./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label45.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label45.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 bad588c9542390857efe8d001f4c41a270c4260c6e96db502f4ea1506acc7b02 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 21:32:44,499 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 21:32:44,550 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 21:32:44,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 21:32:44,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 21:32:44,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 21:32:44,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 21:32:44,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 21:32:44,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 21:32:44,574 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 21:32:44,575 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 21:32:44,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 21:32:44,575 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 21:32:44,577 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 21:32:44,577 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 21:32:44,577 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 21:32:44,577 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 21:32:44,577 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 21:32:44,577 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 21:32:44,578 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 21:32:44,578 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 21:32:44,578 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 21:32:44,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 21:32:44,579 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 21:32:44,579 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 21:32:44,579 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 21:32:44,579 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 21:32:44,579 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 21:32:44,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 21:32:44,580 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 21:32:44,580 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 21:32:44,580 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 21:32:44,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:32:44,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 21:32:44,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 21:32:44,580 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 21:32:44,581 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 21:32:44,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 21:32:44,581 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 21:32:44,581 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 21:32:44,581 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 21:32:44,582 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 21:32:44,582 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bad588c9542390857efe8d001f4c41a270c4260c6e96db502f4ea1506acc7b02 [2024-10-23 21:32:44,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 21:32:44,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 21:32:44,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 21:32:44,822 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 21:32:44,822 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 21:32:44,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label45.c [2024-10-23 21:32:45,947 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 21:32:46,221 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 21:32:46,222 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label45.c [2024-10-23 21:32:46,244 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9a1a6366/92cb935614764296b89c00782dee17d6/FLAGaaf0a87e4 [2024-10-23 21:32:46,526 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9a1a6366/92cb935614764296b89c00782dee17d6 [2024-10-23 21:32:46,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 21:32:46,529 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 21:32:46,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 21:32:46,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 21:32:46,540 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 21:32:46,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:32:46" (1/1) ... [2024-10-23 21:32:46,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39f62a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:46, skipping insertion in model container [2024-10-23 21:32:46,542 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:32:46" (1/1) ... [2024-10-23 21:32:46,595 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 21:32:46,788 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/eca-rers2012/Problem17_label45.c[7434,7447] [2024-10-23 21:32:47,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:32:47,167 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 21:32:47,186 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/eca-rers2012/Problem17_label45.c[7434,7447] [2024-10-23 21:32:47,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:32:47,403 INFO L204 MainTranslator]: Completed translation [2024-10-23 21:32:47,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:47 WrapperNode [2024-10-23 21:32:47,403 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 21:32:47,404 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 21:32:47,404 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 21:32:47,404 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 21:32:47,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:47" (1/1) ... [2024-10-23 21:32:47,441 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:47" (1/1) ... [2024-10-23 21:32:47,649 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2613 [2024-10-23 21:32:47,649 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 21:32:47,650 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 21:32:47,650 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 21:32:47,650 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 21:32:47,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:47" (1/1) ... [2024-10-23 21:32:47,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:47" (1/1) ... [2024-10-23 21:32:47,701 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:47" (1/1) ... [2024-10-23 21:32:47,829 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]. [2024-10-23 21:32:47,830 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:47" (1/1) ... [2024-10-23 21:32:47,831 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:47" (1/1) ... [2024-10-23 21:32:47,914 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:47" (1/1) ... [2024-10-23 21:32:47,931 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:47" (1/1) ... [2024-10-23 21:32:47,951 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:47" (1/1) ... [2024-10-23 21:32:47,963 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:47" (1/1) ... [2024-10-23 21:32:47,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 21:32:47,996 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 21:32:47,997 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 21:32:47,997 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 21:32:47,998 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:47" (1/1) ... [2024-10-23 21:32:48,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:32:48,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:32:48,025 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) [2024-10-23 21:32:48,027 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 [2024-10-23 21:32:48,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 21:32:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 21:32:48,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 21:32:48,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 21:32:48,168 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 21:32:48,170 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 21:32:50,564 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-10-23 21:32:50,565 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 21:32:50,633 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 21:32:50,633 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-23 21:32:50,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:32:50 BoogieIcfgContainer [2024-10-23 21:32:50,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 21:32:50,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 21:32:50,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 21:32:50,637 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 21:32:50,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:32:46" (1/3) ... [2024-10-23 21:32:50,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3c5d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:32:50, skipping insertion in model container [2024-10-23 21:32:50,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:47" (2/3) ... [2024-10-23 21:32:50,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3c5d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:32:50, skipping insertion in model container [2024-10-23 21:32:50,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:32:50" (3/3) ... [2024-10-23 21:32:50,639 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label45.c [2024-10-23 21:32:50,650 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 21:32:50,651 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 21:32:50,704 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 21:32:50,710 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;@4529cd98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 21:32:50,710 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 21:32:50,715 INFO L276 IsEmpty]: Start isEmpty. Operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:50,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-23 21:32:50,722 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:50,723 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] [2024-10-23 21:32:50,723 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:50,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:50,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1483511450, now seen corresponding path program 1 times [2024-10-23 21:32:50,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:50,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936959928] [2024-10-23 21:32:50,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:50,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:50,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:32:50,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:50,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936959928] [2024-10-23 21:32:50,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936959928] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:50,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:50,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:32:50,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679474992] [2024-10-23 21:32:50,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:50,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 21:32:50,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:50,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 21:32:50,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:32:50,902 INFO L87 Difference]: Start difference. First operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 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 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:50,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:50,962 INFO L93 Difference]: Finished difference Result 1055 states and 1999 transitions. [2024-10-23 21:32:50,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 21:32:50,966 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-10-23 21:32:50,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:50,977 INFO L225 Difference]: With dead ends: 1055 [2024-10-23 21:32:50,977 INFO L226 Difference]: Without dead ends: 526 [2024-10-23 21:32:50,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:32:50,983 INFO L432 NwaCegarLoop]: 935 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:50,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 935 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 21:32:50,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-10-23 21:32:51,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2024-10-23 21:32:51,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 1.7809523809523808) internal successors, (935), 525 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:51,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 935 transitions. [2024-10-23 21:32:51,034 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 935 transitions. Word has length 49 [2024-10-23 21:32:51,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:51,034 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 935 transitions. [2024-10-23 21:32:51,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:51,034 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 935 transitions. [2024-10-23 21:32:51,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-23 21:32:51,036 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:51,036 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] [2024-10-23 21:32:51,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 21:32:51,036 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:51,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:51,037 INFO L85 PathProgramCache]: Analyzing trace with hash 175868802, now seen corresponding path program 1 times [2024-10-23 21:32:51,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:51,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262696989] [2024-10-23 21:32:51,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:51,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:51,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:32:51,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:51,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262696989] [2024-10-23 21:32:51,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262696989] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:51,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:51,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:32:51,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696164616] [2024-10-23 21:32:51,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:51,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:51,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:51,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:51,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:51,201 INFO L87 Difference]: Start difference. First operand 526 states and 935 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:52,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:52,999 INFO L93 Difference]: Finished difference Result 1499 states and 2693 transitions. [2024-10-23 21:32:52,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:52,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2024-10-23 21:32:53,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:53,005 INFO L225 Difference]: With dead ends: 1499 [2024-10-23 21:32:53,005 INFO L226 Difference]: Without dead ends: 974 [2024-10-23 21:32:53,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:53,008 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 424 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:53,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 495 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-23 21:32:53,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2024-10-23 21:32:53,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 971. [2024-10-23 21:32:53,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 970 states have (on average 1.5082474226804123) internal successors, (1463), 970 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:53,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1463 transitions. [2024-10-23 21:32:53,031 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1463 transitions. Word has length 49 [2024-10-23 21:32:53,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:53,032 INFO L471 AbstractCegarLoop]: Abstraction has 971 states and 1463 transitions. [2024-10-23 21:32:53,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:53,032 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1463 transitions. [2024-10-23 21:32:53,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-23 21:32:53,034 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:53,034 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:53,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 21:32:53,035 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:53,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:53,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1169872398, now seen corresponding path program 1 times [2024-10-23 21:32:53,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:53,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615090560] [2024-10-23 21:32:53,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:53,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:53,296 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:32:53,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:53,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615090560] [2024-10-23 21:32:53,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615090560] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:53,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:53,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:53,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858352911] [2024-10-23 21:32:53,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:53,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:53,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:53,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:53,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:53,298 INFO L87 Difference]: Start difference. First operand 971 states and 1463 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:55,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:55,145 INFO L93 Difference]: Finished difference Result 2813 states and 4241 transitions. [2024-10-23 21:32:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:55,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-10-23 21:32:55,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:55,151 INFO L225 Difference]: With dead ends: 2813 [2024-10-23 21:32:55,151 INFO L226 Difference]: Without dead ends: 1843 [2024-10-23 21:32:55,153 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 [2024-10-23 21:32:55,153 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 441 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:55,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 918 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-23 21:32:55,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2024-10-23 21:32:55,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1841. [2024-10-23 21:32:55,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1841 states, 1840 states have (on average 1.3603260869565217) internal successors, (2503), 1840 states have internal predecessors, (2503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:55,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2503 transitions. [2024-10-23 21:32:55,177 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2503 transitions. Word has length 119 [2024-10-23 21:32:55,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:55,177 INFO L471 AbstractCegarLoop]: Abstraction has 1841 states and 2503 transitions. [2024-10-23 21:32:55,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:55,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2503 transitions. [2024-10-23 21:32:55,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-23 21:32:55,184 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:55,184 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:55,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 21:32:55,184 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:55,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:55,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1188357937, now seen corresponding path program 1 times [2024-10-23 21:32:55,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:55,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083777771] [2024-10-23 21:32:55,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:55,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:55,381 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:32:55,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:55,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083777771] [2024-10-23 21:32:55,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083777771] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:55,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:55,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:32:55,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55420210] [2024-10-23 21:32:55,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:55,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:55,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:55,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:55,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:55,384 INFO L87 Difference]: Start difference. First operand 1841 states and 2503 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:57,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:57,008 INFO L93 Difference]: Finished difference Result 5394 states and 7325 transitions. [2024-10-23 21:32:57,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:57,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-10-23 21:32:57,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:57,019 INFO L225 Difference]: With dead ends: 5394 [2024-10-23 21:32:57,019 INFO L226 Difference]: Without dead ends: 2700 [2024-10-23 21:32:57,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:57,024 INFO L432 NwaCegarLoop]: 514 mSDtfsCounter, 368 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:57,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 589 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-23 21:32:57,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2024-10-23 21:32:57,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2700. [2024-10-23 21:32:57,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2700 states, 2699 states have (on average 1.1919229344201556) internal successors, (3217), 2699 states have internal predecessors, (3217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:57,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 3217 transitions. [2024-10-23 21:32:57,053 INFO L78 Accepts]: Start accepts. Automaton has 2700 states and 3217 transitions. Word has length 141 [2024-10-23 21:32:57,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:57,054 INFO L471 AbstractCegarLoop]: Abstraction has 2700 states and 3217 transitions. [2024-10-23 21:32:57,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:57,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2700 states and 3217 transitions. [2024-10-23 21:32:57,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-10-23 21:32:57,058 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:57,058 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:57,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 21:32:57,058 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:57,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:57,059 INFO L85 PathProgramCache]: Analyzing trace with hash -417324827, now seen corresponding path program 1 times [2024-10-23 21:32:57,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:57,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623627718] [2024-10-23 21:32:57,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:57,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:32:57,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:57,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623627718] [2024-10-23 21:32:57,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623627718] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:57,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:57,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:57,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630509678] [2024-10-23 21:32:57,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:57,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:57,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:57,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:57,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:57,250 INFO L87 Difference]: Start difference. First operand 2700 states and 3217 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:58,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:58,481 INFO L93 Difference]: Finished difference Result 7107 states and 8597 transitions. [2024-10-23 21:32:58,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:58,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 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 201 [2024-10-23 21:32:58,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:58,492 INFO L225 Difference]: With dead ends: 7107 [2024-10-23 21:32:58,492 INFO L226 Difference]: Without dead ends: 4408 [2024-10-23 21:32:58,494 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 [2024-10-23 21:32:58,497 INFO L432 NwaCegarLoop]: 724 mSDtfsCounter, 496 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:58,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 781 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-23 21:32:58,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4408 states. [2024-10-23 21:32:58,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4408 to 4408. [2024-10-23 21:32:58,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4408 states, 4407 states have (on average 1.1706376219650556) internal successors, (5159), 4407 states have internal predecessors, (5159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:58,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4408 states to 4408 states and 5159 transitions. [2024-10-23 21:32:58,545 INFO L78 Accepts]: Start accepts. Automaton has 4408 states and 5159 transitions. Word has length 201 [2024-10-23 21:32:58,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:58,546 INFO L471 AbstractCegarLoop]: Abstraction has 4408 states and 5159 transitions. [2024-10-23 21:32:58,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:58,547 INFO L276 IsEmpty]: Start isEmpty. Operand 4408 states and 5159 transitions. [2024-10-23 21:32:58,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-10-23 21:32:58,550 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:58,550 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:58,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-23 21:32:58,550 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:58,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:58,551 INFO L85 PathProgramCache]: Analyzing trace with hash 780862624, now seen corresponding path program 1 times [2024-10-23 21:32:58,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:58,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125971862] [2024-10-23 21:32:58,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:58,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:58,664 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-23 21:32:58,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:58,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125971862] [2024-10-23 21:32:58,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125971862] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:58,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:58,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:58,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42221789] [2024-10-23 21:32:58,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:58,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:58,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:58,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:58,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:58,666 INFO L87 Difference]: Start difference. First operand 4408 states and 5159 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:59,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:59,921 INFO L93 Difference]: Finished difference Result 10935 states and 12969 transitions. [2024-10-23 21:32:59,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:59,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 203 [2024-10-23 21:32:59,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:59,936 INFO L225 Difference]: With dead ends: 10935 [2024-10-23 21:32:59,936 INFO L226 Difference]: Without dead ends: 6527 [2024-10-23 21:32:59,940 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 [2024-10-23 21:32:59,941 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 400 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:59,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 442 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-23 21:32:59,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6527 states. [2024-10-23 21:33:00,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6527 to 4381. [2024-10-23 21:33:00,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4381 states, 4380 states have (on average 1.1684931506849314) internal successors, (5118), 4380 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:00,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4381 states to 4381 states and 5118 transitions. [2024-10-23 21:33:00,020 INFO L78 Accepts]: Start accepts. Automaton has 4381 states and 5118 transitions. Word has length 203 [2024-10-23 21:33:00,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:00,020 INFO L471 AbstractCegarLoop]: Abstraction has 4381 states and 5118 transitions. [2024-10-23 21:33:00,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:00,021 INFO L276 IsEmpty]: Start isEmpty. Operand 4381 states and 5118 transitions. [2024-10-23 21:33:00,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-10-23 21:33:00,023 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:00,023 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-23 21:33:00,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-23 21:33:00,024 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:00,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:00,024 INFO L85 PathProgramCache]: Analyzing trace with hash 442806758, now seen corresponding path program 1 times [2024-10-23 21:33:00,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:00,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186806430] [2024-10-23 21:33:00,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:00,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:00,197 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-10-23 21:33:00,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:00,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186806430] [2024-10-23 21:33:00,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186806430] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:00,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:00,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:00,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946996114] [2024-10-23 21:33:00,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:00,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:00,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:00,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:00,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:00,199 INFO L87 Difference]: Start difference. First operand 4381 states and 5118 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:01,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:01,587 INFO L93 Difference]: Finished difference Result 10044 states and 11705 transitions. [2024-10-23 21:33:01,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:01,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 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 269 [2024-10-23 21:33:01,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:01,599 INFO L225 Difference]: With dead ends: 10044 [2024-10-23 21:33:01,600 INFO L226 Difference]: Without dead ends: 5664 [2024-10-23 21:33:01,603 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 [2024-10-23 21:33:01,604 INFO L432 NwaCegarLoop]: 831 mSDtfsCounter, 386 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:01,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 891 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-23 21:33:01,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5664 states. [2024-10-23 21:33:01,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5664 to 5233. [2024-10-23 21:33:01,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 1.1588302752293578) internal successors, (6063), 5232 states have internal predecessors, (6063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:01,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 6063 transitions. [2024-10-23 21:33:01,655 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 6063 transitions. Word has length 269 [2024-10-23 21:33:01,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:01,656 INFO L471 AbstractCegarLoop]: Abstraction has 5233 states and 6063 transitions. [2024-10-23 21:33:01,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:01,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 6063 transitions. [2024-10-23 21:33:01,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-10-23 21:33:01,658 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:01,659 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:01,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-23 21:33:01,659 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:01,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:01,659 INFO L85 PathProgramCache]: Analyzing trace with hash 185442979, now seen corresponding path program 1 times [2024-10-23 21:33:01,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:01,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371335611] [2024-10-23 21:33:01,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:01,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:01,844 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-10-23 21:33:01,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:01,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371335611] [2024-10-23 21:33:01,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371335611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:01,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:01,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:01,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527659163] [2024-10-23 21:33:01,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:01,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:01,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:01,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:01,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:01,846 INFO L87 Difference]: Start difference. First operand 5233 states and 6063 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:03,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:03,131 INFO L93 Difference]: Finished difference Result 12592 states and 14782 transitions. [2024-10-23 21:33:03,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:03,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 281 [2024-10-23 21:33:03,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:03,151 INFO L225 Difference]: With dead ends: 12592 [2024-10-23 21:33:03,152 INFO L226 Difference]: Without dead ends: 6935 [2024-10-23 21:33:03,159 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 [2024-10-23 21:33:03,160 INFO L432 NwaCegarLoop]: 776 mSDtfsCounter, 383 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:03,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 844 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-23 21:33:03,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6935 states. [2024-10-23 21:33:03,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6935 to 6935. [2024-10-23 21:33:03,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6935 states, 6934 states have (on average 1.1322468993366022) internal successors, (7851), 6934 states have internal predecessors, (7851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:03,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6935 states to 6935 states and 7851 transitions. [2024-10-23 21:33:03,227 INFO L78 Accepts]: Start accepts. Automaton has 6935 states and 7851 transitions. Word has length 281 [2024-10-23 21:33:03,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:03,227 INFO L471 AbstractCegarLoop]: Abstraction has 6935 states and 7851 transitions. [2024-10-23 21:33:03,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:03,228 INFO L276 IsEmpty]: Start isEmpty. Operand 6935 states and 7851 transitions. [2024-10-23 21:33:03,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2024-10-23 21:33:03,231 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:03,231 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 21:33:03,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-23 21:33:03,231 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:03,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:03,232 INFO L85 PathProgramCache]: Analyzing trace with hash -696423162, now seen corresponding path program 1 times [2024-10-23 21:33:03,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:03,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058346263] [2024-10-23 21:33:03,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:03,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:03,351 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-10-23 21:33:03,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:03,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058346263] [2024-10-23 21:33:03,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058346263] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:03,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:03,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:03,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455841518] [2024-10-23 21:33:03,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:03,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:03,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:03,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:03,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:03,357 INFO L87 Difference]: Start difference. First operand 6935 states and 7851 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:04,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:04,781 INFO L93 Difference]: Finished difference Result 17278 states and 19682 transitions. [2024-10-23 21:33:04,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:04,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 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 321 [2024-10-23 21:33:04,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:04,794 INFO L225 Difference]: With dead ends: 17278 [2024-10-23 21:33:04,795 INFO L226 Difference]: Without dead ends: 9467 [2024-10-23 21:33:04,801 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 [2024-10-23 21:33:04,801 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 495 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:04,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 637 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-23 21:33:04,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9467 states. [2024-10-23 21:33:04,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9467 to 9037. [2024-10-23 21:33:04,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9037 states, 9036 states have (on average 1.1249446657813191) internal successors, (10165), 9036 states have internal predecessors, (10165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:04,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9037 states to 9037 states and 10165 transitions. [2024-10-23 21:33:04,886 INFO L78 Accepts]: Start accepts. Automaton has 9037 states and 10165 transitions. Word has length 321 [2024-10-23 21:33:04,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:04,886 INFO L471 AbstractCegarLoop]: Abstraction has 9037 states and 10165 transitions. [2024-10-23 21:33:04,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:04,887 INFO L276 IsEmpty]: Start isEmpty. Operand 9037 states and 10165 transitions. [2024-10-23 21:33:04,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2024-10-23 21:33:04,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:04,892 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:04,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-23 21:33:04,892 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:04,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:04,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1588137912, now seen corresponding path program 1 times [2024-10-23 21:33:04,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:04,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188758275] [2024-10-23 21:33:04,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:04,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:05,116 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:33:05,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:05,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188758275] [2024-10-23 21:33:05,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188758275] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:05,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:05,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:05,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743441319] [2024-10-23 21:33:05,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:05,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:33:05,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:05,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:33:05,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:33:05,118 INFO L87 Difference]: Start difference. First operand 9037 states and 10165 transitions. Second operand has 4 states, 4 states have (on average 97.0) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:06,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:06,977 INFO L93 Difference]: Finished difference Result 26187 states and 29346 transitions. [2024-10-23 21:33:06,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:33:06,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 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 388 [2024-10-23 21:33:06,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:06,999 INFO L225 Difference]: With dead ends: 26187 [2024-10-23 21:33:06,999 INFO L226 Difference]: Without dead ends: 16726 [2024-10-23 21:33:07,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:33:07,009 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 519 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:07,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 328 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 2403 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-23 21:33:07,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16726 states. [2024-10-23 21:33:07,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16726 to 16282. [2024-10-23 21:33:07,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16282 states, 16281 states have (on average 1.1109268472452551) internal successors, (18087), 16281 states have internal predecessors, (18087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:07,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16282 states to 16282 states and 18087 transitions. [2024-10-23 21:33:07,147 INFO L78 Accepts]: Start accepts. Automaton has 16282 states and 18087 transitions. Word has length 388 [2024-10-23 21:33:07,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:07,147 INFO L471 AbstractCegarLoop]: Abstraction has 16282 states and 18087 transitions. [2024-10-23 21:33:07,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:07,148 INFO L276 IsEmpty]: Start isEmpty. Operand 16282 states and 18087 transitions. [2024-10-23 21:33:07,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-10-23 21:33:07,153 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:07,154 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:07,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-23 21:33:07,154 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:07,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:07,155 INFO L85 PathProgramCache]: Analyzing trace with hash 652708354, now seen corresponding path program 1 times [2024-10-23 21:33:07,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:07,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806137927] [2024-10-23 21:33:07,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:07,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:07,411 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-10-23 21:33:07,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:07,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806137927] [2024-10-23 21:33:07,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806137927] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:07,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:07,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:07,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702992721] [2024-10-23 21:33:07,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:07,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:07,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:07,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:07,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:07,413 INFO L87 Difference]: Start difference. First operand 16282 states and 18087 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:08,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:08,618 INFO L93 Difference]: Finished difference Result 38972 states and 43493 transitions. [2024-10-23 21:33:08,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:08,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 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 392 [2024-10-23 21:33:08,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:08,648 INFO L225 Difference]: With dead ends: 38972 [2024-10-23 21:33:08,648 INFO L226 Difference]: Without dead ends: 22691 [2024-10-23 21:33:08,662 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 [2024-10-23 21:33:08,663 INFO L432 NwaCegarLoop]: 615 mSDtfsCounter, 349 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:08,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 651 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-23 21:33:08,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22691 states. [2024-10-23 21:33:08,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22691 to 21822. [2024-10-23 21:33:08,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21822 states, 21821 states have (on average 1.1194262407772329) internal successors, (24427), 21821 states have internal predecessors, (24427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:08,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21822 states to 21822 states and 24427 transitions. [2024-10-23 21:33:08,852 INFO L78 Accepts]: Start accepts. Automaton has 21822 states and 24427 transitions. Word has length 392 [2024-10-23 21:33:08,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:08,853 INFO L471 AbstractCegarLoop]: Abstraction has 21822 states and 24427 transitions. [2024-10-23 21:33:08,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:08,853 INFO L276 IsEmpty]: Start isEmpty. Operand 21822 states and 24427 transitions. [2024-10-23 21:33:08,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2024-10-23 21:33:08,862 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:08,863 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:08,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-23 21:33:08,863 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:08,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:08,864 INFO L85 PathProgramCache]: Analyzing trace with hash 916268364, now seen corresponding path program 1 times [2024-10-23 21:33:08,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:08,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685380588] [2024-10-23 21:33:08,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:08,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:09,259 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-10-23 21:33:09,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:09,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685380588] [2024-10-23 21:33:09,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685380588] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:09,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:09,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:09,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491715363] [2024-10-23 21:33:09,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:09,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:09,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:09,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:09,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:09,261 INFO L87 Difference]: Start difference. First operand 21822 states and 24427 transitions. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:10,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:10,515 INFO L93 Difference]: Finished difference Result 49188 states and 55549 transitions. [2024-10-23 21:33:10,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:10,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 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 435 [2024-10-23 21:33:10,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:10,548 INFO L225 Difference]: With dead ends: 49188 [2024-10-23 21:33:10,548 INFO L226 Difference]: Without dead ends: 26942 [2024-10-23 21:33:10,560 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 [2024-10-23 21:33:10,561 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 313 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:10,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 758 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-23 21:33:10,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26942 states. [2024-10-23 21:33:10,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26942 to 26935. [2024-10-23 21:33:10,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26935 states, 26934 states have (on average 1.1173980842058364) internal successors, (30096), 26934 states have internal predecessors, (30096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:10,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26935 states to 26935 states and 30096 transitions. [2024-10-23 21:33:10,835 INFO L78 Accepts]: Start accepts. Automaton has 26935 states and 30096 transitions. Word has length 435 [2024-10-23 21:33:10,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:10,836 INFO L471 AbstractCegarLoop]: Abstraction has 26935 states and 30096 transitions. [2024-10-23 21:33:10,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:10,836 INFO L276 IsEmpty]: Start isEmpty. Operand 26935 states and 30096 transitions. [2024-10-23 21:33:10,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2024-10-23 21:33:10,845 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:10,846 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:10,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-23 21:33:10,846 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:10,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:10,846 INFO L85 PathProgramCache]: Analyzing trace with hash -559862834, now seen corresponding path program 1 times [2024-10-23 21:33:10,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:10,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182939002] [2024-10-23 21:33:10,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:10,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:10,997 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 380 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-10-23 21:33:10,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:10,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182939002] [2024-10-23 21:33:10,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182939002] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:10,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:10,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:10,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257372780] [2024-10-23 21:33:10,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:10,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:10,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:11,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:11,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:11,000 INFO L87 Difference]: Start difference. First operand 26935 states and 30096 transitions. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:12,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:12,290 INFO L93 Difference]: Finished difference Result 64093 states and 71470 transitions. [2024-10-23 21:33:12,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:12,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 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 448 [2024-10-23 21:33:12,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:12,325 INFO L225 Difference]: With dead ends: 64093 [2024-10-23 21:33:12,325 INFO L226 Difference]: Without dead ends: 37159 [2024-10-23 21:33:12,333 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 [2024-10-23 21:33:12,334 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 351 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:12,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 151 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-23 21:33:12,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37159 states. [2024-10-23 21:33:12,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37159 to 29045. [2024-10-23 21:33:12,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29045 states, 29044 states have (on average 1.1157554055915164) internal successors, (32406), 29044 states have internal predecessors, (32406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:12,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29045 states to 29045 states and 32406 transitions. [2024-10-23 21:33:12,585 INFO L78 Accepts]: Start accepts. Automaton has 29045 states and 32406 transitions. Word has length 448 [2024-10-23 21:33:12,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:12,586 INFO L471 AbstractCegarLoop]: Abstraction has 29045 states and 32406 transitions. [2024-10-23 21:33:12,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:12,586 INFO L276 IsEmpty]: Start isEmpty. Operand 29045 states and 32406 transitions. [2024-10-23 21:33:12,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2024-10-23 21:33:12,599 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:12,599 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:12,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-23 21:33:12,600 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:12,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:12,600 INFO L85 PathProgramCache]: Analyzing trace with hash 357772367, now seen corresponding path program 1 times [2024-10-23 21:33:12,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:12,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351625663] [2024-10-23 21:33:12,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:12,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:12,899 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-10-23 21:33:12,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:12,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351625663] [2024-10-23 21:33:12,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351625663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:12,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:12,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:12,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065606382] [2024-10-23 21:33:12,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:12,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:12,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:12,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:12,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:12,902 INFO L87 Difference]: Start difference. First operand 29045 states and 32406 transitions. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:14,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:14,140 INFO L93 Difference]: Finished difference Result 67033 states and 74965 transitions. [2024-10-23 21:33:14,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:14,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 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 512 [2024-10-23 21:33:14,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:14,183 INFO L225 Difference]: With dead ends: 67033 [2024-10-23 21:33:14,184 INFO L226 Difference]: Without dead ends: 37989 [2024-10-23 21:33:14,205 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 [2024-10-23 21:33:14,206 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 325 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:14,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 342 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-23 21:33:14,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37989 states. [2024-10-23 21:33:14,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37989 to 33300. [2024-10-23 21:33:14,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33300 states, 33299 states have (on average 1.1001231268206253) internal successors, (36633), 33299 states have internal predecessors, (36633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:14,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33300 states to 33300 states and 36633 transitions. [2024-10-23 21:33:14,474 INFO L78 Accepts]: Start accepts. Automaton has 33300 states and 36633 transitions. Word has length 512 [2024-10-23 21:33:14,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:14,474 INFO L471 AbstractCegarLoop]: Abstraction has 33300 states and 36633 transitions. [2024-10-23 21:33:14,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:14,475 INFO L276 IsEmpty]: Start isEmpty. Operand 33300 states and 36633 transitions. [2024-10-23 21:33:14,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2024-10-23 21:33:14,486 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:14,486 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:14,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-23 21:33:14,487 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:14,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:14,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1071305290, now seen corresponding path program 1 times [2024-10-23 21:33:14,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:14,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320679171] [2024-10-23 21:33:14,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:14,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:14,851 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 610 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-10-23 21:33:14,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:14,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320679171] [2024-10-23 21:33:14,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320679171] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:14,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:14,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:14,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618371668] [2024-10-23 21:33:14,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:14,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:14,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:14,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:14,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:14,852 INFO L87 Difference]: Start difference. First operand 33300 states and 36633 transitions. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:16,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:16,099 INFO L93 Difference]: Finished difference Result 75545 states and 83065 transitions. [2024-10-23 21:33:16,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:16,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 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 566 [2024-10-23 21:33:16,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:16,139 INFO L225 Difference]: With dead ends: 75545 [2024-10-23 21:33:16,139 INFO L226 Difference]: Without dead ends: 42246 [2024-10-23 21:33:16,161 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 [2024-10-23 21:33:16,161 INFO L432 NwaCegarLoop]: 730 mSDtfsCounter, 246 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:16,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 780 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-23 21:33:16,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42246 states. [2024-10-23 21:33:16,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42246 to 40535. [2024-10-23 21:33:16,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40535 states, 40534 states have (on average 1.0932550451472838) internal successors, (44314), 40534 states have internal predecessors, (44314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:16,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40535 states to 40535 states and 44314 transitions. [2024-10-23 21:33:16,646 INFO L78 Accepts]: Start accepts. Automaton has 40535 states and 44314 transitions. Word has length 566 [2024-10-23 21:33:16,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:16,647 INFO L471 AbstractCegarLoop]: Abstraction has 40535 states and 44314 transitions. [2024-10-23 21:33:16,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:16,647 INFO L276 IsEmpty]: Start isEmpty. Operand 40535 states and 44314 transitions. [2024-10-23 21:33:16,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2024-10-23 21:33:16,667 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:16,668 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:16,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-23 21:33:16,668 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:16,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:16,669 INFO L85 PathProgramCache]: Analyzing trace with hash -24456938, now seen corresponding path program 1 times [2024-10-23 21:33:16,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:16,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045666258] [2024-10-23 21:33:16,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:16,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:17,041 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-10-23 21:33:17,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:17,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045666258] [2024-10-23 21:33:17,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045666258] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:17,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:17,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:17,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748985654] [2024-10-23 21:33:17,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:17,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:17,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:17,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:17,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:17,043 INFO L87 Difference]: Start difference. First operand 40535 states and 44314 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:18,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:18,286 INFO L93 Difference]: Finished difference Result 92570 states and 101578 transitions. [2024-10-23 21:33:18,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:18,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 597 [2024-10-23 21:33:18,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:18,333 INFO L225 Difference]: With dead ends: 92570 [2024-10-23 21:33:18,333 INFO L226 Difference]: Without dead ends: 51185 [2024-10-23 21:33:18,357 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 [2024-10-23 21:33:18,358 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 312 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:18,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 614 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-23 21:33:18,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51185 states. [2024-10-23 21:33:18,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51185 to 51174. [2024-10-23 21:33:18,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51174 states, 51173 states have (on average 1.093701756785805) internal successors, (55968), 51173 states have internal predecessors, (55968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:18,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51174 states to 51174 states and 55968 transitions. [2024-10-23 21:33:18,765 INFO L78 Accepts]: Start accepts. Automaton has 51174 states and 55968 transitions. Word has length 597 [2024-10-23 21:33:18,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:18,765 INFO L471 AbstractCegarLoop]: Abstraction has 51174 states and 55968 transitions. [2024-10-23 21:33:18,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:18,766 INFO L276 IsEmpty]: Start isEmpty. Operand 51174 states and 55968 transitions. [2024-10-23 21:33:18,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2024-10-23 21:33:18,783 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:18,783 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:18,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-23 21:33:18,783 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:18,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:18,784 INFO L85 PathProgramCache]: Analyzing trace with hash -830920075, now seen corresponding path program 1 times [2024-10-23 21:33:18,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:18,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917422719] [2024-10-23 21:33:18,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:18,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:18,978 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 518 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2024-10-23 21:33:18,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:18,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917422719] [2024-10-23 21:33:18,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917422719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:18,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:18,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:18,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89825207] [2024-10-23 21:33:18,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:18,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:18,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:18,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:18,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:18,980 INFO L87 Difference]: Start difference. First operand 51174 states and 55968 transitions. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:20,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:20,256 INFO L93 Difference]: Finished difference Result 106180 states and 116204 transitions. [2024-10-23 21:33:20,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:20,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 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 664 [2024-10-23 21:33:20,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:20,312 INFO L225 Difference]: With dead ends: 106180 [2024-10-23 21:33:20,312 INFO L226 Difference]: Without dead ends: 55007 [2024-10-23 21:33:20,344 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 [2024-10-23 21:33:20,344 INFO L432 NwaCegarLoop]: 644 mSDtfsCounter, 486 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:20,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 685 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-23 21:33:20,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55007 states. [2024-10-23 21:33:20,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55007 to 54998. [2024-10-23 21:33:20,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54998 states, 54997 states have (on average 1.0856410349655436) internal successors, (59707), 54997 states have internal predecessors, (59707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:20,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54998 states to 54998 states and 59707 transitions. [2024-10-23 21:33:20,756 INFO L78 Accepts]: Start accepts. Automaton has 54998 states and 59707 transitions. Word has length 664 [2024-10-23 21:33:20,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:20,756 INFO L471 AbstractCegarLoop]: Abstraction has 54998 states and 59707 transitions. [2024-10-23 21:33:20,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:20,756 INFO L276 IsEmpty]: Start isEmpty. Operand 54998 states and 59707 transitions. [2024-10-23 21:33:20,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2024-10-23 21:33:20,773 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:20,773 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:20,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-23 21:33:20,773 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:20,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:20,774 INFO L85 PathProgramCache]: Analyzing trace with hash -483958308, now seen corresponding path program 1 times [2024-10-23 21:33:20,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:20,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980836463] [2024-10-23 21:33:20,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:20,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:21,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 914 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-10-23 21:33:21,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:21,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980836463] [2024-10-23 21:33:21,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980836463] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:21,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:21,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 21:33:21,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078839734] [2024-10-23 21:33:21,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:21,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:33:21,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:21,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:33:21,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:33:21,574 INFO L87 Difference]: Start difference. First operand 54998 states and 59707 transitions. Second operand has 4 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:23,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:23,645 INFO L93 Difference]: Finished difference Result 127463 states and 138321 transitions. [2024-10-23 21:33:23,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:33:23,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 0 states have call successors, (0), 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 676 [2024-10-23 21:33:23,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:23,727 INFO L225 Difference]: With dead ends: 127463 [2024-10-23 21:33:23,727 INFO L226 Difference]: Without dead ends: 72466 [2024-10-23 21:33:23,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:33:23,770 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 813 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 2638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 2272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:23,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 177 Invalid, 2638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 2272 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-23 21:33:23,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72466 states. [2024-10-23 21:33:24,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72466 to 70327. [2024-10-23 21:33:24,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70327 states, 70326 states have (on average 1.084122515143759) internal successors, (76242), 70326 states have internal predecessors, (76242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:24,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70327 states to 70327 states and 76242 transitions. [2024-10-23 21:33:24,599 INFO L78 Accepts]: Start accepts. Automaton has 70327 states and 76242 transitions. Word has length 676 [2024-10-23 21:33:24,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:24,600 INFO L471 AbstractCegarLoop]: Abstraction has 70327 states and 76242 transitions. [2024-10-23 21:33:24,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.75) internal successors, (475), 4 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:24,600 INFO L276 IsEmpty]: Start isEmpty. Operand 70327 states and 76242 transitions. [2024-10-23 21:33:24,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2024-10-23 21:33:24,647 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:24,647 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:24,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-23 21:33:24,647 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:24,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:24,648 INFO L85 PathProgramCache]: Analyzing trace with hash -850445266, now seen corresponding path program 1 times [2024-10-23 21:33:24,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:24,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052717705] [2024-10-23 21:33:24,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:24,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:25,191 INFO L134 CoverageAnalysis]: Checked inductivity of 1226 backedges. 893 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-10-23 21:33:25,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:25,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052717705] [2024-10-23 21:33:25,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052717705] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:25,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:25,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:25,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626065028] [2024-10-23 21:33:25,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:25,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:25,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:25,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:25,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:25,193 INFO L87 Difference]: Start difference. First operand 70327 states and 76242 transitions. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:26,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:26,512 INFO L93 Difference]: Finished difference Result 152576 states and 165680 transitions. [2024-10-23 21:33:26,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:26,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 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 695 [2024-10-23 21:33:26,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:26,718 INFO L225 Difference]: With dead ends: 152576 [2024-10-23 21:33:26,718 INFO L226 Difference]: Without dead ends: 82250 [2024-10-23 21:33:26,738 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 [2024-10-23 21:33:26,738 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 382 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:26,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 296 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-23 21:33:26,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82250 states. [2024-10-23 21:33:27,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82250 to 80539. [2024-10-23 21:33:27,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80539 states, 80538 states have (on average 1.0796270083687203) internal successors, (86951), 80538 states have internal predecessors, (86951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:27,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80539 states to 80539 states and 86951 transitions. [2024-10-23 21:33:27,471 INFO L78 Accepts]: Start accepts. Automaton has 80539 states and 86951 transitions. Word has length 695 [2024-10-23 21:33:27,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:27,471 INFO L471 AbstractCegarLoop]: Abstraction has 80539 states and 86951 transitions. [2024-10-23 21:33:27,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:27,471 INFO L276 IsEmpty]: Start isEmpty. Operand 80539 states and 86951 transitions. [2024-10-23 21:33:27,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 749 [2024-10-23 21:33:27,666 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:27,666 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:27,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-23 21:33:27,667 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:27,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:27,667 INFO L85 PathProgramCache]: Analyzing trace with hash 685530063, now seen corresponding path program 1 times [2024-10-23 21:33:27,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:27,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056970891] [2024-10-23 21:33:27,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:27,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:28,272 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-10-23 21:33:28,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:28,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056970891] [2024-10-23 21:33:28,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056970891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:28,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:28,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:28,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055138291] [2024-10-23 21:33:28,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:28,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:28,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:28,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:28,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:28,274 INFO L87 Difference]: Start difference. First operand 80539 states and 86951 transitions. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:29,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:29,746 INFO L93 Difference]: Finished difference Result 159793 states and 172447 transitions. [2024-10-23 21:33:29,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:29,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 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 748 [2024-10-23 21:33:29,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:29,829 INFO L225 Difference]: With dead ends: 159793 [2024-10-23 21:33:29,829 INFO L226 Difference]: Without dead ends: 79253 [2024-10-23 21:33:29,869 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 [2024-10-23 21:33:29,870 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 335 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:29,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 680 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-23 21:33:29,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79253 states. [2024-10-23 21:33:30,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79253 to 77976. [2024-10-23 21:33:30,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77976 states, 77975 states have (on average 1.0655594741904457) internal successors, (83087), 77975 states have internal predecessors, (83087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:30,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77976 states to 77976 states and 83087 transitions. [2024-10-23 21:33:30,788 INFO L78 Accepts]: Start accepts. Automaton has 77976 states and 83087 transitions. Word has length 748 [2024-10-23 21:33:30,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:30,789 INFO L471 AbstractCegarLoop]: Abstraction has 77976 states and 83087 transitions. [2024-10-23 21:33:30,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:30,789 INFO L276 IsEmpty]: Start isEmpty. Operand 77976 states and 83087 transitions. [2024-10-23 21:33:30,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 758 [2024-10-23 21:33:30,825 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:30,825 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-23 21:33:30,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-23 21:33:30,826 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:30,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:30,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1986212403, now seen corresponding path program 1 times [2024-10-23 21:33:30,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:30,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603612740] [2024-10-23 21:33:30,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:30,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:31,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 757 proven. 82 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2024-10-23 21:33:31,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:31,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603612740] [2024-10-23 21:33:31,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603612740] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:33:31,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778004822] [2024-10-23 21:33:31,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:31,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:33:31,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:33:31,571 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) [2024-10-23 21:33:31,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-23 21:33:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:31,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-23 21:33:31,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:33:32,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 885 proven. 160 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-10-23 21:33:32,259 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-23 21:33:32,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 1045 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-10-23 21:33:32,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778004822] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-23 21:33:32,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-23 21:33:32,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 4] total 7 [2024-10-23 21:33:32,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920025357] [2024-10-23 21:33:32,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:32,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-23 21:33:32,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:32,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-23 21:33:32,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-10-23 21:33:32,640 INFO L87 Difference]: Start difference. First operand 77976 states and 83087 transitions. Second operand has 5 states, 5 states have (on average 111.2) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:35,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:35,356 INFO L93 Difference]: Finished difference Result 187927 states and 200825 transitions. [2024-10-23 21:33:35,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-23 21:33:35,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 111.2) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 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 757 [2024-10-23 21:33:35,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:35,468 INFO L225 Difference]: With dead ends: 187927 [2024-10-23 21:33:35,468 INFO L226 Difference]: Without dead ends: 109527 [2024-10-23 21:33:35,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1515 GetRequests, 1509 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-10-23 21:33:35,514 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 1426 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 2671 mSolverCounterSat, 785 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 3456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 785 IncrementalHoareTripleChecker+Valid, 2671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:35,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1426 Valid, 179 Invalid, 3456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [785 Valid, 2671 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-23 21:33:35,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109527 states. [2024-10-23 21:33:36,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109527 to 102718. [2024-10-23 21:33:36,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102718 states, 102717 states have (on average 1.066512845974863) internal successors, (109549), 102717 states have internal predecessors, (109549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:36,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102718 states to 102718 states and 109549 transitions. [2024-10-23 21:33:36,812 INFO L78 Accepts]: Start accepts. Automaton has 102718 states and 109549 transitions. Word has length 757 [2024-10-23 21:33:36,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:36,813 INFO L471 AbstractCegarLoop]: Abstraction has 102718 states and 109549 transitions. [2024-10-23 21:33:36,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.2) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:36,813 INFO L276 IsEmpty]: Start isEmpty. Operand 102718 states and 109549 transitions. [2024-10-23 21:33:36,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 784 [2024-10-23 21:33:36,854 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:36,854 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 21:33:36,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-23 21:33:37,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-23 21:33:37,056 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:37,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:37,056 INFO L85 PathProgramCache]: Analyzing trace with hash -799424268, now seen corresponding path program 1 times [2024-10-23 21:33:37,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:37,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917116543] [2024-10-23 21:33:37,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:37,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:37,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1441 backedges. 1088 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2024-10-23 21:33:37,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:37,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917116543] [2024-10-23 21:33:37,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917116543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:37,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:37,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:37,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107249982] [2024-10-23 21:33:37,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:37,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:37,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:37,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:37,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:37,853 INFO L87 Difference]: Start difference. First operand 102718 states and 109549 transitions. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:39,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:39,572 INFO L93 Difference]: Finished difference Result 218682 states and 233272 transitions. [2024-10-23 21:33:39,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:39,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 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 783 [2024-10-23 21:33:39,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:39,691 INFO L225 Difference]: With dead ends: 218682 [2024-10-23 21:33:39,691 INFO L226 Difference]: Without dead ends: 115965 [2024-10-23 21:33:39,741 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 [2024-10-23 21:33:39,745 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 269 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:39,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 251 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-23 21:33:39,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115965 states. [2024-10-23 21:33:40,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115965 to 106984. [2024-10-23 21:33:41,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106984 states, 106983 states have (on average 1.0664685043418114) internal successors, (114094), 106983 states have internal predecessors, (114094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:41,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106984 states to 106984 states and 114094 transitions. [2024-10-23 21:33:41,162 INFO L78 Accepts]: Start accepts. Automaton has 106984 states and 114094 transitions. Word has length 783 [2024-10-23 21:33:41,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:41,163 INFO L471 AbstractCegarLoop]: Abstraction has 106984 states and 114094 transitions. [2024-10-23 21:33:41,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:41,163 INFO L276 IsEmpty]: Start isEmpty. Operand 106984 states and 114094 transitions. [2024-10-23 21:33:41,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2024-10-23 21:33:41,205 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:41,205 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 21:33:41,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-23 21:33:41,205 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:41,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:41,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1836039521, now seen corresponding path program 1 times [2024-10-23 21:33:41,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:41,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491689415] [2024-10-23 21:33:41,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:41,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:41,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 1209 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-10-23 21:33:41,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:41,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491689415] [2024-10-23 21:33:41,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491689415] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:41,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:41,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:41,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562291105] [2024-10-23 21:33:41,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:41,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:41,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:41,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:41,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:41,913 INFO L87 Difference]: Start difference. First operand 106984 states and 114094 transitions. Second operand has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:43,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:43,381 INFO L93 Difference]: Finished difference Result 222078 states and 236719 transitions. [2024-10-23 21:33:43,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:43,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 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 801 [2024-10-23 21:33:43,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:43,511 INFO L225 Difference]: With dead ends: 222078 [2024-10-23 21:33:43,511 INFO L226 Difference]: Without dead ends: 115095 [2024-10-23 21:33:43,582 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 [2024-10-23 21:33:43,582 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 429 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:43,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 219 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-23 21:33:43,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115095 states. [2024-10-23 21:33:44,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115095 to 107838. [2024-10-23 21:33:44,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107838 states, 107837 states have (on average 1.064773686211597) internal successors, (114822), 107837 states have internal predecessors, (114822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:44,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107838 states to 107838 states and 114822 transitions. [2024-10-23 21:33:44,927 INFO L78 Accepts]: Start accepts. Automaton has 107838 states and 114822 transitions. Word has length 801 [2024-10-23 21:33:44,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:44,927 INFO L471 AbstractCegarLoop]: Abstraction has 107838 states and 114822 transitions. [2024-10-23 21:33:44,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:44,928 INFO L276 IsEmpty]: Start isEmpty. Operand 107838 states and 114822 transitions. [2024-10-23 21:33:44,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 810 [2024-10-23 21:33:44,955 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:44,956 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:44,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-23 21:33:44,956 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:44,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:44,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1345958079, now seen corresponding path program 1 times [2024-10-23 21:33:44,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:44,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602453012] [2024-10-23 21:33:44,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:44,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:45,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1662 backedges. 1152 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2024-10-23 21:33:45,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:45,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602453012] [2024-10-23 21:33:45,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602453012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:45,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:45,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:45,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824612950] [2024-10-23 21:33:45,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:45,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:45,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:45,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:45,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:45,652 INFO L87 Difference]: Start difference. First operand 107838 states and 114822 transitions. Second operand has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:47,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:47,422 INFO L93 Difference]: Finished difference Result 221646 states and 235884 transitions. [2024-10-23 21:33:47,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:47,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 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 809 [2024-10-23 21:33:47,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:47,540 INFO L225 Difference]: With dead ends: 221646 [2024-10-23 21:33:47,540 INFO L226 Difference]: Without dead ends: 113809 [2024-10-23 21:33:47,565 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 [2024-10-23 21:33:47,566 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 319 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:47,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 264 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-23 21:33:47,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113809 states. [2024-10-23 21:33:48,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113809 to 106988. [2024-10-23 21:33:48,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106988 states, 106987 states have (on average 1.064278837615785) internal successors, (113864), 106987 states have internal predecessors, (113864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:48,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106988 states to 106988 states and 113864 transitions. [2024-10-23 21:33:48,757 INFO L78 Accepts]: Start accepts. Automaton has 106988 states and 113864 transitions. Word has length 809 [2024-10-23 21:33:48,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:48,758 INFO L471 AbstractCegarLoop]: Abstraction has 106988 states and 113864 transitions. [2024-10-23 21:33:48,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:48,758 INFO L276 IsEmpty]: Start isEmpty. Operand 106988 states and 113864 transitions. [2024-10-23 21:33:48,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 857 [2024-10-23 21:33:48,788 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:48,788 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:48,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-23 21:33:48,789 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:48,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:48,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1612714546, now seen corresponding path program 1 times [2024-10-23 21:33:48,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:48,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829974955] [2024-10-23 21:33:48,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:48,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:49,510 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2024-10-23 21:33:49,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:49,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829974955] [2024-10-23 21:33:49,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829974955] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:49,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:49,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:33:49,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694156898] [2024-10-23 21:33:49,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:49,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:49,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:49,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:49,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:49,512 INFO L87 Difference]: Start difference. First operand 106988 states and 113864 transitions. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:50,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:50,873 INFO L93 Difference]: Finished difference Result 111676 states and 118717 transitions. [2024-10-23 21:33:50,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:50,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 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 856 [2024-10-23 21:33:50,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:50,988 INFO L225 Difference]: With dead ends: 111676 [2024-10-23 21:33:50,988 INFO L226 Difference]: Without dead ends: 111249 [2024-10-23 21:33:51,012 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 [2024-10-23 21:33:51,012 INFO L432 NwaCegarLoop]: 683 mSDtfsCounter, 412 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:51,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 737 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-23 21:33:51,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111249 states. [2024-10-23 21:33:52,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111249 to 106988. [2024-10-23 21:33:52,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106988 states, 106987 states have (on average 1.0642040621757785) internal successors, (113856), 106987 states have internal predecessors, (113856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:52,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106988 states to 106988 states and 113856 transitions. [2024-10-23 21:33:52,324 INFO L78 Accepts]: Start accepts. Automaton has 106988 states and 113856 transitions. Word has length 856 [2024-10-23 21:33:52,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:52,324 INFO L471 AbstractCegarLoop]: Abstraction has 106988 states and 113856 transitions. [2024-10-23 21:33:52,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:52,324 INFO L276 IsEmpty]: Start isEmpty. Operand 106988 states and 113856 transitions. [2024-10-23 21:33:52,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 860 [2024-10-23 21:33:52,354 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:52,354 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:52,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-23 21:33:52,355 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:52,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:52,355 INFO L85 PathProgramCache]: Analyzing trace with hash 21017650, now seen corresponding path program 1 times [2024-10-23 21:33:52,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:52,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603554457] [2024-10-23 21:33:52,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:52,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:53,223 INFO L134 CoverageAnalysis]: Checked inductivity of 843 backedges. 598 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-10-23 21:33:53,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:53,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603554457] [2024-10-23 21:33:53,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603554457] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:53,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:53,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 21:33:53,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863108573] [2024-10-23 21:33:53,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:53,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:33:53,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:53,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:33:53,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:33:53,225 INFO L87 Difference]: Start difference. First operand 106988 states and 113856 transitions. Second operand has 4 states, 4 states have (on average 174.25) internal successors, (697), 4 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:55,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:55,423 INFO L93 Difference]: Finished difference Result 235694 states and 250426 transitions. [2024-10-23 21:33:55,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:33:55,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 174.25) internal successors, (697), 4 states have internal predecessors, (697), 0 states have call successors, (0), 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 859 [2024-10-23 21:33:55,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:55,563 INFO L225 Difference]: With dead ends: 235694 [2024-10-23 21:33:55,564 INFO L226 Difference]: Without dead ends: 126582 [2024-10-23 21:33:55,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:33:55,628 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 662 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 2313 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 2634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 2313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:55,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 165 Invalid, 2634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 2313 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-23 21:33:55,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126582 states. [2024-10-23 21:33:57,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126582 to 114213. [2024-10-23 21:33:57,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114213 states, 114212 states have (on average 1.0636010226596155) internal successors, (121476), 114212 states have internal predecessors, (121476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:57,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114213 states to 114213 states and 121476 transitions. [2024-10-23 21:33:57,247 INFO L78 Accepts]: Start accepts. Automaton has 114213 states and 121476 transitions. Word has length 859 [2024-10-23 21:33:57,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:57,247 INFO L471 AbstractCegarLoop]: Abstraction has 114213 states and 121476 transitions. [2024-10-23 21:33:57,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 174.25) internal successors, (697), 4 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:57,248 INFO L276 IsEmpty]: Start isEmpty. Operand 114213 states and 121476 transitions. [2024-10-23 21:33:57,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 919 [2024-10-23 21:33:57,682 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:57,682 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:57,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-23 21:33:57,682 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:57,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:57,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1243354714, now seen corresponding path program 1 times [2024-10-23 21:33:57,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:57,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505140408] [2024-10-23 21:33:57,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:57,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:58,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1926 backedges. 1137 proven. 0 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2024-10-23 21:33:58,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:58,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505140408] [2024-10-23 21:33:58,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505140408] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:58,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:58,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:33:58,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371495874] [2024-10-23 21:33:58,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:58,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:33:58,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:58,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:33:58,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:58,035 INFO L87 Difference]: Start difference. First operand 114213 states and 121476 transitions. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 2 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:59,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:59,119 INFO L93 Difference]: Finished difference Result 221177 states and 235357 transitions. [2024-10-23 21:33:59,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:33:59,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 2 states have internal predecessors, (427), 0 states have call successors, (0), 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 918 [2024-10-23 21:33:59,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:59,228 INFO L225 Difference]: With dead ends: 221177 [2024-10-23 21:33:59,228 INFO L226 Difference]: Without dead ends: 106963 [2024-10-23 21:33:59,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:33:59,263 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 499 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:59,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 83 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 21:33:59,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106963 states. [2024-10-23 21:34:00,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106963 to 106532. [2024-10-23 21:34:00,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106532 states, 106531 states have (on average 1.0644882710197032) internal successors, (113401), 106531 states have internal predecessors, (113401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:34:00,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106532 states to 106532 states and 113401 transitions. [2024-10-23 21:34:00,310 INFO L78 Accepts]: Start accepts. Automaton has 106532 states and 113401 transitions. Word has length 918 [2024-10-23 21:34:00,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:34:00,310 INFO L471 AbstractCegarLoop]: Abstraction has 106532 states and 113401 transitions. [2024-10-23 21:34:00,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 2 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:34:00,311 INFO L276 IsEmpty]: Start isEmpty. Operand 106532 states and 113401 transitions. [2024-10-23 21:34:00,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 919 [2024-10-23 21:34:00,351 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:34:00,351 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:34:00,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-23 21:34:00,351 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:34:00,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:34:00,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1852823516, now seen corresponding path program 1 times [2024-10-23 21:34:00,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:34:00,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316893760] [2024-10-23 21:34:00,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:34:00,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:34:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat