./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.UNBOUNDED.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-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 d07f8866cb9bb11c792ba110404f1fc964b1e4b380540b8d73177141eae78bfc --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:52:15,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:52:15,451 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:52:15,457 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:52:15,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:52:15,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:52:15,488 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:52:15,489 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:52:15,490 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:52:15,491 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:52:15,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:52:15,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:52:15,492 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:52:15,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:52:15,494 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:52:15,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:52:15,495 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:52:15,495 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:52:15,495 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:52:15,496 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:52:15,496 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:52:15,498 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:52:15,500 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:52:15,500 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:52:15,501 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:52:15,501 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:52:15,501 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:52:15,501 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:52:15,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:52:15,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:52:15,502 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:52:15,502 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:52:15,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:52:15,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:52:15,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:52:15,504 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:52:15,505 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:52:15,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:52:15,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:52:15,506 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:52:15,506 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:52:15,507 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:52:15,507 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d07f8866cb9bb11c792ba110404f1fc964b1e4b380540b8d73177141eae78bfc [2024-10-14 03:52:15,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:52:15,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:52:15,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:52:15,865 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:52:15,865 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:52:15,866 INFO L431 ainManager$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.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-10-14 03:52:17,284 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:52:17,524 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:52:17,527 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-10-14 03:52:17,547 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e15d31e4/476cf177f5734a90b271ba0701276b62/FLAGdae6de4e7 [2024-10-14 03:52:17,866 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e15d31e4/476cf177f5734a90b271ba0701276b62 [2024-10-14 03:52:17,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:52:17,869 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:52:17,870 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:52:17,870 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:52:17,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:52:17,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:52:17" (1/1) ... [2024-10-14 03:52:17,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9750a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:17, skipping insertion in model container [2024-10-14 03:52:17,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:52:17" (1/1) ... [2024-10-14 03:52:17,925 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:52:18,144 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.UNBOUNDED.pals.c.v+cfa-reducer.c[6358,6371] [2024-10-14 03:52:18,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:52:18,217 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:52:18,281 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.UNBOUNDED.pals.c.v+cfa-reducer.c[6358,6371] [2024-10-14 03:52:18,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:52:18,345 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:52:18,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:18 WrapperNode [2024-10-14 03:52:18,346 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:52:18,347 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:52:18,347 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:52:18,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:52:18,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:18" (1/1) ... [2024-10-14 03:52:18,361 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:18" (1/1) ... [2024-10-14 03:52:18,400 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 559 [2024-10-14 03:52:18,401 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:52:18,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:52:18,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:52:18,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:52:18,413 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:18" (1/1) ... [2024-10-14 03:52:18,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:18" (1/1) ... [2024-10-14 03:52:18,417 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:18" (1/1) ... [2024-10-14 03:52:18,435 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 03:52:18,436 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:18" (1/1) ... [2024-10-14 03:52:18,436 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:18" (1/1) ... [2024-10-14 03:52:18,445 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:18" (1/1) ... [2024-10-14 03:52:18,452 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:18" (1/1) ... [2024-10-14 03:52:18,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:18" (1/1) ... [2024-10-14 03:52:18,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:18" (1/1) ... [2024-10-14 03:52:18,465 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:52:18,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:52:18,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:52:18,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:52:18,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:18" (1/1) ... [2024-10-14 03:52:18,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:52:18,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:52:18,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 03:52:18,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 03:52:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:52:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:52:18,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:52:18,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:52:18,780 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:52:18,782 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:52:19,311 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-10-14 03:52:19,311 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:52:19,360 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:52:19,361 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 03:52:19,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:52:19 BoogieIcfgContainer [2024-10-14 03:52:19,361 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:52:19,366 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:52:19,366 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:52:19,370 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:52:19,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:52:17" (1/3) ... [2024-10-14 03:52:19,371 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cefe113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:52:19, skipping insertion in model container [2024-10-14 03:52:19,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:18" (2/3) ... [2024-10-14 03:52:19,371 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cefe113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:52:19, skipping insertion in model container [2024-10-14 03:52:19,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:52:19" (3/3) ... [2024-10-14 03:52:19,373 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-10-14 03:52:19,390 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:52:19,391 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:52:19,470 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:52:19,480 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;@63d206b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:52:19,480 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:52:19,486 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 129 states have (on average 1.7054263565891472) internal successors, (220), 130 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:19,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-14 03:52:19,497 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:19,499 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] [2024-10-14 03:52:19,500 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:19,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:19,507 INFO L85 PathProgramCache]: Analyzing trace with hash 2126990248, now seen corresponding path program 1 times [2024-10-14 03:52:19,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:19,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551780383] [2024-10-14 03:52:19,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:19,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:19,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:19,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:19,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551780383] [2024-10-14 03:52:19,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551780383] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:19,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:19,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:19,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083345349] [2024-10-14 03:52:19,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:20,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:20,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:20,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:20,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:20,027 INFO L87 Difference]: Start difference. First operand has 131 states, 129 states have (on average 1.7054263565891472) internal successors, (220), 130 states have internal predecessors, (220), 0 states have call successors, (0), 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 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:20,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:20,121 INFO L93 Difference]: Finished difference Result 309 states and 500 transitions. [2024-10-14 03:52:20,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:20,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-10-14 03:52:20,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:20,136 INFO L225 Difference]: With dead ends: 309 [2024-10-14 03:52:20,136 INFO L226 Difference]: Without dead ends: 208 [2024-10-14 03:52:20,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:20,142 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 159 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:20,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 463 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:20,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-10-14 03:52:20,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 206. [2024-10-14 03:52:20,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 1.502439024390244) internal successors, (308), 205 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:20,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 308 transitions. [2024-10-14 03:52:20,205 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 308 transitions. Word has length 59 [2024-10-14 03:52:20,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:20,206 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 308 transitions. [2024-10-14 03:52:20,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:20,206 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 308 transitions. [2024-10-14 03:52:20,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-14 03:52:20,208 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:20,208 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] [2024-10-14 03:52:20,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:52:20,209 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:20,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:20,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1790770281, now seen corresponding path program 1 times [2024-10-14 03:52:20,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:20,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989168098] [2024-10-14 03:52:20,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:20,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:20,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:20,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:20,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989168098] [2024-10-14 03:52:20,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989168098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:20,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:20,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:20,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293125473] [2024-10-14 03:52:20,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:20,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:20,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:20,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:20,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:20,373 INFO L87 Difference]: Start difference. First operand 206 states and 308 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:20,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:20,414 INFO L93 Difference]: Finished difference Result 518 states and 804 transitions. [2024-10-14 03:52:20,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:20,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-10-14 03:52:20,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:20,417 INFO L225 Difference]: With dead ends: 518 [2024-10-14 03:52:20,417 INFO L226 Difference]: Without dead ends: 346 [2024-10-14 03:52:20,418 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 [2024-10-14 03:52:20,419 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 130 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:20,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 406 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:20,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-10-14 03:52:20,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 344. [2024-10-14 03:52:20,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 343 states have (on average 1.5364431486880465) internal successors, (527), 343 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:20,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 527 transitions. [2024-10-14 03:52:20,453 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 527 transitions. Word has length 60 [2024-10-14 03:52:20,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:20,454 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 527 transitions. [2024-10-14 03:52:20,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:20,454 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 527 transitions. [2024-10-14 03:52:20,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 03:52:20,456 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:20,456 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] [2024-10-14 03:52:20,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:52:20,457 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:20,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:20,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1975923259, now seen corresponding path program 1 times [2024-10-14 03:52:20,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:20,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613206089] [2024-10-14 03:52:20,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:20,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:20,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:20,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:20,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613206089] [2024-10-14 03:52:20,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613206089] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:20,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:20,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:20,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800993440] [2024-10-14 03:52:20,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:20,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:20,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:20,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:20,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:20,596 INFO L87 Difference]: Start difference. First operand 344 states and 527 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:20,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:20,633 INFO L93 Difference]: Finished difference Result 900 states and 1409 transitions. [2024-10-14 03:52:20,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:20,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-10-14 03:52:20,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:20,639 INFO L225 Difference]: With dead ends: 900 [2024-10-14 03:52:20,639 INFO L226 Difference]: Without dead ends: 590 [2024-10-14 03:52:20,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:20,645 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 125 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:20,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 391 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:20,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-10-14 03:52:20,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 588. [2024-10-14 03:52:20,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 587 states have (on average 1.5519591141396933) internal successors, (911), 587 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:20,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 911 transitions. [2024-10-14 03:52:20,677 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 911 transitions. Word has length 61 [2024-10-14 03:52:20,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:20,677 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 911 transitions. [2024-10-14 03:52:20,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:20,678 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 911 transitions. [2024-10-14 03:52:20,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-14 03:52:20,679 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:20,679 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] [2024-10-14 03:52:20,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:52:20,680 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:20,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:20,681 INFO L85 PathProgramCache]: Analyzing trace with hash -557509836, now seen corresponding path program 1 times [2024-10-14 03:52:20,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:20,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232730743] [2024-10-14 03:52:20,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:20,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:20,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:20,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232730743] [2024-10-14 03:52:20,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232730743] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:20,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:20,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:20,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2960135] [2024-10-14 03:52:20,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:20,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:20,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:20,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:20,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:20,794 INFO L87 Difference]: Start difference. First operand 588 states and 911 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:20,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:20,826 INFO L93 Difference]: Finished difference Result 1568 states and 2457 transitions. [2024-10-14 03:52:20,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:20,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-10-14 03:52:20,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:20,832 INFO L225 Difference]: With dead ends: 1568 [2024-10-14 03:52:20,832 INFO L226 Difference]: Without dead ends: 1014 [2024-10-14 03:52:20,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:20,838 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 120 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:20,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 376 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:20,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-10-14 03:52:20,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 1012. [2024-10-14 03:52:20,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 1011 states have (on average 1.5539070227497527) internal successors, (1571), 1011 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:20,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1571 transitions. [2024-10-14 03:52:20,868 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1571 transitions. Word has length 62 [2024-10-14 03:52:20,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:20,869 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1571 transitions. [2024-10-14 03:52:20,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:20,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1571 transitions. [2024-10-14 03:52:20,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-14 03:52:20,874 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:20,874 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:20,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:52:20,875 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:20,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:20,875 INFO L85 PathProgramCache]: Analyzing trace with hash -343299870, now seen corresponding path program 1 times [2024-10-14 03:52:20,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:20,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135777764] [2024-10-14 03:52:20,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:20,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:21,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:21,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:21,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135777764] [2024-10-14 03:52:21,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135777764] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:21,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:21,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:52:21,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719722460] [2024-10-14 03:52:21,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:21,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:21,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:21,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:21,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:21,130 INFO L87 Difference]: Start difference. First operand 1012 states and 1571 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:21,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:21,346 INFO L93 Difference]: Finished difference Result 6880 states and 10793 transitions. [2024-10-14 03:52:21,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:52:21,348 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2024-10-14 03:52:21,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:21,372 INFO L225 Difference]: With dead ends: 6880 [2024-10-14 03:52:21,372 INFO L226 Difference]: Without dead ends: 5902 [2024-10-14 03:52:21,377 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 [2024-10-14 03:52:21,378 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 1406 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 2211 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 [2024-10-14 03:52:21,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 2211 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:52:21,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5902 states. [2024-10-14 03:52:21,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5902 to 1988. [2024-10-14 03:52:21,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1987 states have (on average 1.5475591343734272) internal successors, (3075), 1987 states have internal predecessors, (3075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:21,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 3075 transitions. [2024-10-14 03:52:21,464 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 3075 transitions. Word has length 63 [2024-10-14 03:52:21,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:21,466 INFO L471 AbstractCegarLoop]: Abstraction has 1988 states and 3075 transitions. [2024-10-14 03:52:21,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:21,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 3075 transitions. [2024-10-14 03:52:21,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-14 03:52:21,469 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:21,469 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:21,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:52:21,469 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:21,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:21,470 INFO L85 PathProgramCache]: Analyzing trace with hash -2071817615, now seen corresponding path program 1 times [2024-10-14 03:52:21,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:21,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446386954] [2024-10-14 03:52:21,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:21,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:21,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:21,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:21,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446386954] [2024-10-14 03:52:21,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446386954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:21,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:21,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:52:21,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522841944] [2024-10-14 03:52:21,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:21,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:21,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:21,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:21,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:21,815 INFO L87 Difference]: Start difference. First operand 1988 states and 3075 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:22,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:22,004 INFO L93 Difference]: Finished difference Result 10478 states and 16168 transitions. [2024-10-14 03:52:22,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:52:22,005 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-14 03:52:22,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:22,037 INFO L225 Difference]: With dead ends: 10478 [2024-10-14 03:52:22,038 INFO L226 Difference]: Without dead ends: 8524 [2024-10-14 03:52:22,047 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 [2024-10-14 03:52:22,050 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 646 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:22,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 959 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:52:22,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8524 states. [2024-10-14 03:52:22,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8524 to 8516. [2024-10-14 03:52:22,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8516 states, 8515 states have (on average 1.5374045801526717) internal successors, (13091), 8515 states have internal predecessors, (13091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:22,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8516 states to 8516 states and 13091 transitions. [2024-10-14 03:52:22,312 INFO L78 Accepts]: Start accepts. Automaton has 8516 states and 13091 transitions. Word has length 64 [2024-10-14 03:52:22,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:22,313 INFO L471 AbstractCegarLoop]: Abstraction has 8516 states and 13091 transitions. [2024-10-14 03:52:22,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:22,315 INFO L276 IsEmpty]: Start isEmpty. Operand 8516 states and 13091 transitions. [2024-10-14 03:52:22,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 03:52:22,316 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:22,316 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] [2024-10-14 03:52:22,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:52:22,316 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:22,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:22,317 INFO L85 PathProgramCache]: Analyzing trace with hash 137939784, now seen corresponding path program 1 times [2024-10-14 03:52:22,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:22,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231670770] [2024-10-14 03:52:22,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:22,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:22,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:22,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:22,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231670770] [2024-10-14 03:52:22,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231670770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:22,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:22,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:52:22,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046652089] [2024-10-14 03:52:22,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:22,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:52:22,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:22,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:52:22,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:52:22,481 INFO L87 Difference]: Start difference. First operand 8516 states and 13091 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:22,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:22,869 INFO L93 Difference]: Finished difference Result 25480 states and 39205 transitions. [2024-10-14 03:52:22,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:52:22,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-14 03:52:22,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:22,930 INFO L225 Difference]: With dead ends: 25480 [2024-10-14 03:52:22,931 INFO L226 Difference]: Without dead ends: 16998 [2024-10-14 03:52:22,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:22,951 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 792 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:22,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 216 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:52:22,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16998 states. [2024-10-14 03:52:23,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16998 to 16996. [2024-10-14 03:52:23,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16996 states, 16995 states have (on average 1.5309796999117387) internal successors, (26019), 16995 states have internal predecessors, (26019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:23,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16996 states to 16996 states and 26019 transitions. [2024-10-14 03:52:23,405 INFO L78 Accepts]: Start accepts. Automaton has 16996 states and 26019 transitions. Word has length 66 [2024-10-14 03:52:23,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:23,406 INFO L471 AbstractCegarLoop]: Abstraction has 16996 states and 26019 transitions. [2024-10-14 03:52:23,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:23,407 INFO L276 IsEmpty]: Start isEmpty. Operand 16996 states and 26019 transitions. [2024-10-14 03:52:23,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-14 03:52:23,408 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:23,408 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:23,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:52:23,409 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:23,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:23,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1907911491, now seen corresponding path program 1 times [2024-10-14 03:52:23,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:23,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959231497] [2024-10-14 03:52:23,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:23,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:23,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:23,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:23,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959231497] [2024-10-14 03:52:23,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959231497] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:23,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:23,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:52:23,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382501566] [2024-10-14 03:52:23,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:23,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:52:23,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:23,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:52:23,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:52:23,841 INFO L87 Difference]: Start difference. First operand 16996 states and 26019 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:23,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:23,917 INFO L93 Difference]: Finished difference Result 17638 states and 26980 transitions. [2024-10-14 03:52:23,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:52:23,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-14 03:52:23,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:23,956 INFO L225 Difference]: With dead ends: 17638 [2024-10-14 03:52:23,957 INFO L226 Difference]: Without dead ends: 17636 [2024-10-14 03:52:23,967 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 [2024-10-14 03:52:23,969 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:23,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 717 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:23,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17636 states. [2024-10-14 03:52:24,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17636 to 17636. [2024-10-14 03:52:24,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17636 states, 17635 states have (on average 1.5117096682733202) internal successors, (26659), 17635 states have internal predecessors, (26659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:24,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17636 states to 17636 states and 26659 transitions. [2024-10-14 03:52:24,437 INFO L78 Accepts]: Start accepts. Automaton has 17636 states and 26659 transitions. Word has length 66 [2024-10-14 03:52:24,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:24,438 INFO L471 AbstractCegarLoop]: Abstraction has 17636 states and 26659 transitions. [2024-10-14 03:52:24,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:24,439 INFO L276 IsEmpty]: Start isEmpty. Operand 17636 states and 26659 transitions. [2024-10-14 03:52:24,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-14 03:52:24,440 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:24,440 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:24,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:52:24,441 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:24,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:24,441 INFO L85 PathProgramCache]: Analyzing trace with hash -973712832, now seen corresponding path program 1 times [2024-10-14 03:52:24,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:24,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032904517] [2024-10-14 03:52:24,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:24,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:24,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:24,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:24,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032904517] [2024-10-14 03:52:24,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032904517] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:24,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:24,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:24,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560022933] [2024-10-14 03:52:24,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:24,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:24,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:24,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:24,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:24,545 INFO L87 Difference]: Start difference. First operand 17636 states and 26659 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:24,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:24,702 INFO L93 Difference]: Finished difference Result 49160 states and 73933 transitions. [2024-10-14 03:52:24,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:24,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-10-14 03:52:24,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:24,948 INFO L225 Difference]: With dead ends: 49160 [2024-10-14 03:52:24,959 INFO L226 Difference]: Without dead ends: 31558 [2024-10-14 03:52:24,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:25,000 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 109 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:25,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 330 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:25,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31558 states. [2024-10-14 03:52:25,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31558 to 31268. [2024-10-14 03:52:25,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31268 states, 31267 states have (on average 1.4853679598298526) internal successors, (46443), 31267 states have internal predecessors, (46443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:25,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31268 states to 31268 states and 46443 transitions. [2024-10-14 03:52:25,579 INFO L78 Accepts]: Start accepts. Automaton has 31268 states and 46443 transitions. Word has length 67 [2024-10-14 03:52:25,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:25,580 INFO L471 AbstractCegarLoop]: Abstraction has 31268 states and 46443 transitions. [2024-10-14 03:52:25,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:25,580 INFO L276 IsEmpty]: Start isEmpty. Operand 31268 states and 46443 transitions. [2024-10-14 03:52:25,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-14 03:52:25,581 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:25,582 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:25,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:52:25,582 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:25,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:25,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1668961366, now seen corresponding path program 1 times [2024-10-14 03:52:25,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:25,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653882324] [2024-10-14 03:52:25,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:25,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:25,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:25,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:25,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653882324] [2024-10-14 03:52:25,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653882324] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:25,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:25,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:25,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652129344] [2024-10-14 03:52:25,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:25,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:25,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:25,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:25,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:25,649 INFO L87 Difference]: Start difference. First operand 31268 states and 46443 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:25,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:25,947 INFO L93 Difference]: Finished difference Result 62315 states and 92977 transitions. [2024-10-14 03:52:25,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:25,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-10-14 03:52:25,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:26,040 INFO L225 Difference]: With dead ends: 62315 [2024-10-14 03:52:26,041 INFO L226 Difference]: Without dead ends: 44712 [2024-10-14 03:52:26,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:26,075 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 136 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:26,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 451 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:26,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44712 states. [2024-10-14 03:52:26,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44712 to 44710. [2024-10-14 03:52:26,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44710 states, 44709 states have (on average 1.4768614820282269) internal successors, (66029), 44709 states have internal predecessors, (66029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:26,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44710 states to 44710 states and 66029 transitions. [2024-10-14 03:52:26,979 INFO L78 Accepts]: Start accepts. Automaton has 44710 states and 66029 transitions. Word has length 67 [2024-10-14 03:52:26,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:26,980 INFO L471 AbstractCegarLoop]: Abstraction has 44710 states and 66029 transitions. [2024-10-14 03:52:26,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:26,980 INFO L276 IsEmpty]: Start isEmpty. Operand 44710 states and 66029 transitions. [2024-10-14 03:52:26,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-14 03:52:26,993 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:26,993 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:26,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 03:52:26,994 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:26,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:26,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1640341038, now seen corresponding path program 1 times [2024-10-14 03:52:26,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:26,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728182092] [2024-10-14 03:52:26,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:26,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:27,356 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 03:52:27,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:27,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728182092] [2024-10-14 03:52:27,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728182092] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:27,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:27,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:52:27,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215552138] [2024-10-14 03:52:27,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:27,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:27,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:27,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:27,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:27,359 INFO L87 Difference]: Start difference. First operand 44710 states and 66029 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:27,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:27,961 INFO L93 Difference]: Finished difference Result 105938 states and 157883 transitions. [2024-10-14 03:52:27,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:52:27,962 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-10-14 03:52:27,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:28,113 INFO L225 Difference]: With dead ends: 105938 [2024-10-14 03:52:28,113 INFO L226 Difference]: Without dead ends: 86992 [2024-10-14 03:52:28,161 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 [2024-10-14 03:52:28,162 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 1188 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:28,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 1695 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:52:28,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86992 states. [2024-10-14 03:52:29,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86992 to 61974. [2024-10-14 03:52:29,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61974 states, 61973 states have (on average 1.4769819114775788) internal successors, (91533), 61973 states have internal predecessors, (91533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:29,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61974 states to 61974 states and 91533 transitions. [2024-10-14 03:52:29,309 INFO L78 Accepts]: Start accepts. Automaton has 61974 states and 91533 transitions. Word has length 93 [2024-10-14 03:52:29,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:29,310 INFO L471 AbstractCegarLoop]: Abstraction has 61974 states and 91533 transitions. [2024-10-14 03:52:29,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:29,310 INFO L276 IsEmpty]: Start isEmpty. Operand 61974 states and 91533 transitions. [2024-10-14 03:52:29,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-14 03:52:29,330 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:29,330 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:29,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 03:52:29,331 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:29,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:29,332 INFO L85 PathProgramCache]: Analyzing trace with hash 465147237, now seen corresponding path program 1 times [2024-10-14 03:52:29,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:29,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487571146] [2024-10-14 03:52:29,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:29,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:29,406 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:29,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:29,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487571146] [2024-10-14 03:52:29,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487571146] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:29,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:29,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:29,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148727805] [2024-10-14 03:52:29,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:29,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:29,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:29,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:29,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:29,410 INFO L87 Difference]: Start difference. First operand 61974 states and 91533 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:29,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:29,994 INFO L93 Difference]: Finished difference Result 137628 states and 203063 transitions. [2024-10-14 03:52:29,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:29,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-10-14 03:52:29,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:30,157 INFO L225 Difference]: With dead ends: 137628 [2024-10-14 03:52:30,157 INFO L226 Difference]: Without dead ends: 94090 [2024-10-14 03:52:30,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:30,214 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 110 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:30,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 384 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:30,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94090 states. [2024-10-14 03:52:31,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94090 to 90100. [2024-10-14 03:52:31,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90100 states, 90099 states have (on average 1.4626244464422469) internal successors, (131781), 90099 states have internal predecessors, (131781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90100 states to 90100 states and 131781 transitions. [2024-10-14 03:52:31,928 INFO L78 Accepts]: Start accepts. Automaton has 90100 states and 131781 transitions. Word has length 93 [2024-10-14 03:52:31,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:31,929 INFO L471 AbstractCegarLoop]: Abstraction has 90100 states and 131781 transitions. [2024-10-14 03:52:31,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:31,929 INFO L276 IsEmpty]: Start isEmpty. Operand 90100 states and 131781 transitions. [2024-10-14 03:52:31,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-14 03:52:31,949 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:31,950 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:31,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 03:52:31,950 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:31,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:31,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1416656418, now seen corresponding path program 1 times [2024-10-14 03:52:31,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:31,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416784605] [2024-10-14 03:52:31,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:31,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:32,029 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:32,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:32,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416784605] [2024-10-14 03:52:32,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416784605] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:32,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:32,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:32,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862999147] [2024-10-14 03:52:32,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:32,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:32,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:32,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:32,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:32,032 INFO L87 Difference]: Start difference. First operand 90100 states and 131781 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:32,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:32,964 INFO L93 Difference]: Finished difference Result 182141 states and 265640 transitions. [2024-10-14 03:52:32,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:32,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-10-14 03:52:32,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:33,190 INFO L225 Difference]: With dead ends: 182141 [2024-10-14 03:52:33,190 INFO L226 Difference]: Without dead ends: 125531 [2024-10-14 03:52:33,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:33,232 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 111 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:33,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 403 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:33,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125531 states. [2024-10-14 03:52:35,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125531 to 120073. [2024-10-14 03:52:35,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120073 states, 120072 states have (on average 1.4459157838630154) internal successors, (173614), 120072 states have internal predecessors, (173614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:35,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120073 states to 120073 states and 173614 transitions. [2024-10-14 03:52:35,403 INFO L78 Accepts]: Start accepts. Automaton has 120073 states and 173614 transitions. Word has length 93 [2024-10-14 03:52:35,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:35,404 INFO L471 AbstractCegarLoop]: Abstraction has 120073 states and 173614 transitions. [2024-10-14 03:52:35,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:35,404 INFO L276 IsEmpty]: Start isEmpty. Operand 120073 states and 173614 transitions. [2024-10-14 03:52:35,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-14 03:52:35,426 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:35,426 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:35,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 03:52:35,427 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:35,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:35,427 INFO L85 PathProgramCache]: Analyzing trace with hash -460026359, now seen corresponding path program 1 times [2024-10-14 03:52:35,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:35,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227500070] [2024-10-14 03:52:35,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:35,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:35,491 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:35,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:35,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227500070] [2024-10-14 03:52:35,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227500070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:35,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:35,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:52:35,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440565663] [2024-10-14 03:52:35,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:35,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:52:35,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:35,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:52:35,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:35,494 INFO L87 Difference]: Start difference. First operand 120073 states and 173614 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:35,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:35,879 INFO L93 Difference]: Finished difference Result 192897 states and 277718 transitions. [2024-10-14 03:52:35,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:52:35,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-10-14 03:52:35,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:36,032 INFO L225 Difference]: With dead ends: 192897 [2024-10-14 03:52:36,032 INFO L226 Difference]: Without dead ends: 125351 [2024-10-14 03:52:36,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:52:36,095 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 112 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:36,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 422 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:52:36,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125351 states. [2024-10-14 03:52:37,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125351 to 120593. [2024-10-14 03:52:37,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120593 states, 120592 states have (on average 1.427590553270532) internal successors, (172156), 120592 states have internal predecessors, (172156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:38,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120593 states to 120593 states and 172156 transitions. [2024-10-14 03:52:38,197 INFO L78 Accepts]: Start accepts. Automaton has 120593 states and 172156 transitions. Word has length 93 [2024-10-14 03:52:38,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:38,197 INFO L471 AbstractCegarLoop]: Abstraction has 120593 states and 172156 transitions. [2024-10-14 03:52:38,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:38,197 INFO L276 IsEmpty]: Start isEmpty. Operand 120593 states and 172156 transitions. [2024-10-14 03:52:38,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-14 03:52:38,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:38,215 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:38,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 03:52:38,216 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:38,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:38,216 INFO L85 PathProgramCache]: Analyzing trace with hash -2016550659, now seen corresponding path program 1 times [2024-10-14 03:52:38,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:38,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882667104] [2024-10-14 03:52:38,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:38,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 03:52:38,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:38,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882667104] [2024-10-14 03:52:38,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882667104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:38,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:38,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:52:38,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857374674] [2024-10-14 03:52:38,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:38,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:38,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:38,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:38,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:38,381 INFO L87 Difference]: Start difference. First operand 120593 states and 172156 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:39,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:39,844 INFO L93 Difference]: Finished difference Result 251010 states and 362327 transitions. [2024-10-14 03:52:39,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:52:39,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-10-14 03:52:39,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:40,235 INFO L225 Difference]: With dead ends: 251010 [2024-10-14 03:52:40,235 INFO L226 Difference]: Without dead ends: 223173 [2024-10-14 03:52:40,320 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 [2024-10-14 03:52:40,321 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 1373 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:40,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 1419 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:52:40,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223173 states. [2024-10-14 03:52:42,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223173 to 148001. [2024-10-14 03:52:42,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148001 states, 148000 states have (on average 1.428945945945946) internal successors, (211484), 148000 states have internal predecessors, (211484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:43,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148001 states to 148001 states and 211484 transitions. [2024-10-14 03:52:43,101 INFO L78 Accepts]: Start accepts. Automaton has 148001 states and 211484 transitions. Word has length 93 [2024-10-14 03:52:43,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:43,101 INFO L471 AbstractCegarLoop]: Abstraction has 148001 states and 211484 transitions. [2024-10-14 03:52:43,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:43,101 INFO L276 IsEmpty]: Start isEmpty. Operand 148001 states and 211484 transitions. [2024-10-14 03:52:43,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-14 03:52:43,123 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:43,123 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:43,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 03:52:43,124 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:43,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:43,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1147533394, now seen corresponding path program 1 times [2024-10-14 03:52:43,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:43,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843073098] [2024-10-14 03:52:43,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:43,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:43,307 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 03:52:43,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:43,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843073098] [2024-10-14 03:52:43,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843073098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:43,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:43,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:52:43,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976258316] [2024-10-14 03:52:43,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:43,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:43,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:43,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:43,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:43,309 INFO L87 Difference]: Start difference. First operand 148001 states and 211484 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) [2024-10-14 03:52:44,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:44,948 INFO L93 Difference]: Finished difference Result 260039 states and 374913 transitions. [2024-10-14 03:52:44,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:52:44,949 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 93 [2024-10-14 03:52:44,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:45,338 INFO L225 Difference]: With dead ends: 260039 [2024-10-14 03:52:45,338 INFO L226 Difference]: Without dead ends: 241477 [2024-10-14 03:52:45,402 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 [2024-10-14 03:52:45,403 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 1294 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:45,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 1459 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:52:45,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241477 states. [2024-10-14 03:52:48,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241477 to 166305. [2024-10-14 03:52:48,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166305 states, 166304 states have (on average 1.429839330382913) internal successors, (237788), 166304 states have internal predecessors, (237788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:48,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166305 states to 166305 states and 237788 transitions. [2024-10-14 03:52:48,540 INFO L78 Accepts]: Start accepts. Automaton has 166305 states and 237788 transitions. Word has length 93 [2024-10-14 03:52:48,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:48,541 INFO L471 AbstractCegarLoop]: Abstraction has 166305 states and 237788 transitions. [2024-10-14 03:52:48,541 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) [2024-10-14 03:52:48,541 INFO L276 IsEmpty]: Start isEmpty. Operand 166305 states and 237788 transitions. [2024-10-14 03:52:48,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-14 03:52:48,557 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:48,557 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:48,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 03:52:48,558 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:48,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:48,558 INFO L85 PathProgramCache]: Analyzing trace with hash -336609431, now seen corresponding path program 1 times [2024-10-14 03:52:48,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:48,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783963697] [2024-10-14 03:52:48,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:48,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:48,745 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 03:52:48,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:48,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783963697] [2024-10-14 03:52:48,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783963697] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:52:48,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:52:48,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:52:48,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238386788] [2024-10-14 03:52:48,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:52:48,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:52:48,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:48,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:52:48,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:52:48,748 INFO L87 Difference]: Start difference. First operand 166305 states and 237788 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 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) [2024-10-14 03:52:50,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:52:50,853 INFO L93 Difference]: Finished difference Result 302415 states and 436139 transitions. [2024-10-14 03:52:50,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:52:50,854 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 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 93 [2024-10-14 03:52:50,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:52:51,257 INFO L225 Difference]: With dead ends: 302415 [2024-10-14 03:52:51,257 INFO L226 Difference]: Without dead ends: 268734 [2024-10-14 03:52:51,323 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 [2024-10-14 03:52:51,323 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 1208 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:52:51,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 1574 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:52:51,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268734 states. [2024-10-14 03:52:54,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268734 to 194191. [2024-10-14 03:52:54,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194191 states, 194190 states have (on average 1.4307121890931562) internal successors, (277830), 194190 states have internal predecessors, (277830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:52:54,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194191 states to 194191 states and 277830 transitions. [2024-10-14 03:52:54,805 INFO L78 Accepts]: Start accepts. Automaton has 194191 states and 277830 transitions. Word has length 93 [2024-10-14 03:52:54,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:52:54,805 INFO L471 AbstractCegarLoop]: Abstraction has 194191 states and 277830 transitions. [2024-10-14 03:52:54,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 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) [2024-10-14 03:52:54,806 INFO L276 IsEmpty]: Start isEmpty. Operand 194191 states and 277830 transitions. [2024-10-14 03:52:54,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-14 03:52:54,823 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:52:54,823 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:52:54,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 03:52:54,824 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:52:54,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:52:54,824 INFO L85 PathProgramCache]: Analyzing trace with hash -410214538, now seen corresponding path program 1 times [2024-10-14 03:52:54,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:52:54,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104843275] [2024-10-14 03:52:54,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:54,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:52:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:56,079 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:52:56,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:52:56,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104843275] [2024-10-14 03:52:56,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104843275] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:52:56,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169769213] [2024-10-14 03:52:56,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:52:56,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:52:56,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:52:56,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:52:56,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 03:52:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:52:56,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 03:52:56,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:52:56,698 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:52:56,698 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:52:56,971 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:52:56,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169769213] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:52:56,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:52:56,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 14 [2024-10-14 03:52:56,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657202396] [2024-10-14 03:52:56,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:52:56,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 03:52:56,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:52:56,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 03:52:56,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:52:56,975 INFO L87 Difference]: Start difference. First operand 194191 states and 277830 transitions. Second operand has 14 states, 14 states have (on average 19.357142857142858) internal successors, (271), 14 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:53:05,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:53:05,740 INFO L93 Difference]: Finished difference Result 1449737 states and 2053927 transitions. [2024-10-14 03:53:05,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-10-14 03:53:05,741 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 19.357142857142858) internal successors, (271), 14 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-10-14 03:53:05,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:53:09,356 INFO L225 Difference]: With dead ends: 1449737 [2024-10-14 03:53:09,356 INFO L226 Difference]: Without dead ends: 1251586 [2024-10-14 03:53:09,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1799 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=881, Invalid=4231, Unknown=0, NotChecked=0, Total=5112 [2024-10-14 03:53:09,773 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 5624 mSDsluCounter, 3298 mSDsCounter, 0 mSdLazyCounter, 3232 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5624 SdHoareTripleChecker+Valid, 3760 SdHoareTripleChecker+Invalid, 3278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 3232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:53:09,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5624 Valid, 3760 Invalid, 3278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 3232 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-14 03:53:10,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251586 states.