./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.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 35835b17b59c5e920a3c43e288f4480e266a5c0d81ffb01d5e91066f0ee7062a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 23:58:10,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 23:58:11,011 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 23:58:11,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 23:58:11,020 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 23:58:11,045 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 23:58:11,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 23:58:11,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 23:58:11,046 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 23:58:11,046 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 23:58:11,047 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 23:58:11,047 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 23:58:11,049 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 23:58:11,049 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 23:58:11,049 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 23:58:11,051 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 23:58:11,052 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 23:58:11,052 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 23:58:11,052 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 23:58:11,053 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 23:58:11,053 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 23:58:11,053 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 23:58:11,054 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 23:58:11,054 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 23:58:11,054 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 23:58:11,055 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 23:58:11,055 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 23:58:11,055 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 23:58:11,056 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 23:58:11,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 23:58:11,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 23:58:11,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 23:58:11,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:58:11,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 23:58:11,057 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 23:58:11,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 23:58:11,058 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 23:58:11,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 23:58:11,058 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 23:58:11,059 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 23:58:11,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 23:58:11,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 23:58:11,060 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35835b17b59c5e920a3c43e288f4480e266a5c0d81ffb01d5e91066f0ee7062a [2024-11-19 23:58:11,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 23:58:11,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 23:58:11,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 23:58:11,358 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 23:58:11,360 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 23:58:11,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-19 23:58:12,812 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 23:58:13,312 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 23:58:13,313 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-19 23:58:13,357 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b1b2be15/21c913f9279c41319acc238e33e10232/FLAGb4486687c [2024-11-19 23:58:13,373 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b1b2be15/21c913f9279c41319acc238e33e10232 [2024-11-19 23:58:13,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 23:58:13,378 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 23:58:13,379 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 23:58:13,379 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 23:58:13,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 23:58:13,385 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:58:13" (1/1) ... [2024-11-19 23:58:13,386 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@582157c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:58:13, skipping insertion in model container [2024-11-19 23:58:13,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:58:13" (1/1) ... [2024-11-19 23:58:13,528 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 23:58:13,956 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c[15510,15523] [2024-11-19 23:58:14,015 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c[22571,22584] [2024-11-19 23:58:14,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:58:14,599 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 23:58:14,630 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c[15510,15523] [2024-11-19 23:58:14,639 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c[22571,22584] [2024-11-19 23:58:15,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:58:15,064 INFO L204 MainTranslator]: Completed translation [2024-11-19 23:58:15,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:58:15 WrapperNode [2024-11-19 23:58:15,066 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 23:58:15,067 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 23:58:15,067 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 23:58:15,067 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 23:58:15,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:58:15" (1/1) ... [2024-11-19 23:58:15,138 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:58:15" (1/1) ... [2024-11-19 23:58:15,563 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5157 [2024-11-19 23:58:15,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 23:58:15,564 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 23:58:15,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 23:58:15,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 23:58:15,576 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:58:15" (1/1) ... [2024-11-19 23:58:15,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:58:15" (1/1) ... [2024-11-19 23:58:15,651 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:58:15" (1/1) ... [2024-11-19 23:58:15,796 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]. [2024-11-19 23:58:15,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:58:15" (1/1) ... [2024-11-19 23:58:15,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:58:15" (1/1) ... [2024-11-19 23:58:15,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:58:15" (1/1) ... [2024-11-19 23:58:15,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:58:15" (1/1) ... [2024-11-19 23:58:15,996 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:58:15" (1/1) ... [2024-11-19 23:58:16,023 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:58:15" (1/1) ... [2024-11-19 23:58:16,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 23:58:16,083 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 23:58:16,083 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 23:58:16,084 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 23:58:16,084 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:58:15" (1/1) ... [2024-11-19 23:58:16,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:58:16,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:58:16,118 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) [2024-11-19 23:58:16,123 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 [2024-11-19 23:58:16,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 23:58:16,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 23:58:16,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 23:58:16,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 23:58:16,267 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 23:58:16,270 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 23:58:20,496 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-19 23:58:20,497 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 23:58:20,541 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 23:58:20,541 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 23:58:20,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:58:20 BoogieIcfgContainer [2024-11-19 23:58:20,542 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 23:58:20,544 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 23:58:20,545 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 23:58:20,548 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 23:58:20,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:58:13" (1/3) ... [2024-11-19 23:58:20,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@972f06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:58:20, skipping insertion in model container [2024-11-19 23:58:20,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:58:15" (2/3) ... [2024-11-19 23:58:20,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@972f06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:58:20, skipping insertion in model container [2024-11-19 23:58:20,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:58:20" (3/3) ... [2024-11-19 23:58:20,552 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label04.c [2024-11-19 23:58:20,573 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 23:58:20,574 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 23:58:20,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 23:58:20,675 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;@3f13da76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 23:58:20,675 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 23:58:20,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 916 states, 913 states have (on average 1.9036144578313252) internal successors, (1738), 915 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:20,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-19 23:58:20,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:20,697 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] [2024-11-19 23:58:20,698 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:20,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:20,704 INFO L85 PathProgramCache]: Analyzing trace with hash -2028897015, now seen corresponding path program 1 times [2024-11-19 23:58:20,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:20,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100217538] [2024-11-19 23:58:20,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:20,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:20,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:21,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:21,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:21,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100217538] [2024-11-19 23:58:21,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100217538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:21,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:21,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 23:58:21,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940104161] [2024-11-19 23:58:21,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:21,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 23:58:21,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:21,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 23:58:21,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 23:58:21,077 INFO L87 Difference]: Start difference. First operand has 916 states, 913 states have (on average 1.9036144578313252) internal successors, (1738), 915 states have internal predecessors, (1738), 0 states have call successors, (0), 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 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:21,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:21,159 INFO L93 Difference]: Finished difference Result 1784 states and 3386 transitions. [2024-11-19 23:58:21,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 23:58:21,163 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2024-11-19 23:58:21,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:21,188 INFO L225 Difference]: With dead ends: 1784 [2024-11-19 23:58:21,189 INFO L226 Difference]: Without dead ends: 850 [2024-11-19 23:58:21,194 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 [2024-11-19 23:58:21,197 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:21,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:58:21,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-19 23:58:21,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 850. [2024-11-19 23:58:21,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 848 states have (on average 1.892688679245283) internal successors, (1605), 849 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:21,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1605 transitions. [2024-11-19 23:58:21,290 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1605 transitions. Word has length 26 [2024-11-19 23:58:21,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:21,290 INFO L471 AbstractCegarLoop]: Abstraction has 850 states and 1605 transitions. [2024-11-19 23:58:21,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:21,291 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1605 transitions. [2024-11-19 23:58:21,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-19 23:58:21,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:21,293 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] [2024-11-19 23:58:21,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 23:58:21,294 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:21,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:21,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1448421831, now seen corresponding path program 1 times [2024-11-19 23:58:21,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:21,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907104628] [2024-11-19 23:58:21,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:21,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:21,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:21,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:21,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907104628] [2024-11-19 23:58:21,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907104628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:21,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:21,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 23:58:21,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80234322] [2024-11-19 23:58:21,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:21,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 23:58:21,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:21,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 23:58:21,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 23:58:21,578 INFO L87 Difference]: Start difference. First operand 850 states and 1605 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:21,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:21,706 INFO L93 Difference]: Finished difference Result 904 states and 1689 transitions. [2024-11-19 23:58:21,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 23:58:21,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2024-11-19 23:58:21,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:21,713 INFO L225 Difference]: With dead ends: 904 [2024-11-19 23:58:21,713 INFO L226 Difference]: Without dead ends: 850 [2024-11-19 23:58:21,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 23:58:21,715 INFO L432 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4764 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6367 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:21,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6367 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 23:58:21,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-19 23:58:21,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 850. [2024-11-19 23:58:21,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 848 states have (on average 1.8455188679245282) internal successors, (1565), 849 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:21,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1565 transitions. [2024-11-19 23:58:21,743 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1565 transitions. Word has length 26 [2024-11-19 23:58:21,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:21,743 INFO L471 AbstractCegarLoop]: Abstraction has 850 states and 1565 transitions. [2024-11-19 23:58:21,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:21,744 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1565 transitions. [2024-11-19 23:58:21,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-19 23:58:21,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:21,748 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:58:21,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 23:58:21,748 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:21,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:21,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1623121127, now seen corresponding path program 1 times [2024-11-19 23:58:21,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:21,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126059773] [2024-11-19 23:58:21,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:21,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:21,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:21,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:21,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126059773] [2024-11-19 23:58:21,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126059773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:21,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:21,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 23:58:21,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696513535] [2024-11-19 23:58:21,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:21,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:58:21,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:21,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:58:21,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:58:21,925 INFO L87 Difference]: Start difference. First operand 850 states and 1565 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:25,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:25,548 INFO L93 Difference]: Finished difference Result 2354 states and 4438 transitions. [2024-11-19 23:58:25,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:58:25,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2024-11-19 23:58:25,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:25,556 INFO L225 Difference]: With dead ends: 2354 [2024-11-19 23:58:25,556 INFO L226 Difference]: Without dead ends: 1601 [2024-11-19 23:58:25,557 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 [2024-11-19 23:58:25,559 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 866 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:25,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 601 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-19 23:58:25,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2024-11-19 23:58:25,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1601. [2024-11-19 23:58:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1601 states, 1599 states have (on average 1.5909943714821764) internal successors, (2544), 1600 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:25,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1601 states to 1601 states and 2544 transitions. [2024-11-19 23:58:25,594 INFO L78 Accepts]: Start accepts. Automaton has 1601 states and 2544 transitions. Word has length 61 [2024-11-19 23:58:25,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:25,594 INFO L471 AbstractCegarLoop]: Abstraction has 1601 states and 2544 transitions. [2024-11-19 23:58:25,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:25,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1601 states and 2544 transitions. [2024-11-19 23:58:25,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-19 23:58:25,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:25,596 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:58:25,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 23:58:25,596 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:25,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:25,597 INFO L85 PathProgramCache]: Analyzing trace with hash -295358701, now seen corresponding path program 1 times [2024-11-19 23:58:25,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:25,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2865589] [2024-11-19 23:58:25,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:25,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:25,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:25,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:25,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2865589] [2024-11-19 23:58:25,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2865589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:25,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:25,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 23:58:25,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534788055] [2024-11-19 23:58:25,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:25,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 23:58:25,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:25,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 23:58:25,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:58:25,836 INFO L87 Difference]: Start difference. First operand 1601 states and 2544 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:26,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:26,131 INFO L93 Difference]: Finished difference Result 2201 states and 3504 transitions. [2024-11-19 23:58:26,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 23:58:26,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-19 23:58:26,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:26,140 INFO L225 Difference]: With dead ends: 2201 [2024-11-19 23:58:26,141 INFO L226 Difference]: Without dead ends: 2151 [2024-11-19 23:58:26,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-19 23:58:26,143 INFO L432 NwaCegarLoop]: 1559 mSDtfsCounter, 9855 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9855 SdHoareTripleChecker+Valid, 3085 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:26,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9855 Valid, 3085 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 23:58:26,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2151 states. [2024-11-19 23:58:26,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2151 to 1649. [2024-11-19 23:58:26,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1647 states have (on average 1.5913782635094111) internal successors, (2621), 1648 states have internal predecessors, (2621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:26,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2621 transitions. [2024-11-19 23:58:26,182 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2621 transitions. Word has length 65 [2024-11-19 23:58:26,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:26,182 INFO L471 AbstractCegarLoop]: Abstraction has 1649 states and 2621 transitions. [2024-11-19 23:58:26,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:26,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2621 transitions. [2024-11-19 23:58:26,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-19 23:58:26,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:26,185 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:58:26,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 23:58:26,185 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:26,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:26,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1787564125, now seen corresponding path program 1 times [2024-11-19 23:58:26,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:26,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146286589] [2024-11-19 23:58:26,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:26,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:26,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:26,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:26,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146286589] [2024-11-19 23:58:26,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146286589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:26,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:26,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:58:26,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925732474] [2024-11-19 23:58:26,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:26,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:58:26,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:26,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:58:26,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:58:26,331 INFO L87 Difference]: Start difference. First operand 1649 states and 2621 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:26,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:26,374 INFO L93 Difference]: Finished difference Result 1834 states and 2916 transitions. [2024-11-19 23:58:26,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:58:26,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-19 23:58:26,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:26,382 INFO L225 Difference]: With dead ends: 1834 [2024-11-19 23:58:26,382 INFO L226 Difference]: Without dead ends: 1736 [2024-11-19 23:58:26,384 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 [2024-11-19 23:58:26,385 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 1492 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:26,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1634 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:58:26,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-11-19 23:58:26,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1732. [2024-11-19 23:58:26,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1730 states have (on average 1.5901734104046243) internal successors, (2751), 1731 states have internal predecessors, (2751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:26,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2751 transitions. [2024-11-19 23:58:26,425 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2751 transitions. Word has length 67 [2024-11-19 23:58:26,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:26,425 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 2751 transitions. [2024-11-19 23:58:26,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:26,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2751 transitions. [2024-11-19 23:58:26,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-19 23:58:26,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:26,428 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:58:26,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 23:58:26,428 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:26,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:26,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1721070613, now seen corresponding path program 1 times [2024-11-19 23:58:26,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:26,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223317907] [2024-11-19 23:58:26,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:26,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:26,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:26,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:26,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223317907] [2024-11-19 23:58:26,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223317907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:26,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:26,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 23:58:26,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152120663] [2024-11-19 23:58:26,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:26,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 23:58:26,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:26,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 23:58:26,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:58:26,790 INFO L87 Difference]: Start difference. First operand 1732 states and 2751 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:27,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:27,045 INFO L93 Difference]: Finished difference Result 1915 states and 3039 transitions. [2024-11-19 23:58:27,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 23:58:27,046 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-19 23:58:27,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:27,056 INFO L225 Difference]: With dead ends: 1915 [2024-11-19 23:58:27,056 INFO L226 Difference]: Without dead ends: 1734 [2024-11-19 23:58:27,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-19 23:58:27,060 INFO L432 NwaCegarLoop]: 1557 mSDtfsCounter, 6020 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6020 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:27,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6020 Valid, 1940 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 23:58:27,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2024-11-19 23:58:27,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1732. [2024-11-19 23:58:27,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1730 states have (on average 1.5890173410404624) internal successors, (2749), 1731 states have internal predecessors, (2749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:27,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2749 transitions. [2024-11-19 23:58:27,124 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2749 transitions. Word has length 67 [2024-11-19 23:58:27,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:27,125 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 2749 transitions. [2024-11-19 23:58:27,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:27,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2749 transitions. [2024-11-19 23:58:27,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 23:58:27,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:27,126 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:58:27,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 23:58:27,126 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:27,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:27,127 INFO L85 PathProgramCache]: Analyzing trace with hash 2066662853, now seen corresponding path program 1 times [2024-11-19 23:58:27,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:27,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957213142] [2024-11-19 23:58:27,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:27,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:27,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:27,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:27,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957213142] [2024-11-19 23:58:27,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957213142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:27,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:27,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 23:58:27,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414440890] [2024-11-19 23:58:27,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:27,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 23:58:27,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:27,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 23:58:27,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 23:58:27,438 INFO L87 Difference]: Start difference. First operand 1732 states and 2749 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:27,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:27,484 INFO L93 Difference]: Finished difference Result 1740 states and 2758 transitions. [2024-11-19 23:58:27,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 23:58:27,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-19 23:58:27,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:27,493 INFO L225 Difference]: With dead ends: 1740 [2024-11-19 23:58:27,494 INFO L226 Difference]: Without dead ends: 1738 [2024-11-19 23:58:27,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 23:58:27,497 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 0 mSDsluCounter, 4677 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6239 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:27,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6239 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:58:27,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2024-11-19 23:58:27,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2024-11-19 23:58:27,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1738 states, 1736 states have (on average 1.586405529953917) internal successors, (2754), 1737 states have internal predecessors, (2754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:27,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2754 transitions. [2024-11-19 23:58:27,532 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2754 transitions. Word has length 68 [2024-11-19 23:58:27,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:27,532 INFO L471 AbstractCegarLoop]: Abstraction has 1738 states and 2754 transitions. [2024-11-19 23:58:27,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:27,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2754 transitions. [2024-11-19 23:58:27,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-19 23:58:27,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:27,534 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:58:27,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 23:58:27,534 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:27,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:27,535 INFO L85 PathProgramCache]: Analyzing trace with hash 279342091, now seen corresponding path program 1 times [2024-11-19 23:58:27,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:27,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806993805] [2024-11-19 23:58:27,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:27,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:27,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:27,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:27,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806993805] [2024-11-19 23:58:27,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806993805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:27,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:27,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:58:27,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888208077] [2024-11-19 23:58:27,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:27,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:58:27,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:27,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:58:27,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:58:27,673 INFO L87 Difference]: Start difference. First operand 1738 states and 2754 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:27,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:27,701 INFO L93 Difference]: Finished difference Result 2096 states and 3306 transitions. [2024-11-19 23:58:27,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:58:27,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-19 23:58:27,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:27,709 INFO L225 Difference]: With dead ends: 2096 [2024-11-19 23:58:27,709 INFO L226 Difference]: Without dead ends: 1909 [2024-11-19 23:58:27,710 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 [2024-11-19 23:58:27,711 INFO L432 NwaCegarLoop]: 1612 mSDtfsCounter, 1505 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:27,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1701 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:58:27,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1909 states. [2024-11-19 23:58:27,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1909 to 1907. [2024-11-19 23:58:27,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1905 states have (on average 1.5805774278215223) internal successors, (3011), 1906 states have internal predecessors, (3011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:27,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 3011 transitions. [2024-11-19 23:58:27,753 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 3011 transitions. Word has length 69 [2024-11-19 23:58:27,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:27,753 INFO L471 AbstractCegarLoop]: Abstraction has 1907 states and 3011 transitions. [2024-11-19 23:58:27,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:27,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 3011 transitions. [2024-11-19 23:58:27,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-19 23:58:27,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:27,756 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:58:27,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 23:58:27,757 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:27,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:27,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1517604107, now seen corresponding path program 1 times [2024-11-19 23:58:27,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:27,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364882807] [2024-11-19 23:58:27,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:27,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:27,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:27,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:27,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364882807] [2024-11-19 23:58:27,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364882807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:27,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:27,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:58:27,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318761728] [2024-11-19 23:58:27,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:27,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:58:27,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:27,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:58:27,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:58:27,822 INFO L87 Difference]: Start difference. First operand 1907 states and 3011 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:27,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:27,855 INFO L93 Difference]: Finished difference Result 2587 states and 4049 transitions. [2024-11-19 23:58:27,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:58:27,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-19 23:58:27,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:27,863 INFO L225 Difference]: With dead ends: 2587 [2024-11-19 23:58:27,864 INFO L226 Difference]: Without dead ends: 2231 [2024-11-19 23:58:27,865 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 [2024-11-19 23:58:27,867 INFO L432 NwaCegarLoop]: 1610 mSDtfsCounter, 1503 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:27,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1703 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:58:27,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2024-11-19 23:58:27,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2229. [2024-11-19 23:58:27,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2229 states, 2227 states have (on average 1.5684777727885046) internal successors, (3493), 2228 states have internal predecessors, (3493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:27,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 3493 transitions. [2024-11-19 23:58:27,920 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 3493 transitions. Word has length 69 [2024-11-19 23:58:27,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:27,921 INFO L471 AbstractCegarLoop]: Abstraction has 2229 states and 3493 transitions. [2024-11-19 23:58:27,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:27,921 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 3493 transitions. [2024-11-19 23:58:27,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-19 23:58:27,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:27,922 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:58:27,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 23:58:27,922 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:27,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:27,923 INFO L85 PathProgramCache]: Analyzing trace with hash -697864693, now seen corresponding path program 1 times [2024-11-19 23:58:27,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:27,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757218685] [2024-11-19 23:58:27,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:27,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:27,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:27,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757218685] [2024-11-19 23:58:27,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757218685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:27,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:27,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:58:27,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409042080] [2024-11-19 23:58:27,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:27,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:58:27,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:27,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:58:27,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:58:27,990 INFO L87 Difference]: Start difference. First operand 2229 states and 3493 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:28,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:28,030 INFO L93 Difference]: Finished difference Result 3521 states and 5439 transitions. [2024-11-19 23:58:28,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:58:28,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-19 23:58:28,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:28,040 INFO L225 Difference]: With dead ends: 3521 [2024-11-19 23:58:28,040 INFO L226 Difference]: Without dead ends: 2843 [2024-11-19 23:58:28,042 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 [2024-11-19 23:58:28,043 INFO L432 NwaCegarLoop]: 1608 mSDtfsCounter, 1501 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:28,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 1705 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:58:28,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2024-11-19 23:58:28,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2841. [2024-11-19 23:58:28,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2839 states have (on average 1.5473758365621697) internal successors, (4393), 2840 states have internal predecessors, (4393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:28,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 4393 transitions. [2024-11-19 23:58:28,116 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 4393 transitions. Word has length 69 [2024-11-19 23:58:28,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:28,116 INFO L471 AbstractCegarLoop]: Abstraction has 2841 states and 4393 transitions. [2024-11-19 23:58:28,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:28,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 4393 transitions. [2024-11-19 23:58:28,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-19 23:58:28,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:28,118 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:58:28,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 23:58:28,118 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:28,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:28,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1083068171, now seen corresponding path program 1 times [2024-11-19 23:58:28,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:28,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039728039] [2024-11-19 23:58:28,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:28,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:28,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:28,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:28,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039728039] [2024-11-19 23:58:28,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039728039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:28,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:28,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:58:28,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195662960] [2024-11-19 23:58:28,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:28,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:58:28,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:28,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:58:28,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:58:28,177 INFO L87 Difference]: Start difference. First operand 2841 states and 4393 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:28,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:28,240 INFO L93 Difference]: Finished difference Result 5293 states and 8027 transitions. [2024-11-19 23:58:28,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:58:28,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-19 23:58:28,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:28,256 INFO L225 Difference]: With dead ends: 5293 [2024-11-19 23:58:28,256 INFO L226 Difference]: Without dead ends: 4003 [2024-11-19 23:58:28,259 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 [2024-11-19 23:58:28,260 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 1499 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:28,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:58:28,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4003 states. [2024-11-19 23:58:28,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4003 to 4001. [2024-11-19 23:58:28,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4001 states, 3999 states have (on average 1.5166291572893222) internal successors, (6065), 4000 states have internal predecessors, (6065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:28,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4001 states to 4001 states and 6065 transitions. [2024-11-19 23:58:28,358 INFO L78 Accepts]: Start accepts. Automaton has 4001 states and 6065 transitions. Word has length 69 [2024-11-19 23:58:28,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:28,358 INFO L471 AbstractCegarLoop]: Abstraction has 4001 states and 6065 transitions. [2024-11-19 23:58:28,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:28,359 INFO L276 IsEmpty]: Start isEmpty. Operand 4001 states and 6065 transitions. [2024-11-19 23:58:28,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-19 23:58:28,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:28,360 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:58:28,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 23:58:28,360 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:28,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:28,360 INFO L85 PathProgramCache]: Analyzing trace with hash 15485707, now seen corresponding path program 1 times [2024-11-19 23:58:28,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:28,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884831753] [2024-11-19 23:58:28,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:28,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:28,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:28,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:28,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884831753] [2024-11-19 23:58:28,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884831753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:28,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:28,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:58:28,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160037170] [2024-11-19 23:58:28,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:28,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:58:28,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:28,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:58:28,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:58:28,423 INFO L87 Difference]: Start difference. First operand 4001 states and 6065 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:28,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:28,510 INFO L93 Difference]: Finished difference Result 8645 states and 12819 transitions. [2024-11-19 23:58:28,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:58:28,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-19 23:58:28,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:28,550 INFO L225 Difference]: With dead ends: 8645 [2024-11-19 23:58:28,550 INFO L226 Difference]: Without dead ends: 6195 [2024-11-19 23:58:28,559 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 [2024-11-19 23:58:28,560 INFO L432 NwaCegarLoop]: 1622 mSDtfsCounter, 1507 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:28,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:58:28,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6195 states. [2024-11-19 23:58:28,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6195 to 6193. [2024-11-19 23:58:28,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6193 states, 6191 states have (on average 1.478436439993539) internal successors, (9153), 6192 states have internal predecessors, (9153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:28,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6193 states to 6193 states and 9153 transitions. [2024-11-19 23:58:28,716 INFO L78 Accepts]: Start accepts. Automaton has 6193 states and 9153 transitions. Word has length 69 [2024-11-19 23:58:28,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:28,716 INFO L471 AbstractCegarLoop]: Abstraction has 6193 states and 9153 transitions. [2024-11-19 23:58:28,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:28,717 INFO L276 IsEmpty]: Start isEmpty. Operand 6193 states and 9153 transitions. [2024-11-19 23:58:28,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-19 23:58:28,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:28,718 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:58:28,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 23:58:28,718 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:28,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:28,719 INFO L85 PathProgramCache]: Analyzing trace with hash -2036636858, now seen corresponding path program 1 times [2024-11-19 23:58:28,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:28,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294661058] [2024-11-19 23:58:28,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:28,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:28,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:28,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:28,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294661058] [2024-11-19 23:58:28,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294661058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:28,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:28,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:58:28,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221929283] [2024-11-19 23:58:28,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:28,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:58:28,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:28,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:58:28,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:58:28,831 INFO L87 Difference]: Start difference. First operand 6193 states and 9153 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:28,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:28,978 INFO L93 Difference]: Finished difference Result 11064 states and 16263 transitions. [2024-11-19 23:58:28,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:58:28,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-19 23:58:28,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:28,998 INFO L225 Difference]: With dead ends: 11064 [2024-11-19 23:58:28,998 INFO L226 Difference]: Without dead ends: 8437 [2024-11-19 23:58:29,005 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 [2024-11-19 23:58:29,007 INFO L432 NwaCegarLoop]: 1627 mSDtfsCounter, 1506 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:29,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:58:29,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8437 states. [2024-11-19 23:58:29,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8437 to 8435. [2024-11-19 23:58:29,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8435 states, 8433 states have (on average 1.4612830546661923) internal successors, (12323), 8434 states have internal predecessors, (12323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:29,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8435 states to 8435 states and 12323 transitions. [2024-11-19 23:58:29,272 INFO L78 Accepts]: Start accepts. Automaton has 8435 states and 12323 transitions. Word has length 71 [2024-11-19 23:58:29,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:29,273 INFO L471 AbstractCegarLoop]: Abstraction has 8435 states and 12323 transitions. [2024-11-19 23:58:29,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:29,273 INFO L276 IsEmpty]: Start isEmpty. Operand 8435 states and 12323 transitions. [2024-11-19 23:58:29,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-19 23:58:29,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:29,276 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 23:58:29,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 23:58:29,277 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:29,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:29,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1790597010, now seen corresponding path program 1 times [2024-11-19 23:58:29,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:29,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124014578] [2024-11-19 23:58:29,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:29,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:29,519 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 23:58:29,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:29,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124014578] [2024-11-19 23:58:29,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124014578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:29,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:29,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 23:58:29,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756227442] [2024-11-19 23:58:29,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:29,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 23:58:29,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:29,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 23:58:29,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:58:29,521 INFO L87 Difference]: Start difference. First operand 8435 states and 12323 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:30,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:30,437 INFO L93 Difference]: Finished difference Result 51169 states and 73450 transitions. [2024-11-19 23:58:30,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 23:58:30,438 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-19 23:58:30,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:30,526 INFO L225 Difference]: With dead ends: 51169 [2024-11-19 23:58:30,526 INFO L226 Difference]: Without dead ends: 44287 [2024-11-19 23:58:30,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-19 23:58:30,544 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 8109 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8109 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:30,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8109 Valid, 3868 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 23:58:30,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44287 states. [2024-11-19 23:58:31,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44287 to 15315. [2024-11-19 23:58:31,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15315 states, 15313 states have (on average 1.442108012799582) internal successors, (22083), 15314 states have internal predecessors, (22083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:31,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15315 states to 15315 states and 22083 transitions. [2024-11-19 23:58:31,215 INFO L78 Accepts]: Start accepts. Automaton has 15315 states and 22083 transitions. Word has length 90 [2024-11-19 23:58:31,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:31,216 INFO L471 AbstractCegarLoop]: Abstraction has 15315 states and 22083 transitions. [2024-11-19 23:58:31,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:31,216 INFO L276 IsEmpty]: Start isEmpty. Operand 15315 states and 22083 transitions. [2024-11-19 23:58:31,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-19 23:58:31,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:31,222 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 23:58:31,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 23:58:31,225 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:31,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:31,226 INFO L85 PathProgramCache]: Analyzing trace with hash -552334994, now seen corresponding path program 1 times [2024-11-19 23:58:31,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:31,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762944383] [2024-11-19 23:58:31,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:31,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:31,421 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 23:58:31,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:31,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762944383] [2024-11-19 23:58:31,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762944383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:31,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:31,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 23:58:31,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310181713] [2024-11-19 23:58:31,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:31,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 23:58:31,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:31,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 23:58:31,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:58:31,424 INFO L87 Difference]: Start difference. First operand 15315 states and 22083 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:32,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:32,350 INFO L93 Difference]: Finished difference Result 58049 states and 83210 transitions. [2024-11-19 23:58:32,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 23:58:32,351 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-19 23:58:32,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:32,448 INFO L225 Difference]: With dead ends: 58049 [2024-11-19 23:58:32,449 INFO L226 Difference]: Without dead ends: 51167 [2024-11-19 23:58:32,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-19 23:58:32,477 INFO L432 NwaCegarLoop]: 1639 mSDtfsCounter, 8154 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8154 SdHoareTripleChecker+Valid, 3817 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:32,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8154 Valid, 3817 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 23:58:32,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51167 states. [2024-11-19 23:58:33,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51167 to 25651. [2024-11-19 23:58:33,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25651 states, 25649 states have (on average 1.428632695231783) internal successors, (36643), 25650 states have internal predecessors, (36643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:33,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25651 states to 25651 states and 36643 transitions. [2024-11-19 23:58:33,289 INFO L78 Accepts]: Start accepts. Automaton has 25651 states and 36643 transitions. Word has length 90 [2024-11-19 23:58:33,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:33,290 INFO L471 AbstractCegarLoop]: Abstraction has 25651 states and 36643 transitions. [2024-11-19 23:58:33,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:33,290 INFO L276 IsEmpty]: Start isEmpty. Operand 25651 states and 36643 transitions. [2024-11-19 23:58:33,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-19 23:58:33,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:33,297 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 23:58:33,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 23:58:33,297 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:33,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:33,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1527163502, now seen corresponding path program 1 times [2024-11-19 23:58:33,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:33,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536647940] [2024-11-19 23:58:33,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:33,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:33,482 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-19 23:58:33,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:33,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536647940] [2024-11-19 23:58:33,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536647940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:33,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:33,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 23:58:33,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270483307] [2024-11-19 23:58:33,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:33,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 23:58:33,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:33,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 23:58:33,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:58:33,484 INFO L87 Difference]: Start difference. First operand 25651 states and 36643 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:34,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:34,591 INFO L93 Difference]: Finished difference Result 64929 states and 92970 transitions. [2024-11-19 23:58:34,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 23:58:34,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-19 23:58:34,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:34,694 INFO L225 Difference]: With dead ends: 64929 [2024-11-19 23:58:34,695 INFO L226 Difference]: Without dead ends: 58047 [2024-11-19 23:58:34,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-19 23:58:34,721 INFO L432 NwaCegarLoop]: 1636 mSDtfsCounter, 8208 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8208 SdHoareTripleChecker+Valid, 3797 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:34,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8208 Valid, 3797 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 23:58:34,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58047 states. [2024-11-19 23:58:35,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58047 to 32531. [2024-11-19 23:58:35,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32531 states, 32529 states have (on average 1.426511727996557) internal successors, (46403), 32530 states have internal predecessors, (46403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:35,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32531 states to 32531 states and 46403 transitions. [2024-11-19 23:58:35,743 INFO L78 Accepts]: Start accepts. Automaton has 32531 states and 46403 transitions. Word has length 90 [2024-11-19 23:58:35,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:35,744 INFO L471 AbstractCegarLoop]: Abstraction has 32531 states and 46403 transitions. [2024-11-19 23:58:35,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:35,744 INFO L276 IsEmpty]: Start isEmpty. Operand 32531 states and 46403 transitions. [2024-11-19 23:58:35,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-19 23:58:35,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:35,748 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 23:58:35,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 23:58:35,748 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:35,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:35,749 INFO L85 PathProgramCache]: Analyzing trace with hash -986870930, now seen corresponding path program 1 times [2024-11-19 23:58:35,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:35,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245226268] [2024-11-19 23:58:35,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:35,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:35,932 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 23:58:35,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:35,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245226268] [2024-11-19 23:58:35,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245226268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:35,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:35,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 23:58:35,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977431203] [2024-11-19 23:58:35,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:35,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 23:58:35,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:35,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 23:58:35,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:58:35,935 INFO L87 Difference]: Start difference. First operand 32531 states and 46403 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:37,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:37,059 INFO L93 Difference]: Finished difference Result 71809 states and 102730 transitions. [2024-11-19 23:58:37,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 23:58:37,060 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-19 23:58:37,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:37,169 INFO L225 Difference]: With dead ends: 71809 [2024-11-19 23:58:37,170 INFO L226 Difference]: Without dead ends: 64927 [2024-11-19 23:58:37,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-19 23:58:37,201 INFO L432 NwaCegarLoop]: 1641 mSDtfsCounter, 8112 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8112 SdHoareTripleChecker+Valid, 3888 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:37,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8112 Valid, 3888 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 23:58:37,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64927 states. [2024-11-19 23:58:38,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64927 to 39411. [2024-11-19 23:58:38,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39411 states, 39409 states have (on average 1.4251313151818112) internal successors, (56163), 39410 states have internal predecessors, (56163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:38,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39411 states to 39411 states and 56163 transitions. [2024-11-19 23:58:38,491 INFO L78 Accepts]: Start accepts. Automaton has 39411 states and 56163 transitions. Word has length 90 [2024-11-19 23:58:38,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:38,492 INFO L471 AbstractCegarLoop]: Abstraction has 39411 states and 56163 transitions. [2024-11-19 23:58:38,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:38,492 INFO L276 IsEmpty]: Start isEmpty. Operand 39411 states and 56163 transitions. [2024-11-19 23:58:38,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-19 23:58:38,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:38,498 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 23:58:38,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 23:58:38,498 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:38,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:38,499 INFO L85 PathProgramCache]: Analyzing trace with hash -2054453394, now seen corresponding path program 1 times [2024-11-19 23:58:38,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:38,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225593929] [2024-11-19 23:58:38,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:38,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:38,909 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 23:58:38,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:38,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225593929] [2024-11-19 23:58:38,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225593929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:38,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:38,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 23:58:38,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557224419] [2024-11-19 23:58:38,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:38,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 23:58:38,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:38,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 23:58:38,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:58:38,912 INFO L87 Difference]: Start difference. First operand 39411 states and 56163 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:40,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:40,361 INFO L93 Difference]: Finished difference Result 78689 states and 112490 transitions. [2024-11-19 23:58:40,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 23:58:40,362 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-19 23:58:40,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:40,466 INFO L225 Difference]: With dead ends: 78689 [2024-11-19 23:58:40,466 INFO L226 Difference]: Without dead ends: 71807 [2024-11-19 23:58:40,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-19 23:58:40,490 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 8044 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8044 SdHoareTripleChecker+Valid, 4067 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:40,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8044 Valid, 4067 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 23:58:40,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71807 states. [2024-11-19 23:58:41,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71807 to 46291. [2024-11-19 23:58:41,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46291 states, 46289 states have (on average 1.4241612478126553) internal successors, (65923), 46290 states have internal predecessors, (65923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:41,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46291 states to 46291 states and 65923 transitions. [2024-11-19 23:58:41,793 INFO L78 Accepts]: Start accepts. Automaton has 46291 states and 65923 transitions. Word has length 90 [2024-11-19 23:58:41,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:41,793 INFO L471 AbstractCegarLoop]: Abstraction has 46291 states and 65923 transitions. [2024-11-19 23:58:41,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:41,794 INFO L276 IsEmpty]: Start isEmpty. Operand 46291 states and 65923 transitions. [2024-11-19 23:58:41,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-19 23:58:41,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:41,800 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 23:58:41,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 23:58:41,800 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:41,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:41,928 INFO L85 PathProgramCache]: Analyzing trace with hash 168958598, now seen corresponding path program 1 times [2024-11-19 23:58:41,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:41,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13698012] [2024-11-19 23:58:41,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:41,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:42,103 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:42,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:42,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13698012] [2024-11-19 23:58:42,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13698012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:42,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:42,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:58:42,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337678630] [2024-11-19 23:58:42,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:42,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:58:42,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:42,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:58:42,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:58:42,106 INFO L87 Difference]: Start difference. First operand 46291 states and 65923 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:43,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:43,156 INFO L93 Difference]: Finished difference Result 77933 states and 111292 transitions. [2024-11-19 23:58:43,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:58:43,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-19 23:58:43,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:43,202 INFO L225 Difference]: With dead ends: 77933 [2024-11-19 23:58:43,202 INFO L226 Difference]: Without dead ends: 33195 [2024-11-19 23:58:43,232 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 [2024-11-19 23:58:43,233 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 58 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:43,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3163 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:58:43,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33195 states. [2024-11-19 23:58:43,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33195 to 33193. [2024-11-19 23:58:43,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33193 states, 33191 states have (on average 1.4286101654062848) internal successors, (47417), 33192 states have internal predecessors, (47417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:44,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33193 states to 33193 states and 47417 transitions. [2024-11-19 23:58:44,020 INFO L78 Accepts]: Start accepts. Automaton has 33193 states and 47417 transitions. Word has length 92 [2024-11-19 23:58:44,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:44,020 INFO L471 AbstractCegarLoop]: Abstraction has 33193 states and 47417 transitions. [2024-11-19 23:58:44,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:44,020 INFO L276 IsEmpty]: Start isEmpty. Operand 33193 states and 47417 transitions. [2024-11-19 23:58:44,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-19 23:58:44,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:44,023 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 23:58:44,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 23:58:44,023 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:44,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:44,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1616712425, now seen corresponding path program 1 times [2024-11-19 23:58:44,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:44,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95157282] [2024-11-19 23:58:44,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:44,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:44,192 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 23:58:44,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:44,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95157282] [2024-11-19 23:58:44,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95157282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:44,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:44,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 23:58:44,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448663975] [2024-11-19 23:58:44,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:44,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 23:58:44,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:44,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 23:58:44,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:58:44,196 INFO L87 Difference]: Start difference. First operand 33193 states and 47417 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:45,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:45,536 INFO L93 Difference]: Finished difference Result 62391 states and 89280 transitions. [2024-11-19 23:58:45,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 23:58:45,537 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 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 92 [2024-11-19 23:58:45,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:45,599 INFO L225 Difference]: With dead ends: 62391 [2024-11-19 23:58:45,599 INFO L226 Difference]: Without dead ends: 57525 [2024-11-19 23:58:45,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-19 23:58:45,613 INFO L432 NwaCegarLoop]: 1633 mSDtfsCounter, 8058 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8058 SdHoareTripleChecker+Valid, 3984 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:45,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8058 Valid, 3984 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 23:58:45,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57525 states. [2024-11-19 23:58:46,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57525 to 38057. [2024-11-19 23:58:46,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38057 states, 38055 states have (on average 1.4276441991853897) internal successors, (54329), 38056 states have internal predecessors, (54329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:46,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38057 states to 38057 states and 54329 transitions. [2024-11-19 23:58:46,612 INFO L78 Accepts]: Start accepts. Automaton has 38057 states and 54329 transitions. Word has length 92 [2024-11-19 23:58:46,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:46,612 INFO L471 AbstractCegarLoop]: Abstraction has 38057 states and 54329 transitions. [2024-11-19 23:58:46,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:46,613 INFO L276 IsEmpty]: Start isEmpty. Operand 38057 states and 54329 transitions. [2024-11-19 23:58:46,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-19 23:58:46,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:46,616 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 23:58:46,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 23:58:46,616 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:46,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:46,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1117757048, now seen corresponding path program 1 times [2024-11-19 23:58:46,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:46,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441850547] [2024-11-19 23:58:46,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:46,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:46,725 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:46,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:46,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441850547] [2024-11-19 23:58:46,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441850547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:46,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:46,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:58:46,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385819902] [2024-11-19 23:58:46,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:46,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:58:46,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:46,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:58:46,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:58:46,729 INFO L87 Difference]: Start difference. First operand 38057 states and 54329 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:47,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:47,168 INFO L93 Difference]: Finished difference Result 56301 states and 80251 transitions. [2024-11-19 23:58:47,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:58:47,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-19 23:58:47,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:47,202 INFO L225 Difference]: With dead ends: 56301 [2024-11-19 23:58:47,202 INFO L226 Difference]: Without dead ends: 19819 [2024-11-19 23:58:47,232 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 [2024-11-19 23:58:47,233 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 53 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:47,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3148 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:58:47,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19819 states. [2024-11-19 23:58:48,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19819 to 19817. [2024-11-19 23:58:48,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19817 states, 19815 states have (on average 1.4215997981327277) internal successors, (28169), 19816 states have internal predecessors, (28169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:48,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19817 states to 19817 states and 28169 transitions. [2024-11-19 23:58:48,071 INFO L78 Accepts]: Start accepts. Automaton has 19817 states and 28169 transitions. Word has length 93 [2024-11-19 23:58:48,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:48,071 INFO L471 AbstractCegarLoop]: Abstraction has 19817 states and 28169 transitions. [2024-11-19 23:58:48,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:48,072 INFO L276 IsEmpty]: Start isEmpty. Operand 19817 states and 28169 transitions. [2024-11-19 23:58:48,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-19 23:58:48,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:48,074 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 23:58:48,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 23:58:48,074 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:48,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:48,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1320571018, now seen corresponding path program 1 times [2024-11-19 23:58:48,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:48,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399472401] [2024-11-19 23:58:48,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:48,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:48,196 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:48,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:48,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399472401] [2024-11-19 23:58:48,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399472401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:48,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:48,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:58:48,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895624082] [2024-11-19 23:58:48,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:48,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:58:48,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:48,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:58:48,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:58:48,199 INFO L87 Difference]: Start difference. First operand 19817 states and 28169 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:48,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:48,610 INFO L93 Difference]: Finished difference Result 28941 states and 41011 transitions. [2024-11-19 23:58:48,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:58:48,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-11-19 23:58:48,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:48,625 INFO L225 Difference]: With dead ends: 28941 [2024-11-19 23:58:48,625 INFO L226 Difference]: Without dead ends: 10699 [2024-11-19 23:58:48,638 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 [2024-11-19 23:58:48,639 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 50 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:48,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3133 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:58:48,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10699 states. [2024-11-19 23:58:48,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10699 to 10697. [2024-11-19 23:58:48,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10697 states, 10695 states have (on average 1.4220663861617577) internal successors, (15209), 10696 states have internal predecessors, (15209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:48,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10697 states to 10697 states and 15209 transitions. [2024-11-19 23:58:48,858 INFO L78 Accepts]: Start accepts. Automaton has 10697 states and 15209 transitions. Word has length 95 [2024-11-19 23:58:48,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:48,858 INFO L471 AbstractCegarLoop]: Abstraction has 10697 states and 15209 transitions. [2024-11-19 23:58:48,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:48,859 INFO L276 IsEmpty]: Start isEmpty. Operand 10697 states and 15209 transitions. [2024-11-19 23:58:48,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-19 23:58:48,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:48,860 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 23:58:48,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 23:58:48,860 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:48,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:48,861 INFO L85 PathProgramCache]: Analyzing trace with hash -969080548, now seen corresponding path program 1 times [2024-11-19 23:58:48,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:48,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668040471] [2024-11-19 23:58:48,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:48,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:48,949 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:48,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:48,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668040471] [2024-11-19 23:58:48,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668040471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:48,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:48,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:58:48,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130775149] [2024-11-19 23:58:48,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:48,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:58:48,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:48,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:58:48,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:58:48,952 INFO L87 Difference]: Start difference. First operand 10697 states and 15209 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:49,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:49,066 INFO L93 Difference]: Finished difference Result 15261 states and 21571 transitions. [2024-11-19 23:58:49,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:58:49,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-19 23:58:49,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:49,073 INFO L225 Difference]: With dead ends: 15261 [2024-11-19 23:58:49,073 INFO L226 Difference]: Without dead ends: 6139 [2024-11-19 23:58:49,078 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 [2024-11-19 23:58:49,079 INFO L432 NwaCegarLoop]: 1592 mSDtfsCounter, 47 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:49,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:58:49,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6139 states. [2024-11-19 23:58:49,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6139 to 6137. [2024-11-19 23:58:49,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6137 states, 6135 states have (on average 1.432599837000815) internal successors, (8789), 6136 states have internal predecessors, (8789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:49,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6137 states to 6137 states and 8789 transitions. [2024-11-19 23:58:49,239 INFO L78 Accepts]: Start accepts. Automaton has 6137 states and 8789 transitions. Word has length 97 [2024-11-19 23:58:49,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:49,239 INFO L471 AbstractCegarLoop]: Abstraction has 6137 states and 8789 transitions. [2024-11-19 23:58:49,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:49,239 INFO L276 IsEmpty]: Start isEmpty. Operand 6137 states and 8789 transitions. [2024-11-19 23:58:49,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-19 23:58:49,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:49,240 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 23:58:49,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 23:58:49,240 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:49,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:49,241 INFO L85 PathProgramCache]: Analyzing trace with hash -83832786, now seen corresponding path program 1 times [2024-11-19 23:58:49,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:49,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775899681] [2024-11-19 23:58:49,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:49,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:49,328 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:49,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:49,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775899681] [2024-11-19 23:58:49,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775899681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:49,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:49,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:58:49,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086754487] [2024-11-19 23:58:49,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:49,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:58:49,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:49,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:58:49,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:58:49,330 INFO L87 Difference]: Start difference. First operand 6137 states and 8789 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:49,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:49,403 INFO L93 Difference]: Finished difference Result 8421 states and 11941 transitions. [2024-11-19 23:58:49,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:58:49,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-19 23:58:49,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:49,410 INFO L225 Difference]: With dead ends: 8421 [2024-11-19 23:58:49,410 INFO L226 Difference]: Without dead ends: 3859 [2024-11-19 23:58:49,414 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 [2024-11-19 23:58:49,414 INFO L432 NwaCegarLoop]: 1585 mSDtfsCounter, 44 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:49,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3103 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:58:49,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3859 states. [2024-11-19 23:58:49,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3859 to 3857. [2024-11-19 23:58:49,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3857 states, 3855 states have (on average 1.4549935149156938) internal successors, (5609), 3856 states have internal predecessors, (5609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:49,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3857 states to 3857 states and 5609 transitions. [2024-11-19 23:58:49,497 INFO L78 Accepts]: Start accepts. Automaton has 3857 states and 5609 transitions. Word has length 99 [2024-11-19 23:58:49,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:49,497 INFO L471 AbstractCegarLoop]: Abstraction has 3857 states and 5609 transitions. [2024-11-19 23:58:49,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:49,498 INFO L276 IsEmpty]: Start isEmpty. Operand 3857 states and 5609 transitions. [2024-11-19 23:58:49,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 23:58:49,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:49,499 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 23:58:49,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 23:58:49,499 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:49,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:49,499 INFO L85 PathProgramCache]: Analyzing trace with hash -709435968, now seen corresponding path program 1 times [2024-11-19 23:58:49,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:49,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587229422] [2024-11-19 23:58:49,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:49,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:49,586 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:49,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:49,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587229422] [2024-11-19 23:58:49,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587229422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:58:49,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:58:49,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 23:58:49,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451843103] [2024-11-19 23:58:49,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:58:49,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 23:58:49,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:49,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 23:58:49,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 23:58:49,589 INFO L87 Difference]: Start difference. First operand 3857 states and 5609 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:49,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:49,634 INFO L93 Difference]: Finished difference Result 5001 states and 7171 transitions. [2024-11-19 23:58:49,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 23:58:49,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-19 23:58:49,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:49,639 INFO L225 Difference]: With dead ends: 5001 [2024-11-19 23:58:49,639 INFO L226 Difference]: Without dead ends: 2719 [2024-11-19 23:58:49,640 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 [2024-11-19 23:58:49,641 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 41 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:49,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3088 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 23:58:49,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2024-11-19 23:58:49,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2717. [2024-11-19 23:58:49,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 2715 states have (on average 1.4858195211786371) internal successors, (4034), 2716 states have internal predecessors, (4034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:49,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 4034 transitions. [2024-11-19 23:58:49,693 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 4034 transitions. Word has length 101 [2024-11-19 23:58:49,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:49,694 INFO L471 AbstractCegarLoop]: Abstraction has 2717 states and 4034 transitions. [2024-11-19 23:58:49,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:49,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 4034 transitions. [2024-11-19 23:58:49,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-19 23:58:49,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:49,698 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:58:49,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 23:58:49,698 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:49,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:49,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1744587218, now seen corresponding path program 1 times [2024-11-19 23:58:49,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:49,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002795045] [2024-11-19 23:58:49,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:49,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:50,505 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:50,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:50,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002795045] [2024-11-19 23:58:50,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002795045] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:58:50,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830120094] [2024-11-19 23:58:50,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:50,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:58:50,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:58:50,508 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) [2024-11-19 23:58:50,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 23:58:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:50,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-19 23:58:50,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:58:51,056 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:51,057 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 23:58:51,429 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:51,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830120094] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 23:58:51,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 23:58:51,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 6] total 22 [2024-11-19 23:58:51,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815603416] [2024-11-19 23:58:51,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 23:58:51,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-19 23:58:51,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:51,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-19 23:58:51,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2024-11-19 23:58:51,432 INFO L87 Difference]: Start difference. First operand 2717 states and 4034 transitions. Second operand has 22 states, 22 states have (on average 13.454545454545455) internal successors, (296), 22 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:55,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:58:55,336 INFO L93 Difference]: Finished difference Result 13443 states and 18416 transitions. [2024-11-19 23:58:55,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-11-19 23:58:55,337 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.454545454545455) internal successors, (296), 22 states have internal predecessors, (296), 0 states have call successors, (0), 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 103 [2024-11-19 23:58:55,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:58:55,351 INFO L225 Difference]: With dead ends: 13443 [2024-11-19 23:58:55,352 INFO L226 Difference]: Without dead ends: 12203 [2024-11-19 23:58:55,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2880 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1313, Invalid=7243, Unknown=0, NotChecked=0, Total=8556 [2024-11-19 23:58:55,360 INFO L432 NwaCegarLoop]: 1546 mSDtfsCounter, 23420 mSDsluCounter, 9539 mSDsCounter, 0 mSdLazyCounter, 1696 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23420 SdHoareTripleChecker+Valid, 11085 SdHoareTripleChecker+Invalid, 1847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:58:55,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23420 Valid, 11085 Invalid, 1847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 23:58:55,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12203 states. [2024-11-19 23:58:55,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12203 to 11473. [2024-11-19 23:58:55,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11473 states, 11471 states have (on average 1.3604742393862785) internal successors, (15606), 11472 states have internal predecessors, (15606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:55,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11473 states to 11473 states and 15606 transitions. [2024-11-19 23:58:55,683 INFO L78 Accepts]: Start accepts. Automaton has 11473 states and 15606 transitions. Word has length 103 [2024-11-19 23:58:55,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:58:55,683 INFO L471 AbstractCegarLoop]: Abstraction has 11473 states and 15606 transitions. [2024-11-19 23:58:55,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.454545454545455) internal successors, (296), 22 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:58:55,684 INFO L276 IsEmpty]: Start isEmpty. Operand 11473 states and 15606 transitions. [2024-11-19 23:58:55,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-19 23:58:55,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:58:55,685 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 23:58:55,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 23:58:55,890 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,SelfDestructingSolverStorable25 [2024-11-19 23:58:55,891 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:58:55,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:58:55,891 INFO L85 PathProgramCache]: Analyzing trace with hash -520471001, now seen corresponding path program 1 times [2024-11-19 23:58:55,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:58:55,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724546428] [2024-11-19 23:58:55,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:55,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:58:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:57,034 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:57,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:58:57,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724546428] [2024-11-19 23:58:57,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724546428] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:58:57,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738161110] [2024-11-19 23:58:57,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:58:57,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:58:57,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:58:57,036 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:58:57,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 23:58:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:58:57,269 INFO L255 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 23:58:57,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:58:57,703 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:57,703 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 23:58:58,782 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:58:58,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738161110] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 23:58:58,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 23:58:58,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-19 23:58:58,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851476585] [2024-11-19 23:58:58,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 23:58:58,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-19 23:58:58,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:58:58,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-19 23:58:58,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=660, Unknown=0, NotChecked=0, Total=756 [2024-11-19 23:58:58,785 INFO L87 Difference]: Start difference. First operand 11473 states and 15606 transitions. Second operand has 28 states, 28 states have (on average 9.428571428571429) internal successors, (264), 27 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:59:01,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:59:01,011 INFO L93 Difference]: Finished difference Result 48667 states and 64714 transitions. [2024-11-19 23:59:01,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-19 23:59:01,012 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.428571428571429) internal successors, (264), 27 states have internal predecessors, (264), 0 states have call successors, (0), 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 104 [2024-11-19 23:59:01,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:59:01,046 INFO L225 Difference]: With dead ends: 48667 [2024-11-19 23:59:01,046 INFO L226 Difference]: Without dead ends: 38913 [2024-11-19 23:59:01,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=608, Invalid=2362, Unknown=0, NotChecked=0, Total=2970 [2024-11-19 23:59:01,056 INFO L432 NwaCegarLoop]: 1524 mSDtfsCounter, 21318 mSDsluCounter, 6580 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21318 SdHoareTripleChecker+Valid, 8104 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 23:59:01,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21318 Valid, 8104 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 23:59:01,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38913 states. [2024-11-19 23:59:02,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38913 to 38693. [2024-11-19 23:59:02,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38693 states, 38691 states have (on average 1.3234343904267143) internal successors, (51205), 38692 states have internal predecessors, (51205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:59:02,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38693 states to 38693 states and 51205 transitions. [2024-11-19 23:59:02,176 INFO L78 Accepts]: Start accepts. Automaton has 38693 states and 51205 transitions. Word has length 104 [2024-11-19 23:59:02,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:59:02,176 INFO L471 AbstractCegarLoop]: Abstraction has 38693 states and 51205 transitions. [2024-11-19 23:59:02,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.428571428571429) internal successors, (264), 27 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:59:02,176 INFO L276 IsEmpty]: Start isEmpty. Operand 38693 states and 51205 transitions. [2024-11-19 23:59:02,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-19 23:59:02,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:59:02,178 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 23:59:02,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 23:59:02,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-19 23:59:02,379 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:59:02,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:59:02,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1922015015, now seen corresponding path program 1 times [2024-11-19 23:59:02,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:59:02,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813123438] [2024-11-19 23:59:02,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:59:02,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:59:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:59:03,260 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:59:03,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:59:03,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813123438] [2024-11-19 23:59:03,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813123438] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:59:03,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76451625] [2024-11-19 23:59:03,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:59:03,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:59:03,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:59:03,264 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:59:03,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 23:59:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:59:03,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 23:59:03,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:59:03,927 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:59:03,927 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 23:59:05,002 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:59:05,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76451625] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 23:59:05,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 23:59:05,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 26 [2024-11-19 23:59:05,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91880401] [2024-11-19 23:59:05,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 23:59:05,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-19 23:59:05,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:59:05,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-19 23:59:05,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2024-11-19 23:59:05,005 INFO L87 Difference]: Start difference. First operand 38693 states and 51205 transitions. Second operand has 27 states, 27 states have (on average 10.296296296296296) internal successors, (278), 26 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:59:06,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:59:06,777 INFO L93 Difference]: Finished difference Result 74825 states and 98746 transitions. [2024-11-19 23:59:06,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:59:06,777 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.296296296296296) internal successors, (278), 26 states have internal predecessors, (278), 0 states have call successors, (0), 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 104 [2024-11-19 23:59:06,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:59:06,826 INFO L225 Difference]: With dead ends: 74825 [2024-11-19 23:59:06,826 INFO L226 Difference]: Without dead ends: 39921 [2024-11-19 23:59:06,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=315, Invalid=1091, Unknown=0, NotChecked=0, Total=1406 [2024-11-19 23:59:06,852 INFO L432 NwaCegarLoop]: 1526 mSDtfsCounter, 15597 mSDsluCounter, 6376 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15597 SdHoareTripleChecker+Valid, 7902 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 23:59:06,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15597 Valid, 7902 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 23:59:06,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39921 states. [2024-11-19 23:59:08,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39921 to 37449. [2024-11-19 23:59:08,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37449 states, 37447 states have (on average 1.310038187304724) internal successors, (49057), 37448 states have internal predecessors, (49057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:59:08,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37449 states to 37449 states and 49057 transitions. [2024-11-19 23:59:08,234 INFO L78 Accepts]: Start accepts. Automaton has 37449 states and 49057 transitions. Word has length 104 [2024-11-19 23:59:08,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:59:08,234 INFO L471 AbstractCegarLoop]: Abstraction has 37449 states and 49057 transitions. [2024-11-19 23:59:08,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.296296296296296) internal successors, (278), 26 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 23:59:08,234 INFO L276 IsEmpty]: Start isEmpty. Operand 37449 states and 49057 transitions. [2024-11-19 23:59:08,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-19 23:59:08,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:59:08,236 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 23:59:08,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 23:59:08,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:59:08,436 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:59:08,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:59:08,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1393813607, now seen corresponding path program 1 times [2024-11-19 23:59:08,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:59:08,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309525564] [2024-11-19 23:59:08,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:59:08,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:59:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:59:09,133 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:59:09,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:59:09,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309525564] [2024-11-19 23:59:09,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309525564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 23:59:09,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4487060] [2024-11-19 23:59:09,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:59:09,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 23:59:09,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:59:09,135 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 23:59:09,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 23:59:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:59:09,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-19 23:59:09,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 23:59:09,741 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:59:09,741 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 23:59:10,739 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:59:10,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4487060] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 23:59:10,739 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 23:59:10,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-19 23:59:10,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231905480] [2024-11-19 23:59:10,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 23:59:10,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-19 23:59:10,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:59:10,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-19 23:59:10,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2024-11-19 23:59:10,742 INFO L87 Difference]: Start difference. First operand 37449 states and 49057 transitions. Second operand has 28 states, 28 states have (on average 10.142857142857142) internal successors, (284), 27 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)