./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-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0df39af5bb0da8e3087f1622629197ff07999529140b31d9eb8577cc8820a051 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:43:26,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:43:26,255 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:43:26,261 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:43:26,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:43:26,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:43:26,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:43:26,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:43:26,303 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:43:26,304 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:43:26,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:43:26,306 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:43:26,306 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:43:26,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:43:26,308 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:43:26,309 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:43:26,309 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:43:26,309 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:43:26,309 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:43:26,310 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:43:26,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:43:26,313 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:43:26,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:43:26,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:43:26,313 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:43:26,313 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:43:26,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:43:26,314 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:43:26,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:43:26,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:43:26,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:43:26,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:43:26,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:43:26,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:43:26,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:43:26,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:43:26,316 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:43:26,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:43:26,319 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:43:26,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:43:26,319 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:43:26,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:43:26,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0df39af5bb0da8e3087f1622629197ff07999529140b31d9eb8577cc8820a051 [2024-10-24 01:43:26,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:43:26,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:43:26,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:43:26,613 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:43:26,613 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:43:26,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-24 01:43:28,044 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:43:28,314 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:43:28,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-24 01:43:28,338 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdfa81aa4/818143cbc5f942859b22448478a31b44/FLAGcee2f18d4 [2024-10-24 01:43:28,355 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdfa81aa4/818143cbc5f942859b22448478a31b44 [2024-10-24 01:43:28,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:43:28,359 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:43:28,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:43:28,363 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:43:28,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:43:28,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:43:28" (1/1) ... [2024-10-24 01:43:28,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4817af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:28, skipping insertion in model container [2024-10-24 01:43:28,370 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:43:28" (1/1) ... [2024-10-24 01:43:28,420 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:43:28,695 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-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7105,7118] [2024-10-24 01:43:28,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:43:28,774 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:43:28,829 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-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[7105,7118] [2024-10-24 01:43:28,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:43:28,878 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:43:28,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:28 WrapperNode [2024-10-24 01:43:28,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:43:28,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:43:28,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:43:28,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:43:28,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:28" (1/1) ... [2024-10-24 01:43:28,901 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:28" (1/1) ... [2024-10-24 01:43:28,943 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 721 [2024-10-24 01:43:28,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:43:28,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:43:28,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:43:28,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:43:28,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:28" (1/1) ... [2024-10-24 01:43:28,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:28" (1/1) ... [2024-10-24 01:43:28,959 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:28" (1/1) ... [2024-10-24 01:43:28,984 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]. [2024-10-24 01:43:28,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:28" (1/1) ... [2024-10-24 01:43:28,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:28" (1/1) ... [2024-10-24 01:43:28,995 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:28" (1/1) ... [2024-10-24 01:43:28,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:28" (1/1) ... [2024-10-24 01:43:29,002 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:28" (1/1) ... [2024-10-24 01:43:29,004 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:28" (1/1) ... [2024-10-24 01:43:29,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:43:29,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:43:29,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:43:29,011 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:43:29,014 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:28" (1/1) ... [2024-10-24 01:43:29,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:43:29,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:43:29,059 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) [2024-10-24 01:43:29,063 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 [2024-10-24 01:43:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:43:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:43:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:43:29,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:43:29,216 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:43:29,218 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:43:29,905 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-10-24 01:43:29,906 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:43:29,949 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:43:29,950 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 01:43:29,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:43:29 BoogieIcfgContainer [2024-10-24 01:43:29,951 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:43:29,953 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:43:29,953 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:43:29,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:43:29,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:43:28" (1/3) ... [2024-10-24 01:43:29,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d5c65e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:43:29, skipping insertion in model container [2024-10-24 01:43:29,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:43:28" (2/3) ... [2024-10-24 01:43:29,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d5c65e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:43:29, skipping insertion in model container [2024-10-24 01:43:29,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:43:29" (3/3) ... [2024-10-24 01:43:29,959 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-10-24 01:43:29,975 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:43:29,975 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:43:30,038 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:43:30,044 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;@311f777b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:43:30,048 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:43:30,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 175 states have (on average 1.7257142857142858) internal successors, (302), 176 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:30,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-24 01:43:30,063 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:30,066 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] [2024-10-24 01:43:30,066 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:30,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:30,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1323163456, now seen corresponding path program 1 times [2024-10-24 01:43:30,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:30,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108517764] [2024-10-24 01:43:30,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:30,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:30,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:30,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:30,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108517764] [2024-10-24 01:43:30,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108517764] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:30,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:30,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:30,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286733930] [2024-10-24 01:43:30,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:30,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:43:30,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:30,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:43:30,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:43:30,723 INFO L87 Difference]: Start difference. First operand has 177 states, 175 states have (on average 1.7257142857142858) internal successors, (302), 176 states have internal predecessors, (302), 0 states have call successors, (0), 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 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:30,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:30,958 INFO L93 Difference]: Finished difference Result 632 states and 1027 transitions. [2024-10-24 01:43:30,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:43:30,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-10-24 01:43:30,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:30,983 INFO L225 Difference]: With dead ends: 632 [2024-10-24 01:43:30,984 INFO L226 Difference]: Without dead ends: 539 [2024-10-24 01:43:30,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:30,992 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 1594 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:30,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 1095 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:43:31,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-10-24 01:43:31,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 273. [2024-10-24 01:43:31,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 272 states have (on average 1.5147058823529411) internal successors, (412), 272 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:31,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 412 transitions. [2024-10-24 01:43:31,054 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 412 transitions. Word has length 63 [2024-10-24 01:43:31,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:31,055 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 412 transitions. [2024-10-24 01:43:31,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:31,057 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 412 transitions. [2024-10-24 01:43:31,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-24 01:43:31,059 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:31,059 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] [2024-10-24 01:43:31,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:43:31,060 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:31,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:31,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1651716700, now seen corresponding path program 1 times [2024-10-24 01:43:31,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:31,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768500974] [2024-10-24 01:43:31,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:31,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:31,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:31,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:31,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768500974] [2024-10-24 01:43:31,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768500974] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:31,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:31,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:31,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729417404] [2024-10-24 01:43:31,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:31,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:43:31,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:31,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:43:31,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:43:31,339 INFO L87 Difference]: Start difference. First operand 273 states and 412 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:31,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:31,544 INFO L93 Difference]: Finished difference Result 1011 states and 1564 transitions. [2024-10-24 01:43:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:43:31,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-10-24 01:43:31,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:31,548 INFO L225 Difference]: With dead ends: 1011 [2024-10-24 01:43:31,549 INFO L226 Difference]: Without dead ends: 799 [2024-10-24 01:43:31,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:43:31,554 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 934 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:31,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 894 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:31,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-10-24 01:43:31,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 793. [2024-10-24 01:43:31,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 792 states have (on average 1.5366161616161615) internal successors, (1217), 792 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:31,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1217 transitions. [2024-10-24 01:43:31,604 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1217 transitions. Word has length 64 [2024-10-24 01:43:31,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:31,604 INFO L471 AbstractCegarLoop]: Abstraction has 793 states and 1217 transitions. [2024-10-24 01:43:31,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:31,605 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1217 transitions. [2024-10-24 01:43:31,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-24 01:43:31,610 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:31,610 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] [2024-10-24 01:43:31,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:43:31,611 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:31,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:31,612 INFO L85 PathProgramCache]: Analyzing trace with hash -61672826, now seen corresponding path program 1 times [2024-10-24 01:43:31,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:31,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997790458] [2024-10-24 01:43:31,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:31,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:31,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:31,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:31,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997790458] [2024-10-24 01:43:31,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997790458] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:31,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:31,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:43:31,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219792397] [2024-10-24 01:43:31,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:31,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:43:31,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:31,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:43:31,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:31,803 INFO L87 Difference]: Start difference. First operand 793 states and 1217 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:32,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:32,065 INFO L93 Difference]: Finished difference Result 2125 states and 3303 transitions. [2024-10-24 01:43:32,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:43:32,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-10-24 01:43:32,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:32,072 INFO L225 Difference]: With dead ends: 2125 [2024-10-24 01:43:32,072 INFO L226 Difference]: Without dead ends: 1381 [2024-10-24 01:43:32,075 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 [2024-10-24 01:43:32,076 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1001 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:32,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 244 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:32,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2024-10-24 01:43:32,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1379. [2024-10-24 01:43:32,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1379 states, 1378 states have (on average 1.5457184325108853) internal successors, (2130), 1378 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:32,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 2130 transitions. [2024-10-24 01:43:32,116 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 2130 transitions. Word has length 65 [2024-10-24 01:43:32,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:32,117 INFO L471 AbstractCegarLoop]: Abstraction has 1379 states and 2130 transitions. [2024-10-24 01:43:32,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:32,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 2130 transitions. [2024-10-24 01:43:32,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-24 01:43:32,121 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:32,121 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] [2024-10-24 01:43:32,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:43:32,122 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:32,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:32,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1309679336, now seen corresponding path program 1 times [2024-10-24 01:43:32,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:32,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237910235] [2024-10-24 01:43:32,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:32,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:32,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:32,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:32,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237910235] [2024-10-24 01:43:32,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237910235] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:32,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:32,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:43:32,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949468141] [2024-10-24 01:43:32,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:32,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:43:32,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:32,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:43:32,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:32,308 INFO L87 Difference]: Start difference. First operand 1379 states and 2130 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:32,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:32,535 INFO L93 Difference]: Finished difference Result 3711 states and 5788 transitions. [2024-10-24 01:43:32,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:43:32,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-10-24 01:43:32,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:32,545 INFO L225 Difference]: With dead ends: 3711 [2024-10-24 01:43:32,545 INFO L226 Difference]: Without dead ends: 2431 [2024-10-24 01:43:32,549 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 [2024-10-24 01:43:32,550 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 927 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:32,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 250 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:32,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2024-10-24 01:43:32,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2429. [2024-10-24 01:43:32,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2429 states, 2428 states have (on average 1.5502471169686984) internal successors, (3764), 2428 states have internal predecessors, (3764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:32,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2429 states to 2429 states and 3764 transitions. [2024-10-24 01:43:32,598 INFO L78 Accepts]: Start accepts. Automaton has 2429 states and 3764 transitions. Word has length 65 [2024-10-24 01:43:32,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:32,598 INFO L471 AbstractCegarLoop]: Abstraction has 2429 states and 3764 transitions. [2024-10-24 01:43:32,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:32,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2429 states and 3764 transitions. [2024-10-24 01:43:32,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-24 01:43:32,601 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:32,601 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] [2024-10-24 01:43:32,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:43:32,601 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:32,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:32,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1039716905, now seen corresponding path program 1 times [2024-10-24 01:43:32,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:32,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115607731] [2024-10-24 01:43:32,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:32,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:32,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:32,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:32,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115607731] [2024-10-24 01:43:32,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115607731] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:32,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:32,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:43:32,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017894691] [2024-10-24 01:43:32,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:32,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:43:32,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:32,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:43:32,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:32,765 INFO L87 Difference]: Start difference. First operand 2429 states and 3764 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:32,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:32,993 INFO L93 Difference]: Finished difference Result 6932 states and 10799 transitions. [2024-10-24 01:43:32,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:43:32,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-10-24 01:43:32,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:33,008 INFO L225 Difference]: With dead ends: 6932 [2024-10-24 01:43:33,009 INFO L226 Difference]: Without dead ends: 4575 [2024-10-24 01:43:33,014 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 [2024-10-24 01:43:33,015 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 953 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:33,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 248 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:33,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4575 states. [2024-10-24 01:43:33,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4575 to 4573. [2024-10-24 01:43:33,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4573 states, 4572 states have (on average 1.5485564304461943) internal successors, (7080), 4572 states have internal predecessors, (7080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:33,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4573 states to 4573 states and 7080 transitions. [2024-10-24 01:43:33,100 INFO L78 Accepts]: Start accepts. Automaton has 4573 states and 7080 transitions. Word has length 65 [2024-10-24 01:43:33,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:33,100 INFO L471 AbstractCegarLoop]: Abstraction has 4573 states and 7080 transitions. [2024-10-24 01:43:33,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:33,101 INFO L276 IsEmpty]: Start isEmpty. Operand 4573 states and 7080 transitions. [2024-10-24 01:43:33,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-24 01:43:33,102 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:33,102 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] [2024-10-24 01:43:33,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:43:33,102 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:33,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:33,103 INFO L85 PathProgramCache]: Analyzing trace with hash 641592565, now seen corresponding path program 1 times [2024-10-24 01:43:33,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:33,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213135147] [2024-10-24 01:43:33,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:33,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:33,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:33,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:33,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213135147] [2024-10-24 01:43:33,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213135147] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:33,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:33,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:43:33,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632286207] [2024-10-24 01:43:33,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:33,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:43:33,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:33,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:43:33,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:33,240 INFO L87 Difference]: Start difference. First operand 4573 states and 7080 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:33,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:33,492 INFO L93 Difference]: Finished difference Result 12539 states and 19465 transitions. [2024-10-24 01:43:33,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:43:33,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-10-24 01:43:33,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:33,551 INFO L225 Difference]: With dead ends: 12539 [2024-10-24 01:43:33,552 INFO L226 Difference]: Without dead ends: 7999 [2024-10-24 01:43:33,558 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 [2024-10-24 01:43:33,559 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1015 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:33,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 242 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:33,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7999 states. [2024-10-24 01:43:33,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7999 to 7997. [2024-10-24 01:43:33,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7997 states, 7996 states have (on average 1.539144572286143) internal successors, (12307), 7996 states have internal predecessors, (12307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:33,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7997 states to 7997 states and 12307 transitions. [2024-10-24 01:43:33,721 INFO L78 Accepts]: Start accepts. Automaton has 7997 states and 12307 transitions. Word has length 65 [2024-10-24 01:43:33,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:33,721 INFO L471 AbstractCegarLoop]: Abstraction has 7997 states and 12307 transitions. [2024-10-24 01:43:33,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:33,722 INFO L276 IsEmpty]: Start isEmpty. Operand 7997 states and 12307 transitions. [2024-10-24 01:43:33,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-24 01:43:33,724 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:33,724 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] [2024-10-24 01:43:33,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:43:33,724 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:33,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:33,725 INFO L85 PathProgramCache]: Analyzing trace with hash 727550024, now seen corresponding path program 1 times [2024-10-24 01:43:33,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:33,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194976742] [2024-10-24 01:43:33,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:33,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:34,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:34,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:34,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194976742] [2024-10-24 01:43:34,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194976742] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:34,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:34,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:43:34,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812620353] [2024-10-24 01:43:34,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:34,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:43:34,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:34,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:43:34,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:34,072 INFO L87 Difference]: Start difference. First operand 7997 states and 12307 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:34,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:34,124 INFO L93 Difference]: Finished difference Result 8223 states and 12644 transitions. [2024-10-24 01:43:34,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:43:34,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-10-24 01:43:34,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:34,152 INFO L225 Difference]: With dead ends: 8223 [2024-10-24 01:43:34,153 INFO L226 Difference]: Without dead ends: 8221 [2024-10-24 01:43:34,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:43:34,158 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:34,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 965 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:34,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8221 states. [2024-10-24 01:43:34,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8221 to 8221. [2024-10-24 01:43:34,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8221 states, 8220 states have (on average 1.5244525547445256) internal successors, (12531), 8220 states have internal predecessors, (12531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:34,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8221 states to 8221 states and 12531 transitions. [2024-10-24 01:43:34,299 INFO L78 Accepts]: Start accepts. Automaton has 8221 states and 12531 transitions. Word has length 66 [2024-10-24 01:43:34,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:34,300 INFO L471 AbstractCegarLoop]: Abstraction has 8221 states and 12531 transitions. [2024-10-24 01:43:34,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:34,300 INFO L276 IsEmpty]: Start isEmpty. Operand 8221 states and 12531 transitions. [2024-10-24 01:43:34,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-24 01:43:34,302 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:34,302 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] [2024-10-24 01:43:34,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:43:34,303 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:34,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:34,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1358621374, now seen corresponding path program 1 times [2024-10-24 01:43:34,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:34,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848518614] [2024-10-24 01:43:34,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:34,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:34,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:34,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:34,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848518614] [2024-10-24 01:43:34,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848518614] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:34,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:34,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:43:34,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032754473] [2024-10-24 01:43:34,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:34,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:43:34,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:34,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:43:34,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:34,691 INFO L87 Difference]: Start difference. First operand 8221 states and 12531 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:35,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:35,387 INFO L93 Difference]: Finished difference Result 18059 states and 27326 transitions. [2024-10-24 01:43:35,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 01:43:35,388 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-10-24 01:43:35,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:35,413 INFO L225 Difference]: With dead ends: 18059 [2024-10-24 01:43:35,413 INFO L226 Difference]: Without dead ends: 12245 [2024-10-24 01:43:35,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-24 01:43:35,425 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1173 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:35,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 776 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 01:43:35,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12245 states. [2024-10-24 01:43:35,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12245 to 8354. [2024-10-24 01:43:35,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8354 states, 8353 states have (on average 1.5211301328863882) internal successors, (12706), 8353 states have internal predecessors, (12706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:35,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8354 states to 8354 states and 12706 transitions. [2024-10-24 01:43:35,664 INFO L78 Accepts]: Start accepts. Automaton has 8354 states and 12706 transitions. Word has length 67 [2024-10-24 01:43:35,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:35,665 INFO L471 AbstractCegarLoop]: Abstraction has 8354 states and 12706 transitions. [2024-10-24 01:43:35,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:35,666 INFO L276 IsEmpty]: Start isEmpty. Operand 8354 states and 12706 transitions. [2024-10-24 01:43:35,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-24 01:43:35,668 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:35,668 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] [2024-10-24 01:43:35,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:43:35,668 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:35,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:35,669 INFO L85 PathProgramCache]: Analyzing trace with hash 984808062, now seen corresponding path program 1 times [2024-10-24 01:43:35,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:35,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127519715] [2024-10-24 01:43:35,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:35,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:36,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:36,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:36,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127519715] [2024-10-24 01:43:36,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127519715] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:36,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:36,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:43:36,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032593513] [2024-10-24 01:43:36,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:36,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:43:36,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:36,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:43:36,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:36,003 INFO L87 Difference]: Start difference. First operand 8354 states and 12706 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:36,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:36,650 INFO L93 Difference]: Finished difference Result 11078 states and 16717 transitions. [2024-10-24 01:43:36,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 01:43:36,651 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-10-24 01:43:36,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:36,666 INFO L225 Difference]: With dead ends: 11078 [2024-10-24 01:43:36,667 INFO L226 Difference]: Without dead ends: 9771 [2024-10-24 01:43:36,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-10-24 01:43:36,672 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 968 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:36,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 765 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 01:43:36,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9771 states. [2024-10-24 01:43:36,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9771 to 8354. [2024-10-24 01:43:36,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8354 states, 8353 states have (on average 1.5208906979528314) internal successors, (12704), 8353 states have internal predecessors, (12704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:36,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8354 states to 8354 states and 12704 transitions. [2024-10-24 01:43:36,786 INFO L78 Accepts]: Start accepts. Automaton has 8354 states and 12704 transitions. Word has length 67 [2024-10-24 01:43:36,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:36,786 INFO L471 AbstractCegarLoop]: Abstraction has 8354 states and 12704 transitions. [2024-10-24 01:43:36,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:36,787 INFO L276 IsEmpty]: Start isEmpty. Operand 8354 states and 12704 transitions. [2024-10-24 01:43:36,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-24 01:43:36,789 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:36,789 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] [2024-10-24 01:43:36,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:43:36,790 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:36,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:36,790 INFO L85 PathProgramCache]: Analyzing trace with hash -838054242, now seen corresponding path program 1 times [2024-10-24 01:43:36,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:36,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308499545] [2024-10-24 01:43:36,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:36,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:37,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:37,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:37,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308499545] [2024-10-24 01:43:37,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308499545] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:37,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:37,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:43:37,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2596351] [2024-10-24 01:43:37,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:37,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:43:37,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:37,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:43:37,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:37,166 INFO L87 Difference]: Start difference. First operand 8354 states and 12704 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:37,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:37,898 INFO L93 Difference]: Finished difference Result 16402 states and 24762 transitions. [2024-10-24 01:43:37,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 01:43:37,898 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-10-24 01:43:37,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:37,928 INFO L225 Difference]: With dead ends: 16402 [2024-10-24 01:43:37,929 INFO L226 Difference]: Without dead ends: 12825 [2024-10-24 01:43:37,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:43:37,939 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 760 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:37,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 1001 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 01:43:37,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12825 states. [2024-10-24 01:43:38,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12825 to 8577. [2024-10-24 01:43:38,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8577 states, 8576 states have (on average 1.5162080223880596) internal successors, (13003), 8576 states have internal predecessors, (13003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:38,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8577 states to 8577 states and 13003 transitions. [2024-10-24 01:43:38,142 INFO L78 Accepts]: Start accepts. Automaton has 8577 states and 13003 transitions. Word has length 67 [2024-10-24 01:43:38,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:38,143 INFO L471 AbstractCegarLoop]: Abstraction has 8577 states and 13003 transitions. [2024-10-24 01:43:38,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:38,143 INFO L276 IsEmpty]: Start isEmpty. Operand 8577 states and 13003 transitions. [2024-10-24 01:43:38,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-24 01:43:38,146 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:38,146 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] [2024-10-24 01:43:38,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:43:38,147 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:38,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:38,147 INFO L85 PathProgramCache]: Analyzing trace with hash 296668894, now seen corresponding path program 1 times [2024-10-24 01:43:38,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:38,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303136169] [2024-10-24 01:43:38,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:38,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:38,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:38,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:38,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303136169] [2024-10-24 01:43:38,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303136169] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:38,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:38,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 01:43:38,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677778077] [2024-10-24 01:43:38,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:38,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 01:43:38,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:38,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 01:43:38,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:38,491 INFO L87 Difference]: Start difference. First operand 8577 states and 13003 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:39,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:39,238 INFO L93 Difference]: Finished difference Result 21669 states and 32662 transitions. [2024-10-24 01:43:39,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 01:43:39,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-10-24 01:43:39,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:39,261 INFO L225 Difference]: With dead ends: 21669 [2024-10-24 01:43:39,261 INFO L226 Difference]: Without dead ends: 13754 [2024-10-24 01:43:39,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 01:43:39,275 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 773 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:39,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1029 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 01:43:39,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13754 states. [2024-10-24 01:43:39,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13754 to 8727. [2024-10-24 01:43:39,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8727 states, 8726 states have (on average 1.5092826037130416) internal successors, (13170), 8726 states have internal predecessors, (13170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:39,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8727 states to 8727 states and 13170 transitions. [2024-10-24 01:43:39,448 INFO L78 Accepts]: Start accepts. Automaton has 8727 states and 13170 transitions. Word has length 67 [2024-10-24 01:43:39,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:39,449 INFO L471 AbstractCegarLoop]: Abstraction has 8727 states and 13170 transitions. [2024-10-24 01:43:39,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:39,449 INFO L276 IsEmpty]: Start isEmpty. Operand 8727 states and 13170 transitions. [2024-10-24 01:43:39,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-24 01:43:39,453 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:39,453 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] [2024-10-24 01:43:39,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:43:39,453 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:39,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:39,454 INFO L85 PathProgramCache]: Analyzing trace with hash 143038673, now seen corresponding path program 1 times [2024-10-24 01:43:39,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:39,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422456351] [2024-10-24 01:43:39,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:39,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:39,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:39,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:39,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422456351] [2024-10-24 01:43:39,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422456351] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:39,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:39,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:43:39,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555100194] [2024-10-24 01:43:39,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:39,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:43:39,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:39,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:43:39,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:43:39,638 INFO L87 Difference]: Start difference. First operand 8727 states and 13170 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:39,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:39,714 INFO L93 Difference]: Finished difference Result 22787 states and 34564 transitions. [2024-10-24 01:43:39,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:43:39,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-10-24 01:43:39,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:39,743 INFO L225 Difference]: With dead ends: 22787 [2024-10-24 01:43:39,743 INFO L226 Difference]: Without dead ends: 15137 [2024-10-24 01:43:39,757 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 [2024-10-24 01:43:39,758 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 170 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:39,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 603 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:39,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15137 states. [2024-10-24 01:43:39,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15137 to 15031. [2024-10-24 01:43:39,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15031 states, 15030 states have (on average 1.4990019960079841) internal successors, (22530), 15030 states have internal predecessors, (22530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:39,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15031 states to 15031 states and 22530 transitions. [2024-10-24 01:43:39,963 INFO L78 Accepts]: Start accepts. Automaton has 15031 states and 22530 transitions. Word has length 68 [2024-10-24 01:43:39,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:39,963 INFO L471 AbstractCegarLoop]: Abstraction has 15031 states and 22530 transitions. [2024-10-24 01:43:39,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:39,964 INFO L276 IsEmpty]: Start isEmpty. Operand 15031 states and 22530 transitions. [2024-10-24 01:43:39,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-24 01:43:39,966 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:39,967 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] [2024-10-24 01:43:39,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:43:39,967 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:39,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:39,968 INFO L85 PathProgramCache]: Analyzing trace with hash 897492929, now seen corresponding path program 1 times [2024-10-24 01:43:39,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:39,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885271604] [2024-10-24 01:43:39,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:39,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:40,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:40,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:40,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885271604] [2024-10-24 01:43:40,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885271604] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:40,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:40,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:43:40,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64515986] [2024-10-24 01:43:40,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:40,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:43:40,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:40,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:43:40,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:40,025 INFO L87 Difference]: Start difference. First operand 15031 states and 22530 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:40,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:40,111 INFO L93 Difference]: Finished difference Result 27395 states and 41147 transitions. [2024-10-24 01:43:40,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:43:40,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-10-24 01:43:40,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:40,142 INFO L225 Difference]: With dead ends: 27395 [2024-10-24 01:43:40,143 INFO L226 Difference]: Without dead ends: 18429 [2024-10-24 01:43:40,157 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 [2024-10-24 01:43:40,158 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 156 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:40,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 478 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:40,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18429 states. [2024-10-24 01:43:40,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18429 to 18211. [2024-10-24 01:43:40,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18211 states, 18210 states have (on average 1.4792421746293245) internal successors, (26937), 18210 states have internal predecessors, (26937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:40,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18211 states to 18211 states and 26937 transitions. [2024-10-24 01:43:40,443 INFO L78 Accepts]: Start accepts. Automaton has 18211 states and 26937 transitions. Word has length 68 [2024-10-24 01:43:40,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:40,444 INFO L471 AbstractCegarLoop]: Abstraction has 18211 states and 26937 transitions. [2024-10-24 01:43:40,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:40,444 INFO L276 IsEmpty]: Start isEmpty. Operand 18211 states and 26937 transitions. [2024-10-24 01:43:40,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-24 01:43:40,447 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:40,447 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:43:40,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:43:40,448 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:40,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:40,448 INFO L85 PathProgramCache]: Analyzing trace with hash 136395041, now seen corresponding path program 1 times [2024-10-24 01:43:40,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:40,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260057339] [2024-10-24 01:43:40,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:40,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:40,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:40,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:40,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260057339] [2024-10-24 01:43:40,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260057339] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:40,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:40,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:43:40,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000947410] [2024-10-24 01:43:40,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:40,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:43:40,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:40,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:43:40,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:40,507 INFO L87 Difference]: Start difference. First operand 18211 states and 26937 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:40,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:40,617 INFO L93 Difference]: Finished difference Result 40143 states and 59520 transitions. [2024-10-24 01:43:40,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:43:40,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-10-24 01:43:40,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:40,662 INFO L225 Difference]: With dead ends: 40143 [2024-10-24 01:43:40,662 INFO L226 Difference]: Without dead ends: 24347 [2024-10-24 01:43:40,686 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 [2024-10-24 01:43:40,686 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 175 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:40,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 462 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:40,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24347 states. [2024-10-24 01:43:41,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24347 to 24281. [2024-10-24 01:43:41,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24281 states, 24280 states have (on average 1.4637149917627676) internal successors, (35539), 24280 states have internal predecessors, (35539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:41,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24281 states to 24281 states and 35539 transitions. [2024-10-24 01:43:41,197 INFO L78 Accepts]: Start accepts. Automaton has 24281 states and 35539 transitions. Word has length 68 [2024-10-24 01:43:41,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:41,197 INFO L471 AbstractCegarLoop]: Abstraction has 24281 states and 35539 transitions. [2024-10-24 01:43:41,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:41,197 INFO L276 IsEmpty]: Start isEmpty. Operand 24281 states and 35539 transitions. [2024-10-24 01:43:41,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-24 01:43:41,200 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:41,201 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] [2024-10-24 01:43:41,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:43:41,201 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:41,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:41,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1838550528, now seen corresponding path program 1 times [2024-10-24 01:43:41,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:41,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306348921] [2024-10-24 01:43:41,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:41,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:41,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:41,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:41,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306348921] [2024-10-24 01:43:41,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306348921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:41,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:41,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:43:41,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769533310] [2024-10-24 01:43:41,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:41,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:43:41,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:41,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:43:41,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:41,254 INFO L87 Difference]: Start difference. First operand 24281 states and 35539 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:41,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:41,353 INFO L93 Difference]: Finished difference Result 33906 states and 49405 transitions. [2024-10-24 01:43:41,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:43:41,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-10-24 01:43:41,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:41,392 INFO L225 Difference]: With dead ends: 33906 [2024-10-24 01:43:41,393 INFO L226 Difference]: Without dead ends: 24822 [2024-10-24 01:43:41,412 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 [2024-10-24 01:43:41,413 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 143 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 462 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 [2024-10-24 01:43:41,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 462 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:41,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24822 states. [2024-10-24 01:43:41,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24822 to 22224. [2024-10-24 01:43:41,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22224 states, 22223 states have (on average 1.4353597624083156) internal successors, (31898), 22223 states have internal predecessors, (31898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:41,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22224 states to 22224 states and 31898 transitions. [2024-10-24 01:43:41,864 INFO L78 Accepts]: Start accepts. Automaton has 22224 states and 31898 transitions. Word has length 68 [2024-10-24 01:43:41,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:41,864 INFO L471 AbstractCegarLoop]: Abstraction has 22224 states and 31898 transitions. [2024-10-24 01:43:41,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:41,865 INFO L276 IsEmpty]: Start isEmpty. Operand 22224 states and 31898 transitions. [2024-10-24 01:43:41,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-24 01:43:41,869 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:41,869 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] [2024-10-24 01:43:41,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:43:41,870 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:41,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:41,870 INFO L85 PathProgramCache]: Analyzing trace with hash -100445024, now seen corresponding path program 1 times [2024-10-24 01:43:41,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:41,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142779199] [2024-10-24 01:43:41,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:41,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:41,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:41,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142779199] [2024-10-24 01:43:41,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142779199] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:41,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:41,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:43:41,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528184890] [2024-10-24 01:43:41,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:41,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:43:41,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:41,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:43:41,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:43:41,932 INFO L87 Difference]: Start difference. First operand 22224 states and 31898 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:42,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:42,201 INFO L93 Difference]: Finished difference Result 44869 states and 64240 transitions. [2024-10-24 01:43:42,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:43:42,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-10-24 01:43:42,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:42,229 INFO L225 Difference]: With dead ends: 44869 [2024-10-24 01:43:42,229 INFO L226 Difference]: Without dead ends: 25147 [2024-10-24 01:43:42,243 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 [2024-10-24 01:43:42,243 INFO L432 NwaCegarLoop]: 333 mSDtfsCounter, 161 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:42,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 552 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:43:42,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25147 states. [2024-10-24 01:43:42,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25147 to 24901. [2024-10-24 01:43:42,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24901 states, 24900 states have (on average 1.398433734939759) internal successors, (34821), 24900 states have internal predecessors, (34821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:42,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24901 states to 24901 states and 34821 transitions. [2024-10-24 01:43:42,626 INFO L78 Accepts]: Start accepts. Automaton has 24901 states and 34821 transitions. Word has length 68 [2024-10-24 01:43:42,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:42,626 INFO L471 AbstractCegarLoop]: Abstraction has 24901 states and 34821 transitions. [2024-10-24 01:43:42,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:42,627 INFO L276 IsEmpty]: Start isEmpty. Operand 24901 states and 34821 transitions. [2024-10-24 01:43:42,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 01:43:42,630 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:42,630 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] [2024-10-24 01:43:42,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:43:42,630 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:42,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:42,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1940195899, now seen corresponding path program 1 times [2024-10-24 01:43:42,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:42,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328183888] [2024-10-24 01:43:42,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:42,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:42,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:42,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:42,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328183888] [2024-10-24 01:43:42,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328183888] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:42,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:42,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:42,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010495294] [2024-10-24 01:43:42,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:42,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:43:42,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:42,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:43:42,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:43:42,774 INFO L87 Difference]: Start difference. First operand 24901 states and 34821 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:43,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:43,140 INFO L93 Difference]: Finished difference Result 52990 states and 74772 transitions. [2024-10-24 01:43:43,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:43:43,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-24 01:43:43,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:43,200 INFO L225 Difference]: With dead ends: 52990 [2024-10-24 01:43:43,200 INFO L226 Difference]: Without dead ends: 42896 [2024-10-24 01:43:43,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:43,221 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 1081 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:43,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 1145 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:43:43,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42896 states. [2024-10-24 01:43:43,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42896 to 34309. [2024-10-24 01:43:43,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34309 states, 34308 states have (on average 1.3987991139092923) internal successors, (47990), 34308 states have internal predecessors, (47990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:43,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34309 states to 34309 states and 47990 transitions. [2024-10-24 01:43:43,715 INFO L78 Accepts]: Start accepts. Automaton has 34309 states and 47990 transitions. Word has length 69 [2024-10-24 01:43:43,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:43,715 INFO L471 AbstractCegarLoop]: Abstraction has 34309 states and 47990 transitions. [2024-10-24 01:43:43,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:43,715 INFO L276 IsEmpty]: Start isEmpty. Operand 34309 states and 47990 transitions. [2024-10-24 01:43:43,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 01:43:43,718 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:43,718 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] [2024-10-24 01:43:43,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 01:43:43,719 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:43,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:43,719 INFO L85 PathProgramCache]: Analyzing trace with hash 520253443, now seen corresponding path program 1 times [2024-10-24 01:43:43,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:43,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869055932] [2024-10-24 01:43:43,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:43,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:43,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:43,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:43,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869055932] [2024-10-24 01:43:43,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869055932] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:43,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:43,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:43,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213040189] [2024-10-24 01:43:43,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:43,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:43:43,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:43,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:43:43,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:43:43,826 INFO L87 Difference]: Start difference. First operand 34309 states and 47990 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:44,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:44,205 INFO L93 Difference]: Finished difference Result 52475 states and 73829 transitions. [2024-10-24 01:43:44,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:43:44,206 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-24 01:43:44,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:44,266 INFO L225 Difference]: With dead ends: 52475 [2024-10-24 01:43:44,267 INFO L226 Difference]: Without dead ends: 49485 [2024-10-24 01:43:44,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:44,285 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 1107 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:44,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 1197 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:43:44,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49485 states. [2024-10-24 01:43:44,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49485 to 37252. [2024-10-24 01:43:44,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37252 states, 37251 states have (on average 1.3991839145257845) internal successors, (52121), 37251 states have internal predecessors, (52121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:44,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37252 states to 37252 states and 52121 transitions. [2024-10-24 01:43:44,933 INFO L78 Accepts]: Start accepts. Automaton has 37252 states and 52121 transitions. Word has length 69 [2024-10-24 01:43:44,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:44,934 INFO L471 AbstractCegarLoop]: Abstraction has 37252 states and 52121 transitions. [2024-10-24 01:43:44,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:44,934 INFO L276 IsEmpty]: Start isEmpty. Operand 37252 states and 52121 transitions. [2024-10-24 01:43:44,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 01:43:44,937 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:44,937 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] [2024-10-24 01:43:44,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 01:43:44,937 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:44,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:44,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1252332142, now seen corresponding path program 1 times [2024-10-24 01:43:44,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:44,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316922772] [2024-10-24 01:43:44,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:44,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:45,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:45,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:45,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316922772] [2024-10-24 01:43:45,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316922772] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:45,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:45,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:45,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537036201] [2024-10-24 01:43:45,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:45,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:43:45,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:45,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:43:45,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:43:45,045 INFO L87 Difference]: Start difference. First operand 37252 states and 52121 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:45,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:45,264 INFO L93 Difference]: Finished difference Result 58966 states and 82996 transitions. [2024-10-24 01:43:45,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:43:45,265 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-24 01:43:45,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:45,488 INFO L225 Difference]: With dead ends: 58966 [2024-10-24 01:43:45,492 INFO L226 Difference]: Without dead ends: 52352 [2024-10-24 01:43:45,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:45,515 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 1029 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:45,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 1352 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:43:45,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52352 states. [2024-10-24 01:43:46,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52352 to 41437. [2024-10-24 01:43:46,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41437 states, 41436 states have (on average 1.4011970267400329) internal successors, (58060), 41436 states have internal predecessors, (58060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:46,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41437 states to 41437 states and 58060 transitions. [2024-10-24 01:43:46,156 INFO L78 Accepts]: Start accepts. Automaton has 41437 states and 58060 transitions. Word has length 69 [2024-10-24 01:43:46,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:46,156 INFO L471 AbstractCegarLoop]: Abstraction has 41437 states and 58060 transitions. [2024-10-24 01:43:46,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:46,156 INFO L276 IsEmpty]: Start isEmpty. Operand 41437 states and 58060 transitions. [2024-10-24 01:43:46,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 01:43:46,159 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:46,159 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:43:46,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 01:43:46,160 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:46,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:46,160 INFO L85 PathProgramCache]: Analyzing trace with hash 662995848, now seen corresponding path program 1 times [2024-10-24 01:43:46,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:46,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951829445] [2024-10-24 01:43:46,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:46,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:46,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:46,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:46,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951829445] [2024-10-24 01:43:46,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951829445] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:46,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:46,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:46,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704114215] [2024-10-24 01:43:46,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:46,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 01:43:46,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:46,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 01:43:46,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 01:43:46,312 INFO L87 Difference]: Start difference. First operand 41437 states and 58060 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:46,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:46,628 INFO L93 Difference]: Finished difference Result 71178 states and 100264 transitions. [2024-10-24 01:43:46,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 01:43:46,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-10-24 01:43:46,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:46,725 INFO L225 Difference]: With dead ends: 71178 [2024-10-24 01:43:46,726 INFO L226 Difference]: Without dead ends: 60737 [2024-10-24 01:43:46,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-24 01:43:46,759 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 1089 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:46,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 1288 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:43:46,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60737 states. [2024-10-24 01:43:47,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60737 to 45935. [2024-10-24 01:43:47,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45935 states, 45934 states have (on average 1.4016414856097879) internal successors, (64383), 45934 states have internal predecessors, (64383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:47,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45935 states to 45935 states and 64383 transitions. [2024-10-24 01:43:47,867 INFO L78 Accepts]: Start accepts. Automaton has 45935 states and 64383 transitions. Word has length 69 [2024-10-24 01:43:47,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:47,868 INFO L471 AbstractCegarLoop]: Abstraction has 45935 states and 64383 transitions. [2024-10-24 01:43:47,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:47,868 INFO L276 IsEmpty]: Start isEmpty. Operand 45935 states and 64383 transitions. [2024-10-24 01:43:47,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 01:43:47,871 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:47,871 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] [2024-10-24 01:43:47,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 01:43:47,871 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:47,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:47,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1615492394, now seen corresponding path program 1 times [2024-10-24 01:43:47,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:47,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128090138] [2024-10-24 01:43:47,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:47,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:47,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:47,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:47,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128090138] [2024-10-24 01:43:47,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128090138] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:47,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:47,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:47,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116039043] [2024-10-24 01:43:47,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:47,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:43:47,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:47,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:43:47,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:43:47,999 INFO L87 Difference]: Start difference. First operand 45935 states and 64383 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:48,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:48,678 INFO L93 Difference]: Finished difference Result 143736 states and 201007 transitions. [2024-10-24 01:43:48,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:43:48,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-24 01:43:48,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:48,832 INFO L225 Difference]: With dead ends: 143736 [2024-10-24 01:43:48,832 INFO L226 Difference]: Without dead ends: 121278 [2024-10-24 01:43:48,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:43:48,882 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 1766 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:48,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 468 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:43:48,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121278 states. [2024-10-24 01:43:50,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121278 to 46039. [2024-10-24 01:43:50,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46039 states, 46038 states have (on average 1.4011903210391417) internal successors, (64508), 46038 states have internal predecessors, (64508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:50,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46039 states to 46039 states and 64508 transitions. [2024-10-24 01:43:50,320 INFO L78 Accepts]: Start accepts. Automaton has 46039 states and 64508 transitions. Word has length 74 [2024-10-24 01:43:50,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:50,320 INFO L471 AbstractCegarLoop]: Abstraction has 46039 states and 64508 transitions. [2024-10-24 01:43:50,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:50,320 INFO L276 IsEmpty]: Start isEmpty. Operand 46039 states and 64508 transitions. [2024-10-24 01:43:50,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 01:43:50,324 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:50,324 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] [2024-10-24 01:43:50,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 01:43:50,325 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:50,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:50,325 INFO L85 PathProgramCache]: Analyzing trace with hash 282958172, now seen corresponding path program 1 times [2024-10-24 01:43:50,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:50,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815105195] [2024-10-24 01:43:50,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:50,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:50,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:50,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:50,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815105195] [2024-10-24 01:43:50,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815105195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:50,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:50,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:50,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961582582] [2024-10-24 01:43:50,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:50,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:43:50,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:50,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:43:50,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:43:50,496 INFO L87 Difference]: Start difference. First operand 46039 states and 64508 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:51,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:51,254 INFO L93 Difference]: Finished difference Result 136034 states and 189172 transitions. [2024-10-24 01:43:51,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:43:51,255 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-24 01:43:51,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:51,429 INFO L225 Difference]: With dead ends: 136034 [2024-10-24 01:43:51,429 INFO L226 Difference]: Without dead ends: 119004 [2024-10-24 01:43:51,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:43:51,477 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 1539 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:51,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 473 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:43:51,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119004 states. [2024-10-24 01:43:52,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119004 to 46201. [2024-10-24 01:43:52,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46201 states, 46200 states have (on average 1.4004545454545454) internal successors, (64701), 46200 states have internal predecessors, (64701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:52,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46201 states to 46201 states and 64701 transitions. [2024-10-24 01:43:52,916 INFO L78 Accepts]: Start accepts. Automaton has 46201 states and 64701 transitions. Word has length 74 [2024-10-24 01:43:52,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:52,917 INFO L471 AbstractCegarLoop]: Abstraction has 46201 states and 64701 transitions. [2024-10-24 01:43:52,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:52,917 INFO L276 IsEmpty]: Start isEmpty. Operand 46201 states and 64701 transitions. [2024-10-24 01:43:52,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 01:43:52,921 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:52,922 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] [2024-10-24 01:43:52,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 01:43:52,922 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:52,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:52,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1376997652, now seen corresponding path program 1 times [2024-10-24 01:43:52,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:52,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209329683] [2024-10-24 01:43:52,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:52,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:53,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:53,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:53,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209329683] [2024-10-24 01:43:53,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209329683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:53,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:53,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:53,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111781236] [2024-10-24 01:43:53,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:53,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:43:53,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:53,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:43:53,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:43:53,072 INFO L87 Difference]: Start difference. First operand 46201 states and 64701 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:53,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:53,613 INFO L93 Difference]: Finished difference Result 114377 states and 159316 transitions. [2024-10-24 01:43:53,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:43:53,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-24 01:43:53,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:53,714 INFO L225 Difference]: With dead ends: 114377 [2024-10-24 01:43:53,714 INFO L226 Difference]: Without dead ends: 87149 [2024-10-24 01:43:53,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:43:53,763 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 1254 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:53,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 394 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:43:53,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87149 states. [2024-10-24 01:43:54,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87149 to 46251. [2024-10-24 01:43:54,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46251 states, 46250 states have (on average 1.4002378378378377) internal successors, (64761), 46250 states have internal predecessors, (64761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:54,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46251 states to 46251 states and 64761 transitions. [2024-10-24 01:43:54,815 INFO L78 Accepts]: Start accepts. Automaton has 46251 states and 64761 transitions. Word has length 74 [2024-10-24 01:43:54,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:54,815 INFO L471 AbstractCegarLoop]: Abstraction has 46251 states and 64761 transitions. [2024-10-24 01:43:54,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:54,815 INFO L276 IsEmpty]: Start isEmpty. Operand 46251 states and 64761 transitions. [2024-10-24 01:43:54,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-24 01:43:54,818 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:54,818 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] [2024-10-24 01:43:54,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 01:43:54,819 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:54,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:54,819 INFO L85 PathProgramCache]: Analyzing trace with hash -760049320, now seen corresponding path program 1 times [2024-10-24 01:43:54,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:54,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009134386] [2024-10-24 01:43:54,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:54,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:54,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:54,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:54,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009134386] [2024-10-24 01:43:54,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009134386] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:54,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:54,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:43:54,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632944508] [2024-10-24 01:43:54,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:54,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:43:54,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:54,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:43:54,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:43:54,929 INFO L87 Difference]: Start difference. First operand 46251 states and 64761 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:55,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:55,919 INFO L93 Difference]: Finished difference Result 108736 states and 150766 transitions. [2024-10-24 01:43:55,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:43:55,919 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-10-24 01:43:55,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:56,061 INFO L225 Difference]: With dead ends: 108736 [2024-10-24 01:43:56,061 INFO L226 Difference]: Without dead ends: 99938 [2024-10-24 01:43:56,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-10-24 01:43:56,086 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 1439 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1439 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:56,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1439 Valid, 441 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:43:56,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99938 states. [2024-10-24 01:43:57,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99938 to 46500. [2024-10-24 01:43:57,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46500 states, 46499 states have (on average 1.3989763220714424) internal successors, (65051), 46499 states have internal predecessors, (65051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:57,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46500 states to 46500 states and 65051 transitions. [2024-10-24 01:43:57,390 INFO L78 Accepts]: Start accepts. Automaton has 46500 states and 65051 transitions. Word has length 74 [2024-10-24 01:43:57,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:43:57,390 INFO L471 AbstractCegarLoop]: Abstraction has 46500 states and 65051 transitions. [2024-10-24 01:43:57,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:57,390 INFO L276 IsEmpty]: Start isEmpty. Operand 46500 states and 65051 transitions. [2024-10-24 01:43:57,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 01:43:57,395 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:43:57,395 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] [2024-10-24 01:43:57,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 01:43:57,395 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:43:57,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:43:57,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1870035016, now seen corresponding path program 1 times [2024-10-24 01:43:57,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:43:57,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554816020] [2024-10-24 01:43:57,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:43:57,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:43:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:43:58,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:43:58,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:43:58,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554816020] [2024-10-24 01:43:58,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554816020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:43:58,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:43:58,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:43:58,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016844123] [2024-10-24 01:43:58,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:43:58,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:43:58,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:43:58,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:43:58,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:43:58,061 INFO L87 Difference]: Start difference. First operand 46500 states and 65051 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:43:59,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:43:59,025 INFO L93 Difference]: Finished difference Result 85371 states and 119460 transitions. [2024-10-24 01:43:59,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:43:59,026 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 01:43:59,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:43:59,125 INFO L225 Difference]: With dead ends: 85371 [2024-10-24 01:43:59,126 INFO L226 Difference]: Without dead ends: 79429 [2024-10-24 01:43:59,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-24 01:43:59,153 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 1135 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:43:59,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 2412 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:43:59,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79429 states. [2024-10-24 01:43:59,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79429 to 46513. [2024-10-24 01:43:59,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46513 states, 46512 states have (on average 1.3987143102855177) internal successors, (65057), 46512 states have internal predecessors, (65057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:00,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46513 states to 46513 states and 65057 transitions. [2024-10-24 01:44:00,024 INFO L78 Accepts]: Start accepts. Automaton has 46513 states and 65057 transitions. Word has length 76 [2024-10-24 01:44:00,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:00,024 INFO L471 AbstractCegarLoop]: Abstraction has 46513 states and 65057 transitions. [2024-10-24 01:44:00,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:00,025 INFO L276 IsEmpty]: Start isEmpty. Operand 46513 states and 65057 transitions. [2024-10-24 01:44:00,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 01:44:00,029 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:00,029 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] [2024-10-24 01:44:00,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 01:44:00,030 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:00,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:00,030 INFO L85 PathProgramCache]: Analyzing trace with hash 484016192, now seen corresponding path program 1 times [2024-10-24 01:44:00,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:00,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986820755] [2024-10-24 01:44:00,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:00,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:00,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:00,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:00,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986820755] [2024-10-24 01:44:00,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986820755] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:00,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:00,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:44:00,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267552722] [2024-10-24 01:44:00,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:00,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:44:00,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:00,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:44:00,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:44:00,530 INFO L87 Difference]: Start difference. First operand 46513 states and 65057 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:01,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:01,517 INFO L93 Difference]: Finished difference Result 106699 states and 149033 transitions. [2024-10-24 01:44:01,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 01:44:01,518 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 01:44:01,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:01,682 INFO L225 Difference]: With dead ends: 106699 [2024-10-24 01:44:01,682 INFO L226 Difference]: Without dead ends: 101523 [2024-10-24 01:44:01,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2024-10-24 01:44:01,715 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 1459 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:01,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 1943 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:44:01,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101523 states. [2024-10-24 01:44:02,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101523 to 45830. [2024-10-24 01:44:02,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45830 states, 45829 states have (on average 1.399375940998058) internal successors, (64132), 45829 states have internal predecessors, (64132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:02,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45830 states to 45830 states and 64132 transitions. [2024-10-24 01:44:02,747 INFO L78 Accepts]: Start accepts. Automaton has 45830 states and 64132 transitions. Word has length 76 [2024-10-24 01:44:02,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:02,747 INFO L471 AbstractCegarLoop]: Abstraction has 45830 states and 64132 transitions. [2024-10-24 01:44:02,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:02,747 INFO L276 IsEmpty]: Start isEmpty. Operand 45830 states and 64132 transitions. [2024-10-24 01:44:02,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 01:44:02,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:02,752 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] [2024-10-24 01:44:02,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 01:44:02,753 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:02,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:02,753 INFO L85 PathProgramCache]: Analyzing trace with hash 159257590, now seen corresponding path program 1 times [2024-10-24 01:44:02,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:02,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198541682] [2024-10-24 01:44:02,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:02,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:03,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:03,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:03,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198541682] [2024-10-24 01:44:03,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198541682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:03,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:03,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 01:44:03,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212893740] [2024-10-24 01:44:03,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:03,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 01:44:03,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:03,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 01:44:03,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:44:03,461 INFO L87 Difference]: Start difference. First operand 45830 states and 64132 transitions. Second operand has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:04,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:04,502 INFO L93 Difference]: Finished difference Result 99794 states and 139791 transitions. [2024-10-24 01:44:04,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 01:44:04,503 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-24 01:44:04,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:04,624 INFO L225 Difference]: With dead ends: 99794 [2024-10-24 01:44:04,624 INFO L226 Difference]: Without dead ends: 86602 [2024-10-24 01:44:04,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-10-24 01:44:04,663 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 1415 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1415 SdHoareTripleChecker+Valid, 1938 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:04,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1415 Valid, 1938 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:44:04,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86602 states. [2024-10-24 01:44:05,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86602 to 45789. [2024-10-24 01:44:05,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45789 states, 45788 states have (on average 1.3995588363763432) internal successors, (64083), 45788 states have internal predecessors, (64083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:05,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45789 states to 45789 states and 64083 transitions. [2024-10-24 01:44:05,764 INFO L78 Accepts]: Start accepts. Automaton has 45789 states and 64083 transitions. Word has length 76 [2024-10-24 01:44:05,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:05,764 INFO L471 AbstractCegarLoop]: Abstraction has 45789 states and 64083 transitions. [2024-10-24 01:44:05,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:05,764 INFO L276 IsEmpty]: Start isEmpty. Operand 45789 states and 64083 transitions. [2024-10-24 01:44:05,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 01:44:05,768 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:05,769 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] [2024-10-24 01:44:05,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 01:44:05,769 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:05,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:05,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1971062765, now seen corresponding path program 1 times [2024-10-24 01:44:05,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:05,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116632164] [2024-10-24 01:44:05,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:05,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:05,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:05,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:05,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116632164] [2024-10-24 01:44:05,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116632164] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:05,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:05,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:44:05,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963435505] [2024-10-24 01:44:05,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:05,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:44:05,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:05,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:44:05,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:44:05,818 INFO L87 Difference]: Start difference. First operand 45789 states and 64083 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:06,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:06,079 INFO L93 Difference]: Finished difference Result 92413 states and 129510 transitions. [2024-10-24 01:44:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:44:06,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-10-24 01:44:06,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:06,177 INFO L225 Difference]: With dead ends: 92413 [2024-10-24 01:44:06,631 INFO L226 Difference]: Without dead ends: 61644 [2024-10-24 01:44:06,667 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 [2024-10-24 01:44:06,675 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 183 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:06,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 360 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:44:06,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61644 states. [2024-10-24 01:44:07,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61644 to 41594. [2024-10-24 01:44:07,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41594 states, 41593 states have (on average 1.4004760416416224) internal successors, (58250), 41593 states have internal predecessors, (58250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:07,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41594 states to 41594 states and 58250 transitions. [2024-10-24 01:44:07,143 INFO L78 Accepts]: Start accepts. Automaton has 41594 states and 58250 transitions. Word has length 77 [2024-10-24 01:44:07,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:07,143 INFO L471 AbstractCegarLoop]: Abstraction has 41594 states and 58250 transitions. [2024-10-24 01:44:07,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:07,143 INFO L276 IsEmpty]: Start isEmpty. Operand 41594 states and 58250 transitions. [2024-10-24 01:44:07,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-24 01:44:07,148 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:07,148 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] [2024-10-24 01:44:07,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 01:44:07,149 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:07,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:07,149 INFO L85 PathProgramCache]: Analyzing trace with hash 745005614, now seen corresponding path program 1 times [2024-10-24 01:44:07,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:07,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967405154] [2024-10-24 01:44:07,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:07,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:07,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:07,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:07,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967405154] [2024-10-24 01:44:07,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967405154] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:07,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:07,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:44:07,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386759980] [2024-10-24 01:44:07,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:07,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:44:07,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:07,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:44:07,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:44:07,203 INFO L87 Difference]: Start difference. First operand 41594 states and 58250 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:07,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:07,384 INFO L93 Difference]: Finished difference Result 88669 states and 124290 transitions. [2024-10-24 01:44:07,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:44:07,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-10-24 01:44:07,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:07,457 INFO L225 Difference]: With dead ends: 88669 [2024-10-24 01:44:07,457 INFO L226 Difference]: Without dead ends: 61388 [2024-10-24 01:44:07,488 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 [2024-10-24 01:44:07,489 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 181 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:07,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 424 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:44:07,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61388 states. [2024-10-24 01:44:08,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61388 to 61174. [2024-10-24 01:44:08,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61174 states, 61173 states have (on average 1.403936377159858) internal successors, (85883), 61173 states have internal predecessors, (85883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:08,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61174 states to 61174 states and 85883 transitions. [2024-10-24 01:44:08,467 INFO L78 Accepts]: Start accepts. Automaton has 61174 states and 85883 transitions. Word has length 80 [2024-10-24 01:44:08,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:08,467 INFO L471 AbstractCegarLoop]: Abstraction has 61174 states and 85883 transitions. [2024-10-24 01:44:08,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:08,467 INFO L276 IsEmpty]: Start isEmpty. Operand 61174 states and 85883 transitions. [2024-10-24 01:44:08,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-24 01:44:08,484 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:08,484 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:08,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 01:44:08,484 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:08,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:08,485 INFO L85 PathProgramCache]: Analyzing trace with hash -639780682, now seen corresponding path program 1 times [2024-10-24 01:44:08,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:08,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311993010] [2024-10-24 01:44:08,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:08,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:08,582 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:08,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:08,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311993010] [2024-10-24 01:44:08,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311993010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:08,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:08,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:44:08,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033060279] [2024-10-24 01:44:08,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:08,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:44:08,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:08,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:44:08,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:44:08,584 INFO L87 Difference]: Start difference. First operand 61174 states and 85883 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:09,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:09,222 INFO L93 Difference]: Finished difference Result 129158 states and 182532 transitions. [2024-10-24 01:44:09,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:44:09,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-10-24 01:44:09,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:09,345 INFO L225 Difference]: With dead ends: 129158 [2024-10-24 01:44:09,345 INFO L226 Difference]: Without dead ends: 93846 [2024-10-24 01:44:09,376 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 [2024-10-24 01:44:09,376 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 125 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:09,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 512 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:44:09,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93846 states. [2024-10-24 01:44:10,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93846 to 88841. [2024-10-24 01:44:10,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88841 states, 88840 states have (on average 1.4013957676722197) internal successors, (124500), 88840 states have internal predecessors, (124500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:10,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88841 states to 88841 states and 124500 transitions. [2024-10-24 01:44:10,820 INFO L78 Accepts]: Start accepts. Automaton has 88841 states and 124500 transitions. Word has length 90 [2024-10-24 01:44:10,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:10,820 INFO L471 AbstractCegarLoop]: Abstraction has 88841 states and 124500 transitions. [2024-10-24 01:44:10,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand 88841 states and 124500 transitions. [2024-10-24 01:44:10,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-24 01:44:10,832 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:10,832 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:10,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-24 01:44:10,832 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:10,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:10,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1425466717, now seen corresponding path program 1 times [2024-10-24 01:44:10,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:10,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182266689] [2024-10-24 01:44:10,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:10,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:10,956 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:10,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:10,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182266689] [2024-10-24 01:44:10,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182266689] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:10,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:10,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:44:10,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518461301] [2024-10-24 01:44:10,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:10,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:44:10,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:10,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:44:10,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:44:10,957 INFO L87 Difference]: Start difference. First operand 88841 states and 124500 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:11,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:11,781 INFO L93 Difference]: Finished difference Result 259731 states and 365017 transitions. [2024-10-24 01:44:11,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 01:44:11,782 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2024-10-24 01:44:11,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:12,023 INFO L225 Difference]: With dead ends: 259731 [2024-10-24 01:44:12,024 INFO L226 Difference]: Without dead ends: 177129 [2024-10-24 01:44:12,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:44:12,733 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 1653 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:12,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1653 Valid, 450 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:44:12,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177129 states. [2024-10-24 01:44:14,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177129 to 101102. [2024-10-24 01:44:14,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101102 states, 101101 states have (on average 1.4040711763484042) internal successors, (141953), 101101 states have internal predecessors, (141953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:14,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101102 states to 101102 states and 141953 transitions. [2024-10-24 01:44:14,582 INFO L78 Accepts]: Start accepts. Automaton has 101102 states and 141953 transitions. Word has length 96 [2024-10-24 01:44:14,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:14,582 INFO L471 AbstractCegarLoop]: Abstraction has 101102 states and 141953 transitions. [2024-10-24 01:44:14,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:14,583 INFO L276 IsEmpty]: Start isEmpty. Operand 101102 states and 141953 transitions. [2024-10-24 01:44:14,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-24 01:44:14,596 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:14,597 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:14,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-24 01:44:14,597 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:14,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:14,597 INFO L85 PathProgramCache]: Analyzing trace with hash 2035860627, now seen corresponding path program 1 times [2024-10-24 01:44:14,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:14,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465237724] [2024-10-24 01:44:14,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:14,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:14,725 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:14,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:14,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465237724] [2024-10-24 01:44:14,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465237724] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:14,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:14,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:44:14,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169172870] [2024-10-24 01:44:14,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:14,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:44:14,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:14,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:44:14,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:44:14,727 INFO L87 Difference]: Start difference. First operand 101102 states and 141953 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:16,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:16,414 INFO L93 Difference]: Finished difference Result 339977 states and 478344 transitions. [2024-10-24 01:44:16,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 01:44:16,415 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-10-24 01:44:16,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:16,880 INFO L225 Difference]: With dead ends: 339977 [2024-10-24 01:44:16,881 INFO L226 Difference]: Without dead ends: 274143 [2024-10-24 01:44:16,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-10-24 01:44:16,962 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 1475 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:16,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1475 Valid, 453 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:44:17,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274143 states. [2024-10-24 01:44:19,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274143 to 155212. [2024-10-24 01:44:19,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155212 states, 155211 states have (on average 1.4172513546075987) internal successors, (219973), 155211 states have internal predecessors, (219973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:20,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155212 states to 155212 states and 219973 transitions. [2024-10-24 01:44:20,128 INFO L78 Accepts]: Start accepts. Automaton has 155212 states and 219973 transitions. Word has length 97 [2024-10-24 01:44:20,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:20,128 INFO L471 AbstractCegarLoop]: Abstraction has 155212 states and 219973 transitions. [2024-10-24 01:44:20,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:20,129 INFO L276 IsEmpty]: Start isEmpty. Operand 155212 states and 219973 transitions. [2024-10-24 01:44:20,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-24 01:44:20,146 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:20,146 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:20,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-24 01:44:20,146 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:20,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:20,147 INFO L85 PathProgramCache]: Analyzing trace with hash -442541654, now seen corresponding path program 1 times [2024-10-24 01:44:20,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:20,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926554946] [2024-10-24 01:44:20,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:20,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:20,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 01:44:20,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:20,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926554946] [2024-10-24 01:44:20,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926554946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:20,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:20,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:44:20,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518833464] [2024-10-24 01:44:20,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:20,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:44:20,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:20,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:44:20,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:44:20,205 INFO L87 Difference]: Start difference. First operand 155212 states and 219973 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:21,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:21,623 INFO L93 Difference]: Finished difference Result 248457 states and 351961 transitions. [2024-10-24 01:44:21,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:44:21,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-10-24 01:44:21,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:21,854 INFO L225 Difference]: With dead ends: 248457 [2024-10-24 01:44:21,855 INFO L226 Difference]: Without dead ends: 144938 [2024-10-24 01:44:21,923 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 [2024-10-24 01:44:21,923 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 161 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 604 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 [2024-10-24 01:44:21,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 604 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:44:22,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144938 states. [2024-10-24 01:44:23,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144938 to 144936. [2024-10-24 01:44:23,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144936 states, 144935 states have (on average 1.409259323144858) internal successors, (204251), 144935 states have internal predecessors, (204251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:24,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144936 states to 144936 states and 204251 transitions. [2024-10-24 01:44:24,109 INFO L78 Accepts]: Start accepts. Automaton has 144936 states and 204251 transitions. Word has length 98 [2024-10-24 01:44:24,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:24,109 INFO L471 AbstractCegarLoop]: Abstraction has 144936 states and 204251 transitions. [2024-10-24 01:44:24,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:24,109 INFO L276 IsEmpty]: Start isEmpty. Operand 144936 states and 204251 transitions. [2024-10-24 01:44:24,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-24 01:44:24,130 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:24,130 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:24,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-24 01:44:24,130 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:24,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:24,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1283133538, now seen corresponding path program 1 times [2024-10-24 01:44:24,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:24,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442598215] [2024-10-24 01:44:24,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:24,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:24,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 01:44:24,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:24,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442598215] [2024-10-24 01:44:24,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442598215] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:24,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:24,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:44:24,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190770702] [2024-10-24 01:44:24,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:24,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:44:24,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:24,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:44:24,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:44:24,191 INFO L87 Difference]: Start difference. First operand 144936 states and 204251 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:25,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:25,555 INFO L93 Difference]: Finished difference Result 267932 states and 377974 transitions. [2024-10-24 01:44:25,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:44:25,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-10-24 01:44:25,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:25,822 INFO L225 Difference]: With dead ends: 267932 [2024-10-24 01:44:25,822 INFO L226 Difference]: Without dead ends: 174163 [2024-10-24 01:44:25,916 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 [2024-10-24 01:44:25,916 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 190 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:25,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 362 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:44:26,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174163 states.