555 to 3649. [2024-10-14 03:57:01,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3649 states, 3648 states have (on average 1.5169956140350878) internal successors, (5534), 3648 states have internal predecessors, (5534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:01,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3649 states to 3649 states and 5534 transitions. [2024-10-14 03:57:01,641 INFO L78 Accepts]: Start accepts. Automaton has 3649 states and 5534 transitions. Word has length 118 [2024-10-14 03:57:01,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:01,642 INFO L471 AbstractCegarLoop]: Abstraction has 3649 states and 5534 transitions. [2024-10-14 03:57:01,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 3649 states and 5534 transitions. [2024-10-14 03:57:01,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 03:57:01,647 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:01,648 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:01,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:57:01,648 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:01,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:01,648 INFO L85 PathProgramCache]: Analyzing trace with hash -2015160990, now seen corresponding path program 1 times [2024-10-14 03:57:01,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:01,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934112608] [2024-10-14 03:57:01,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:01,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:01,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:01,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:01,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934112608] [2024-10-14 03:57:01,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934112608] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:01,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:01,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:01,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555535607] [2024-10-14 03:57:01,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:01,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:01,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:01,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:01,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:01,735 INFO L87 Difference]: Start difference. First operand 3649 states and 5534 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:01,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:01,783 INFO L93 Difference]: Finished difference Result 8385 states and 12720 transitions. [2024-10-14 03:57:01,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:01,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-10-14 03:57:01,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:01,797 INFO L225 Difference]: With dead ends: 8385 [2024-10-14 03:57:01,797 INFO L226 Difference]: Without dead ends: 4804 [2024-10-14 03:57:01,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:01,804 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 186 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:01,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 590 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:01,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4804 states. [2024-10-14 03:57:01,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4804 to 4802. [2024-10-14 03:57:01,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4802 states, 4801 states have (on average 1.4930222870235368) internal successors, (7168), 4801 states have internal predecessors, (7168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:01,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4802 states to 4802 states and 7168 transitions. [2024-10-14 03:57:01,891 INFO L78 Accepts]: Start accepts. Automaton has 4802 states and 7168 transitions. Word has length 122 [2024-10-14 03:57:01,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:01,892 INFO L471 AbstractCegarLoop]: Abstraction has 4802 states and 7168 transitions. [2024-10-14 03:57:01,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:01,892 INFO L276 IsEmpty]: Start isEmpty. Operand 4802 states and 7168 transitions. [2024-10-14 03:57:01,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 03:57:01,899 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:01,899 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:01,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:57:01,899 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:01,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:01,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1905337537, now seen corresponding path program 1 times [2024-10-14 03:57:01,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:01,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487735357] [2024-10-14 03:57:01,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:01,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:02,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:02,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:02,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487735357] [2024-10-14 03:57:02,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487735357] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:02,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:02,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:02,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161659303] [2024-10-14 03:57:02,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:02,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:02,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:02,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:02,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:02,214 INFO L87 Difference]: Start difference. First operand 4802 states and 7168 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:02,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:02,438 INFO L93 Difference]: Finished difference Result 9537 states and 14257 transitions. [2024-10-14 03:57:02,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:02,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-10-14 03:57:02,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:02,445 INFO L225 Difference]: With dead ends: 9537 [2024-10-14 03:57:02,446 INFO L226 Difference]: Without dead ends: 4804 [2024-10-14 03:57:02,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:57:02,451 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 597 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:02,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 993 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:02,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4804 states. [2024-10-14 03:57:02,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4804 to 4802. [2024-10-14 03:57:02,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4802 states, 4801 states have (on average 1.4761508019162675) internal successors, (7087), 4801 states have internal predecessors, (7087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:02,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4802 states to 4802 states and 7087 transitions. [2024-10-14 03:57:02,523 INFO L78 Accepts]: Start accepts. Automaton has 4802 states and 7087 transitions. Word has length 122 [2024-10-14 03:57:02,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:02,523 INFO L471 AbstractCegarLoop]: Abstraction has 4802 states and 7087 transitions. [2024-10-14 03:57:02,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 7 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:02,523 INFO L276 IsEmpty]: Start isEmpty. Operand 4802 states and 7087 transitions. [2024-10-14 03:57:02,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-14 03:57:02,530 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:02,530 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:02,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:57:02,530 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:02,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:02,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1658606351, now seen corresponding path program 1 times [2024-10-14 03:57:02,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:02,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269590174] [2024-10-14 03:57:02,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:02,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:02,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:02,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:02,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269590174] [2024-10-14 03:57:02,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269590174] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:02,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:02,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:02,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627988532] [2024-10-14 03:57:02,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:02,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:02,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:02,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:02,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:02,743 INFO L87 Difference]: Start difference. First operand 4802 states and 7087 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:02,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:02,949 INFO L93 Difference]: Finished difference Result 24884 states and 36791 transitions. [2024-10-14 03:57:02,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:02,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-10-14 03:57:02,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:02,979 INFO L225 Difference]: With dead ends: 24884 [2024-10-14 03:57:02,979 INFO L226 Difference]: Without dead ends: 21154 [2024-10-14 03:57:02,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:02,990 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 1573 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1573 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:02,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1573 Valid, 1548 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:03,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21154 states. [2024-10-14 03:57:03,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21154 to 8725. [2024-10-14 03:57:03,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8725 states, 8724 states have (on average 1.4681338835396607) internal successors, (12808), 8724 states have internal predecessors, (12808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:03,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8725 states to 8725 states and 12808 transitions. [2024-10-14 03:57:03,189 INFO L78 Accepts]: Start accepts. Automaton has 8725 states and 12808 transitions. Word has length 123 [2024-10-14 03:57:03,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:03,190 INFO L471 AbstractCegarLoop]: Abstraction has 8725 states and 12808 transitions. [2024-10-14 03:57:03,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:03,190 INFO L276 IsEmpty]: Start isEmpty. Operand 8725 states and 12808 transitions. [2024-10-14 03:57:03,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-14 03:57:03,200 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:03,200 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:03,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 03:57:03,201 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:03,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:03,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1686943615, now seen corresponding path program 1 times [2024-10-14 03:57:03,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:03,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45567071] [2024-10-14 03:57:03,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:03,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:03,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:03,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:03,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45567071] [2024-10-14 03:57:03,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45567071] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:03,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:03,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:03,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603613025] [2024-10-14 03:57:03,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:03,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:03,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:03,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:03,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:03,348 INFO L87 Difference]: Start difference. First operand 8725 states and 12808 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:03,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:03,589 INFO L93 Difference]: Finished difference Result 28672 states and 42339 transitions. [2024-10-14 03:57:03,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:03,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-10-14 03:57:03,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:03,625 INFO L225 Difference]: With dead ends: 28672 [2024-10-14 03:57:03,626 INFO L226 Difference]: Without dead ends: 24942 [2024-10-14 03:57:03,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:03,635 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 1435 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:03,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 1650 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:03,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24942 states. [2024-10-14 03:57:03,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24942 to 14570. [2024-10-14 03:57:03,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14570 states, 14569 states have (on average 1.4637243462145653) internal successors, (21325), 14569 states have internal predecessors, (21325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:03,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14570 states to 14570 states and 21325 transitions. [2024-10-14 03:57:03,906 INFO L78 Accepts]: Start accepts. Automaton has 14570 states and 21325 transitions. Word has length 123 [2024-10-14 03:57:03,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:03,906 INFO L471 AbstractCegarLoop]: Abstraction has 14570 states and 21325 transitions. [2024-10-14 03:57:03,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:03,907 INFO L276 IsEmpty]: Start isEmpty. Operand 14570 states and 21325 transitions. [2024-10-14 03:57:03,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-14 03:57:03,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:03,922 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:03,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 03:57:03,922 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:03,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:03,923 INFO L85 PathProgramCache]: Analyzing trace with hash -285827830, now seen corresponding path program 1 times [2024-10-14 03:57:03,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:03,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739506299] [2024-10-14 03:57:03,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:03,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:04,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:04,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:04,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739506299] [2024-10-14 03:57:04,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739506299] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:04,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:04,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:04,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571468347] [2024-10-14 03:57:04,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:04,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:04,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:04,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:04,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:04,096 INFO L87 Difference]: Start difference. First operand 14570 states and 21325 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:04,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:04,400 INFO L93 Difference]: Finished difference Result 32542 states and 48009 transitions. [2024-10-14 03:57:04,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:04,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-10-14 03:57:04,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:04,445 INFO L225 Difference]: With dead ends: 32542 [2024-10-14 03:57:04,446 INFO L226 Difference]: Without dead ends: 28812 [2024-10-14 03:57:04,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:04,458 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 1489 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:04,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 1876 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:57:04,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28812 states. [2024-10-14 03:57:04,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28812 to 18530. [2024-10-14 03:57:04,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18530 states, 18529 states have (on average 1.4644611150089049) internal successors, (27135), 18529 states have internal predecessors, (27135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:04,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18530 states to 18530 states and 27135 transitions. [2024-10-14 03:57:04,817 INFO L78 Accepts]: Start accepts. Automaton has 18530 states and 27135 transitions. Word has length 123 [2024-10-14 03:57:04,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:04,817 INFO L471 AbstractCegarLoop]: Abstraction has 18530 states and 27135 transitions. [2024-10-14 03:57:04,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:04,817 INFO L276 IsEmpty]: Start isEmpty. Operand 18530 states and 27135 transitions. [2024-10-14 03:57:04,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-14 03:57:04,839 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:04,839 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:04,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 03:57:04,839 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:04,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:04,840 INFO L85 PathProgramCache]: Analyzing trace with hash -971539581, now seen corresponding path program 1 times [2024-10-14 03:57:04,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:04,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363971560] [2024-10-14 03:57:04,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:04,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:04,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:04,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:04,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363971560] [2024-10-14 03:57:04,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363971560] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:04,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:04,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:04,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909164934] [2024-10-14 03:57:04,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:04,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:04,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:04,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:04,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:05,000 INFO L87 Difference]: Start difference. First operand 18530 states and 27135 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:05,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:05,297 INFO L93 Difference]: Finished difference Result 36471 states and 53770 transitions. [2024-10-14 03:57:05,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:05,298 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-10-14 03:57:05,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:05,344 INFO L225 Difference]: With dead ends: 36471 [2024-10-14 03:57:05,344 INFO L226 Difference]: Without dead ends: 32741 [2024-10-14 03:57:05,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:05,357 INFO L432 NwaCegarLoop]: 502 mSDtfsCounter, 1717 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:05,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 1773 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:05,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32741 states. [2024-10-14 03:57:05,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32741 to 22499. [2024-10-14 03:57:05,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22499 states, 22498 states have (on average 1.4650191128100276) internal successors, (32960), 22498 states have internal predecessors, (32960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:05,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22499 states to 22499 states and 32960 transitions. [2024-10-14 03:57:05,683 INFO L78 Accepts]: Start accepts. Automaton has 22499 states and 32960 transitions. Word has length 123 [2024-10-14 03:57:05,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:05,683 INFO L471 AbstractCegarLoop]: Abstraction has 22499 states and 32960 transitions. [2024-10-14 03:57:05,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:05,683 INFO L276 IsEmpty]: Start isEmpty. Operand 22499 states and 32960 transitions. [2024-10-14 03:57:05,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-14 03:57:05,703 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:05,703 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:05,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 03:57:05,703 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:05,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:05,704 INFO L85 PathProgramCache]: Analyzing trace with hash -488571038, now seen corresponding path program 1 times [2024-10-14 03:57:05,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:05,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45566593] [2024-10-14 03:57:05,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:05,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:05,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:05,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:05,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45566593] [2024-10-14 03:57:05,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45566593] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:05,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:05,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:05,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76520316] [2024-10-14 03:57:05,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:05,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:05,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:05,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:05,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:05,867 INFO L87 Difference]: Start difference. First operand 22499 states and 32960 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:06,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:06,177 INFO L93 Difference]: Finished difference Result 38061 states and 56156 transitions. [2024-10-14 03:57:06,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:06,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2024-10-14 03:57:06,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:06,217 INFO L225 Difference]: With dead ends: 38061 [2024-10-14 03:57:06,218 INFO L226 Difference]: Without dead ends: 35531 [2024-10-14 03:57:06,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:06,231 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 1736 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1736 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:06,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1736 Valid, 1308 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:06,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35531 states. [2024-10-14 03:57:06,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35531 to 25289. [2024-10-14 03:57:06,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25289 states, 25288 states have (on average 1.4673362859854477) internal successors, (37106), 25288 states have internal predecessors, (37106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:06,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25289 states to 25289 states and 37106 transitions. [2024-10-14 03:57:06,768 INFO L78 Accepts]: Start accepts. Automaton has 25289 states and 37106 transitions. Word has length 123 [2024-10-14 03:57:06,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:06,768 INFO L471 AbstractCegarLoop]: Abstraction has 25289 states and 37106 transitions. [2024-10-14 03:57:06,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 7 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:06,768 INFO L276 IsEmpty]: Start isEmpty. Operand 25289 states and 37106 transitions. [2024-10-14 03:57:06,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 03:57:06,783 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:06,783 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:06,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 03:57:06,783 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:06,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:06,783 INFO L85 PathProgramCache]: Analyzing trace with hash 10739123, now seen corresponding path program 1 times [2024-10-14 03:57:06,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:06,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126416976] [2024-10-14 03:57:06,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:06,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:06,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:06,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:06,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126416976] [2024-10-14 03:57:06,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126416976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:06,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:06,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:06,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125709642] [2024-10-14 03:57:06,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:06,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:06,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:06,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:06,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:06,876 INFO L87 Difference]: Start difference. First operand 25289 states and 37106 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:07,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:07,205 INFO L93 Difference]: Finished difference Result 74046 states and 108589 transitions. [2024-10-14 03:57:07,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:07,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 03:57:07,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:07,266 INFO L225 Difference]: With dead ends: 74046 [2024-10-14 03:57:07,267 INFO L226 Difference]: Without dead ends: 50235 [2024-10-14 03:57:07,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:07,298 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 153 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:07,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 334 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:07,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50235 states. [2024-10-14 03:57:07,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50235 to 50233. [2024-10-14 03:57:07,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50233 states, 50232 states have (on average 1.4585523172479695) internal successors, (73266), 50232 states have internal predecessors, (73266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:07,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50233 states to 50233 states and 73266 transitions. [2024-10-14 03:57:07,847 INFO L78 Accepts]: Start accepts. Automaton has 50233 states and 73266 transitions. Word has length 125 [2024-10-14 03:57:07,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:07,847 INFO L471 AbstractCegarLoop]: Abstraction has 50233 states and 73266 transitions. [2024-10-14 03:57:07,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:07,847 INFO L276 IsEmpty]: Start isEmpty. Operand 50233 states and 73266 transitions. [2024-10-14 03:57:07,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 03:57:07,880 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:07,880 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:07,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 03:57:07,880 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:07,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:07,881 INFO L85 PathProgramCache]: Analyzing trace with hash 335061902, now seen corresponding path program 1 times [2024-10-14 03:57:07,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:07,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590489613] [2024-10-14 03:57:07,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:07,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:07,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:07,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:07,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590489613] [2024-10-14 03:57:07,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590489613] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:07,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:07,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:07,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133829458] [2024-10-14 03:57:07,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:07,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:07,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:07,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:07,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:07,951 INFO L87 Difference]: Start difference. First operand 50233 states and 73266 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:08,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:08,846 INFO L93 Difference]: Finished difference Result 146458 states and 213193 transitions. [2024-10-14 03:57:08,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:08,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 03:57:08,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:08,984 INFO L225 Difference]: With dead ends: 146458 [2024-10-14 03:57:08,984 INFO L226 Difference]: Without dead ends: 99676 [2024-10-14 03:57:09,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:09,001 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 136 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:09,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 346 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:57:09,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99676 states. [2024-10-14 03:57:10,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99676 to 99674. [2024-10-14 03:57:10,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99674 states, 99673 states have (on average 1.447784254512255) internal successors, (144305), 99673 states have internal predecessors, (144305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:10,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99674 states to 99674 states and 144305 transitions. [2024-10-14 03:57:10,661 INFO L78 Accepts]: Start accepts. Automaton has 99674 states and 144305 transitions. Word has length 125 [2024-10-14 03:57:10,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:10,661 INFO L471 AbstractCegarLoop]: Abstraction has 99674 states and 144305 transitions. [2024-10-14 03:57:10,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:10,661 INFO L276 IsEmpty]: Start isEmpty. Operand 99674 states and 144305 transitions. [2024-10-14 03:57:10,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 03:57:10,771 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:10,772 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:10,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 03:57:10,772 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:10,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:10,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1608929907, now seen corresponding path program 1 times [2024-10-14 03:57:10,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:10,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878527862] [2024-10-14 03:57:10,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:10,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:10,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:10,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:10,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878527862] [2024-10-14 03:57:10,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878527862] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:10,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:10,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:57:10,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978815858] [2024-10-14 03:57:10,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:10,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:57:10,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:10,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:57:10,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:57:10,868 INFO L87 Difference]: Start difference. First operand 99674 states and 144305 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:11,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:11,807 INFO L93 Difference]: Finished difference Result 267470 states and 388501 transitions. [2024-10-14 03:57:11,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:57:11,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 03:57:11,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:11,994 INFO L225 Difference]: With dead ends: 267470 [2024-10-14 03:57:11,994 INFO L226 Difference]: Without dead ends: 167834 [2024-10-14 03:57:12,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:12,059 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1103 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:12,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 247 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:57:12,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167834 states. [2024-10-14 03:57:14,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167834 to 167832. [2024-10-14 03:57:14,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167832 states, 167831 states have (on average 1.4460618121801097) internal successors, (242694), 167831 states have internal predecessors, (242694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:14,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167832 states to 167832 states and 242694 transitions. [2024-10-14 03:57:14,908 INFO L78 Accepts]: Start accepts. Automaton has 167832 states and 242694 transitions. Word has length 125 [2024-10-14 03:57:14,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:14,908 INFO L471 AbstractCegarLoop]: Abstraction has 167832 states and 242694 transitions. [2024-10-14 03:57:14,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:14,908 INFO L276 IsEmpty]: Start isEmpty. Operand 167832 states and 242694 transitions. [2024-10-14 03:57:15,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 03:57:15,102 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:15,102 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:15,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 03:57:15,103 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:15,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:15,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1774976489, now seen corresponding path program 1 times [2024-10-14 03:57:15,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:15,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251842363] [2024-10-14 03:57:15,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:15,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:15,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:15,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:15,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251842363] [2024-10-14 03:57:15,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251842363] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:15,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:15,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:57:15,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700207647] [2024-10-14 03:57:15,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:15,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:57:15,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:15,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:57:15,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:57:15,204 INFO L87 Difference]: Start difference. First operand 167832 states and 242694 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:16,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:16,457 INFO L93 Difference]: Finished difference Result 335608 states and 485325 transitions. [2024-10-14 03:57:16,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:57:16,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 03:57:16,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:16,688 INFO L225 Difference]: With dead ends: 335608 [2024-10-14 03:57:16,688 INFO L226 Difference]: Without dead ends: 167832 [2024-10-14 03:57:16,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:16,771 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 725 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:16,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 167 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:16,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167832 states. [2024-10-14 03:57:18,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167832 to 167832. [2024-10-14 03:57:19,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167832 states, 167831 states have (on average 1.4337518098563435) internal successors, (240628), 167831 states have internal predecessors, (240628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:19,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167832 states to 167832 states and 240628 transitions. [2024-10-14 03:57:19,266 INFO L78 Accepts]: Start accepts. Automaton has 167832 states and 240628 transitions. Word has length 125 [2024-10-14 03:57:19,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:19,266 INFO L471 AbstractCegarLoop]: Abstraction has 167832 states and 240628 transitions. [2024-10-14 03:57:19,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:19,266 INFO L276 IsEmpty]: Start isEmpty. Operand 167832 states and 240628 transitions. [2024-10-14 03:57:19,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 03:57:19,385 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:19,385 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:19,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 03:57:19,386 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:19,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:19,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1215332681, now seen corresponding path program 1 times [2024-10-14 03:57:19,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:19,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063948354] [2024-10-14 03:57:19,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:19,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:19,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:19,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:19,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063948354] [2024-10-14 03:57:19,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063948354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:19,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:19,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:57:19,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147965837] [2024-10-14 03:57:19,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:19,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:57:19,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:19,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:57:19,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:57:19,469 INFO L87 Difference]: Start difference. First operand 167832 states and 240628 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:20,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:20,740 INFO L93 Difference]: Finished difference Result 248145 states and 356666 transitions. [2024-10-14 03:57:20,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:57:20,740 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 03:57:20,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:20,837 INFO L225 Difference]: With dead ends: 248145 [2024-10-14 03:57:20,837 INFO L226 Difference]: Without dead ends: 84447 [2024-10-14 03:57:20,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:20,919 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 729 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:20,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 159 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:20,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84447 states. [2024-10-14 03:57:21,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84447 to 84447. [2024-10-14 03:57:22,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84447 states, 84446 states have (on average 1.4310328493948796) internal successors, (120845), 84446 states have internal predecessors, (120845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:22,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84447 states to 84447 states and 120845 transitions. [2024-10-14 03:57:22,153 INFO L78 Accepts]: Start accepts. Automaton has 84447 states and 120845 transitions. Word has length 125 [2024-10-14 03:57:22,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:22,153 INFO L471 AbstractCegarLoop]: Abstraction has 84447 states and 120845 transitions. [2024-10-14 03:57:22,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:22,154 INFO L276 IsEmpty]: Start isEmpty. Operand 84447 states and 120845 transitions. [2024-10-14 03:57:22,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 03:57:22,209 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:22,209 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:22,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 03:57:22,209 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:22,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:22,210 INFO L85 PathProgramCache]: Analyzing trace with hash 809210579, now seen corresponding path program 1 times [2024-10-14 03:57:22,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:22,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079763083] [2024-10-14 03:57:22,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:22,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:22,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:22,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:22,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079763083] [2024-10-14 03:57:22,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079763083] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:22,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:22,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:57:22,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362527017] [2024-10-14 03:57:22,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:22,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:57:22,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:22,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:57:22,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:57:22,294 INFO L87 Difference]: Start difference. First operand 84447 states and 120845 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:23,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:23,211 INFO L93 Difference]: Finished difference Result 168838 states and 241629 transitions. [2024-10-14 03:57:23,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:57:23,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 03:57:23,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:23,304 INFO L225 Difference]: With dead ends: 168838 [2024-10-14 03:57:23,304 INFO L226 Difference]: Without dead ends: 84447 [2024-10-14 03:57:23,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:23,337 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 694 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:23,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 175 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:23,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84447 states. [2024-10-14 03:57:24,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84447 to 84447. [2024-10-14 03:57:24,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84447 states, 84446 states have (on average 1.4183028207375128) internal successors, (119770), 84446 states have internal predecessors, (119770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:24,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84447 states to 84447 states and 119770 transitions. [2024-10-14 03:57:24,926 INFO L78 Accepts]: Start accepts. Automaton has 84447 states and 119770 transitions. Word has length 125 [2024-10-14 03:57:24,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:24,927 INFO L471 AbstractCegarLoop]: Abstraction has 84447 states and 119770 transitions. [2024-10-14 03:57:24,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:24,927 INFO L276 IsEmpty]: Start isEmpty. Operand 84447 states and 119770 transitions. [2024-10-14 03:57:24,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 03:57:24,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:24,989 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:24,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 03:57:24,990 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:24,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:24,990 INFO L85 PathProgramCache]: Analyzing trace with hash -179417933, now seen corresponding path program 1 times [2024-10-14 03:57:24,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:24,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887193183] [2024-10-14 03:57:24,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:24,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:25,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:25,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:25,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887193183] [2024-10-14 03:57:25,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887193183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:25,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:25,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:25,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751861471] [2024-10-14 03:57:25,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:25,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:25,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:25,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:25,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:25,093 INFO L87 Difference]: Start difference. First operand 84447 states and 119770 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:25,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:25,418 INFO L93 Difference]: Finished difference Result 148931 states and 212124 transitions. [2024-10-14 03:57:25,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:25,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 03:57:25,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:25,494 INFO L225 Difference]: With dead ends: 148931 [2024-10-14 03:57:25,494 INFO L226 Difference]: Without dead ends: 69557 [2024-10-14 03:57:25,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:25,545 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 101 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:25,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 446 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:25,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69557 states. [2024-10-14 03:57:26,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69557 to 69555. [2024-10-14 03:57:26,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69555 states, 69554 states have (on average 1.4204215429738045) internal successors, (98796), 69554 states have internal predecessors, (98796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:26,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69555 states to 69555 states and 98796 transitions. [2024-10-14 03:57:26,633 INFO L78 Accepts]: Start accepts. Automaton has 69555 states and 98796 transitions. Word has length 125 [2024-10-14 03:57:26,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:26,633 INFO L471 AbstractCegarLoop]: Abstraction has 69555 states and 98796 transitions. [2024-10-14 03:57:26,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:26,634 INFO L276 IsEmpty]: Start isEmpty. Operand 69555 states and 98796 transitions. [2024-10-14 03:57:26,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 03:57:26,660 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:26,660 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:26,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 03:57:26,661 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:26,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:26,661 INFO L85 PathProgramCache]: Analyzing trace with hash 756549592, now seen corresponding path program 1 times [2024-10-14 03:57:26,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:26,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185211846] [2024-10-14 03:57:26,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:26,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:26,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:26,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:26,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185211846] [2024-10-14 03:57:26,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185211846] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:26,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:26,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:26,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217981713] [2024-10-14 03:57:26,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:26,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:26,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:26,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:26,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:26,770 INFO L87 Difference]: Start difference. First operand 69555 states and 98796 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:26,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:26,981 INFO L93 Difference]: Finished difference Result 101799 states and 144558 transitions. [2024-10-14 03:57:26,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:26,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 03:57:26,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:27,025 INFO L225 Difference]: With dead ends: 101799 [2024-10-14 03:57:27,025 INFO L226 Difference]: Without dead ends: 35287 [2024-10-14 03:57:27,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:27,066 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 105 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:27,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 432 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:27,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35287 states. [2024-10-14 03:57:27,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35287 to 35285. [2024-10-14 03:57:27,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35285 states, 35284 states have (on average 1.4087971885273778) internal successors, (49708), 35284 states have internal predecessors, (49708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:27,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35285 states to 35285 states and 49708 transitions. [2024-10-14 03:57:27,807 INFO L78 Accepts]: Start accepts. Automaton has 35285 states and 49708 transitions. Word has length 125 [2024-10-14 03:57:27,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:27,808 INFO L471 AbstractCegarLoop]: Abstraction has 35285 states and 49708 transitions. [2024-10-14 03:57:27,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:27,808 INFO L276 IsEmpty]: Start isEmpty. Operand 35285 states and 49708 transitions. [2024-10-14 03:57:27,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 03:57:27,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:27,824 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:27,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 03:57:27,824 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:27,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:27,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1484332499, now seen corresponding path program 1 times [2024-10-14 03:57:27,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:27,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763111205] [2024-10-14 03:57:27,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:27,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:28,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:28,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:28,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763111205] [2024-10-14 03:57:28,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763111205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:28,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:28,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:57:28,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755967554] [2024-10-14 03:57:28,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:28,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:57:28,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:28,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:57:28,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:57:28,112 INFO L87 Difference]: Start difference. First operand 35285 states and 49708 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:28,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:28,742 INFO L93 Difference]: Finished difference Result 87845 states and 123265 transitions. [2024-10-14 03:57:28,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 03:57:28,742 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 03:57:28,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:28,795 INFO L225 Difference]: With dead ends: 87845 [2024-10-14 03:57:28,796 INFO L226 Difference]: Without dead ends: 54358 [2024-10-14 03:57:28,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-14 03:57:28,823 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 903 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:28,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 815 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 03:57:28,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54358 states. [2024-10-14 03:57:29,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54358 to 35360. [2024-10-14 03:57:29,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35360 states, 35359 states have (on average 1.4084108713481716) internal successors, (49800), 35359 states have internal predecessors, (49800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:29,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35360 states to 35360 states and 49800 transitions. [2024-10-14 03:57:29,608 INFO L78 Accepts]: Start accepts. Automaton has 35360 states and 49800 transitions. Word has length 125 [2024-10-14 03:57:29,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:29,608 INFO L471 AbstractCegarLoop]: Abstraction has 35360 states and 49800 transitions. [2024-10-14 03:57:29,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:29,609 INFO L276 IsEmpty]: Start isEmpty. Operand 35360 states and 49800 transitions. [2024-10-14 03:57:29,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 03:57:29,626 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:29,626 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:29,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 03:57:29,627 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:29,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:29,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1587126372, now seen corresponding path program 1 times [2024-10-14 03:57:29,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:29,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922496560] [2024-10-14 03:57:29,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:29,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:29,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:29,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:29,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922496560] [2024-10-14 03:57:29,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922496560] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:29,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:29,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:29,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832440983] [2024-10-14 03:57:29,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:29,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:29,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:29,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:29,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:29,732 INFO L87 Difference]: Start difference. First operand 35360 states and 49800 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:29,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:29,862 INFO L93 Difference]: Finished difference Result 51484 states and 72474 transitions. [2024-10-14 03:57:29,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:29,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 03:57:29,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:29,884 INFO L225 Difference]: With dead ends: 51484 [2024-10-14 03:57:29,884 INFO L226 Difference]: Without dead ends: 18221 [2024-10-14 03:57:29,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:29,907 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 107 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:29,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 417 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:29,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18221 states. [2024-10-14 03:57:30,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18221 to 18219. [2024-10-14 03:57:30,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18219 states, 18218 states have (on average 1.396585794269404) internal successors, (25443), 18218 states have internal predecessors, (25443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:30,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18219 states to 18219 states and 25443 transitions. [2024-10-14 03:57:30,165 INFO L78 Accepts]: Start accepts. Automaton has 18219 states and 25443 transitions. Word has length 125 [2024-10-14 03:57:30,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:30,165 INFO L471 AbstractCegarLoop]: Abstraction has 18219 states and 25443 transitions. [2024-10-14 03:57:30,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:30,166 INFO L276 IsEmpty]: Start isEmpty. Operand 18219 states and 25443 transitions. [2024-10-14 03:57:30,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 03:57:30,175 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:30,175 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:30,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 03:57:30,175 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:30,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:30,176 INFO L85 PathProgramCache]: Analyzing trace with hash -957856959, now seen corresponding path program 1 times [2024-10-14 03:57:30,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:30,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700771711] [2024-10-14 03:57:30,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:30,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:30,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:30,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:30,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700771711] [2024-10-14 03:57:30,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700771711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:30,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:30,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:57:30,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893159511] [2024-10-14 03:57:30,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:30,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:57:30,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:30,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:57:30,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:57:30,495 INFO L87 Difference]: Start difference. First operand 18219 states and 25443 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:31,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:31,174 INFO L93 Difference]: Finished difference Result 53375 states and 74231 transitions. [2024-10-14 03:57:31,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 03:57:31,175 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 03:57:31,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:31,208 INFO L225 Difference]: With dead ends: 53375 [2024-10-14 03:57:31,208 INFO L226 Difference]: Without dead ends: 36407 [2024-10-14 03:57:31,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2024-10-14 03:57:31,215 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 1178 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:31,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 693 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:57:31,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36407 states. [2024-10-14 03:57:31,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36407 to 19021. [2024-10-14 03:57:31,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19021 states, 19020 states have (on average 1.393322818086225) internal successors, (26501), 19020 states have internal predecessors, (26501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:31,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19021 states to 19021 states and 26501 transitions. [2024-10-14 03:57:31,443 INFO L78 Accepts]: Start accepts. Automaton has 19021 states and 26501 transitions. Word has length 125 [2024-10-14 03:57:31,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:31,443 INFO L471 AbstractCegarLoop]: Abstraction has 19021 states and 26501 transitions. [2024-10-14 03:57:31,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:31,443 INFO L276 IsEmpty]: Start isEmpty. Operand 19021 states and 26501 transitions. [2024-10-14 03:57:31,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 03:57:31,450 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:31,450 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:31,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 03:57:31,450 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:31,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:31,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1929862486, now seen corresponding path program 1 times [2024-10-14 03:57:31,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:31,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187489841] [2024-10-14 03:57:31,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:31,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:31,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:31,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:31,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187489841] [2024-10-14 03:57:31,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187489841] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:31,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:31,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:31,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407305557] [2024-10-14 03:57:31,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:31,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:31,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:31,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:31,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:31,547 INFO L87 Difference]: Start difference. First operand 19021 states and 26501 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:31,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:31,600 INFO L93 Difference]: Finished difference Result 27085 states and 37735 transitions. [2024-10-14 03:57:31,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:31,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 03:57:31,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:31,609 INFO L225 Difference]: With dead ends: 27085 [2024-10-14 03:57:31,610 INFO L226 Difference]: Without dead ends: 9851 [2024-10-14 03:57:31,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:31,620 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 80 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:31,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 386 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:31,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9851 states. [2024-10-14 03:57:31,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9851 to 9849. [2024-10-14 03:57:31,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9849 states, 9848 states have (on average 1.3796709991876523) internal successors, (13587), 9848 states have internal predecessors, (13587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:31,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9849 states to 9849 states and 13587 transitions. [2024-10-14 03:57:31,706 INFO L78 Accepts]: Start accepts. Automaton has 9849 states and 13587 transitions. Word has length 125 [2024-10-14 03:57:31,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:31,707 INFO L471 AbstractCegarLoop]: Abstraction has 9849 states and 13587 transitions. [2024-10-14 03:57:31,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:31,707 INFO L276 IsEmpty]: Start isEmpty. Operand 9849 states and 13587 transitions. [2024-10-14 03:57:31,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 03:57:31,712 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:31,712 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:31,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 03:57:31,713 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:31,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:31,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1844283175, now seen corresponding path program 1 times [2024-10-14 03:57:31,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:31,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059683070] [2024-10-14 03:57:31,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:31,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:32,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:32,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:32,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059683070] [2024-10-14 03:57:32,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059683070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:32,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:32,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 03:57:32,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443044514] [2024-10-14 03:57:32,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:32,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 03:57:32,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:32,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 03:57:32,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:57:32,116 INFO L87 Difference]: Start difference. First operand 9849 states and 13587 transitions. Second operand has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 12 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:32,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:32,949 INFO L93 Difference]: Finished difference Result 28789 states and 39593 transitions. [2024-10-14 03:57:32,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 03:57:32,950 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 12 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2024-10-14 03:57:32,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:32,966 INFO L225 Difference]: With dead ends: 28789 [2024-10-14 03:57:32,967 INFO L226 Difference]: Without dead ends: 19723 [2024-10-14 03:57:32,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2024-10-14 03:57:32,971 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 612 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:32,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 1685 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 03:57:32,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19723 states. [2024-10-14 03:57:33,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19723 to 10221. [2024-10-14 03:57:33,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10221 states, 10220 states have (on average 1.3728962818003914) internal successors, (14031), 10220 states have internal predecessors, (14031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:33,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10221 states to 10221 states and 14031 transitions. [2024-10-14 03:57:33,102 INFO L78 Accepts]: Start accepts. Automaton has 10221 states and 14031 transitions. Word has length 125 [2024-10-14 03:57:33,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:33,103 INFO L471 AbstractCegarLoop]: Abstraction has 10221 states and 14031 transitions. [2024-10-14 03:57:33,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.615384615384615) internal successors, (125), 12 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:33,103 INFO L276 IsEmpty]: Start isEmpty. Operand 10221 states and 14031 transitions. [2024-10-14 03:57:33,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 03:57:33,107 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:33,107 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:33,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 03:57:33,107 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:33,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:33,108 INFO L85 PathProgramCache]: Analyzing trace with hash -478762182, now seen corresponding path program 1 times [2024-10-14 03:57:33,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:33,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255297315] [2024-10-14 03:57:33,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:33,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:33,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:33,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:33,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255297315] [2024-10-14 03:57:33,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255297315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:33,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:33,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:33,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373017001] [2024-10-14 03:57:33,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:33,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:33,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:33,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:33,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:33,157 INFO L87 Difference]: Start difference. First operand 10221 states and 14031 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:33,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:33,257 INFO L93 Difference]: Finished difference Result 18923 states and 26104 transitions. [2024-10-14 03:57:33,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:33,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-14 03:57:33,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:33,267 INFO L225 Difference]: With dead ends: 18923 [2024-10-14 03:57:33,268 INFO L226 Difference]: Without dead ends: 9401 [2024-10-14 03:57:33,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:33,275 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 161 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:33,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 209 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:33,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9401 states. [2024-10-14 03:57:33,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9401 to 9401. [2024-10-14 03:57:33,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9401 states, 9400 states have (on average 1.3671276595744681) internal successors, (12851), 9400 states have internal predecessors, (12851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:33,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9401 states to 9401 states and 12851 transitions. [2024-10-14 03:57:33,360 INFO L78 Accepts]: Start accepts. Automaton has 9401 states and 12851 transitions. Word has length 126 [2024-10-14 03:57:33,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:33,360 INFO L471 AbstractCegarLoop]: Abstraction has 9401 states and 12851 transitions. [2024-10-14 03:57:33,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:33,360 INFO L276 IsEmpty]: Start isEmpty. Operand 9401 states and 12851 transitions. [2024-10-14 03:57:33,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 03:57:33,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:33,364 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:33,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 03:57:33,365 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:33,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:33,365 INFO L85 PathProgramCache]: Analyzing trace with hash 2065356652, now seen corresponding path program 1 times [2024-10-14 03:57:33,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:33,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205387166] [2024-10-14 03:57:33,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:33,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:33,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:33,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:33,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205387166] [2024-10-14 03:57:33,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205387166] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:33,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:33,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 03:57:33,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531578615] [2024-10-14 03:57:33,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:33,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 03:57:33,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:33,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 03:57:33,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:57:33,743 INFO L87 Difference]: Start difference. First operand 9401 states and 12851 transitions. Second operand has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 12 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:34,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:34,431 INFO L93 Difference]: Finished difference Result 27607 states and 37637 transitions. [2024-10-14 03:57:34,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 03:57:34,435 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 12 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-14 03:57:34,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:34,453 INFO L225 Difference]: With dead ends: 27607 [2024-10-14 03:57:34,453 INFO L226 Difference]: Without dead ends: 19271 [2024-10-14 03:57:34,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2024-10-14 03:57:34,463 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 745 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:34,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 1139 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 03:57:34,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19271 states. [2024-10-14 03:57:34,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19271 to 9865. [2024-10-14 03:57:34,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9865 states, 9864 states have (on average 1.3622262773722629) internal successors, (13437), 9864 states have internal predecessors, (13437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:34,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9865 states to 9865 states and 13437 transitions. [2024-10-14 03:57:34,602 INFO L78 Accepts]: Start accepts. Automaton has 9865 states and 13437 transitions. Word has length 126 [2024-10-14 03:57:34,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:34,602 INFO L471 AbstractCegarLoop]: Abstraction has 9865 states and 13437 transitions. [2024-10-14 03:57:34,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 12 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:34,602 INFO L276 IsEmpty]: Start isEmpty. Operand 9865 states and 13437 transitions. [2024-10-14 03:57:34,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 03:57:34,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:34,607 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:34,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 03:57:34,607 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:34,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:34,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1340046141, now seen corresponding path program 1 times [2024-10-14 03:57:34,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:34,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721780080] [2024-10-14 03:57:34,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:34,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:34,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:34,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:34,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721780080] [2024-10-14 03:57:34,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721780080] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:34,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:34,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:34,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768416773] [2024-10-14 03:57:34,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:34,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:34,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:34,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:34,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:34,706 INFO L87 Difference]: Start difference. First operand 9865 states and 13437 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:34,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:34,737 INFO L93 Difference]: Finished difference Result 13847 states and 18899 transitions. [2024-10-14 03:57:34,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:34,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-10-14 03:57:34,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:34,743 INFO L225 Difference]: With dead ends: 13847 [2024-10-14 03:57:34,744 INFO L226 Difference]: Without dead ends: 5475 [2024-10-14 03:57:34,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:34,749 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 81 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:34,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 352 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:34,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5475 states. [2024-10-14 03:57:34,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5475 to 5473. [2024-10-14 03:57:34,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5473 states, 5472 states have (on average 1.3408260233918128) internal successors, (7337), 5472 states have internal predecessors, (7337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:34,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5473 states to 5473 states and 7337 transitions. [2024-10-14 03:57:34,801 INFO L78 Accepts]: Start accepts. Automaton has 5473 states and 7337 transitions. Word has length 126 [2024-10-14 03:57:34,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:34,802 INFO L471 AbstractCegarLoop]: Abstraction has 5473 states and 7337 transitions. [2024-10-14 03:57:34,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:34,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states and 7337 transitions. [2024-10-14 03:57:34,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-14 03:57:34,804 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:34,804 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:34,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-14 03:57:34,805 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:34,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:34,805 INFO L85 PathProgramCache]: Analyzing trace with hash 42900973, now seen corresponding path program 1 times [2024-10-14 03:57:34,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:34,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131358357] [2024-10-14 03:57:34,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:34,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:34,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:34,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:34,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131358357] [2024-10-14 03:57:34,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131358357] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:34,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:34,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:57:34,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612779314] [2024-10-14 03:57:34,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:34,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:57:34,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:34,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:57:34,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:57:34,873 INFO L87 Difference]: Start difference. First operand 5473 states and 7337 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:35,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:35,008 INFO L93 Difference]: Finished difference Result 10130 states and 13562 transitions. [2024-10-14 03:57:35,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:57:35,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-10-14 03:57:35,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:35,014 INFO L225 Difference]: With dead ends: 10130 [2024-10-14 03:57:35,014 INFO L226 Difference]: Without dead ends: 6150 [2024-10-14 03:57:35,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:57:35,017 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 130 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:35,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 439 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:35,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2024-10-14 03:57:35,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 5473. [2024-10-14 03:57:35,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5473 states, 5472 states have (on average 1.3408260233918128) internal successors, (7337), 5472 states have internal predecessors, (7337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:35,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5473 states to 5473 states and 7337 transitions. [2024-10-14 03:57:35,060 INFO L78 Accepts]: Start accepts. Automaton has 5473 states and 7337 transitions. Word has length 127 [2024-10-14 03:57:35,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:35,060 INFO L471 AbstractCegarLoop]: Abstraction has 5473 states and 7337 transitions. [2024-10-14 03:57:35,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:35,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5473 states and 7337 transitions. [2024-10-14 03:57:35,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-14 03:57:35,063 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:35,063 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:35,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-14 03:57:35,064 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:35,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:35,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1316768978, now seen corresponding path program 1 times [2024-10-14 03:57:35,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:35,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524946130] [2024-10-14 03:57:35,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:35,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:35,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:35,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:35,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524946130] [2024-10-14 03:57:35,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524946130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:35,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:35,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:57:35,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154004095] [2024-10-14 03:57:35,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:35,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:57:35,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:35,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:57:35,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:57:35,311 INFO L87 Difference]: Start difference. First operand 5473 states and 7337 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:35,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:35,702 INFO L93 Difference]: Finished difference Result 12030 states and 16198 transitions. [2024-10-14 03:57:35,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 03:57:35,703 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-10-14 03:57:35,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:35,709 INFO L225 Difference]: With dead ends: 12030 [2024-10-14 03:57:35,710 INFO L226 Difference]: Without dead ends: 7083 [2024-10-14 03:57:35,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-10-14 03:57:35,714 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 669 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:35,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 974 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:57:35,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7083 states. [2024-10-14 03:57:35,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7083 to 4892. [2024-10-14 03:57:35,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4892 states, 4891 states have (on average 1.3375587814352894) internal successors, (6542), 4891 states have internal predecessors, (6542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:35,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4892 states to 4892 states and 6542 transitions. [2024-10-14 03:57:35,762 INFO L78 Accepts]: Start accepts. Automaton has 4892 states and 6542 transitions. Word has length 127 [2024-10-14 03:57:35,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:35,762 INFO L471 AbstractCegarLoop]: Abstraction has 4892 states and 6542 transitions. [2024-10-14 03:57:35,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:35,763 INFO L276 IsEmpty]: Start isEmpty. Operand 4892 states and 6542 transitions. [2024-10-14 03:57:35,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-10-14 03:57:35,764 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:35,764 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:35,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-14 03:57:35,764 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:35,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:35,765 INFO L85 PathProgramCache]: Analyzing trace with hash -289288680, now seen corresponding path program 1 times [2024-10-14 03:57:35,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:35,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689424287] [2024-10-14 03:57:35,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:35,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:35,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:35,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:35,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689424287] [2024-10-14 03:57:35,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689424287] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:35,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:35,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:57:35,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789133653] [2024-10-14 03:57:35,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:35,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:57:35,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:35,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:57:35,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:57:35,970 INFO L87 Difference]: Start difference. First operand 4892 states and 6542 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:35,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:35,992 INFO L93 Difference]: Finished difference Result 8920 states and 11999 transitions. [2024-10-14 03:57:35,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:57:35,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2024-10-14 03:57:35,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:35,997 INFO L225 Difference]: With dead ends: 8920 [2024-10-14 03:57:35,997 INFO L226 Difference]: Without dead ends: 4879 [2024-10-14 03:57:36,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:57:36,001 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:36,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 653 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:36,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4879 states. [2024-10-14 03:57:36,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4879 to 4879. [2024-10-14 03:57:36,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4879 states, 4878 states have (on average 1.3308733087330873) internal successors, (6492), 4878 states have internal predecessors, (6492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:36,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4879 states to 4879 states and 6492 transitions. [2024-10-14 03:57:36,041 INFO L78 Accepts]: Start accepts. Automaton has 4879 states and 6492 transitions. Word has length 128 [2024-10-14 03:57:36,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:36,041 INFO L471 AbstractCegarLoop]: Abstraction has 4879 states and 6492 transitions. [2024-10-14 03:57:36,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:36,041 INFO L276 IsEmpty]: Start isEmpty. Operand 4879 states and 6492 transitions. [2024-10-14 03:57:36,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 03:57:36,043 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:36,043 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:36,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-14 03:57:36,043 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:36,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:36,043 INFO L85 PathProgramCache]: Analyzing trace with hash -572502854, now seen corresponding path program 1 times [2024-10-14 03:57:36,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:36,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404628028] [2024-10-14 03:57:36,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:36,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:36,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:36,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:36,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404628028] [2024-10-14 03:57:36,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404628028] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:36,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:36,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:36,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916864114] [2024-10-14 03:57:36,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:36,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:36,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:36,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:36,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:36,182 INFO L87 Difference]: Start difference. First operand 4879 states and 6492 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:36,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:36,323 INFO L93 Difference]: Finished difference Result 7723 states and 10360 transitions. [2024-10-14 03:57:36,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:36,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-10-14 03:57:36,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:36,330 INFO L225 Difference]: With dead ends: 7723 [2024-10-14 03:57:36,330 INFO L226 Difference]: Without dead ends: 7073 [2024-10-14 03:57:36,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:36,333 INFO L432 NwaCegarLoop]: 362 mSDtfsCounter, 1256 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:36,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 1067 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:36,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7073 states. [2024-10-14 03:57:36,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7073 to 7065. [2024-10-14 03:57:36,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7065 states, 7064 states have (on average 1.3393261608154021) internal successors, (9461), 7064 states have internal predecessors, (9461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:36,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7065 states to 7065 states and 9461 transitions. [2024-10-14 03:57:36,393 INFO L78 Accepts]: Start accepts. Automaton has 7065 states and 9461 transitions. Word has length 130 [2024-10-14 03:57:36,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:36,393 INFO L471 AbstractCegarLoop]: Abstraction has 7065 states and 9461 transitions. [2024-10-14 03:57:36,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:36,393 INFO L276 IsEmpty]: Start isEmpty. Operand 7065 states and 9461 transitions. [2024-10-14 03:57:36,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 03:57:36,395 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:36,395 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:36,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-14 03:57:36,395 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:36,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:36,395 INFO L85 PathProgramCache]: Analyzing trace with hash 389373469, now seen corresponding path program 1 times [2024-10-14 03:57:36,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:36,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966840631] [2024-10-14 03:57:36,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:36,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:36,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:36,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:36,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966840631] [2024-10-14 03:57:36,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966840631] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:36,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:36,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:36,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185947697] [2024-10-14 03:57:36,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:36,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:36,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:36,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:36,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:36,523 INFO L87 Difference]: Start difference. First operand 7065 states and 9461 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:36,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:36,654 INFO L93 Difference]: Finished difference Result 13401 states and 18074 transitions. [2024-10-14 03:57:36,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:36,655 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-10-14 03:57:36,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:36,664 INFO L225 Difference]: With dead ends: 13401 [2024-10-14 03:57:36,665 INFO L226 Difference]: Without dead ends: 10653 [2024-10-14 03:57:36,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:36,669 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 1117 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:36,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 1154 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:36,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10653 states. [2024-10-14 03:57:36,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10653 to 9549. [2024-10-14 03:57:36,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9549 states, 9548 states have (on average 1.347193129451194) internal successors, (12863), 9548 states have internal predecessors, (12863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:36,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9549 states to 9549 states and 12863 transitions. [2024-10-14 03:57:36,748 INFO L78 Accepts]: Start accepts. Automaton has 9549 states and 12863 transitions. Word has length 130 [2024-10-14 03:57:36,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:36,749 INFO L471 AbstractCegarLoop]: Abstraction has 9549 states and 12863 transitions. [2024-10-14 03:57:36,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:36,749 INFO L276 IsEmpty]: Start isEmpty. Operand 9549 states and 12863 transitions. [2024-10-14 03:57:36,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 03:57:36,751 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:36,751 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:36,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-14 03:57:36,751 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:36,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:36,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1853265216, now seen corresponding path program 1 times [2024-10-14 03:57:36,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:36,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990033482] [2024-10-14 03:57:36,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:36,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:36,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:36,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:36,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990033482] [2024-10-14 03:57:36,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990033482] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:36,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:36,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:36,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275760663] [2024-10-14 03:57:36,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:36,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:36,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:36,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:36,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:36,907 INFO L87 Difference]: Start difference. First operand 9549 states and 12863 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:37,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:37,019 INFO L93 Difference]: Finished difference Result 19609 states and 26579 transitions. [2024-10-14 03:57:37,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:37,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-10-14 03:57:37,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:37,032 INFO L225 Difference]: With dead ends: 19609 [2024-10-14 03:57:37,032 INFO L226 Difference]: Without dead ends: 14413 [2024-10-14 03:57:37,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:37,039 INFO L432 NwaCegarLoop]: 391 mSDtfsCounter, 1106 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:37,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1106 Valid, 1120 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:37,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14413 states. [2024-10-14 03:57:37,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14413 to 11473. [2024-10-14 03:57:37,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11473 states, 11472 states have (on average 1.3498953974895398) internal successors, (15486), 11472 states have internal predecessors, (15486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:37,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11473 states to 11473 states and 15486 transitions. [2024-10-14 03:57:37,148 INFO L78 Accepts]: Start accepts. Automaton has 11473 states and 15486 transitions. Word has length 130 [2024-10-14 03:57:37,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:37,148 INFO L471 AbstractCegarLoop]: Abstraction has 11473 states and 15486 transitions. [2024-10-14 03:57:37,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:37,148 INFO L276 IsEmpty]: Start isEmpty. Operand 11473 states and 15486 transitions. [2024-10-14 03:57:37,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-14 03:57:37,150 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:37,150 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:37,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-14 03:57:37,151 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:37,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:37,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1609973863, now seen corresponding path program 1 times [2024-10-14 03:57:37,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:37,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452613670] [2024-10-14 03:57:37,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:37,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:37,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:37,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:37,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452613670] [2024-10-14 03:57:37,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452613670] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:37,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:37,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:37,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834192201] [2024-10-14 03:57:37,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:37,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:37,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:37,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:37,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:37,202 INFO L87 Difference]: Start difference. First operand 11473 states and 15486 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:37,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:37,259 INFO L93 Difference]: Finished difference Result 27251 states and 36228 transitions. [2024-10-14 03:57:37,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:57:37,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2024-10-14 03:57:37,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:37,276 INFO L225 Difference]: With dead ends: 27251 [2024-10-14 03:57:37,276 INFO L226 Difference]: Without dead ends: 16825 [2024-10-14 03:57:37,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:37,285 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 50 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:37,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 457 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:37,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16825 states. [2024-10-14 03:57:37,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16825 to 16163. [2024-10-14 03:57:37,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16163 states, 16162 states have (on average 1.2865363197624056) internal successors, (20793), 16162 states have internal predecessors, (20793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:37,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16163 states to 16163 states and 20793 transitions. [2024-10-14 03:57:37,441 INFO L78 Accepts]: Start accepts. Automaton has 16163 states and 20793 transitions. Word has length 130 [2024-10-14 03:57:37,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:37,442 INFO L471 AbstractCegarLoop]: Abstraction has 16163 states and 20793 transitions. [2024-10-14 03:57:37,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:37,442 INFO L276 IsEmpty]: Start isEmpty. Operand 16163 states and 20793 transitions. [2024-10-14 03:57:37,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 03:57:37,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:37,444 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:37,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-14 03:57:37,444 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:37,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:37,445 INFO L85 PathProgramCache]: Analyzing trace with hash 840284900, now seen corresponding path program 1 times [2024-10-14 03:57:37,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:37,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832247449] [2024-10-14 03:57:37,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:37,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:37,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:37,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:37,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832247449] [2024-10-14 03:57:37,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832247449] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:37,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:37,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:37,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841548979] [2024-10-14 03:57:37,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:37,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:37,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:37,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:37,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:37,630 INFO L87 Difference]: Start difference. First operand 16163 states and 20793 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:37,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:37,770 INFO L93 Difference]: Finished difference Result 37885 states and 49060 transitions. [2024-10-14 03:57:37,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:37,770 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-14 03:57:37,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:37,798 INFO L225 Difference]: With dead ends: 37885 [2024-10-14 03:57:37,798 INFO L226 Difference]: Without dead ends: 27693 [2024-10-14 03:57:37,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:37,811 INFO L432 NwaCegarLoop]: 426 mSDtfsCounter, 1037 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:37,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 1134 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:37,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27693 states. [2024-10-14 03:57:38,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27693 to 27677. [2024-10-14 03:57:38,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27677 states, 27676 states have (on average 1.292419424772366) internal successors, (35769), 27676 states have internal predecessors, (35769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:38,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27677 states to 27677 states and 35769 transitions. [2024-10-14 03:57:38,076 INFO L78 Accepts]: Start accepts. Automaton has 27677 states and 35769 transitions. Word has length 131 [2024-10-14 03:57:38,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:38,076 INFO L471 AbstractCegarLoop]: Abstraction has 27677 states and 35769 transitions. [2024-10-14 03:57:38,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:38,077 INFO L276 IsEmpty]: Start isEmpty. Operand 27677 states and 35769 transitions. [2024-10-14 03:57:38,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 03:57:38,079 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:38,079 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:38,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-14 03:57:38,079 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:38,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:38,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1402353785, now seen corresponding path program 1 times [2024-10-14 03:57:38,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:38,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568685214] [2024-10-14 03:57:38,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:38,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:38,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:38,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:38,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568685214] [2024-10-14 03:57:38,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568685214] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:38,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:38,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:38,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503422203] [2024-10-14 03:57:38,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:38,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:38,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:38,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:38,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:38,215 INFO L87 Difference]: Start difference. First operand 27677 states and 35769 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:38,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:38,424 INFO L93 Difference]: Finished difference Result 73297 states and 95144 transitions. [2024-10-14 03:57:38,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:38,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-14 03:57:38,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:38,481 INFO L225 Difference]: With dead ends: 73297 [2024-10-14 03:57:38,481 INFO L226 Difference]: Without dead ends: 51605 [2024-10-14 03:57:38,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:38,506 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 1088 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:38,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 1153 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:38,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51605 states. [2024-10-14 03:57:38,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51605 to 51049. [2024-10-14 03:57:39,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51049 states, 51048 states have (on average 1.2961330512458862) internal successors, (66165), 51048 states have internal predecessors, (66165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:39,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51049 states to 51049 states and 66165 transitions. [2024-10-14 03:57:39,078 INFO L78 Accepts]: Start accepts. Automaton has 51049 states and 66165 transitions. Word has length 131 [2024-10-14 03:57:39,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:39,078 INFO L471 AbstractCegarLoop]: Abstraction has 51049 states and 66165 transitions. [2024-10-14 03:57:39,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:39,078 INFO L276 IsEmpty]: Start isEmpty. Operand 51049 states and 66165 transitions. [2024-10-14 03:57:39,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 03:57:39,081 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:39,081 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:39,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-14 03:57:39,081 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:39,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:39,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1648958844, now seen corresponding path program 1 times [2024-10-14 03:57:39,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:39,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560969950] [2024-10-14 03:57:39,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:39,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:39,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:39,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:39,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560969950] [2024-10-14 03:57:39,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560969950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:39,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:39,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:39,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182610546] [2024-10-14 03:57:39,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:39,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:39,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:39,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:39,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:39,200 INFO L87 Difference]: Start difference. First operand 51049 states and 66165 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:39,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:39,447 INFO L93 Difference]: Finished difference Result 105175 states and 136666 transitions. [2024-10-14 03:57:39,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:39,448 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-14 03:57:39,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:39,512 INFO L225 Difference]: With dead ends: 105175 [2024-10-14 03:57:39,512 INFO L226 Difference]: Without dead ends: 60171 [2024-10-14 03:57:39,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:39,546 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 995 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:39,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1203 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:39,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60171 states. [2024-10-14 03:57:40,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60171 to 56053. [2024-10-14 03:57:40,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56053 states, 56052 states have (on average 1.2965995860986228) internal successors, (72677), 56052 states have internal predecessors, (72677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:40,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56053 states to 56053 states and 72677 transitions. [2024-10-14 03:57:40,281 INFO L78 Accepts]: Start accepts. Automaton has 56053 states and 72677 transitions. Word has length 131 [2024-10-14 03:57:40,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:40,281 INFO L471 AbstractCegarLoop]: Abstraction has 56053 states and 72677 transitions. [2024-10-14 03:57:40,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:40,282 INFO L276 IsEmpty]: Start isEmpty. Operand 56053 states and 72677 transitions. [2024-10-14 03:57:40,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 03:57:40,284 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:40,284 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:40,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-14 03:57:40,284 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:40,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:40,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1215200871, now seen corresponding path program 1 times [2024-10-14 03:57:40,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:40,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73054918] [2024-10-14 03:57:40,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:40,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:40,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:40,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:40,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73054918] [2024-10-14 03:57:40,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73054918] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:40,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:40,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:40,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704093649] [2024-10-14 03:57:40,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:40,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:40,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:40,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:40,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:40,407 INFO L87 Difference]: Start difference. First operand 56053 states and 72677 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:40,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:40,662 INFO L93 Difference]: Finished difference Result 112267 states and 145810 transitions. [2024-10-14 03:57:40,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:40,663 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-14 03:57:40,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:40,727 INFO L225 Difference]: With dead ends: 112267 [2024-10-14 03:57:40,727 INFO L226 Difference]: Without dead ends: 62229 [2024-10-14 03:57:40,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:40,765 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 1038 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:40,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 999 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:40,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62229 states. [2024-10-14 03:57:41,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62229 to 62217. [2024-10-14 03:57:41,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62217 states, 62216 states have (on average 1.2970939951137972) internal successors, (80700), 62216 states have internal predecessors, (80700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:41,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62217 states to 62217 states and 80700 transitions. [2024-10-14 03:57:41,806 INFO L78 Accepts]: Start accepts. Automaton has 62217 states and 80700 transitions. Word has length 131 [2024-10-14 03:57:41,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:41,806 INFO L471 AbstractCegarLoop]: Abstraction has 62217 states and 80700 transitions. [2024-10-14 03:57:41,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:41,806 INFO L276 IsEmpty]: Start isEmpty. Operand 62217 states and 80700 transitions. [2024-10-14 03:57:41,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 03:57:41,808 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:41,808 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:41,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-14 03:57:41,808 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:41,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:41,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1027437814, now seen corresponding path program 1 times [2024-10-14 03:57:41,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:41,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237444020] [2024-10-14 03:57:41,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:41,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:41,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:41,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:41,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237444020] [2024-10-14 03:57:41,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237444020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:41,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:41,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:41,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635891455] [2024-10-14 03:57:41,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:41,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:41,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:41,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:41,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:41,935 INFO L87 Difference]: Start difference. First operand 62217 states and 80700 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:42,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:42,241 INFO L93 Difference]: Finished difference Result 131997 states and 171501 transitions. [2024-10-14 03:57:42,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:42,242 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-14 03:57:42,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:42,328 INFO L225 Difference]: With dead ends: 131997 [2024-10-14 03:57:42,328 INFO L226 Difference]: Without dead ends: 75761 [2024-10-14 03:57:42,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:42,372 INFO L432 NwaCegarLoop]: 383 mSDtfsCounter, 1129 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:42,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 1123 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:42,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75761 states. [2024-10-14 03:57:43,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75761 to 75479. [2024-10-14 03:57:43,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75479 states, 75478 states have (on average 1.2978218818728635) internal successors, (97957), 75478 states have internal predecessors, (97957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:43,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75479 states to 75479 states and 97957 transitions. [2024-10-14 03:57:43,479 INFO L78 Accepts]: Start accepts. Automaton has 75479 states and 97957 transitions. Word has length 131 [2024-10-14 03:57:43,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:43,479 INFO L471 AbstractCegarLoop]: Abstraction has 75479 states and 97957 transitions. [2024-10-14 03:57:43,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:43,480 INFO L276 IsEmpty]: Start isEmpty. Operand 75479 states and 97957 transitions. [2024-10-14 03:57:43,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 03:57:43,482 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:43,482 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:43,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-14 03:57:43,482 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:43,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:43,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1274042873, now seen corresponding path program 1 times [2024-10-14 03:57:43,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:43,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624405528] [2024-10-14 03:57:43,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:43,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:43,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:43,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:43,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624405528] [2024-10-14 03:57:43,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624405528] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:43,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:43,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:43,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299376716] [2024-10-14 03:57:43,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:43,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:43,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:43,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:43,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:43,597 INFO L87 Difference]: Start difference. First operand 75479 states and 97957 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:44,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:44,372 INFO L93 Difference]: Finished difference Result 150065 states and 195054 transitions. [2024-10-14 03:57:44,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:44,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-14 03:57:44,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:44,451 INFO L225 Difference]: With dead ends: 150065 [2024-10-14 03:57:44,451 INFO L226 Difference]: Without dead ends: 80555 [2024-10-14 03:57:44,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:44,488 INFO L432 NwaCegarLoop]: 464 mSDtfsCounter, 993 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:44,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 1355 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:44,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80555 states. [2024-10-14 03:57:45,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80555 to 77259. [2024-10-14 03:57:45,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77259 states, 77258 states have (on average 1.2978720650288644) internal successors, (100271), 77258 states have internal predecessors, (100271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:45,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77259 states to 77259 states and 100271 transitions. [2024-10-14 03:57:45,652 INFO L78 Accepts]: Start accepts. Automaton has 77259 states and 100271 transitions. Word has length 131 [2024-10-14 03:57:45,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:45,652 INFO L471 AbstractCegarLoop]: Abstraction has 77259 states and 100271 transitions. [2024-10-14 03:57:45,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:45,653 INFO L276 IsEmpty]: Start isEmpty. Operand 77259 states and 100271 transitions. [2024-10-14 03:57:45,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 03:57:45,656 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:45,656 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:45,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-14 03:57:45,656 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:45,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:45,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1219821226, now seen corresponding path program 1 times [2024-10-14 03:57:45,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:45,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608704761] [2024-10-14 03:57:45,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:45,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:45,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:45,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:45,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608704761] [2024-10-14 03:57:45,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608704761] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:45,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:45,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:57:45,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736376299] [2024-10-14 03:57:45,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:45,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:57:45,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:45,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:57:45,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:57:45,769 INFO L87 Difference]: Start difference. First operand 77259 states and 100271 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:46,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:46,131 INFO L93 Difference]: Finished difference Result 155577 states and 202168 transitions. [2024-10-14 03:57:46,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:57:46,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2024-10-14 03:57:46,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:46,222 INFO L225 Difference]: With dead ends: 155577 [2024-10-14 03:57:46,222 INFO L226 Difference]: Without dead ends: 84257 [2024-10-14 03:57:46,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:57:46,273 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 1006 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 1269 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:46,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 1269 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:57:46,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84257 states. [2024-10-14 03:57:47,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84257 to 84245. [2024-10-14 03:57:47,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84245 states, 84244 states have (on average 1.298300175680167) internal successors, (109374), 84244 states have internal predecessors, (109374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:47,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84245 states to 84245 states and 109374 transitions. [2024-10-14 03:57:47,561 INFO L78 Accepts]: Start accepts. Automaton has 84245 states and 109374 transitions. Word has length 131 [2024-10-14 03:57:47,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:47,561 INFO L471 AbstractCegarLoop]: Abstraction has 84245 states and 109374 transitions. [2024-10-14 03:57:47,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 7 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:47,561 INFO L276 IsEmpty]: Start isEmpty. Operand 84245 states and 109374 transitions. [2024-10-14 03:57:47,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-14 03:57:47,563 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:47,563 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:47,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-10-14 03:57:47,563 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:47,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:47,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1178890498, now seen corresponding path program 1 times [2024-10-14 03:57:47,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:47,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694810904] [2024-10-14 03:57:47,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:47,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:47,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:47,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:47,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694810904] [2024-10-14 03:57:47,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694810904] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:47,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:47,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:57:47,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216000632] [2024-10-14 03:57:47,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:47,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:57:47,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:47,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:57:47,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:57:47,721 INFO L87 Difference]: Start difference. First operand 84245 states and 109374 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:47,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:57:47,864 INFO L93 Difference]: Finished difference Result 86223 states and 112339 transitions. [2024-10-14 03:57:47,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:57:47,864 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2024-10-14 03:57:47,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:57:47,949 INFO L225 Difference]: With dead ends: 86223 [2024-10-14 03:57:47,949 INFO L226 Difference]: Without dead ends: 86221 [2024-10-14 03:57:47,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:57:47,975 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 0 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:57:47,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1057 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:57:48,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86221 states. [2024-10-14 03:57:48,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86221 to 86221. [2024-10-14 03:57:49,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86221 states, 86220 states have (on average 1.2876130828114127) internal successors, (111018), 86220 states have internal predecessors, (111018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:49,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86221 states to 86221 states and 111018 transitions. [2024-10-14 03:57:49,140 INFO L78 Accepts]: Start accepts. Automaton has 86221 states and 111018 transitions. Word has length 132 [2024-10-14 03:57:49,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:57:49,140 INFO L471 AbstractCegarLoop]: Abstraction has 86221 states and 111018 transitions. [2024-10-14 03:57:49,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:57:49,140 INFO L276 IsEmpty]: Start isEmpty. Operand 86221 states and 111018 transitions. [2024-10-14 03:57:49,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-14 03:57:49,142 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:57:49,142 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:57:49,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-10-14 03:57:49,143 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:57:49,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:57:49,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1817490374, now seen corresponding path program 1 times [2024-10-14 03:57:49,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:57:49,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389443515] [2024-10-14 03:57:49,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:57:49,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:57:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:57:49,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:57:49,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:57:49,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389443515] [2024-10-14 03:57:49,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389443515] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:57:49,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:57:49,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:57:49,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982935352] [2024-10-14 03:57:49,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:57:49,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:57:49,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:57:49,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:57:49,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:57:49,194 INFO L87 Difference]: Start difference. First operand 86221 states and 111018 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)