./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.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.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.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.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 65aa760b31ea5e49c4bb5ba7f2fb3b1e4951bce7653ba384d4ba0c02ae0acea3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 00:01:48,610 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 00:01:48,671 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 00:01:48,677 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 00:01:48,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 00:01:48,703 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 00:01:48,703 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 00:01:48,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 00:01:48,704 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 00:01:48,705 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 00:01:48,705 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 00:01:48,706 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 00:01:48,706 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 00:01:48,707 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 00:01:48,707 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 00:01:48,707 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 00:01:48,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 00:01:48,708 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 00:01:48,708 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 00:01:48,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 00:01:48,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 00:01:48,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 00:01:48,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 00:01:48,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 00:01:48,711 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 00:01:48,711 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 00:01:48,715 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 00:01:48,715 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 00:01:48,716 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 00:01:48,716 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 00:01:48,716 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 00:01:48,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 00:01:48,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:01:48,717 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 00:01:48,717 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 00:01:48,717 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 00:01:48,718 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 00:01:48,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 00:01:48,718 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 00:01:48,718 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 00:01:48,718 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 00:01:48,720 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 00:01:48,720 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65aa760b31ea5e49c4bb5ba7f2fb3b1e4951bce7653ba384d4ba0c02ae0acea3 [2024-11-20 00:01:48,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 00:01:49,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 00:01:49,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 00:01:49,005 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 00:01:49,005 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 00:01:49,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-11-20 00:01:50,487 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 00:01:50,897 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 00:01:50,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-11-20 00:01:50,941 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f9c513d3/59d97500904e4fed934e8b97d19c553a/FLAG3b76d0d36 [2024-11-20 00:01:51,002 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f9c513d3/59d97500904e4fed934e8b97d19c553a [2024-11-20 00:01:51,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 00:01:51,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 00:01:51,014 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 00:01:51,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 00:01:51,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 00:01:51,032 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:01:51" (1/1) ... [2024-11-20 00:01:51,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@498f4b3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:01:51, skipping insertion in model container [2024-11-20 00:01:51,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:01:51" (1/1) ... [2024-11-20 00:01:51,184 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 00:01:51,599 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.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c[20528,20541] [2024-11-20 00:01:51,643 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.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c[27464,27477] [2024-11-20 00:01:52,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:01:52,352 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 00:01:52,403 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.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c[20528,20541] [2024-11-20 00:01:52,413 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.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c[27464,27477] [2024-11-20 00:01:52,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 00:01:52,796 INFO L204 MainTranslator]: Completed translation [2024-11-20 00:01:52,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:01:52 WrapperNode [2024-11-20 00:01:52,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 00:01:52,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 00:01:52,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 00:01:52,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 00:01:52,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:01:52" (1/1) ... [2024-11-20 00:01:52,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:01:52" (1/1) ... [2024-11-20 00:01:53,156 INFO L138 Inliner]: procedures = 39, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5217 [2024-11-20 00:01:53,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 00:01:53,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 00:01:53,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 00:01:53,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 00:01:53,168 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:01:52" (1/1) ... [2024-11-20 00:01:53,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:01:52" (1/1) ... [2024-11-20 00:01:53,225 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:01:52" (1/1) ... [2024-11-20 00:01:53,414 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]. [2024-11-20 00:01:53,415 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:01:52" (1/1) ... [2024-11-20 00:01:53,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:01:52" (1/1) ... [2024-11-20 00:01:53,569 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:01:52" (1/1) ... [2024-11-20 00:01:53,602 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:01:52" (1/1) ... [2024-11-20 00:01:53,628 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:01:52" (1/1) ... [2024-11-20 00:01:53,647 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:01:52" (1/1) ... [2024-11-20 00:01:53,703 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 00:01:53,704 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 00:01:53,705 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 00:01:53,705 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 00:01:53,706 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:01:52" (1/1) ... [2024-11-20 00:01:53,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 00:01:53,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 00:01:53,741 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) [2024-11-20 00:01:53,745 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 [2024-11-20 00:01:53,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 00:01:53,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 00:01:53,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 00:01:53,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 00:01:53,962 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 00:01:53,964 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 00:01:58,297 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-11-20 00:01:58,298 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 00:01:58,345 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 00:01:58,346 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 00:01:58,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:01:58 BoogieIcfgContainer [2024-11-20 00:01:58,346 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 00:01:58,349 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 00:01:58,349 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 00:01:58,352 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 00:01:58,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:01:51" (1/3) ... [2024-11-20 00:01:58,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11cf5ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:01:58, skipping insertion in model container [2024-11-20 00:01:58,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:01:52" (2/3) ... [2024-11-20 00:01:58,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11cf5ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:01:58, skipping insertion in model container [2024-11-20 00:01:58,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:01:58" (3/3) ... [2024-11-20 00:01:58,356 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7_overflow.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-11-20 00:01:58,372 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 00:01:58,373 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 00:01:58,470 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 00:01:58,478 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;@6f054c26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 00:01:58,478 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-20 00:01:58,490 INFO L276 IsEmpty]: Start isEmpty. Operand has 930 states, 927 states have (on average 1.9039913700107876) internal successors, (1765), 929 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:01:58,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-20 00:01:58,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:01:58,501 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] [2024-11-20 00:01:58,502 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:01:58,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:01:58,510 INFO L85 PathProgramCache]: Analyzing trace with hash 495960789, now seen corresponding path program 1 times [2024-11-20 00:01:58,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:01:58,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226131883] [2024-11-20 00:01:58,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:01:58,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:01:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:01:58,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:01:58,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:01:58,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226131883] [2024-11-20 00:01:58,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226131883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:01:58,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:01:58,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 00:01:58,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523436514] [2024-11-20 00:01:58,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:01:58,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 00:01:58,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:01:58,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 00:01:58,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 00:01:58,899 INFO L87 Difference]: Start difference. First operand has 930 states, 927 states have (on average 1.9039913700107876) internal successors, (1765), 929 states have internal predecessors, (1765), 0 states have call successors, (0), 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 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:01:58,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:01:58,993 INFO L93 Difference]: Finished difference Result 1802 states and 3420 transitions. [2024-11-20 00:01:58,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 00:01:58,996 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2024-11-20 00:01:58,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:01:59,012 INFO L225 Difference]: With dead ends: 1802 [2024-11-20 00:01:59,013 INFO L226 Difference]: Without dead ends: 864 [2024-11-20 00:01:59,024 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 [2024-11-20 00:01:59,028 INFO L432 NwaCegarLoop]: 1696 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, 1696 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 [2024-11-20 00:01:59,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1696 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:01:59,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-20 00:01:59,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 864. [2024-11-20 00:01:59,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 862 states have (on average 1.8932714617169373) internal successors, (1632), 863 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:01:59,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1632 transitions. [2024-11-20 00:01:59,117 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1632 transitions. Word has length 28 [2024-11-20 00:01:59,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:01:59,118 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1632 transitions. [2024-11-20 00:01:59,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:01:59,119 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1632 transitions. [2024-11-20 00:01:59,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-20 00:01:59,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:01:59,122 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:01:59,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 00:01:59,122 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:01:59,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:01:59,123 INFO L85 PathProgramCache]: Analyzing trace with hash 714815507, now seen corresponding path program 1 times [2024-11-20 00:01:59,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:01:59,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59424896] [2024-11-20 00:01:59,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:01:59,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:01:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:01:59,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:01:59,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:01:59,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59424896] [2024-11-20 00:01:59,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59424896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:01:59,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:01:59,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 00:01:59,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755600103] [2024-11-20 00:01:59,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:01:59,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 00:01:59,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:01:59,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 00:01:59,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:01:59,394 INFO L87 Difference]: Start difference. First operand 864 states and 1632 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:01:59,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:01:59,536 INFO L93 Difference]: Finished difference Result 922 states and 1723 transitions. [2024-11-20 00:01:59,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 00:01:59,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2024-11-20 00:01:59,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:01:59,541 INFO L225 Difference]: With dead ends: 922 [2024-11-20 00:01:59,542 INFO L226 Difference]: Without dead ends: 864 [2024-11-20 00:01:59,543 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 [2024-11-20 00:01:59,544 INFO L432 NwaCegarLoop]: 1630 mSDtfsCounter, 0 mSDsluCounter, 4835 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6465 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:01:59,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6465 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:01:59,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-20 00:01:59,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 864. [2024-11-20 00:01:59,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 862 states have (on average 1.8352668213457077) internal successors, (1582), 863 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:01:59,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1582 transitions. [2024-11-20 00:01:59,569 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1582 transitions. Word has length 28 [2024-11-20 00:01:59,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:01:59,570 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1582 transitions. [2024-11-20 00:01:59,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:01:59,570 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1582 transitions. [2024-11-20 00:01:59,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 00:01:59,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:01:59,575 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:01:59,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 00:01:59,576 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:01:59,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:01:59,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1438669637, now seen corresponding path program 1 times [2024-11-20 00:01:59,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:01:59,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355902646] [2024-11-20 00:01:59,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:01:59,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:01:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:01:59,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:01:59,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:01:59,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355902646] [2024-11-20 00:01:59,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355902646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:01:59,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:01:59,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 00:01:59,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818708052] [2024-11-20 00:01:59,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:01:59,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 00:01:59,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:01:59,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 00:01:59,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 00:01:59,857 INFO L87 Difference]: Start difference. First operand 864 states and 1582 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:05,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:05,556 INFO L93 Difference]: Finished difference Result 3119 states and 5891 transitions. [2024-11-20 00:02:05,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 00:02:05,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-20 00:02:05,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:05,570 INFO L225 Difference]: With dead ends: 3119 [2024-11-20 00:02:05,571 INFO L226 Difference]: Without dead ends: 2366 [2024-11-20 00:02:05,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 00:02:05,574 INFO L432 NwaCegarLoop]: 836 mSDtfsCounter, 2467 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5518 mSolverCounterSat, 1100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 6618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1100 IncrementalHoareTripleChecker+Valid, 5518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-20 00:02:05,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2467 Valid, 854 Invalid, 6618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1100 Valid, 5518 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-20 00:02:05,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2024-11-20 00:02:05,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2366. [2024-11-20 00:02:05,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2366 states, 2364 states have (on average 1.5685279187817258) internal successors, (3708), 2365 states have internal predecessors, (3708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:05,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 3708 transitions. [2024-11-20 00:02:05,699 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 3708 transitions. Word has length 60 [2024-11-20 00:02:05,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:05,700 INFO L471 AbstractCegarLoop]: Abstraction has 2366 states and 3708 transitions. [2024-11-20 00:02:05,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:05,700 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 3708 transitions. [2024-11-20 00:02:05,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-20 00:02:05,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:05,702 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:05,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 00:02:05,703 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:05,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:05,704 INFO L85 PathProgramCache]: Analyzing trace with hash -585081934, now seen corresponding path program 1 times [2024-11-20 00:02:05,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:05,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193787512] [2024-11-20 00:02:05,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:05,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:05,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:02:05,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:05,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193787512] [2024-11-20 00:02:05,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193787512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:05,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:05,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:02:05,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779612942] [2024-11-20 00:02:05,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:05,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:02:05,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:05,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:02:05,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:02:05,982 INFO L87 Difference]: Start difference. First operand 2366 states and 3708 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:06,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:06,401 INFO L93 Difference]: Finished difference Result 3122 states and 4926 transitions. [2024-11-20 00:02:06,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 00:02:06,402 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-20 00:02:06,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:06,415 INFO L225 Difference]: With dead ends: 3122 [2024-11-20 00:02:06,415 INFO L226 Difference]: Without dead ends: 3068 [2024-11-20 00:02:06,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-20 00:02:06,420 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 11503 mSDsluCounter, 3556 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11503 SdHoareTripleChecker+Valid, 5134 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 00:02:06,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11503 Valid, 5134 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 00:02:06,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2024-11-20 00:02:06,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 2418. [2024-11-20 00:02:06,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 2416 states have (on average 1.5695364238410596) internal successors, (3792), 2417 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:06,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3792 transitions. [2024-11-20 00:02:06,473 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3792 transitions. Word has length 77 [2024-11-20 00:02:06,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:06,474 INFO L471 AbstractCegarLoop]: Abstraction has 2418 states and 3792 transitions. [2024-11-20 00:02:06,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:06,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3792 transitions. [2024-11-20 00:02:06,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-20 00:02:06,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:06,476 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:06,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 00:02:06,477 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:06,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:06,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1038714270, now seen corresponding path program 1 times [2024-11-20 00:02:06,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:06,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525162629] [2024-11-20 00:02:06,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:06,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:06,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:02:06,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:06,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525162629] [2024-11-20 00:02:06,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525162629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:06,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:06,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 00:02:06,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774243203] [2024-11-20 00:02:06,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:06,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 00:02:06,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:06,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 00:02:06,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 00:02:06,599 INFO L87 Difference]: Start difference. First operand 2418 states and 3792 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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) [2024-11-20 00:02:06,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:06,643 INFO L93 Difference]: Finished difference Result 2619 states and 4115 transitions. [2024-11-20 00:02:06,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 00:02:06,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-20 00:02:06,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:06,655 INFO L225 Difference]: With dead ends: 2619 [2024-11-20 00:02:06,655 INFO L226 Difference]: Without dead ends: 2513 [2024-11-20 00:02:06,656 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 [2024-11-20 00:02:06,657 INFO L432 NwaCegarLoop]: 1580 mSDtfsCounter, 1498 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:02:06,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1662 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:02:06,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2024-11-20 00:02:06,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 2511. [2024-11-20 00:02:06,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2509 states have (on average 1.570346751693902) internal successors, (3940), 2510 states have internal predecessors, (3940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:06,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 3940 transitions. [2024-11-20 00:02:06,713 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 3940 transitions. Word has length 79 [2024-11-20 00:02:06,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:06,714 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 3940 transitions. [2024-11-20 00:02:06,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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) [2024-11-20 00:02:06,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 3940 transitions. [2024-11-20 00:02:06,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-20 00:02:06,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:06,715 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:06,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 00:02:06,716 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:06,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:06,716 INFO L85 PathProgramCache]: Analyzing trace with hash -972220758, now seen corresponding path program 1 times [2024-11-20 00:02:06,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:06,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885007614] [2024-11-20 00:02:06,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:06,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:07,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:02:07,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:07,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885007614] [2024-11-20 00:02:07,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885007614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:07,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:07,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:02:07,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336551987] [2024-11-20 00:02:07,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:07,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:02:07,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:07,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:02:07,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:02:07,119 INFO L87 Difference]: Start difference. First operand 2511 states and 3940 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 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) [2024-11-20 00:02:07,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:07,481 INFO L93 Difference]: Finished difference Result 2712 states and 4260 transitions. [2024-11-20 00:02:07,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 00:02:07,484 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-20 00:02:07,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:07,496 INFO L225 Difference]: With dead ends: 2712 [2024-11-20 00:02:07,496 INFO L226 Difference]: Without dead ends: 2513 [2024-11-20 00:02:07,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-20 00:02:07,501 INFO L432 NwaCegarLoop]: 1573 mSDtfsCounter, 7555 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7555 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:02:07,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7555 Valid, 2077 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:02:07,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2024-11-20 00:02:07,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 2511. [2024-11-20 00:02:07,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2509 states have (on average 1.5695496213630928) internal successors, (3938), 2510 states have internal predecessors, (3938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:07,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 3938 transitions. [2024-11-20 00:02:07,568 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 3938 transitions. Word has length 79 [2024-11-20 00:02:07,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:07,568 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 3938 transitions. [2024-11-20 00:02:07,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 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) [2024-11-20 00:02:07,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 3938 transitions. [2024-11-20 00:02:07,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-20 00:02:07,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:07,570 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:07,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 00:02:07,570 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:07,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:07,571 INFO L85 PathProgramCache]: Analyzing trace with hash -488795339, now seen corresponding path program 1 times [2024-11-20 00:02:07,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:07,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737437509] [2024-11-20 00:02:07,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:07,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:07,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:02:07,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:07,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737437509] [2024-11-20 00:02:07,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737437509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:07,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:07,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 00:02:07,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502787838] [2024-11-20 00:02:07,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:07,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 00:02:07,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:07,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 00:02:07,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:02:07,912 INFO L87 Difference]: Start difference. First operand 2511 states and 3938 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:07,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:07,993 INFO L93 Difference]: Finished difference Result 2519 states and 3947 transitions. [2024-11-20 00:02:07,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 00:02:07,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-20 00:02:07,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:08,004 INFO L225 Difference]: With dead ends: 2519 [2024-11-20 00:02:08,005 INFO L226 Difference]: Without dead ends: 2517 [2024-11-20 00:02:08,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-20 00:02:08,009 INFO L432 NwaCegarLoop]: 1576 mSDtfsCounter, 0 mSDsluCounter, 9443 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11019 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 00:02:08,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11019 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:02:08,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2024-11-20 00:02:08,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2517. [2024-11-20 00:02:08,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2517 states, 2515 states have (on average 1.5677932405566601) internal successors, (3943), 2516 states have internal predecessors, (3943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:08,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 3943 transitions. [2024-11-20 00:02:08,064 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 3943 transitions. Word has length 80 [2024-11-20 00:02:08,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:08,064 INFO L471 AbstractCegarLoop]: Abstraction has 2517 states and 3943 transitions. [2024-11-20 00:02:08,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:08,065 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 3943 transitions. [2024-11-20 00:02:08,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-20 00:02:08,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:08,069 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:08,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 00:02:08,070 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:08,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:08,070 INFO L85 PathProgramCache]: Analyzing trace with hash 295676394, now seen corresponding path program 1 times [2024-11-20 00:02:08,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:08,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949557490] [2024-11-20 00:02:08,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:08,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:08,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:02:08,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:08,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949557490] [2024-11-20 00:02:08,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949557490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:08,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:08,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 00:02:08,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748215830] [2024-11-20 00:02:08,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:08,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 00:02:08,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:08,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 00:02:08,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 00:02:08,140 INFO L87 Difference]: Start difference. First operand 2517 states and 3943 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-11-20 00:02:08,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:08,177 INFO L93 Difference]: Finished difference Result 2735 states and 4284 transitions. [2024-11-20 00:02:08,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 00:02:08,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-20 00:02:08,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:08,188 INFO L225 Difference]: With dead ends: 2735 [2024-11-20 00:02:08,188 INFO L226 Difference]: Without dead ends: 2623 [2024-11-20 00:02:08,189 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 [2024-11-20 00:02:08,190 INFO L432 NwaCegarLoop]: 1654 mSDtfsCounter, 1516 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1742 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 [2024-11-20 00:02:08,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1742 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:02:08,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2024-11-20 00:02:08,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2621. [2024-11-20 00:02:08,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2621 states, 2619 states have (on average 1.5670103092783505) internal successors, (4104), 2620 states have internal predecessors, (4104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:08,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2621 states to 2621 states and 4104 transitions. [2024-11-20 00:02:08,246 INFO L78 Accepts]: Start accepts. Automaton has 2621 states and 4104 transitions. Word has length 81 [2024-11-20 00:02:08,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:08,247 INFO L471 AbstractCegarLoop]: Abstraction has 2621 states and 4104 transitions. [2024-11-20 00:02:08,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-11-20 00:02:08,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2621 states and 4104 transitions. [2024-11-20 00:02:08,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-20 00:02:08,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:08,248 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:08,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 00:02:08,249 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:08,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:08,249 INFO L85 PathProgramCache]: Analyzing trace with hash -2057221398, now seen corresponding path program 1 times [2024-11-20 00:02:08,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:08,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175943276] [2024-11-20 00:02:08,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:08,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:08,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:02:08,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:08,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175943276] [2024-11-20 00:02:08,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175943276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:08,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:08,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 00:02:08,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485495606] [2024-11-20 00:02:08,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:08,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 00:02:08,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:08,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 00:02:08,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 00:02:08,309 INFO L87 Difference]: Start difference. First operand 2621 states and 4104 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-11-20 00:02:08,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:08,349 INFO L93 Difference]: Finished difference Result 3211 states and 5024 transitions. [2024-11-20 00:02:08,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 00:02:08,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-20 00:02:08,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:08,360 INFO L225 Difference]: With dead ends: 3211 [2024-11-20 00:02:08,360 INFO L226 Difference]: Without dead ends: 2904 [2024-11-20 00:02:08,362 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 [2024-11-20 00:02:08,362 INFO L432 NwaCegarLoop]: 1656 mSDtfsCounter, 1514 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1748 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 [2024-11-20 00:02:08,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:02:08,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2024-11-20 00:02:08,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 2902. [2024-11-20 00:02:08,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2902 states, 2900 states have (on average 1.5641379310344827) internal successors, (4536), 2901 states have internal predecessors, (4536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:08,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2902 states to 2902 states and 4536 transitions. [2024-11-20 00:02:08,427 INFO L78 Accepts]: Start accepts. Automaton has 2902 states and 4536 transitions. Word has length 81 [2024-11-20 00:02:08,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:08,427 INFO L471 AbstractCegarLoop]: Abstraction has 2902 states and 4536 transitions. [2024-11-20 00:02:08,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-11-20 00:02:08,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2902 states and 4536 transitions. [2024-11-20 00:02:08,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-20 00:02:08,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:08,429 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:08,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 00:02:08,429 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:08,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:08,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1894306838, now seen corresponding path program 1 times [2024-11-20 00:02:08,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:08,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419847918] [2024-11-20 00:02:08,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:08,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:08,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:02:08,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:08,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419847918] [2024-11-20 00:02:08,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419847918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:08,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:08,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 00:02:08,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952871382] [2024-11-20 00:02:08,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:08,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 00:02:08,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:08,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 00:02:08,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 00:02:08,496 INFO L87 Difference]: Start difference. First operand 2902 states and 4536 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-11-20 00:02:08,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:08,552 INFO L93 Difference]: Finished difference Result 4030 states and 6278 transitions. [2024-11-20 00:02:08,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 00:02:08,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-20 00:02:08,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:08,566 INFO L225 Difference]: With dead ends: 4030 [2024-11-20 00:02:08,566 INFO L226 Difference]: Without dead ends: 3442 [2024-11-20 00:02:08,569 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 [2024-11-20 00:02:08,569 INFO L432 NwaCegarLoop]: 1654 mSDtfsCounter, 1512 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1750 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 [2024-11-20 00:02:08,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:02:08,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2024-11-20 00:02:08,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3440. [2024-11-20 00:02:08,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3440 states, 3438 states have (on average 1.556719022687609) internal successors, (5352), 3439 states have internal predecessors, (5352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:08,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 5352 transitions. [2024-11-20 00:02:08,657 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 5352 transitions. Word has length 81 [2024-11-20 00:02:08,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:08,658 INFO L471 AbstractCegarLoop]: Abstraction has 3440 states and 5352 transitions. [2024-11-20 00:02:08,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-11-20 00:02:08,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 5352 transitions. [2024-11-20 00:02:08,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-20 00:02:08,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:08,659 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:08,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 00:02:08,660 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:08,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:08,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1630450454, now seen corresponding path program 1 times [2024-11-20 00:02:08,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:08,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575810258] [2024-11-20 00:02:08,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:08,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:02:08,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:08,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575810258] [2024-11-20 00:02:08,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575810258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:08,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:08,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 00:02:08,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459028481] [2024-11-20 00:02:08,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:08,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 00:02:08,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:08,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 00:02:08,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 00:02:08,736 INFO L87 Difference]: Start difference. First operand 3440 states and 5352 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-11-20 00:02:08,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:08,807 INFO L93 Difference]: Finished difference Result 5596 states and 8642 transitions. [2024-11-20 00:02:08,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 00:02:08,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-20 00:02:08,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:08,817 INFO L225 Difference]: With dead ends: 5596 [2024-11-20 00:02:08,818 INFO L226 Difference]: Without dead ends: 4470 [2024-11-20 00:02:08,820 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 [2024-11-20 00:02:08,821 INFO L432 NwaCegarLoop]: 1652 mSDtfsCounter, 1510 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1752 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 [2024-11-20 00:02:08,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:02:08,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4470 states. [2024-11-20 00:02:08,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4470 to 4468. [2024-11-20 00:02:08,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4468 states, 4466 states have (on average 1.542319749216301) internal successors, (6888), 4467 states have internal predecessors, (6888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:08,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4468 states to 4468 states and 6888 transitions. [2024-11-20 00:02:08,935 INFO L78 Accepts]: Start accepts. Automaton has 4468 states and 6888 transitions. Word has length 81 [2024-11-20 00:02:08,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:08,936 INFO L471 AbstractCegarLoop]: Abstraction has 4468 states and 6888 transitions. [2024-11-20 00:02:08,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-11-20 00:02:08,937 INFO L276 IsEmpty]: Start isEmpty. Operand 4468 states and 6888 transitions. [2024-11-20 00:02:08,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-20 00:02:08,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:08,938 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:08,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 00:02:08,938 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:08,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:08,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1687310058, now seen corresponding path program 1 times [2024-11-20 00:02:08,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:08,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509944385] [2024-11-20 00:02:08,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:08,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:09,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:02:09,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:09,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509944385] [2024-11-20 00:02:09,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509944385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:09,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:09,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 00:02:09,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411781124] [2024-11-20 00:02:09,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:09,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 00:02:09,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:09,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 00:02:09,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 00:02:09,052 INFO L87 Difference]: Start difference. First operand 4468 states and 6888 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-11-20 00:02:09,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:09,180 INFO L93 Difference]: Finished difference Result 8584 states and 13082 transitions. [2024-11-20 00:02:09,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 00:02:09,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-20 00:02:09,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:09,196 INFO L225 Difference]: With dead ends: 8584 [2024-11-20 00:02:09,198 INFO L226 Difference]: Without dead ends: 6430 [2024-11-20 00:02:09,203 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 [2024-11-20 00:02:09,204 INFO L432 NwaCegarLoop]: 1640 mSDtfsCounter, 1506 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1748 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 [2024-11-20 00:02:09,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:02:09,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6430 states. [2024-11-20 00:02:09,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6430 to 6428. [2024-11-20 00:02:09,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6428 states, 6426 states have (on average 1.5200746965452847) internal successors, (9768), 6427 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:09,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6428 states to 6428 states and 9768 transitions. [2024-11-20 00:02:09,416 INFO L78 Accepts]: Start accepts. Automaton has 6428 states and 9768 transitions. Word has length 81 [2024-11-20 00:02:09,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:09,417 INFO L471 AbstractCegarLoop]: Abstraction has 6428 states and 9768 transitions. [2024-11-20 00:02:09,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-11-20 00:02:09,417 INFO L276 IsEmpty]: Start isEmpty. Operand 6428 states and 9768 transitions. [2024-11-20 00:02:09,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-20 00:02:09,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:09,418 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:09,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 00:02:09,419 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:09,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:09,419 INFO L85 PathProgramCache]: Analyzing trace with hash -826724374, now seen corresponding path program 1 times [2024-11-20 00:02:09,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:09,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431739228] [2024-11-20 00:02:09,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:09,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:09,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:02:09,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:09,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431739228] [2024-11-20 00:02:09,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431739228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:09,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:09,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 00:02:09,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076981675] [2024-11-20 00:02:09,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:09,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 00:02:09,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:09,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 00:02:09,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 00:02:09,503 INFO L87 Difference]: Start difference. First operand 6428 states and 9768 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-11-20 00:02:09,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:09,694 INFO L93 Difference]: Finished difference Result 14272 states and 21386 transitions. [2024-11-20 00:02:09,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 00:02:09,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-20 00:02:09,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:09,717 INFO L225 Difference]: With dead ends: 14272 [2024-11-20 00:02:09,717 INFO L226 Difference]: Without dead ends: 10158 [2024-11-20 00:02:09,727 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 [2024-11-20 00:02:09,728 INFO L432 NwaCegarLoop]: 1638 mSDtfsCounter, 1504 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1750 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 [2024-11-20 00:02:09,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:02:09,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10158 states. [2024-11-20 00:02:10,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10158 to 10156. [2024-11-20 00:02:10,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10156 states, 10154 states have (on average 1.4914319480007878) internal successors, (15144), 10155 states have internal predecessors, (15144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:10,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10156 states to 10156 states and 15144 transitions. [2024-11-20 00:02:10,040 INFO L78 Accepts]: Start accepts. Automaton has 10156 states and 15144 transitions. Word has length 81 [2024-11-20 00:02:10,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:10,040 INFO L471 AbstractCegarLoop]: Abstraction has 10156 states and 15144 transitions. [2024-11-20 00:02:10,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-11-20 00:02:10,041 INFO L276 IsEmpty]: Start isEmpty. Operand 10156 states and 15144 transitions. [2024-11-20 00:02:10,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-20 00:02:10,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:10,042 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:10,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 00:02:10,042 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:10,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:10,043 INFO L85 PathProgramCache]: Analyzing trace with hash -392188438, now seen corresponding path program 1 times [2024-11-20 00:02:10,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:10,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137766367] [2024-11-20 00:02:10,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:10,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:10,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 00:02:10,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:10,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137766367] [2024-11-20 00:02:10,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137766367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:10,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:10,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 00:02:10,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947046115] [2024-11-20 00:02:10,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:10,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 00:02:10,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:10,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 00:02:10,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 00:02:10,115 INFO L87 Difference]: Start difference. First operand 10156 states and 15144 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-11-20 00:02:10,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:10,364 INFO L93 Difference]: Finished difference Result 25072 states and 36842 transitions. [2024-11-20 00:02:10,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 00:02:10,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-20 00:02:10,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:10,396 INFO L225 Difference]: With dead ends: 25072 [2024-11-20 00:02:10,397 INFO L226 Difference]: Without dead ends: 17230 [2024-11-20 00:02:10,409 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 [2024-11-20 00:02:10,410 INFO L432 NwaCegarLoop]: 1650 mSDtfsCounter, 1508 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1754 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 [2024-11-20 00:02:10,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1754 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 00:02:10,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17230 states. [2024-11-20 00:02:10,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17230 to 17228. [2024-11-20 00:02:10,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17228 states, 17226 states have (on average 1.4587251828631138) internal successors, (25128), 17227 states have internal predecessors, (25128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:10,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17228 states to 17228 states and 25128 transitions. [2024-11-20 00:02:10,978 INFO L78 Accepts]: Start accepts. Automaton has 17228 states and 25128 transitions. Word has length 81 [2024-11-20 00:02:10,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:10,978 INFO L471 AbstractCegarLoop]: Abstraction has 17228 states and 25128 transitions. [2024-11-20 00:02:10,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 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) [2024-11-20 00:02:10,979 INFO L276 IsEmpty]: Start isEmpty. Operand 17228 states and 25128 transitions. [2024-11-20 00:02:10,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-20 00:02:10,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:10,984 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:10,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 00:02:10,984 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:10,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:10,984 INFO L85 PathProgramCache]: Analyzing trace with hash -730351122, now seen corresponding path program 1 times [2024-11-20 00:02:10,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:10,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748071043] [2024-11-20 00:02:10,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:10,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:11,256 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-20 00:02:11,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:11,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748071043] [2024-11-20 00:02:11,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748071043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:11,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:11,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:02:11,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380410152] [2024-11-20 00:02:11,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:11,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:02:11,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:11,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:02:11,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:02:11,258 INFO L87 Difference]: Start difference. First operand 17228 states and 25128 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:13,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:13,375 INFO L93 Difference]: Finished difference Result 120284 states and 173616 transitions. [2024-11-20 00:02:13,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 00:02:13,376 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 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 [2024-11-20 00:02:13,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:13,655 INFO L225 Difference]: With dead ends: 120284 [2024-11-20 00:02:13,656 INFO L226 Difference]: Without dead ends: 109786 [2024-11-20 00:02:13,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:02:13,692 INFO L432 NwaCegarLoop]: 1668 mSDtfsCounter, 9868 mSDsluCounter, 2988 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9868 SdHoareTripleChecker+Valid, 4656 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:02:13,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9868 Valid, 4656 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:02:13,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109786 states. [2024-11-20 00:02:15,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109786 to 29964. [2024-11-20 00:02:15,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29964 states, 29962 states have (on average 1.4452973766771244) internal successors, (43304), 29963 states have internal predecessors, (43304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:15,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29964 states to 29964 states and 43304 transitions. [2024-11-20 00:02:15,566 INFO L78 Accepts]: Start accepts. Automaton has 29964 states and 43304 transitions. Word has length 104 [2024-11-20 00:02:15,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:15,567 INFO L471 AbstractCegarLoop]: Abstraction has 29964 states and 43304 transitions. [2024-11-20 00:02:15,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:15,567 INFO L276 IsEmpty]: Start isEmpty. Operand 29964 states and 43304 transitions. [2024-11-20 00:02:15,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-20 00:02:15,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:15,574 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:15,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 00:02:15,574 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:15,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:15,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1211718382, now seen corresponding path program 1 times [2024-11-20 00:02:15,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:15,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432914551] [2024-11-20 00:02:15,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:15,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:15,819 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 00:02:15,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:15,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432914551] [2024-11-20 00:02:15,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432914551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:15,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:15,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:02:15,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528098857] [2024-11-20 00:02:15,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:15,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:02:15,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:15,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:02:15,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:02:15,822 INFO L87 Difference]: Start difference. First operand 29964 states and 43304 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 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) [2024-11-20 00:02:18,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:18,100 INFO L93 Difference]: Finished difference Result 135196 states and 194992 transitions. [2024-11-20 00:02:18,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 00:02:18,101 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 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 104 [2024-11-20 00:02:18,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:18,503 INFO L225 Difference]: With dead ends: 135196 [2024-11-20 00:02:18,503 INFO L226 Difference]: Without dead ends: 120282 [2024-11-20 00:02:18,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:02:18,550 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 9868 mSDsluCounter, 2972 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9868 SdHoareTripleChecker+Valid, 4639 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:02:18,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9868 Valid, 4639 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:02:18,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120282 states. [2024-11-20 00:02:20,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120282 to 50124. [2024-11-20 00:02:20,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50124 states, 50122 states have (on average 1.437293005067635) internal successors, (72040), 50123 states have internal predecessors, (72040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:20,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50124 states to 50124 states and 72040 transitions. [2024-11-20 00:02:20,792 INFO L78 Accepts]: Start accepts. Automaton has 50124 states and 72040 transitions. Word has length 104 [2024-11-20 00:02:20,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:20,793 INFO L471 AbstractCegarLoop]: Abstraction has 50124 states and 72040 transitions. [2024-11-20 00:02:20,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 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) [2024-11-20 00:02:20,793 INFO L276 IsEmpty]: Start isEmpty. Operand 50124 states and 72040 transitions. [2024-11-20 00:02:20,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-20 00:02:20,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:20,800 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:20,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 00:02:20,801 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:20,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:20,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1374632942, now seen corresponding path program 1 times [2024-11-20 00:02:20,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:20,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630925956] [2024-11-20 00:02:20,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:20,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:21,020 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-20 00:02:21,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:21,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630925956] [2024-11-20 00:02:21,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630925956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:21,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:21,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:02:21,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509172876] [2024-11-20 00:02:21,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:21,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:02:21,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:21,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:02:21,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:02:21,023 INFO L87 Difference]: Start difference. First operand 50124 states and 72040 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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) [2024-11-20 00:02:24,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:24,100 INFO L93 Difference]: Finished difference Result 150108 states and 216304 transitions. [2024-11-20 00:02:24,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 00:02:24,101 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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 104 [2024-11-20 00:02:24,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:24,327 INFO L225 Difference]: With dead ends: 150108 [2024-11-20 00:02:24,327 INFO L226 Difference]: Without dead ends: 135194 [2024-11-20 00:02:24,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:02:24,369 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 9892 mSDsluCounter, 2880 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9892 SdHoareTripleChecker+Valid, 4545 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:02:24,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9892 Valid, 4545 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:02:24,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135194 states. [2024-11-20 00:02:26,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135194 to 65036. [2024-11-20 00:02:26,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65036 states, 65034 states have (on average 1.4354337731032998) internal successors, (93352), 65035 states have internal predecessors, (93352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:26,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65036 states to 65036 states and 93352 transitions. [2024-11-20 00:02:26,828 INFO L78 Accepts]: Start accepts. Automaton has 65036 states and 93352 transitions. Word has length 104 [2024-11-20 00:02:26,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:26,828 INFO L471 AbstractCegarLoop]: Abstraction has 65036 states and 93352 transitions. [2024-11-20 00:02:26,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 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) [2024-11-20 00:02:26,829 INFO L276 IsEmpty]: Start isEmpty. Operand 65036 states and 93352 transitions. [2024-11-20 00:02:26,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-20 00:02:26,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:26,839 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:26,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 00:02:26,839 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:26,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:26,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1638489326, now seen corresponding path program 1 times [2024-11-20 00:02:26,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:26,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566779692] [2024-11-20 00:02:26,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:26,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:27,105 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-20 00:02:27,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:27,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566779692] [2024-11-20 00:02:27,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566779692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:27,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:27,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:02:27,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49118256] [2024-11-20 00:02:27,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:27,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:02:27,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:27,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:02:27,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:02:27,108 INFO L87 Difference]: Start difference. First operand 65036 states and 93352 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 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) [2024-11-20 00:02:30,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:30,712 INFO L93 Difference]: Finished difference Result 165020 states and 237616 transitions. [2024-11-20 00:02:30,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 00:02:30,712 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 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 104 [2024-11-20 00:02:30,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:31,072 INFO L225 Difference]: With dead ends: 165020 [2024-11-20 00:02:31,072 INFO L226 Difference]: Without dead ends: 150106 [2024-11-20 00:02:31,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:02:31,114 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 9982 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9982 SdHoareTripleChecker+Valid, 4486 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:02:31,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9982 Valid, 4486 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:02:31,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150106 states. [2024-11-20 00:02:33,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150106 to 79948. [2024-11-20 00:02:33,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79948 states, 79946 states have (on average 1.434268130988417) internal successors, (114664), 79947 states have internal predecessors, (114664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:34,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79948 states to 79948 states and 114664 transitions. [2024-11-20 00:02:34,183 INFO L78 Accepts]: Start accepts. Automaton has 79948 states and 114664 transitions. Word has length 104 [2024-11-20 00:02:34,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:34,183 INFO L471 AbstractCegarLoop]: Abstraction has 79948 states and 114664 transitions. [2024-11-20 00:02:34,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 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) [2024-11-20 00:02:34,184 INFO L276 IsEmpty]: Start isEmpty. Operand 79948 states and 114664 transitions. [2024-11-20 00:02:34,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-20 00:02:34,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:34,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:34,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 00:02:34,194 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:34,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:34,194 INFO L85 PathProgramCache]: Analyzing trace with hash 661282542, now seen corresponding path program 1 times [2024-11-20 00:02:34,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:34,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610678350] [2024-11-20 00:02:34,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:34,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:34,411 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 00:02:34,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:34,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610678350] [2024-11-20 00:02:34,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610678350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:34,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:34,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:02:34,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122708050] [2024-11-20 00:02:34,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:34,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:02:34,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:34,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:02:34,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:02:34,413 INFO L87 Difference]: Start difference. First operand 79948 states and 114664 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-11-20 00:02:38,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 00:02:38,560 INFO L93 Difference]: Finished difference Result 179932 states and 258928 transitions. [2024-11-20 00:02:38,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 00:02:38,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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 104 [2024-11-20 00:02:38,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 00:02:38,881 INFO L225 Difference]: With dead ends: 179932 [2024-11-20 00:02:38,882 INFO L226 Difference]: Without dead ends: 165018 [2024-11-20 00:02:38,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-20 00:02:38,912 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 10067 mSDsluCounter, 2865 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10067 SdHoareTripleChecker+Valid, 4526 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 00:02:38,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10067 Valid, 4526 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 00:02:39,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165018 states. [2024-11-20 00:02:42,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165018 to 94860. [2024-11-20 00:02:42,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94860 states, 94858 states have (on average 1.4334689746779397) internal successors, (135976), 94859 states have internal predecessors, (135976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 00:02:42,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94860 states to 94860 states and 135976 transitions. [2024-11-20 00:02:42,350 INFO L78 Accepts]: Start accepts. Automaton has 94860 states and 135976 transitions. Word has length 104 [2024-11-20 00:02:42,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 00:02:42,351 INFO L471 AbstractCegarLoop]: Abstraction has 94860 states and 135976 transitions. [2024-11-20 00:02:42,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 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) [2024-11-20 00:02:42,351 INFO L276 IsEmpty]: Start isEmpty. Operand 94860 states and 135976 transitions. [2024-11-20 00:02:42,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-20 00:02:42,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 00:02:42,360 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 00:02:42,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 00:02:42,361 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 00:02:42,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 00:02:42,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1852751890, now seen corresponding path program 1 times [2024-11-20 00:02:42,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 00:02:42,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905866987] [2024-11-20 00:02:42,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 00:02:42,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 00:02:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 00:02:42,791 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-20 00:02:42,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 00:02:42,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905866987] [2024-11-20 00:02:42,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905866987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 00:02:42,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 00:02:42,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 00:02:42,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43485760] [2024-11-20 00:02:42,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 00:02:42,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 00:02:42,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 00:02:42,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 00:02:42,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 00:02:42,794 INFO L87 Difference]: Start difference. First operand 94860 states and 135976 transitions. Second operand has 9 states, 9 states have (on average 10.11111111111111) internal successors, (91), 9 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)