./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.5.2.ufo.BOUNDED-10.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.5.2.ufo.BOUNDED-10.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 6a475a1757f9d6a7e4fb14b3de484172261c724bb5d3b2a10ee5c8f5de9de51b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 01:44:12,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 01:44:12,305 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 01:44:12,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 01:44:12,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 01:44:12,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 01:44:12,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 01:44:12,342 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 01:44:12,343 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 01:44:12,344 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 01:44:12,344 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 01:44:12,345 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 01:44:12,345 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 01:44:12,345 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 01:44:12,346 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 01:44:12,348 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 01:44:12,349 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 01:44:12,351 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 01:44:12,351 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 01:44:12,351 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 01:44:12,351 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 01:44:12,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 01:44:12,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 01:44:12,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 01:44:12,353 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 01:44:12,353 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 01:44:12,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 01:44:12,353 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 01:44:12,354 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 01:44:12,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 01:44:12,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 01:44:12,355 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 01:44:12,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:44:12,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 01:44:12,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 01:44:12,356 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 01:44:12,356 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 01:44:12,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 01:44:12,357 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 01:44:12,357 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 01:44:12,357 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 01:44:12,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 01:44:12,358 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a475a1757f9d6a7e4fb14b3de484172261c724bb5d3b2a10ee5c8f5de9de51b [2024-10-24 01:44:12,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 01:44:12,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 01:44:12,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 01:44:12,654 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 01:44:12,654 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 01:44:12,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-24 01:44:14,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 01:44:14,326 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 01:44:14,326 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-24 01:44:14,351 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce09730b5/120ad75c903d414fba9f12b79e4c29b7/FLAG3d3aac256 [2024-10-24 01:44:14,365 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce09730b5/120ad75c903d414fba9f12b79e4c29b7 [2024-10-24 01:44:14,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 01:44:14,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 01:44:14,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 01:44:14,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 01:44:14,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 01:44:14,379 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:44:14" (1/1) ... [2024-10-24 01:44:14,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50fff4af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:14, skipping insertion in model container [2024-10-24 01:44:14,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:44:14" (1/1) ... [2024-10-24 01:44:14,435 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 01:44:14,674 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.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2024-10-24 01:44:14,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:44:14,750 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 01:44:14,819 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.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2024-10-24 01:44:14,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 01:44:14,878 INFO L204 MainTranslator]: Completed translation [2024-10-24 01:44:14,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:14 WrapperNode [2024-10-24 01:44:14,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 01:44:14,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 01:44:14,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 01:44:14,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 01:44:14,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:14" (1/1) ... [2024-10-24 01:44:14,919 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:14" (1/1) ... [2024-10-24 01:44:14,987 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 853 [2024-10-24 01:44:14,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 01:44:14,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 01:44:14,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 01:44:14,989 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 01:44:15,000 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:14" (1/1) ... [2024-10-24 01:44:15,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:14" (1/1) ... [2024-10-24 01:44:15,007 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:14" (1/1) ... [2024-10-24 01:44:15,030 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 01:44:15,031 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:14" (1/1) ... [2024-10-24 01:44:15,032 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:14" (1/1) ... [2024-10-24 01:44:15,046 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:14" (1/1) ... [2024-10-24 01:44:15,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:14" (1/1) ... [2024-10-24 01:44:15,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:14" (1/1) ... [2024-10-24 01:44:15,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:14" (1/1) ... [2024-10-24 01:44:15,073 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 01:44:15,074 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 01:44:15,074 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 01:44:15,074 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 01:44:15,075 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:14" (1/1) ... [2024-10-24 01:44:15,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 01:44:15,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 01:44:15,123 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 01:44:15,129 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 01:44:15,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 01:44:15,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 01:44:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 01:44:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 01:44:15,334 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 01:44:15,336 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 01:44:16,073 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-10-24 01:44:16,074 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 01:44:16,143 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 01:44:16,143 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 01:44:16,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:44:16 BoogieIcfgContainer [2024-10-24 01:44:16,143 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 01:44:16,146 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 01:44:16,149 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 01:44:16,152 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 01:44:16,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:44:14" (1/3) ... [2024-10-24 01:44:16,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507ba068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:44:16, skipping insertion in model container [2024-10-24 01:44:16,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:44:14" (2/3) ... [2024-10-24 01:44:16,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507ba068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:44:16, skipping insertion in model container [2024-10-24 01:44:16,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:44:16" (3/3) ... [2024-10-24 01:44:16,157 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2024-10-24 01:44:16,170 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 01:44:16,170 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 01:44:16,234 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 01:44:16,241 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;@d14332a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 01:44:16,241 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 01:44:16,248 INFO L276 IsEmpty]: Start isEmpty. Operand has 205 states, 203 states have (on average 1.729064039408867) internal successors, (351), 204 states have internal predecessors, (351), 0 states have call successors, (0), 0 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 01:44:16,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-24 01:44:16,261 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:16,263 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] [2024-10-24 01:44:16,263 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:16,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:16,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1634056533, now seen corresponding path program 1 times [2024-10-24 01:44:16,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:16,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761611362] [2024-10-24 01:44:16,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:16,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:16,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:17,045 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 01:44:17,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:17,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761611362] [2024-10-24 01:44:17,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761611362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:17,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:17,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:44:17,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595148523] [2024-10-24 01:44:17,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:17,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:44:17,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:17,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:44:17,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:44:17,081 INFO L87 Difference]: Start difference. First operand has 205 states, 203 states have (on average 1.729064039408867) internal successors, (351), 204 states have internal predecessors, (351), 0 states have call successors, (0), 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 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:17,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:17,396 INFO L93 Difference]: Finished difference Result 821 states and 1333 transitions. [2024-10-24 01:44:17,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:44:17,399 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-10-24 01:44:17,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:17,420 INFO L225 Difference]: With dead ends: 821 [2024-10-24 01:44:17,421 INFO L226 Difference]: Without dead ends: 713 [2024-10-24 01:44:17,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:44:17,430 INFO L432 NwaCegarLoop]: 344 mSDtfsCounter, 2302 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2302 SdHoareTripleChecker+Valid, 2393 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:17,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2302 Valid, 2393 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:44:17,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-10-24 01:44:17,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 314. [2024-10-24 01:44:17,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 1.4984025559105432) internal successors, (469), 313 states have internal predecessors, (469), 0 states have call successors, (0), 0 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 01:44:17,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 469 transitions. [2024-10-24 01:44:17,516 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 469 transitions. Word has length 79 [2024-10-24 01:44:17,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:17,517 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 469 transitions. [2024-10-24 01:44:17,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 01:44:17,517 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 469 transitions. [2024-10-24 01:44:17,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-24 01:44:17,520 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:17,521 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 01:44:17,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 01:44:17,521 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:17,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:17,522 INFO L85 PathProgramCache]: Analyzing trace with hash 622436384, now seen corresponding path program 1 times [2024-10-24 01:44:17,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:17,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072012128] [2024-10-24 01:44:17,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:17,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:17,965 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 01:44:17,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:17,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072012128] [2024-10-24 01:44:17,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072012128] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:17,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:17,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:44:17,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312887347] [2024-10-24 01:44:17,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:17,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:44:17,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:17,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:44:17,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:44:17,973 INFO L87 Difference]: Start difference. First operand 314 states and 469 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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 01:44:18,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:18,244 INFO L93 Difference]: Finished difference Result 1370 states and 2112 transitions. [2024-10-24 01:44:18,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:44:18,245 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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 01:44:18,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:18,252 INFO L225 Difference]: With dead ends: 1370 [2024-10-24 01:44:18,252 INFO L226 Difference]: Without dead ends: 1132 [2024-10-24 01:44:18,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:44:18,258 INFO L432 NwaCegarLoop]: 585 mSDtfsCounter, 1207 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:18,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1207 Valid, 1828 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:44:18,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2024-10-24 01:44:18,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1124. [2024-10-24 01:44:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 1123 states have (on average 1.5369545859305431) internal successors, (1726), 1123 states have internal predecessors, (1726), 0 states have call successors, (0), 0 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 01:44:18,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1726 transitions. [2024-10-24 01:44:18,310 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1726 transitions. Word has length 80 [2024-10-24 01:44:18,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:18,311 INFO L471 AbstractCegarLoop]: Abstraction has 1124 states and 1726 transitions. [2024-10-24 01:44:18,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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 01:44:18,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1726 transitions. [2024-10-24 01:44:18,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 01:44:18,316 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:18,316 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:18,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 01:44:18,316 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:18,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:18,317 INFO L85 PathProgramCache]: Analyzing trace with hash -2000650849, now seen corresponding path program 1 times [2024-10-24 01:44:18,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:18,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875589519] [2024-10-24 01:44:18,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:18,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:18,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:18,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:18,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875589519] [2024-10-24 01:44:18,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875589519] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:18,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:18,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:44:18,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156456188] [2024-10-24 01:44:18,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:18,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:44:18,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:18,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:44:18,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:44:18,542 INFO L87 Difference]: Start difference. First operand 1124 states and 1726 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 01:44:18,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:18,825 INFO L93 Difference]: Finished difference Result 3048 states and 4736 transitions. [2024-10-24 01:44:18,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:44:18,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-10-24 01:44:18,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:18,836 INFO L225 Difference]: With dead ends: 3048 [2024-10-24 01:44:18,836 INFO L226 Difference]: Without dead ends: 1978 [2024-10-24 01:44:18,839 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 01:44:18,841 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1144 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:18,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 279 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:44:18,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2024-10-24 01:44:18,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1976. [2024-10-24 01:44:18,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1975 states have (on average 1.5458227848101267) internal successors, (3053), 1975 states have internal predecessors, (3053), 0 states have call successors, (0), 0 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 01:44:18,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 3053 transitions. [2024-10-24 01:44:18,892 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 3053 transitions. Word has length 81 [2024-10-24 01:44:18,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:18,894 INFO L471 AbstractCegarLoop]: Abstraction has 1976 states and 3053 transitions. [2024-10-24 01:44:18,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 01:44:18,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 3053 transitions. [2024-10-24 01:44:18,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 01:44:18,905 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:18,906 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:18,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 01:44:18,906 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:18,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:18,907 INFO L85 PathProgramCache]: Analyzing trace with hash -989088912, now seen corresponding path program 1 times [2024-10-24 01:44:18,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:18,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547560998] [2024-10-24 01:44:18,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:18,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:19,084 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 01:44:19,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:19,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547560998] [2024-10-24 01:44:19,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547560998] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:19,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:19,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:44:19,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82346236] [2024-10-24 01:44:19,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:19,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:44:19,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:19,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:44:19,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:44:19,091 INFO L87 Difference]: Start difference. First operand 1976 states and 3053 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 01:44:19,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:19,333 INFO L93 Difference]: Finished difference Result 5483 states and 8532 transitions. [2024-10-24 01:44:19,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:44:19,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-10-24 01:44:19,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:19,347 INFO L225 Difference]: With dead ends: 5483 [2024-10-24 01:44:19,347 INFO L226 Difference]: Without dead ends: 3584 [2024-10-24 01:44:19,371 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 01:44:19,372 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1102 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:19,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 283 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:44:19,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2024-10-24 01:44:19,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 3582. [2024-10-24 01:44:19,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3582 states, 3581 states have (on average 1.5467746439542027) internal successors, (5539), 3581 states have internal predecessors, (5539), 0 states have call successors, (0), 0 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 01:44:19,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3582 states to 3582 states and 5539 transitions. [2024-10-24 01:44:19,459 INFO L78 Accepts]: Start accepts. Automaton has 3582 states and 5539 transitions. Word has length 81 [2024-10-24 01:44:19,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:19,459 INFO L471 AbstractCegarLoop]: Abstraction has 3582 states and 5539 transitions. [2024-10-24 01:44:19,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 01:44:19,460 INFO L276 IsEmpty]: Start isEmpty. Operand 3582 states and 5539 transitions. [2024-10-24 01:44:19,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 01:44:19,463 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:19,463 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:19,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 01:44:19,464 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:19,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:19,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1940012974, now seen corresponding path program 1 times [2024-10-24 01:44:19,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:19,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745289812] [2024-10-24 01:44:19,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:19,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:19,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:19,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:19,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745289812] [2024-10-24 01:44:19,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745289812] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:19,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:19,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:44:19,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606354070] [2024-10-24 01:44:19,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:19,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:44:19,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:19,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:44:19,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:44:19,643 INFO L87 Difference]: Start difference. First operand 3582 states and 5539 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 01:44:19,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:19,908 INFO L93 Difference]: Finished difference Result 10065 states and 15648 transitions. [2024-10-24 01:44:19,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:44:19,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-10-24 01:44:19,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:19,936 INFO L225 Difference]: With dead ends: 10065 [2024-10-24 01:44:19,936 INFO L226 Difference]: Without dead ends: 6624 [2024-10-24 01:44:19,945 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 01:44:19,947 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 1056 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:19,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 294 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:44:19,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6624 states. [2024-10-24 01:44:20,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6624 to 6622. [2024-10-24 01:44:20,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6622 states, 6621 states have (on average 1.5468962392387857) internal successors, (10242), 6621 states have internal predecessors, (10242), 0 states have call successors, (0), 0 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 01:44:20,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6622 states to 6622 states and 10242 transitions. [2024-10-24 01:44:20,101 INFO L78 Accepts]: Start accepts. Automaton has 6622 states and 10242 transitions. Word has length 81 [2024-10-24 01:44:20,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:20,102 INFO L471 AbstractCegarLoop]: Abstraction has 6622 states and 10242 transitions. [2024-10-24 01:44:20,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 01:44:20,103 INFO L276 IsEmpty]: Start isEmpty. Operand 6622 states and 10242 transitions. [2024-10-24 01:44:20,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-24 01:44:20,107 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:20,107 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:20,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 01:44:20,108 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:20,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:20,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1681104641, now seen corresponding path program 1 times [2024-10-24 01:44:20,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:20,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882258048] [2024-10-24 01:44:20,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:20,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:20,301 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 01:44:20,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:20,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882258048] [2024-10-24 01:44:20,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882258048] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:20,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:20,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:44:20,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925907567] [2024-10-24 01:44:20,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:20,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:44:20,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:20,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:44:20,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:44:20,305 INFO L87 Difference]: Start difference. First operand 6622 states and 10242 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 01:44:20,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:20,607 INFO L93 Difference]: Finished difference Result 19243 states and 29833 transitions. [2024-10-24 01:44:20,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:44:20,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-10-24 01:44:20,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:20,665 INFO L225 Difference]: With dead ends: 19243 [2024-10-24 01:44:20,666 INFO L226 Difference]: Without dead ends: 12728 [2024-10-24 01:44:20,680 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 01:44:20,682 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1058 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:20,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 285 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:44:20,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12728 states. [2024-10-24 01:44:20,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12728 to 12726. [2024-10-24 01:44:20,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12726 states, 12725 states have (on average 1.541925343811395) internal successors, (19621), 12725 states have internal predecessors, (19621), 0 states have call successors, (0), 0 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 01:44:21,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12726 states to 12726 states and 19621 transitions. [2024-10-24 01:44:21,001 INFO L78 Accepts]: Start accepts. Automaton has 12726 states and 19621 transitions. Word has length 81 [2024-10-24 01:44:21,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:21,001 INFO L471 AbstractCegarLoop]: Abstraction has 12726 states and 19621 transitions. [2024-10-24 01:44:21,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 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 01:44:21,002 INFO L276 IsEmpty]: Start isEmpty. Operand 12726 states and 19621 transitions. [2024-10-24 01:44:21,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-24 01:44:21,005 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:21,006 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:21,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 01:44:21,006 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:21,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:21,007 INFO L85 PathProgramCache]: Analyzing trace with hash -220051672, now seen corresponding path program 1 times [2024-10-24 01:44:21,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:21,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47476887] [2024-10-24 01:44:21,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:21,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:21,119 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 01:44:21,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:21,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47476887] [2024-10-24 01:44:21,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47476887] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:21,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:21,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:44:21,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7211486] [2024-10-24 01:44:21,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:21,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:44:21,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:21,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:44:21,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:44:21,122 INFO L87 Difference]: Start difference. First operand 12726 states and 19621 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 01:44:21,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:21,431 INFO L93 Difference]: Finished difference Result 35616 states and 54997 transitions. [2024-10-24 01:44:21,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:44:21,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-10-24 01:44:21,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:21,483 INFO L225 Difference]: With dead ends: 35616 [2024-10-24 01:44:21,483 INFO L226 Difference]: Without dead ends: 22953 [2024-10-24 01:44:21,603 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 01:44:21,608 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 1155 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:21,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 284 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 01:44:21,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22953 states. [2024-10-24 01:44:21,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22953 to 22951. [2024-10-24 01:44:22,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22951 states, 22950 states have (on average 1.5374727668845316) internal successors, (35285), 22950 states have internal predecessors, (35285), 0 states have call successors, (0), 0 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 01:44:22,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22951 states to 22951 states and 35285 transitions. [2024-10-24 01:44:22,069 INFO L78 Accepts]: Start accepts. Automaton has 22951 states and 35285 transitions. Word has length 82 [2024-10-24 01:44:22,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:22,069 INFO L471 AbstractCegarLoop]: Abstraction has 22951 states and 35285 transitions. [2024-10-24 01:44:22,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 01:44:22,071 INFO L276 IsEmpty]: Start isEmpty. Operand 22951 states and 35285 transitions. [2024-10-24 01:44:22,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-24 01:44:22,077 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:22,078 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:22,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 01:44:22,078 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:22,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:22,079 INFO L85 PathProgramCache]: Analyzing trace with hash 361903276, now seen corresponding path program 1 times [2024-10-24 01:44:22,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:22,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838091276] [2024-10-24 01:44:22,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:22,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:22,532 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 01:44:22,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:22,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838091276] [2024-10-24 01:44:22,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838091276] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:22,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:22,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 01:44:22,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294580998] [2024-10-24 01:44:22,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:22,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 01:44:22,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:22,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 01:44:22,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 01:44:22,535 INFO L87 Difference]: Start difference. First operand 22951 states and 35285 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 01:44:22,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:22,644 INFO L93 Difference]: Finished difference Result 23529 states and 36150 transitions. [2024-10-24 01:44:22,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 01:44:22,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-10-24 01:44:22,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:22,686 INFO L225 Difference]: With dead ends: 23529 [2024-10-24 01:44:22,687 INFO L226 Difference]: Without dead ends: 23527 [2024-10-24 01:44:22,700 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 01:44:22,701 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 0 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:22,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1105 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:44:22,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23527 states. [2024-10-24 01:44:23,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23527 to 23527. [2024-10-24 01:44:23,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23527 states, 23526 states have (on average 1.524313525461192) internal successors, (35861), 23526 states have internal predecessors, (35861), 0 states have call successors, (0), 0 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 01:44:23,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23527 states to 23527 states and 35861 transitions. [2024-10-24 01:44:23,241 INFO L78 Accepts]: Start accepts. Automaton has 23527 states and 35861 transitions. Word has length 82 [2024-10-24 01:44:23,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:23,241 INFO L471 AbstractCegarLoop]: Abstraction has 23527 states and 35861 transitions. [2024-10-24 01:44:23,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 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 01:44:23,242 INFO L276 IsEmpty]: Start isEmpty. Operand 23527 states and 35861 transitions. [2024-10-24 01:44:23,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-24 01:44:23,248 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:23,248 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:23,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 01:44:23,248 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:23,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:23,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1405559403, now seen corresponding path program 1 times [2024-10-24 01:44:23,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:23,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031172765] [2024-10-24 01:44:23,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:23,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:23,415 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 01:44:23,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:23,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031172765] [2024-10-24 01:44:23,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031172765] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:23,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:23,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 01:44:23,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058499290] [2024-10-24 01:44:23,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:23,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 01:44:23,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:23,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 01:44:23,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:44:23,417 INFO L87 Difference]: Start difference. First operand 23527 states and 35861 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 01:44:23,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:23,756 INFO L93 Difference]: Finished difference Result 65931 states and 100223 transitions. [2024-10-24 01:44:23,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 01:44:23,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2024-10-24 01:44:23,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:23,835 INFO L225 Difference]: With dead ends: 65931 [2024-10-24 01:44:23,836 INFO L226 Difference]: Without dead ends: 43209 [2024-10-24 01:44:23,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 01:44:23,875 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 192 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:23,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 609 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:44:23,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43209 states. [2024-10-24 01:44:24,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43209 to 43207. [2024-10-24 01:44:24,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43207 states, 43206 states have (on average 1.5104615099754664) internal successors, (65261), 43206 states have internal predecessors, (65261), 0 states have call successors, (0), 0 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 01:44:24,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43207 states to 43207 states and 65261 transitions. [2024-10-24 01:44:24,686 INFO L78 Accepts]: Start accepts. Automaton has 43207 states and 65261 transitions. Word has length 83 [2024-10-24 01:44:24,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:24,687 INFO L471 AbstractCegarLoop]: Abstraction has 43207 states and 65261 transitions. [2024-10-24 01:44:24,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 0 states have call successors, (0), 0 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 01:44:24,687 INFO L276 IsEmpty]: Start isEmpty. Operand 43207 states and 65261 transitions. [2024-10-24 01:44:24,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 01:44:24,694 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:24,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:24,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 01:44:24,695 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:24,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:24,695 INFO L85 PathProgramCache]: Analyzing trace with hash 2050104330, now seen corresponding path program 1 times [2024-10-24 01:44:24,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:24,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570112675] [2024-10-24 01:44:24,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:24,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:24,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:24,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:24,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570112675] [2024-10-24 01:44:24,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570112675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:24,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:24,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:44:24,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736049043] [2024-10-24 01:44:24,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:24,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:44:24,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:24,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:44:24,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:44:24,771 INFO L87 Difference]: Start difference. First operand 43207 states and 65261 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 01:44:25,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:25,490 INFO L93 Difference]: Finished difference Result 99074 states and 149694 transitions. [2024-10-24 01:44:25,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:44:25,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-24 01:44:25,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:25,637 INFO L225 Difference]: With dead ends: 99074 [2024-10-24 01:44:25,638 INFO L226 Difference]: Without dead ends: 60624 [2024-10-24 01:44:25,847 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 01:44:25,848 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 200 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 550 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 01:44:25,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 550 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:44:25,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60624 states. [2024-10-24 01:44:26,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60624 to 43037. [2024-10-24 01:44:26,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43037 states, 43036 states have (on average 1.4981643275397343) internal successors, (64475), 43036 states have internal predecessors, (64475), 0 states have call successors, (0), 0 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 01:44:26,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43037 states to 43037 states and 64475 transitions. [2024-10-24 01:44:26,640 INFO L78 Accepts]: Start accepts. Automaton has 43037 states and 64475 transitions. Word has length 84 [2024-10-24 01:44:26,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:26,640 INFO L471 AbstractCegarLoop]: Abstraction has 43037 states and 64475 transitions. [2024-10-24 01:44:26,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 01:44:26,641 INFO L276 IsEmpty]: Start isEmpty. Operand 43037 states and 64475 transitions. [2024-10-24 01:44:26,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 01:44:26,649 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:26,649 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:26,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 01:44:26,649 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:26,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:26,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1639566614, now seen corresponding path program 1 times [2024-10-24 01:44:26,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:26,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690696838] [2024-10-24 01:44:26,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:26,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:26,963 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 01:44:26,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:26,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690696838] [2024-10-24 01:44:26,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690696838] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:26,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:26,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:44:26,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343255231] [2024-10-24 01:44:26,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:26,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:44:26,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:26,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:44:26,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:44:26,966 INFO L87 Difference]: Start difference. First operand 43037 states and 64475 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 01:44:27,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:27,272 INFO L93 Difference]: Finished difference Result 84822 states and 126978 transitions. [2024-10-24 01:44:27,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:44:27,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-24 01:44:27,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:27,372 INFO L225 Difference]: With dead ends: 84822 [2024-10-24 01:44:27,372 INFO L226 Difference]: Without dead ends: 55042 [2024-10-24 01:44:27,418 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 01:44:27,419 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 183 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 535 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 01:44:27,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 535 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:44:27,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55042 states. [2024-10-24 01:44:28,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55042 to 54557. [2024-10-24 01:44:28,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54557 states, 54556 states have (on average 1.4773810396656646) internal successors, (80600), 54556 states have internal predecessors, (80600), 0 states have call successors, (0), 0 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 01:44:28,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54557 states to 54557 states and 80600 transitions. [2024-10-24 01:44:28,842 INFO L78 Accepts]: Start accepts. Automaton has 54557 states and 80600 transitions. Word has length 84 [2024-10-24 01:44:28,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:28,842 INFO L471 AbstractCegarLoop]: Abstraction has 54557 states and 80600 transitions. [2024-10-24 01:44:28,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 01:44:28,843 INFO L276 IsEmpty]: Start isEmpty. Operand 54557 states and 80600 transitions. [2024-10-24 01:44:28,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 01:44:28,859 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:28,860 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:28,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 01:44:28,860 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:28,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:28,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1418496759, now seen corresponding path program 1 times [2024-10-24 01:44:28,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:28,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880120290] [2024-10-24 01:44:28,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:28,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:28,946 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 01:44:28,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:28,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880120290] [2024-10-24 01:44:28,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880120290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:28,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:28,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:44:28,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317849778] [2024-10-24 01:44:28,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:28,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:44:28,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:28,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:44:28,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:44:28,949 INFO L87 Difference]: Start difference. First operand 54557 states and 80600 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 01:44:29,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:29,175 INFO L93 Difference]: Finished difference Result 90487 states and 133319 transitions. [2024-10-24 01:44:29,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:44:29,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-24 01:44:29,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:29,274 INFO L225 Difference]: With dead ends: 90487 [2024-10-24 01:44:29,274 INFO L226 Difference]: Without dead ends: 61933 [2024-10-24 01:44:29,315 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 01:44:29,316 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 171 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 533 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 01:44:29,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 533 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:44:29,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61933 states. [2024-10-24 01:44:30,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61933 to 61380. [2024-10-24 01:44:30,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61380 states, 61379 states have (on average 1.4515387999152805) internal successors, (89094), 61379 states have internal predecessors, (89094), 0 states have call successors, (0), 0 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 01:44:30,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61380 states to 61380 states and 89094 transitions. [2024-10-24 01:44:30,420 INFO L78 Accepts]: Start accepts. Automaton has 61380 states and 89094 transitions. Word has length 84 [2024-10-24 01:44:30,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:30,420 INFO L471 AbstractCegarLoop]: Abstraction has 61380 states and 89094 transitions. [2024-10-24 01:44:30,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 01:44:30,420 INFO L276 IsEmpty]: Start isEmpty. Operand 61380 states and 89094 transitions. [2024-10-24 01:44:30,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 01:44:30,429 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:30,429 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:30,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 01:44:30,430 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:30,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:30,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1932108068, now seen corresponding path program 1 times [2024-10-24 01:44:30,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:30,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107035682] [2024-10-24 01:44:30,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:30,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:30,513 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 01:44:30,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:30,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107035682] [2024-10-24 01:44:30,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107035682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:30,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:30,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:44:30,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173530411] [2024-10-24 01:44:30,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:30,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:44:30,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:30,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:44:30,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:44:30,516 INFO L87 Difference]: Start difference. First operand 61380 states and 89094 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 01:44:30,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:30,787 INFO L93 Difference]: Finished difference Result 83829 states and 121193 transitions. [2024-10-24 01:44:30,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:44:30,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-24 01:44:30,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:30,865 INFO L225 Difference]: With dead ends: 83829 [2024-10-24 01:44:30,865 INFO L226 Difference]: Without dead ends: 62995 [2024-10-24 01:44:30,904 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 01:44:30,906 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 163 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:30,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 534 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:44:30,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62995 states. [2024-10-24 01:44:31,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62995 to 56785. [2024-10-24 01:44:31,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56785 states, 56784 states have (on average 1.4281311637080867) internal successors, (81095), 56784 states have internal predecessors, (81095), 0 states have call successors, (0), 0 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 01:44:31,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56785 states to 56785 states and 81095 transitions. [2024-10-24 01:44:31,811 INFO L78 Accepts]: Start accepts. Automaton has 56785 states and 81095 transitions. Word has length 84 [2024-10-24 01:44:31,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:31,811 INFO L471 AbstractCegarLoop]: Abstraction has 56785 states and 81095 transitions. [2024-10-24 01:44:31,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 01:44:31,811 INFO L276 IsEmpty]: Start isEmpty. Operand 56785 states and 81095 transitions. [2024-10-24 01:44:31,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 01:44:31,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:31,822 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:31,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 01:44:31,822 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:31,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:31,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1919152151, now seen corresponding path program 1 times [2024-10-24 01:44:31,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:31,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969297372] [2024-10-24 01:44:31,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:31,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:31,975 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 01:44:31,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:31,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969297372] [2024-10-24 01:44:31,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969297372] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:31,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:31,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:44:31,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234867530] [2024-10-24 01:44:31,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:31,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:44:31,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:31,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:44:31,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:44:31,978 INFO L87 Difference]: Start difference. First operand 56785 states and 81095 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 01:44:32,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:32,857 INFO L93 Difference]: Finished difference Result 142548 states and 204891 transitions. [2024-10-24 01:44:32,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:44:32,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-24 01:44:32,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:33,054 INFO L225 Difference]: With dead ends: 142548 [2024-10-24 01:44:33,054 INFO L226 Difference]: Without dead ends: 116790 [2024-10-24 01:44:33,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:44:33,073 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 1661 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:33,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 1729 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:44:33,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116790 states. [2024-10-24 01:44:33,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116790 to 82306. [2024-10-24 01:44:34,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82306 states, 82305 states have (on average 1.4275074418322096) internal successors, (117491), 82305 states have internal predecessors, (117491), 0 states have call successors, (0), 0 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 01:44:34,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82306 states to 82306 states and 117491 transitions. [2024-10-24 01:44:34,175 INFO L78 Accepts]: Start accepts. Automaton has 82306 states and 117491 transitions. Word has length 84 [2024-10-24 01:44:34,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:34,175 INFO L471 AbstractCegarLoop]: Abstraction has 82306 states and 117491 transitions. [2024-10-24 01:44:34,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 01:44:34,176 INFO L276 IsEmpty]: Start isEmpty. Operand 82306 states and 117491 transitions. [2024-10-24 01:44:34,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 01:44:34,184 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:34,184 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:34,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 01:44:34,184 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:34,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:34,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1838586634, now seen corresponding path program 1 times [2024-10-24 01:44:34,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:34,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366849407] [2024-10-24 01:44:34,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:34,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:34,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:34,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:34,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366849407] [2024-10-24 01:44:34,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366849407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:34,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:34,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:44:34,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689468216] [2024-10-24 01:44:34,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:34,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:44:34,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:34,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:44:34,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:44:34,347 INFO L87 Difference]: Start difference. First operand 82306 states and 117491 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 01:44:35,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:35,334 INFO L93 Difference]: Finished difference Result 152038 states and 218303 transitions. [2024-10-24 01:44:35,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:44:35,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-24 01:44:35,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:35,521 INFO L225 Difference]: With dead ends: 152038 [2024-10-24 01:44:35,521 INFO L226 Difference]: Without dead ends: 134312 [2024-10-24 01:44:35,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:44:35,570 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 1826 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1826 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:35,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1826 Valid, 1636 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:44:35,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134312 states. [2024-10-24 01:44:37,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134312 to 99849. [2024-10-24 01:44:37,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99849 states, 99848 states have (on average 1.4279905456293567) internal successors, (142582), 99848 states have internal predecessors, (142582), 0 states have call successors, (0), 0 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 01:44:37,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99849 states to 99849 states and 142582 transitions. [2024-10-24 01:44:37,286 INFO L78 Accepts]: Start accepts. Automaton has 99849 states and 142582 transitions. Word has length 84 [2024-10-24 01:44:37,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:37,286 INFO L471 AbstractCegarLoop]: Abstraction has 99849 states and 142582 transitions. [2024-10-24 01:44:37,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 01:44:37,287 INFO L276 IsEmpty]: Start isEmpty. Operand 99849 states and 142582 transitions. [2024-10-24 01:44:37,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 01:44:37,294 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:37,294 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:37,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 01:44:37,294 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:37,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:37,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1568276092, now seen corresponding path program 1 times [2024-10-24 01:44:37,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:37,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303671926] [2024-10-24 01:44:37,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:37,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:37,434 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 01:44:37,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:37,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303671926] [2024-10-24 01:44:37,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303671926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:37,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:37,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:44:37,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160261196] [2024-10-24 01:44:37,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:37,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:44:37,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:37,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:44:37,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:44:37,438 INFO L87 Difference]: Start difference. First operand 99849 states and 142582 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 01:44:38,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:38,569 INFO L93 Difference]: Finished difference Result 150930 states and 216417 transitions. [2024-10-24 01:44:38,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:44:38,569 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-24 01:44:38,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:38,839 INFO L225 Difference]: With dead ends: 150930 [2024-10-24 01:44:38,839 INFO L226 Difference]: Without dead ends: 145780 [2024-10-24 01:44:38,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:44:38,890 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 1763 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:38,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1763 Valid, 1784 Invalid, 103 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:44:38,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145780 states. [2024-10-24 01:44:40,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145780 to 104925. [2024-10-24 01:44:40,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104925 states, 104924 states have (on average 1.4281575235408486) internal successors, (149848), 104924 states have internal predecessors, (149848), 0 states have call successors, (0), 0 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 01:44:40,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104925 states to 104925 states and 149848 transitions. [2024-10-24 01:44:40,522 INFO L78 Accepts]: Start accepts. Automaton has 104925 states and 149848 transitions. Word has length 84 [2024-10-24 01:44:40,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:40,522 INFO L471 AbstractCegarLoop]: Abstraction has 104925 states and 149848 transitions. [2024-10-24 01:44:40,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 01:44:40,523 INFO L276 IsEmpty]: Start isEmpty. Operand 104925 states and 149848 transitions. [2024-10-24 01:44:40,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 01:44:40,530 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:40,530 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:40,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 01:44:40,531 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:40,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:40,531 INFO L85 PathProgramCache]: Analyzing trace with hash 589823305, now seen corresponding path program 1 times [2024-10-24 01:44:40,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:40,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175077862] [2024-10-24 01:44:40,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:40,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:41,260 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 01:44:41,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:41,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175077862] [2024-10-24 01:44:41,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175077862] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:41,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:41,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:44:41,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572937207] [2024-10-24 01:44:41,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:41,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:44:41,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:41,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:44:41,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:44:41,264 INFO L87 Difference]: Start difference. First operand 104925 states and 149848 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 01:44:41,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:41,939 INFO L93 Difference]: Finished difference Result 162294 states and 232763 transitions. [2024-10-24 01:44:41,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:44:41,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-10-24 01:44:41,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:42,152 INFO L225 Difference]: With dead ends: 162294 [2024-10-24 01:44:42,152 INFO L226 Difference]: Without dead ends: 150760 [2024-10-24 01:44:42,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:44:42,213 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 1569 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:42,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1569 Valid, 2039 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:44:42,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150760 states. [2024-10-24 01:44:43,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150760 to 112149. [2024-10-24 01:44:43,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112149 states, 112148 states have (on average 1.429165031922103) internal successors, (160278), 112148 states have internal predecessors, (160278), 0 states have call successors, (0), 0 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 01:44:44,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112149 states to 112149 states and 160278 transitions. [2024-10-24 01:44:44,110 INFO L78 Accepts]: Start accepts. Automaton has 112149 states and 160278 transitions. Word has length 84 [2024-10-24 01:44:44,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:44,110 INFO L471 AbstractCegarLoop]: Abstraction has 112149 states and 160278 transitions. [2024-10-24 01:44:44,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 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 01:44:44,112 INFO L276 IsEmpty]: Start isEmpty. Operand 112149 states and 160278 transitions. [2024-10-24 01:44:44,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 01:44:44,122 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:44,122 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:44,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 01:44:44,122 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:44,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:44,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1918565360, now seen corresponding path program 1 times [2024-10-24 01:44:44,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:44,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942567323] [2024-10-24 01:44:44,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:44,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:44,834 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 01:44:44,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:44,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942567323] [2024-10-24 01:44:44,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942567323] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:44,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:44,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 01:44:44,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743321433] [2024-10-24 01:44:44,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:44,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:44:44,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:44,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:44:44,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:44:44,836 INFO L87 Difference]: Start difference. First operand 112149 states and 160278 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 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 01:44:45,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:45,491 INFO L93 Difference]: Finished difference Result 204103 states and 292815 transitions. [2024-10-24 01:44:45,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 01:44:45,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-10-24 01:44:45,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:45,698 INFO L225 Difference]: With dead ends: 204103 [2024-10-24 01:44:45,698 INFO L226 Difference]: Without dead ends: 176249 [2024-10-24 01:44:45,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-24 01:44:45,765 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 1668 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:45,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 2050 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 01:44:45,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176249 states. [2024-10-24 01:44:47,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176249 to 131138. [2024-10-24 01:44:47,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131138 states, 131137 states have (on average 1.4291161152077598) internal successors, (187410), 131137 states have internal predecessors, (187410), 0 states have call successors, (0), 0 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 01:44:48,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131138 states to 131138 states and 187410 transitions. [2024-10-24 01:44:48,160 INFO L78 Accepts]: Start accepts. Automaton has 131138 states and 187410 transitions. Word has length 85 [2024-10-24 01:44:48,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:48,161 INFO L471 AbstractCegarLoop]: Abstraction has 131138 states and 187410 transitions. [2024-10-24 01:44:48,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 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 01:44:48,161 INFO L276 IsEmpty]: Start isEmpty. Operand 131138 states and 187410 transitions. [2024-10-24 01:44:48,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-24 01:44:48,173 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:48,173 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:48,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 01:44:48,173 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:48,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:48,174 INFO L85 PathProgramCache]: Analyzing trace with hash -931169472, now seen corresponding path program 1 times [2024-10-24 01:44:48,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:48,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830264391] [2024-10-24 01:44:48,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:48,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:48,246 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 01:44:48,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:48,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830264391] [2024-10-24 01:44:48,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830264391] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:48,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:48,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 01:44:48,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197709280] [2024-10-24 01:44:48,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:48,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 01:44:48,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:48,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 01:44:48,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 01:44:48,249 INFO L87 Difference]: Start difference. First operand 131138 states and 187410 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 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 01:44:49,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:49,175 INFO L93 Difference]: Finished difference Result 286520 states and 407655 transitions. [2024-10-24 01:44:49,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 01:44:49,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-10-24 01:44:49,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:50,188 INFO L225 Difference]: With dead ends: 286520 [2024-10-24 01:44:50,189 INFO L226 Difference]: Without dead ends: 160529 [2024-10-24 01:44:50,216 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 01:44:50,216 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 186 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 640 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 01:44:50,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 640 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 01:44:50,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160529 states. [2024-10-24 01:44:51,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160529 to 144009. [2024-10-24 01:44:52,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144009 states, 144008 states have (on average 1.3987972890394977) internal successors, (201438), 144008 states have internal predecessors, (201438), 0 states have call successors, (0), 0 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 01:44:52,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144009 states to 144009 states and 201438 transitions. [2024-10-24 01:44:52,312 INFO L78 Accepts]: Start accepts. Automaton has 144009 states and 201438 transitions. Word has length 87 [2024-10-24 01:44:52,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:52,312 INFO L471 AbstractCegarLoop]: Abstraction has 144009 states and 201438 transitions. [2024-10-24 01:44:52,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 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 01:44:52,312 INFO L276 IsEmpty]: Start isEmpty. Operand 144009 states and 201438 transitions. [2024-10-24 01:44:52,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-24 01:44:52,329 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:52,329 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:52,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 01:44:52,329 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:52,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:52,330 INFO L85 PathProgramCache]: Analyzing trace with hash -568528588, now seen corresponding path program 1 times [2024-10-24 01:44:52,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:52,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280194109] [2024-10-24 01:44:52,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:52,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:52,462 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 01:44:52,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:52,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280194109] [2024-10-24 01:44:52,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280194109] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:52,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:52,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:44:52,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421714106] [2024-10-24 01:44:52,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:52,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:44:52,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:52,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:44:52,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:44:52,465 INFO L87 Difference]: Start difference. First operand 144009 states and 201438 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 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 01:44:54,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:44:54,597 INFO L93 Difference]: Finished difference Result 374383 states and 522447 transitions. [2024-10-24 01:44:54,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:44:54,598 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-10-24 01:44:54,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:44:55,032 INFO L225 Difference]: With dead ends: 374383 [2024-10-24 01:44:55,032 INFO L226 Difference]: Without dead ends: 320723 [2024-10-24 01:44:55,122 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 01:44:55,123 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 2119 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2119 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 01:44:55,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2119 Valid, 568 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 01:44:55,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320723 states. [2024-10-24 01:44:58,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320723 to 144057. [2024-10-24 01:44:58,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144057 states, 144056 states have (on average 1.3987754762036986) internal successors, (201502), 144056 states have internal predecessors, (201502), 0 states have call successors, (0), 0 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 01:44:58,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144057 states to 144057 states and 201502 transitions. [2024-10-24 01:44:58,481 INFO L78 Accepts]: Start accepts. Automaton has 144057 states and 201502 transitions. Word has length 89 [2024-10-24 01:44:58,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 01:44:58,482 INFO L471 AbstractCegarLoop]: Abstraction has 144057 states and 201502 transitions. [2024-10-24 01:44:58,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 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 01:44:58,482 INFO L276 IsEmpty]: Start isEmpty. Operand 144057 states and 201502 transitions. [2024-10-24 01:44:58,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-24 01:44:58,497 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 01:44:58,497 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 01:44:58,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 01:44:58,497 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 01:44:58,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 01:44:58,498 INFO L85 PathProgramCache]: Analyzing trace with hash -63333267, now seen corresponding path program 1 times [2024-10-24 01:44:58,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 01:44:58,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916328584] [2024-10-24 01:44:58,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 01:44:58,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 01:44:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 01:44:58,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 01:44:58,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 01:44:58,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916328584] [2024-10-24 01:44:58,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916328584] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 01:44:58,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 01:44:58,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 01:44:58,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923952398] [2024-10-24 01:44:58,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 01:44:58,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 01:44:58,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 01:44:58,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 01:44:58,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 01:44:58,640 INFO L87 Difference]: Start difference. First operand 144057 states and 201502 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 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 01:45:00,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 01:45:00,944 INFO L93 Difference]: Finished difference Result 487579 states and 678266 transitions. [2024-10-24 01:45:00,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 01:45:00,944 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2024-10-24 01:45:00,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 01:45:01,649 INFO L225 Difference]: With dead ends: 487579 [2024-10-24 01:45:01,649 INFO L226 Difference]: Without dead ends: 418689 [2024-10-24 01:45:01,792 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 01:45:01,793 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 1886 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 01:45:01,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 570 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 01:45:02,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418689 states.