./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 1b5bedda6fafe9d5e27c46cd442327641e760ea4d9632bf3cdc5cb7e6cff3dd5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 04:52:27,428 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 04:52:27,504 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 04:52:27,509 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 04:52:27,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 04:52:27,534 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 04:52:27,535 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 04:52:27,536 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 04:52:27,536 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 04:52:27,537 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 04:52:27,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 04:52:27,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 04:52:27,538 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 04:52:27,539 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 04:52:27,540 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 04:52:27,540 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 04:52:27,540 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 04:52:27,542 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 04:52:27,542 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 04:52:27,542 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 04:52:27,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 04:52:27,543 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 04:52:27,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 04:52:27,543 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 04:52:27,543 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 04:52:27,543 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 04:52:27,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 04:52:27,544 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 04:52:27,544 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 04:52:27,544 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 04:52:27,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 04:52:27,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 04:52:27,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:52:27,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 04:52:27,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 04:52:27,545 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 04:52:27,545 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 04:52:27,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 04:52:27,545 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 04:52:27,545 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 04:52:27,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 04:52:27,547 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 04:52:27,547 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b5bedda6fafe9d5e27c46cd442327641e760ea4d9632bf3cdc5cb7e6cff3dd5 [2024-10-11 04:52:27,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 04:52:27,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 04:52:27,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 04:52:27,816 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 04:52:27,817 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 04:52:27,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c [2024-10-11 04:52:29,243 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 04:52:29,761 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 04:52:29,763 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c [2024-10-11 04:52:29,803 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/1997f893b/b50b7113354245cfb8179938b673ab81/FLAG5989eda4e [2024-10-11 04:52:29,820 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/1997f893b/b50b7113354245cfb8179938b673ab81 [2024-10-11 04:52:29,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 04:52:29,824 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 04:52:29,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 04:52:29,827 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 04:52:29,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 04:52:29,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:52:29" (1/1) ... [2024-10-11 04:52:29,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f4aaf17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:29, skipping insertion in model container [2024-10-11 04:52:29,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:52:29" (1/1) ... [2024-10-11 04:52:30,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 04:52:30,337 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c[15482,15495] [2024-10-11 04:52:30,368 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c[18299,18312] [2024-10-11 04:52:30,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:52:30,884 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 04:52:30,928 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c[15482,15495] [2024-10-11 04:52:30,981 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c[18299,18312] [2024-10-11 04:52:31,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 04:52:31,325 INFO L204 MainTranslator]: Completed translation [2024-10-11 04:52:31,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:31 WrapperNode [2024-10-11 04:52:31,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 04:52:31,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 04:52:31,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 04:52:31,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 04:52:31,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:31" (1/1) ... [2024-10-11 04:52:31,393 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:31" (1/1) ... [2024-10-11 04:52:31,782 INFO L138 Inliner]: procedures = 37, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5159 [2024-10-11 04:52:31,782 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 04:52:31,783 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 04:52:31,783 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 04:52:31,783 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 04:52:31,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:31" (1/1) ... [2024-10-11 04:52:31,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:31" (1/1) ... [2024-10-11 04:52:31,858 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:31" (1/1) ... [2024-10-11 04:52:32,017 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-11 04:52:32,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:31" (1/1) ... [2024-10-11 04:52:32,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:31" (1/1) ... [2024-10-11 04:52:32,170 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:31" (1/1) ... [2024-10-11 04:52:32,204 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:31" (1/1) ... [2024-10-11 04:52:32,230 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:31" (1/1) ... [2024-10-11 04:52:32,257 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:31" (1/1) ... [2024-10-11 04:52:32,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 04:52:32,405 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 04:52:32,405 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 04:52:32,405 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 04:52:32,406 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:31" (1/1) ... [2024-10-11 04:52:32,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 04:52:32,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:52:32,442 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 04:52:32,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 04:52:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 04:52:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 04:52:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 04:52:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 04:52:32,587 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 04:52:32,590 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 04:52:36,440 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-10-11 04:52:36,441 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 04:52:36,488 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 04:52:36,488 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 04:52:36,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:52:36 BoogieIcfgContainer [2024-10-11 04:52:36,489 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 04:52:36,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 04:52:36,490 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 04:52:36,493 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 04:52:36,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:52:29" (1/3) ... [2024-10-11 04:52:36,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3191c96f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:52:36, skipping insertion in model container [2024-10-11 04:52:36,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:52:31" (2/3) ... [2024-10-11 04:52:36,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3191c96f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:52:36, skipping insertion in model container [2024-10-11 04:52:36,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:52:36" (3/3) ... [2024-10-11 04:52:36,495 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.BOUNDED-12.pals+Problem12_label06.c [2024-10-11 04:52:36,508 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 04:52:36,508 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 04:52:36,565 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 04:52:36,571 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;@5b1df29f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 04:52:36,571 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 04:52:36,579 INFO L276 IsEmpty]: Start isEmpty. Operand has 849 states, 846 states have (on average 1.9739952718676124) internal successors, (1670), 848 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:36,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-11 04:52:36,585 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:36,586 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] [2024-10-11 04:52:36,586 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:36,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:36,590 INFO L85 PathProgramCache]: Analyzing trace with hash -304709040, now seen corresponding path program 1 times [2024-10-11 04:52:36,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:36,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461733447] [2024-10-11 04:52:36,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:36,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:36,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:52:36,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:36,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461733447] [2024-10-11 04:52:36,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461733447] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:36,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:36,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 04:52:36,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825749621] [2024-10-11 04:52:36,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:36,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 04:52:36,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:36,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 04:52:36,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 04:52:36,797 INFO L87 Difference]: Start difference. First operand has 849 states, 846 states have (on average 1.9739952718676124) internal successors, (1670), 848 states have internal predecessors, (1670), 0 states have call successors, (0), 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 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:36,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:36,872 INFO L93 Difference]: Finished difference Result 1654 states and 3254 transitions. [2024-10-11 04:52:36,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 04:52:36,874 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2024-10-11 04:52:36,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:36,896 INFO L225 Difference]: With dead ends: 1654 [2024-10-11 04:52:36,896 INFO L226 Difference]: Without dead ends: 845 [2024-10-11 04:52:36,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 04:52:36,908 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:36,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1599 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:52:36,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-10-11 04:52:36,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2024-10-11 04:52:36,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 843 states have (on average 1.896797153024911) internal successors, (1599), 844 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:36,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1599 transitions. [2024-10-11 04:52:36,993 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1599 transitions. Word has length 23 [2024-10-11 04:52:36,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:36,993 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1599 transitions. [2024-10-11 04:52:36,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:36,994 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1599 transitions. [2024-10-11 04:52:36,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-11 04:52:36,996 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:36,996 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] [2024-10-11 04:52:36,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 04:52:36,996 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:36,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:36,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1993652782, now seen corresponding path program 1 times [2024-10-11 04:52:36,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:36,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123419899] [2024-10-11 04:52:36,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:36,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:37,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:52:37,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:37,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123419899] [2024-10-11 04:52:37,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123419899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:37,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:37,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 04:52:37,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146857199] [2024-10-11 04:52:37,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:37,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 04:52:37,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:37,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 04:52:37,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:52:37,158 INFO L87 Difference]: Start difference. First operand 845 states and 1599 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:37,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:37,295 INFO L93 Difference]: Finished difference Result 895 states and 1678 transitions. [2024-10-11 04:52:37,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 04:52:37,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2024-10-11 04:52:37,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:37,303 INFO L225 Difference]: With dead ends: 895 [2024-10-11 04:52:37,304 INFO L226 Difference]: Without dead ends: 845 [2024-10-11 04:52:37,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:52:37,306 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 0 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4744 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:37,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4744 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:52:37,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-10-11 04:52:37,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2024-10-11 04:52:37,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 843 states have (on average 1.849347568208778) internal successors, (1559), 844 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:37,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1559 transitions. [2024-10-11 04:52:37,336 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1559 transitions. Word has length 23 [2024-10-11 04:52:37,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:37,337 INFO L471 AbstractCegarLoop]: Abstraction has 845 states and 1559 transitions. [2024-10-11 04:52:37,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:37,337 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1559 transitions. [2024-10-11 04:52:37,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-11 04:52:37,338 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:37,338 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] [2024-10-11 04:52:37,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 04:52:37,339 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:37,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:37,340 INFO L85 PathProgramCache]: Analyzing trace with hash 863507850, now seen corresponding path program 1 times [2024-10-11 04:52:37,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:37,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950788671] [2024-10-11 04:52:37,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:37,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:37,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:52:37,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:37,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950788671] [2024-10-11 04:52:37,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950788671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:37,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:37,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 04:52:37,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462182595] [2024-10-11 04:52:37,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:37,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:52:37,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:37,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:52:37,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:37,457 INFO L87 Difference]: Start difference. First operand 845 states and 1559 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:41,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:41,325 INFO L93 Difference]: Finished difference Result 2349 states and 4432 transitions. [2024-10-11 04:52:41,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:52:41,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2024-10-11 04:52:41,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:41,333 INFO L225 Difference]: With dead ends: 2349 [2024-10-11 04:52:41,333 INFO L226 Difference]: Without dead ends: 1596 [2024-10-11 04:52:41,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:41,336 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 966 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 711 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 3091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 711 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:41,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [966 Valid, 232 Invalid, 3091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [711 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-10-11 04:52:41,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2024-10-11 04:52:41,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1596. [2024-10-11 04:52:41,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1596 states, 1594 states have (on average 1.8180677540777916) internal successors, (2898), 1595 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:41,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 2898 transitions. [2024-10-11 04:52:41,385 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 2898 transitions. Word has length 23 [2024-10-11 04:52:41,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:41,385 INFO L471 AbstractCegarLoop]: Abstraction has 1596 states and 2898 transitions. [2024-10-11 04:52:41,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:41,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 2898 transitions. [2024-10-11 04:52:41,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 04:52:41,388 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:41,388 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:41,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 04:52:41,388 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:41,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:41,389 INFO L85 PathProgramCache]: Analyzing trace with hash -399525676, now seen corresponding path program 1 times [2024-10-11 04:52:41,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:41,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298858766] [2024-10-11 04:52:41,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:41,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:41,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:52:41,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:41,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298858766] [2024-10-11 04:52:41,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298858766] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:41,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:41,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:52:41,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631638078] [2024-10-11 04:52:41,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:41,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:52:41,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:41,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:52:41,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:52:41,613 INFO L87 Difference]: Start difference. First operand 1596 states and 2898 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:42,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:42,003 INFO L93 Difference]: Finished difference Result 2160 states and 3810 transitions. [2024-10-11 04:52:42,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 04:52:42,003 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-10-11 04:52:42,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:42,012 INFO L225 Difference]: With dead ends: 2160 [2024-10-11 04:52:42,013 INFO L226 Difference]: Without dead ends: 2113 [2024-10-11 04:52:42,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-10-11 04:52:42,015 INFO L432 NwaCegarLoop]: 1552 mSDtfsCounter, 9675 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9675 SdHoareTripleChecker+Valid, 3624 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:42,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9675 Valid, 3624 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 04:52:42,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2024-10-11 04:52:42,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 1641. [2024-10-11 04:52:42,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1641 states, 1639 states have (on average 1.8126906650396584) internal successors, (2971), 1640 states have internal predecessors, (2971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:42,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1641 states to 1641 states and 2971 transitions. [2024-10-11 04:52:42,061 INFO L78 Accepts]: Start accepts. Automaton has 1641 states and 2971 transitions. Word has length 62 [2024-10-11 04:52:42,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:42,062 INFO L471 AbstractCegarLoop]: Abstraction has 1641 states and 2971 transitions. [2024-10-11 04:52:42,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:42,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1641 states and 2971 transitions. [2024-10-11 04:52:42,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 04:52:42,064 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:42,065 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:42,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 04:52:42,065 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:42,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:42,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1824916700, now seen corresponding path program 1 times [2024-10-11 04:52:42,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:42,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960538053] [2024-10-11 04:52:42,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:42,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:42,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:52:42,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:42,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960538053] [2024-10-11 04:52:42,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960538053] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:42,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:42,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:52:42,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346923818] [2024-10-11 04:52:42,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:42,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:52:42,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:42,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:52:42,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:42,168 INFO L87 Difference]: Start difference. First operand 1641 states and 2971 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:42,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:42,211 INFO L93 Difference]: Finished difference Result 1814 states and 3250 transitions. [2024-10-11 04:52:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:52:42,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-11 04:52:42,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:42,220 INFO L225 Difference]: With dead ends: 1814 [2024-10-11 04:52:42,220 INFO L226 Difference]: Without dead ends: 1722 [2024-10-11 04:52:42,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:42,222 INFO L432 NwaCegarLoop]: 1554 mSDtfsCounter, 1488 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:42,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1624 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:52:42,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2024-10-11 04:52:42,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1720. [2024-10-11 04:52:42,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1718 states have (on average 1.8026775320139696) internal successors, (3097), 1719 states have internal predecessors, (3097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:42,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 3097 transitions. [2024-10-11 04:52:42,272 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 3097 transitions. Word has length 64 [2024-10-11 04:52:42,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:42,273 INFO L471 AbstractCegarLoop]: Abstraction has 1720 states and 3097 transitions. [2024-10-11 04:52:42,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:42,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 3097 transitions. [2024-10-11 04:52:42,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 04:52:42,277 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:42,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:42,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 04:52:42,278 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:42,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:42,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1822771748, now seen corresponding path program 1 times [2024-10-11 04:52:42,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:42,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395643889] [2024-10-11 04:52:42,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:42,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:42,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:52:42,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:42,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395643889] [2024-10-11 04:52:42,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395643889] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:42,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:42,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:52:42,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358927786] [2024-10-11 04:52:42,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:42,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:52:42,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:42,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:52:42,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:52:42,783 INFO L87 Difference]: Start difference. First operand 1720 states and 3097 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:43,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:43,027 INFO L93 Difference]: Finished difference Result 1893 states and 3373 transitions. [2024-10-11 04:52:43,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:52:43,028 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-10-11 04:52:43,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:43,033 INFO L225 Difference]: With dead ends: 1893 [2024-10-11 04:52:43,033 INFO L226 Difference]: Without dead ends: 1722 [2024-10-11 04:52:43,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-10-11 04:52:43,034 INFO L432 NwaCegarLoop]: 1548 mSDtfsCounter, 7490 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7490 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:43,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7490 Valid, 1906 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:52:43,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2024-10-11 04:52:43,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1720. [2024-10-11 04:52:43,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1718 states have (on average 1.8015133876600697) internal successors, (3095), 1719 states have internal predecessors, (3095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:43,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 3095 transitions. [2024-10-11 04:52:43,064 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 3095 transitions. Word has length 64 [2024-10-11 04:52:43,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:43,065 INFO L471 AbstractCegarLoop]: Abstraction has 1720 states and 3095 transitions. [2024-10-11 04:52:43,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:43,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 3095 transitions. [2024-10-11 04:52:43,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-11 04:52:43,065 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:43,065 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:43,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 04:52:43,066 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:43,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:43,066 INFO L85 PathProgramCache]: Analyzing trace with hash -800021079, now seen corresponding path program 1 times [2024-10-11 04:52:43,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:43,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456667823] [2024-10-11 04:52:43,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:43,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:43,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:52:43,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:43,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456667823] [2024-10-11 04:52:43,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456667823] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:43,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:43,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 04:52:43,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666076117] [2024-10-11 04:52:43,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:43,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 04:52:43,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:43,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 04:52:43,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:52:43,262 INFO L87 Difference]: Start difference. First operand 1720 states and 3095 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:43,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:43,293 INFO L93 Difference]: Finished difference Result 1726 states and 3102 transitions. [2024-10-11 04:52:43,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 04:52:43,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-10-11 04:52:43,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:43,299 INFO L225 Difference]: With dead ends: 1726 [2024-10-11 04:52:43,299 INFO L226 Difference]: Without dead ends: 1724 [2024-10-11 04:52:43,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:52:43,301 INFO L432 NwaCegarLoop]: 1555 mSDtfsCounter, 0 mSDsluCounter, 3102 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4657 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:43,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4657 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:52:43,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2024-10-11 04:52:43,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1724. [2024-10-11 04:52:43,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1724 states, 1722 states have (on average 1.7990708478513358) internal successors, (3098), 1723 states have internal predecessors, (3098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:43,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 3098 transitions. [2024-10-11 04:52:43,326 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 3098 transitions. Word has length 65 [2024-10-11 04:52:43,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:43,327 INFO L471 AbstractCegarLoop]: Abstraction has 1724 states and 3098 transitions. [2024-10-11 04:52:43,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:43,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 3098 transitions. [2024-10-11 04:52:43,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:52:43,328 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:43,328 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:43,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 04:52:43,329 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:43,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:43,329 INFO L85 PathProgramCache]: Analyzing trace with hash 306458780, now seen corresponding path program 1 times [2024-10-11 04:52:43,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:43,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162600316] [2024-10-11 04:52:43,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:43,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:43,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:52:43,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:43,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162600316] [2024-10-11 04:52:43,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162600316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:43,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:43,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:52:43,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636098696] [2024-10-11 04:52:43,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:43,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:52:43,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:43,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:52:43,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:43,390 INFO L87 Difference]: Start difference. First operand 1724 states and 3098 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:43,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:43,416 INFO L93 Difference]: Finished difference Result 1910 states and 3391 transitions. [2024-10-11 04:52:43,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:52:43,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-11 04:52:43,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:43,422 INFO L225 Difference]: With dead ends: 1910 [2024-10-11 04:52:43,423 INFO L226 Difference]: Without dead ends: 1814 [2024-10-11 04:52:43,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:43,425 INFO L432 NwaCegarLoop]: 1616 mSDtfsCounter, 1504 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1692 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:43,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1692 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:52:43,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2024-10-11 04:52:43,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1812. [2024-10-11 04:52:43,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1812 states, 1810 states have (on average 1.787292817679558) internal successors, (3235), 1811 states have internal predecessors, (3235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:43,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1812 states and 3235 transitions. [2024-10-11 04:52:43,463 INFO L78 Accepts]: Start accepts. Automaton has 1812 states and 3235 transitions. Word has length 66 [2024-10-11 04:52:43,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:43,464 INFO L471 AbstractCegarLoop]: Abstraction has 1812 states and 3235 transitions. [2024-10-11 04:52:43,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:43,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1812 states and 3235 transitions. [2024-10-11 04:52:43,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:52:43,465 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:43,465 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:43,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 04:52:43,465 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:43,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:43,466 INFO L85 PathProgramCache]: Analyzing trace with hash -103927908, now seen corresponding path program 1 times [2024-10-11 04:52:43,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:43,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315571604] [2024-10-11 04:52:43,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:43,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:43,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:52:43,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:43,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315571604] [2024-10-11 04:52:43,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315571604] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:43,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:43,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:52:43,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299787104] [2024-10-11 04:52:43,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:43,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:52:43,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:43,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:52:43,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:43,562 INFO L87 Difference]: Start difference. First operand 1812 states and 3235 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:43,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:43,611 INFO L93 Difference]: Finished difference Result 2310 states and 4015 transitions. [2024-10-11 04:52:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:52:43,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-11 04:52:43,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:43,617 INFO L225 Difference]: With dead ends: 2310 [2024-10-11 04:52:43,617 INFO L226 Difference]: Without dead ends: 2049 [2024-10-11 04:52:43,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:43,619 INFO L432 NwaCegarLoop]: 1618 mSDtfsCounter, 1502 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:43,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1698 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:52:43,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2049 states. [2024-10-11 04:52:43,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2049 to 2047. [2024-10-11 04:52:43,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2047 states, 2045 states have (on average 1.758924205378973) internal successors, (3597), 2046 states have internal predecessors, (3597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:43,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2047 states to 2047 states and 3597 transitions. [2024-10-11 04:52:43,655 INFO L78 Accepts]: Start accepts. Automaton has 2047 states and 3597 transitions. Word has length 66 [2024-10-11 04:52:43,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:43,656 INFO L471 AbstractCegarLoop]: Abstraction has 2047 states and 3597 transitions. [2024-10-11 04:52:43,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:43,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2047 states and 3597 transitions. [2024-10-11 04:52:43,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:52:43,656 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:43,656 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:43,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 04:52:43,657 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:43,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:43,657 INFO L85 PathProgramCache]: Analyzing trace with hash -332567140, now seen corresponding path program 1 times [2024-10-11 04:52:43,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:43,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868363832] [2024-10-11 04:52:43,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:43,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:43,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:52:43,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:43,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868363832] [2024-10-11 04:52:43,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868363832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:43,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:43,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:52:43,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108985756] [2024-10-11 04:52:43,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:43,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:52:43,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:43,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:52:43,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:43,713 INFO L87 Difference]: Start difference. First operand 2047 states and 3597 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:43,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:43,763 INFO L93 Difference]: Finished difference Result 2991 states and 5059 transitions. [2024-10-11 04:52:43,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:52:43,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-11 04:52:43,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:43,771 INFO L225 Difference]: With dead ends: 2991 [2024-10-11 04:52:43,771 INFO L226 Difference]: Without dead ends: 2495 [2024-10-11 04:52:43,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:43,773 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 1498 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:43,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1694 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:52:43,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2024-10-11 04:52:43,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 2493. [2024-10-11 04:52:43,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2493 states, 2491 states have (on average 1.7153753512645524) internal successors, (4273), 2492 states have internal predecessors, (4273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:43,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 4273 transitions. [2024-10-11 04:52:43,814 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 4273 transitions. Word has length 66 [2024-10-11 04:52:43,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:43,814 INFO L471 AbstractCegarLoop]: Abstraction has 2493 states and 4273 transitions. [2024-10-11 04:52:43,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:43,815 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 4273 transitions. [2024-10-11 04:52:43,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:52:43,818 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:43,818 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:43,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 04:52:43,818 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:43,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:43,821 INFO L85 PathProgramCache]: Analyzing trace with hash -958223204, now seen corresponding path program 1 times [2024-10-11 04:52:43,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:43,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936395714] [2024-10-11 04:52:43,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:43,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:43,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:52:43,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:43,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936395714] [2024-10-11 04:52:43,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936395714] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:43,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:43,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:52:43,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200830452] [2024-10-11 04:52:43,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:43,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:52:43,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:43,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:52:43,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:43,874 INFO L87 Difference]: Start difference. First operand 2493 states and 4273 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:43,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:43,967 INFO L93 Difference]: Finished difference Result 4281 states and 7003 transitions. [2024-10-11 04:52:43,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:52:43,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-11 04:52:43,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:43,986 INFO L225 Difference]: With dead ends: 4281 [2024-10-11 04:52:43,986 INFO L226 Difference]: Without dead ends: 3339 [2024-10-11 04:52:43,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:43,994 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 1496 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:43,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1696 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:52:44,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3339 states. [2024-10-11 04:52:44,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3339 to 3337. [2024-10-11 04:52:44,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3337 states, 3335 states have (on average 1.657871064467766) internal successors, (5529), 3336 states have internal predecessors, (5529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:44,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3337 states to 3337 states and 5529 transitions. [2024-10-11 04:52:44,082 INFO L78 Accepts]: Start accepts. Automaton has 3337 states and 5529 transitions. Word has length 66 [2024-10-11 04:52:44,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:44,082 INFO L471 AbstractCegarLoop]: Abstraction has 3337 states and 5529 transitions. [2024-10-11 04:52:44,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:44,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3337 states and 5529 transitions. [2024-10-11 04:52:44,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:52:44,083 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:44,084 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:44,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 04:52:44,084 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:44,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:44,084 INFO L85 PathProgramCache]: Analyzing trace with hash -69489764, now seen corresponding path program 1 times [2024-10-11 04:52:44,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:44,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508789004] [2024-10-11 04:52:44,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:44,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:44,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:52:44,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:44,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508789004] [2024-10-11 04:52:44,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508789004] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:44,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:44,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:52:44,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939902428] [2024-10-11 04:52:44,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:44,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:52:44,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:44,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:52:44,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:44,140 INFO L87 Difference]: Start difference. First operand 3337 states and 5529 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:44,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:44,213 INFO L93 Difference]: Finished difference Result 6717 states and 10603 transitions. [2024-10-11 04:52:44,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:52:44,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-11 04:52:44,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:44,228 INFO L225 Difference]: With dead ends: 6717 [2024-10-11 04:52:44,228 INFO L226 Difference]: Without dead ends: 4931 [2024-10-11 04:52:44,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:44,232 INFO L432 NwaCegarLoop]: 1602 mSDtfsCounter, 1494 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1698 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:44,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1698 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:52:44,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4931 states. [2024-10-11 04:52:44,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4931 to 4929. [2024-10-11 04:52:44,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4929 states, 4927 states have (on average 1.5930586563831945) internal successors, (7849), 4928 states have internal predecessors, (7849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:44,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4929 states to 4929 states and 7849 transitions. [2024-10-11 04:52:44,345 INFO L78 Accepts]: Start accepts. Automaton has 4929 states and 7849 transitions. Word has length 66 [2024-10-11 04:52:44,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:44,345 INFO L471 AbstractCegarLoop]: Abstraction has 4929 states and 7849 transitions. [2024-10-11 04:52:44,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:44,346 INFO L276 IsEmpty]: Start isEmpty. Operand 4929 states and 7849 transitions. [2024-10-11 04:52:44,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 04:52:44,346 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:44,346 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:44,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 04:52:44,347 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:44,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:44,347 INFO L85 PathProgramCache]: Analyzing trace with hash -372511076, now seen corresponding path program 1 times [2024-10-11 04:52:44,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:44,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222292836] [2024-10-11 04:52:44,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:44,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:52:44,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:44,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222292836] [2024-10-11 04:52:44,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222292836] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:44,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:44,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:52:44,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138470543] [2024-10-11 04:52:44,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:44,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:52:44,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:44,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:52:44,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:44,405 INFO L87 Difference]: Start difference. First operand 4929 states and 7849 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:44,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:44,625 INFO L93 Difference]: Finished difference Result 11301 states and 17227 transitions. [2024-10-11 04:52:44,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:52:44,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-10-11 04:52:44,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:44,641 INFO L225 Difference]: With dead ends: 11301 [2024-10-11 04:52:44,642 INFO L226 Difference]: Without dead ends: 7923 [2024-10-11 04:52:44,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:52:44,651 INFO L432 NwaCegarLoop]: 1616 mSDtfsCounter, 1500 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:44,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1700 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:52:44,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7923 states. [2024-10-11 04:52:44,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7923 to 7921. [2024-10-11 04:52:44,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7921 states, 7919 states have (on average 1.5286020962242708) internal successors, (12105), 7920 states have internal predecessors, (12105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:44,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7921 states to 7921 states and 12105 transitions. [2024-10-11 04:52:44,981 INFO L78 Accepts]: Start accepts. Automaton has 7921 states and 12105 transitions. Word has length 66 [2024-10-11 04:52:44,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:44,981 INFO L471 AbstractCegarLoop]: Abstraction has 7921 states and 12105 transitions. [2024-10-11 04:52:44,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:44,981 INFO L276 IsEmpty]: Start isEmpty. Operand 7921 states and 12105 transitions. [2024-10-11 04:52:44,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:52:44,983 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:44,983 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:44,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 04:52:44,984 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:44,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:44,984 INFO L85 PathProgramCache]: Analyzing trace with hash -889914948, now seen corresponding path program 1 times [2024-10-11 04:52:44,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:44,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923342298] [2024-10-11 04:52:44,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:44,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:45,137 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 04:52:45,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:45,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923342298] [2024-10-11 04:52:45,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923342298] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:45,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:45,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:52:45,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182746511] [2024-10-11 04:52:45,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:45,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:52:45,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:45,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:52:45,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:52:45,139 INFO L87 Difference]: Start difference. First operand 7921 states and 12105 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:45,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:45,877 INFO L93 Difference]: Finished difference Result 45567 states and 66928 transitions. [2024-10-11 04:52:45,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:52:45,878 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 04:52:45,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:45,951 INFO L225 Difference]: With dead ends: 45567 [2024-10-11 04:52:45,952 INFO L226 Difference]: Without dead ends: 41085 [2024-10-11 04:52:45,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:52:45,964 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 8059 mSDsluCounter, 2361 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8059 SdHoareTripleChecker+Valid, 3989 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:45,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8059 Valid, 3989 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:52:45,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41085 states. [2024-10-11 04:52:46,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41085 to 13361. [2024-10-11 04:52:46,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13361 states, 13359 states have (on average 1.493000973126731) internal successors, (19945), 13360 states have internal predecessors, (19945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:46,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13361 states to 13361 states and 19945 transitions. [2024-10-11 04:52:46,583 INFO L78 Accepts]: Start accepts. Automaton has 13361 states and 19945 transitions. Word has length 86 [2024-10-11 04:52:46,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:46,583 INFO L471 AbstractCegarLoop]: Abstraction has 13361 states and 19945 transitions. [2024-10-11 04:52:46,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:46,584 INFO L276 IsEmpty]: Start isEmpty. Operand 13361 states and 19945 transitions. [2024-10-11 04:52:46,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:52:46,588 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:46,588 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:46,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 04:52:46,588 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:46,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:46,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1300301636, now seen corresponding path program 1 times [2024-10-11 04:52:46,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:46,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781307100] [2024-10-11 04:52:46,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:46,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:46,789 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 04:52:46,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:46,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781307100] [2024-10-11 04:52:46,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781307100] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:46,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:46,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:52:46,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92670856] [2024-10-11 04:52:46,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:46,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:52:46,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:46,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:52:46,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:52:46,791 INFO L87 Difference]: Start difference. First operand 13361 states and 19945 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:48,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:48,103 INFO L93 Difference]: Finished difference Result 51935 states and 76144 transitions. [2024-10-11 04:52:48,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:52:48,104 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 04:52:48,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:48,192 INFO L225 Difference]: With dead ends: 51935 [2024-10-11 04:52:48,192 INFO L226 Difference]: Without dead ends: 45565 [2024-10-11 04:52:48,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:52:48,221 INFO L432 NwaCegarLoop]: 1627 mSDtfsCounter, 8063 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8063 SdHoareTripleChecker+Valid, 3935 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:48,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8063 Valid, 3935 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:52:48,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45565 states. [2024-10-11 04:52:49,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45565 to 21969. [2024-10-11 04:52:49,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21969 states, 21967 states have (on average 1.471707561342013) internal successors, (32329), 21968 states have internal predecessors, (32329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:49,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21969 states to 21969 states and 32329 transitions. [2024-10-11 04:52:49,370 INFO L78 Accepts]: Start accepts. Automaton has 21969 states and 32329 transitions. Word has length 86 [2024-10-11 04:52:49,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:49,370 INFO L471 AbstractCegarLoop]: Abstraction has 21969 states and 32329 transitions. [2024-10-11 04:52:49,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:49,371 INFO L276 IsEmpty]: Start isEmpty. Operand 21969 states and 32329 transitions. [2024-10-11 04:52:49,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:52:49,375 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:49,375 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:49,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 04:52:49,376 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:49,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:49,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1528940868, now seen corresponding path program 1 times [2024-10-11 04:52:49,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:49,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032498949] [2024-10-11 04:52:49,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:49,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:49,616 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 04:52:49,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:49,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032498949] [2024-10-11 04:52:49,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032498949] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:49,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:49,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:52:49,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374663081] [2024-10-11 04:52:49,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:49,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:52:49,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:49,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:52:49,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:52:49,621 INFO L87 Difference]: Start difference. First operand 21969 states and 32329 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:50,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:50,971 INFO L93 Difference]: Finished difference Result 58303 states and 85328 transitions. [2024-10-11 04:52:50,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:52:50,971 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 04:52:50,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:51,067 INFO L225 Difference]: With dead ends: 58303 [2024-10-11 04:52:51,067 INFO L226 Difference]: Without dead ends: 51933 [2024-10-11 04:52:51,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:52:51,092 INFO L432 NwaCegarLoop]: 1625 mSDtfsCounter, 8103 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8103 SdHoareTripleChecker+Valid, 3954 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:51,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8103 Valid, 3954 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:52:51,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51933 states. [2024-10-11 04:52:51,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51933 to 28337. [2024-10-11 04:52:51,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28337 states, 28335 states have (on average 1.4650785247926592) internal successors, (41513), 28336 states have internal predecessors, (41513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:51,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28337 states to 28337 states and 41513 transitions. [2024-10-11 04:52:51,858 INFO L78 Accepts]: Start accepts. Automaton has 28337 states and 41513 transitions. Word has length 86 [2024-10-11 04:52:51,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:51,858 INFO L471 AbstractCegarLoop]: Abstraction has 28337 states and 41513 transitions. [2024-10-11 04:52:51,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:51,858 INFO L276 IsEmpty]: Start isEmpty. Operand 28337 states and 41513 transitions. [2024-10-11 04:52:51,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:52:51,861 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:51,861 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:51,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 04:52:51,862 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:51,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:51,862 INFO L85 PathProgramCache]: Analyzing trace with hash 2140370364, now seen corresponding path program 1 times [2024-10-11 04:52:51,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:51,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79971107] [2024-10-11 04:52:51,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:51,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:52,001 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 04:52:52,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:52,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79971107] [2024-10-11 04:52:52,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79971107] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:52,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:52,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:52:52,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740134926] [2024-10-11 04:52:52,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:52,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:52:52,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:52,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:52:52,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:52:52,004 INFO L87 Difference]: Start difference. First operand 28337 states and 41513 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 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) [2024-10-11 04:52:53,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:53,429 INFO L93 Difference]: Finished difference Result 64671 states and 94512 transitions. [2024-10-11 04:52:53,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:52:53,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 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 86 [2024-10-11 04:52:53,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:53,525 INFO L225 Difference]: With dead ends: 64671 [2024-10-11 04:52:53,525 INFO L226 Difference]: Without dead ends: 58301 [2024-10-11 04:52:53,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:52:53,547 INFO L432 NwaCegarLoop]: 1623 mSDtfsCounter, 8157 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8157 SdHoareTripleChecker+Valid, 3919 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:53,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8157 Valid, 3919 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:52:53,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58301 states. [2024-10-11 04:52:55,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58301 to 34705. [2024-10-11 04:52:55,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34705 states, 34703 states have (on average 1.4608823444658963) internal successors, (50697), 34704 states have internal predecessors, (50697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:55,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34705 states to 34705 states and 50697 transitions. [2024-10-11 04:52:55,342 INFO L78 Accepts]: Start accepts. Automaton has 34705 states and 50697 transitions. Word has length 86 [2024-10-11 04:52:55,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:55,343 INFO L471 AbstractCegarLoop]: Abstraction has 34705 states and 50697 transitions. [2024-10-11 04:52:55,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 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) [2024-10-11 04:52:55,343 INFO L276 IsEmpty]: Start isEmpty. Operand 34705 states and 50697 transitions. [2024-10-11 04:52:55,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:52:55,349 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:55,349 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:55,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 04:52:55,349 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:55,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:55,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1265863492, now seen corresponding path program 1 times [2024-10-11 04:52:55,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:55,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081059612] [2024-10-11 04:52:55,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:55,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:55,581 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 04:52:55,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:55,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081059612] [2024-10-11 04:52:55,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081059612] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:55,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:55,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:52:55,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938183188] [2024-10-11 04:52:55,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:55,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:52:55,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:55,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:52:55,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:52:55,583 INFO L87 Difference]: Start difference. First operand 34705 states and 50697 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:57,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:52:57,234 INFO L93 Difference]: Finished difference Result 71039 states and 103696 transitions. [2024-10-11 04:52:57,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:52:57,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 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 86 [2024-10-11 04:52:57,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:52:57,333 INFO L225 Difference]: With dead ends: 71039 [2024-10-11 04:52:57,333 INFO L226 Difference]: Without dead ends: 64669 [2024-10-11 04:52:57,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:52:57,354 INFO L432 NwaCegarLoop]: 1623 mSDtfsCounter, 8073 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8073 SdHoareTripleChecker+Valid, 3975 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:52:57,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8073 Valid, 3975 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:52:57,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64669 states. [2024-10-11 04:52:58,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64669 to 41073. [2024-10-11 04:52:58,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41073 states, 41071 states have (on average 1.4579873876944802) internal successors, (59881), 41072 states have internal predecessors, (59881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:59,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41073 states to 41073 states and 59881 transitions. [2024-10-11 04:52:59,009 INFO L78 Accepts]: Start accepts. Automaton has 41073 states and 59881 transitions. Word has length 86 [2024-10-11 04:52:59,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:52:59,009 INFO L471 AbstractCegarLoop]: Abstraction has 41073 states and 59881 transitions. [2024-10-11 04:52:59,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:52:59,010 INFO L276 IsEmpty]: Start isEmpty. Operand 41073 states and 59881 transitions. [2024-10-11 04:52:59,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 04:52:59,014 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:52:59,014 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:52:59,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 04:52:59,014 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:52:59,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:52:59,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1568884804, now seen corresponding path program 1 times [2024-10-11 04:52:59,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:52:59,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152478339] [2024-10-11 04:52:59,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:52:59,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:52:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:52:59,146 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 04:52:59,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:52:59,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152478339] [2024-10-11 04:52:59,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152478339] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:52:59,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:52:59,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 04:52:59,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104142877] [2024-10-11 04:52:59,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:52:59,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:52:59,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:52:59,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:52:59,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:52:59,148 INFO L87 Difference]: Start difference. First operand 41073 states and 59881 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:01,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:01,241 INFO L93 Difference]: Finished difference Result 77407 states and 112880 transitions. [2024-10-11 04:53:01,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 04:53:01,242 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-10-11 04:53:01,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:01,334 INFO L225 Difference]: With dead ends: 77407 [2024-10-11 04:53:01,335 INFO L226 Difference]: Without dead ends: 71037 [2024-10-11 04:53:01,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-10-11 04:53:01,356 INFO L432 NwaCegarLoop]: 1622 mSDtfsCounter, 8010 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8010 SdHoareTripleChecker+Valid, 4111 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:01,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8010 Valid, 4111 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 04:53:01,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71037 states. [2024-10-11 04:53:02,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71037 to 47441. [2024-10-11 04:53:02,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47441 states, 47439 states have (on average 1.455869643120639) internal successors, (69065), 47440 states have internal predecessors, (69065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:02,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47441 states to 47441 states and 69065 transitions. [2024-10-11 04:53:02,997 INFO L78 Accepts]: Start accepts. Automaton has 47441 states and 69065 transitions. Word has length 86 [2024-10-11 04:53:02,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:02,997 INFO L471 AbstractCegarLoop]: Abstraction has 47441 states and 69065 transitions. [2024-10-11 04:53:02,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:02,998 INFO L276 IsEmpty]: Start isEmpty. Operand 47441 states and 69065 transitions. [2024-10-11 04:53:03,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 04:53:03,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:03,003 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:03,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 04:53:03,004 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:03,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:03,004 INFO L85 PathProgramCache]: Analyzing trace with hash 781458360, now seen corresponding path program 1 times [2024-10-11 04:53:03,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:03,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547033659] [2024-10-11 04:53:03,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:03,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:03,114 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:03,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:03,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547033659] [2024-10-11 04:53:03,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547033659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:03,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:03,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:03,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064312641] [2024-10-11 04:53:03,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:03,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:03,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:03,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:03,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:03,118 INFO L87 Difference]: Start difference. First operand 47441 states and 69065 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:04,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:04,823 INFO L93 Difference]: Finished difference Result 93333 states and 135307 transitions. [2024-10-11 04:53:04,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:04,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-10-11 04:53:04,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:04,899 INFO L225 Difference]: With dead ends: 93333 [2024-10-11 04:53:04,899 INFO L226 Difference]: Without dead ends: 47443 [2024-10-11 04:53:04,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:04,923 INFO L432 NwaCegarLoop]: 1598 mSDtfsCounter, 53 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3143 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:04,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3143 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:04,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47443 states. [2024-10-11 04:53:06,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47443 to 47441. [2024-10-11 04:53:06,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47441 states, 47439 states have (on average 1.4413668079006725) internal successors, (68377), 47440 states have internal predecessors, (68377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:06,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47441 states to 47441 states and 68377 transitions. [2024-10-11 04:53:06,423 INFO L78 Accepts]: Start accepts. Automaton has 47441 states and 68377 transitions. Word has length 87 [2024-10-11 04:53:06,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:06,423 INFO L471 AbstractCegarLoop]: Abstraction has 47441 states and 68377 transitions. [2024-10-11 04:53:06,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:06,423 INFO L276 IsEmpty]: Start isEmpty. Operand 47441 states and 68377 transitions. [2024-10-11 04:53:06,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-11 04:53:06,426 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:06,426 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:06,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 04:53:06,426 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:06,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:06,427 INFO L85 PathProgramCache]: Analyzing trace with hash 114924484, now seen corresponding path program 1 times [2024-10-11 04:53:06,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:06,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115696656] [2024-10-11 04:53:06,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:06,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:06,507 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:06,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:06,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115696656] [2024-10-11 04:53:06,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115696656] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:06,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:06,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:06,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053802599] [2024-10-11 04:53:06,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:06,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:06,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:06,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:06,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:06,509 INFO L87 Difference]: Start difference. First operand 47441 states and 68377 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:07,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:07,144 INFO L93 Difference]: Finished difference Result 64265 states and 92640 transitions. [2024-10-11 04:53:07,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:07,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-10-11 04:53:07,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:07,172 INFO L225 Difference]: With dead ends: 64265 [2024-10-11 04:53:07,173 INFO L226 Difference]: Without dead ends: 18375 [2024-10-11 04:53:07,203 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 [2024-10-11 04:53:07,204 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 47 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3140 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:07,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3140 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:07,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18375 states. [2024-10-11 04:53:07,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18375 to 18368. [2024-10-11 04:53:07,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18368 states, 18366 states have (on average 1.4613960579331373) internal successors, (26840), 18367 states have internal predecessors, (26840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:08,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18368 states to 18368 states and 26840 transitions. [2024-10-11 04:53:08,022 INFO L78 Accepts]: Start accepts. Automaton has 18368 states and 26840 transitions. Word has length 88 [2024-10-11 04:53:08,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:08,023 INFO L471 AbstractCegarLoop]: Abstraction has 18368 states and 26840 transitions. [2024-10-11 04:53:08,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:08,023 INFO L276 IsEmpty]: Start isEmpty. Operand 18368 states and 26840 transitions. [2024-10-11 04:53:08,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-11 04:53:08,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:08,024 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:08,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 04:53:08,025 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:08,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:08,025 INFO L85 PathProgramCache]: Analyzing trace with hash -418898426, now seen corresponding path program 1 times [2024-10-11 04:53:08,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:08,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145180404] [2024-10-11 04:53:08,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:08,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:08,091 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:08,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:08,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145180404] [2024-10-11 04:53:08,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145180404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:08,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:08,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:08,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768063185] [2024-10-11 04:53:08,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:08,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:08,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:08,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:08,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:08,093 INFO L87 Difference]: Start difference. First operand 18368 states and 26840 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:08,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:08,286 INFO L93 Difference]: Finished difference Result 26772 states and 38842 transitions. [2024-10-11 04:53:08,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:08,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-10-11 04:53:08,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:08,298 INFO L225 Difference]: With dead ends: 26772 [2024-10-11 04:53:08,299 INFO L226 Difference]: Without dead ends: 9970 [2024-10-11 04:53:08,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:08,309 INFO L432 NwaCegarLoop]: 1590 mSDtfsCounter, 49 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3119 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:08,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3119 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:08,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9970 states. [2024-10-11 04:53:08,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9970 to 9968. [2024-10-11 04:53:08,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9968 states, 9966 states have (on average 1.4770218743728678) internal successors, (14720), 9967 states have internal predecessors, (14720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:08,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9968 states to 9968 states and 14720 transitions. [2024-10-11 04:53:08,652 INFO L78 Accepts]: Start accepts. Automaton has 9968 states and 14720 transitions. Word has length 89 [2024-10-11 04:53:08,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:08,653 INFO L471 AbstractCegarLoop]: Abstraction has 9968 states and 14720 transitions. [2024-10-11 04:53:08,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:08,653 INFO L276 IsEmpty]: Start isEmpty. Operand 9968 states and 14720 transitions. [2024-10-11 04:53:08,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-11 04:53:08,654 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:08,655 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:08,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 04:53:08,655 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:08,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:08,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1396517332, now seen corresponding path program 1 times [2024-10-11 04:53:08,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:08,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122265212] [2024-10-11 04:53:08,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:08,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:08,727 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:08,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:08,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122265212] [2024-10-11 04:53:08,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122265212] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:08,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:08,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:08,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281571629] [2024-10-11 04:53:08,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:08,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:08,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:08,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:08,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:08,729 INFO L87 Difference]: Start difference. First operand 9968 states and 14720 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:08,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:08,839 INFO L93 Difference]: Finished difference Result 14172 states and 20662 transitions. [2024-10-11 04:53:08,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:08,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-10-11 04:53:08,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:08,850 INFO L225 Difference]: With dead ends: 14172 [2024-10-11 04:53:08,850 INFO L226 Difference]: Without dead ends: 5770 [2024-10-11 04:53:08,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:08,858 INFO L432 NwaCegarLoop]: 1583 mSDtfsCounter, 46 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:08,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 3104 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:08,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5770 states. [2024-10-11 04:53:08,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5770 to 5768. [2024-10-11 04:53:08,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 5766 states have (on average 1.5123135622615331) internal successors, (8720), 5767 states have internal predecessors, (8720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:08,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 8720 transitions. [2024-10-11 04:53:08,994 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 8720 transitions. Word has length 91 [2024-10-11 04:53:08,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:08,994 INFO L471 AbstractCegarLoop]: Abstraction has 5768 states and 8720 transitions. [2024-10-11 04:53:08,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:08,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 8720 transitions. [2024-10-11 04:53:08,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-11 04:53:08,995 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:08,996 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:08,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 04:53:08,996 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:08,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:08,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1655112071, now seen corresponding path program 1 times [2024-10-11 04:53:08,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:08,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182675377] [2024-10-11 04:53:08,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:08,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:09,307 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:09,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:09,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182675377] [2024-10-11 04:53:09,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182675377] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:09,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:09,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:09,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638343949] [2024-10-11 04:53:09,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:09,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 04:53:09,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:09,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 04:53:09,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 04:53:09,311 INFO L87 Difference]: Start difference. First operand 5768 states and 8720 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:14,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:14,224 INFO L93 Difference]: Finished difference Result 9525 states and 15610 transitions. [2024-10-11 04:53:14,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 04:53:14,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-10-11 04:53:14,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:14,238 INFO L225 Difference]: With dead ends: 9525 [2024-10-11 04:53:14,238 INFO L226 Difference]: Without dead ends: 8021 [2024-10-11 04:53:14,240 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 [2024-10-11 04:53:14,241 INFO L432 NwaCegarLoop]: 811 mSDtfsCounter, 2400 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 4808 mSolverCounterSat, 1138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2400 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 5946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1138 IncrementalHoareTripleChecker+Valid, 4808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:14,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2400 Valid, 831 Invalid, 5946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1138 Valid, 4808 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-10-11 04:53:14,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8021 states. [2024-10-11 04:53:14,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8021 to 8021. [2024-10-11 04:53:14,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8021 states, 8019 states have (on average 1.4102755954607806) internal successors, (11309), 8020 states have internal predecessors, (11309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:14,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8021 states to 8021 states and 11309 transitions. [2024-10-11 04:53:14,432 INFO L78 Accepts]: Start accepts. Automaton has 8021 states and 11309 transitions. Word has length 92 [2024-10-11 04:53:14,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:14,433 INFO L471 AbstractCegarLoop]: Abstraction has 8021 states and 11309 transitions. [2024-10-11 04:53:14,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:14,433 INFO L276 IsEmpty]: Start isEmpty. Operand 8021 states and 11309 transitions. [2024-10-11 04:53:14,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-11 04:53:14,438 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:14,438 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:14,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 04:53:14,439 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:14,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:14,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1276371166, now seen corresponding path program 1 times [2024-10-11 04:53:14,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:14,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648496459] [2024-10-11 04:53:14,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:14,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:14,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:14,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648496459] [2024-10-11 04:53:14,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648496459] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:14,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:14,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:14,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945626335] [2024-10-11 04:53:14,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:14,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:14,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:14,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:14,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:14,658 INFO L87 Difference]: Start difference. First operand 8021 states and 11309 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:14,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:14,847 INFO L93 Difference]: Finished difference Result 10125 states and 14251 transitions. [2024-10-11 04:53:14,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:14,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-10-11 04:53:14,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:14,856 INFO L225 Difference]: With dead ends: 10125 [2024-10-11 04:53:14,856 INFO L226 Difference]: Without dead ends: 5923 [2024-10-11 04:53:14,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:14,861 INFO L432 NwaCegarLoop]: 1576 mSDtfsCounter, 43 mSDsluCounter, 1513 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:14,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3089 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:14,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5923 states. [2024-10-11 04:53:14,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5923 to 5921. [2024-10-11 04:53:14,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5921 states, 5919 states have (on average 1.4088528467646562) internal successors, (8339), 5920 states have internal predecessors, (8339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:14,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5921 states to 5921 states and 8339 transitions. [2024-10-11 04:53:14,970 INFO L78 Accepts]: Start accepts. Automaton has 5921 states and 8339 transitions. Word has length 93 [2024-10-11 04:53:14,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:14,970 INFO L471 AbstractCegarLoop]: Abstraction has 5921 states and 8339 transitions. [2024-10-11 04:53:14,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:14,970 INFO L276 IsEmpty]: Start isEmpty. Operand 5921 states and 8339 transitions. [2024-10-11 04:53:14,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-11 04:53:14,971 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:14,972 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:14,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 04:53:14,972 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:14,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:14,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1865380126, now seen corresponding path program 1 times [2024-10-11 04:53:14,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:14,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246713553] [2024-10-11 04:53:14,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:14,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:15,045 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-11 04:53:15,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:15,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246713553] [2024-10-11 04:53:15,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246713553] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:15,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:15,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 04:53:15,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737209606] [2024-10-11 04:53:15,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:15,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:15,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:15,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:15,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:15,048 INFO L87 Difference]: Start difference. First operand 5921 states and 8339 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:17,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:17,676 INFO L93 Difference]: Finished difference Result 10429 states and 15722 transitions. [2024-10-11 04:53:17,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:17,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-10-11 04:53:17,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:17,688 INFO L225 Difference]: With dead ends: 10429 [2024-10-11 04:53:17,689 INFO L226 Difference]: Without dead ends: 7423 [2024-10-11 04:53:17,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:17,693 INFO L432 NwaCegarLoop]: 584 mSDtfsCounter, 846 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:17,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 591 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-11 04:53:17,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7423 states. [2024-10-11 04:53:17,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7423 to 7423. [2024-10-11 04:53:17,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7423 states, 7421 states have (on average 1.38269774962943) internal successors, (10261), 7422 states have internal predecessors, (10261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:17,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7423 states to 7423 states and 10261 transitions. [2024-10-11 04:53:17,824 INFO L78 Accepts]: Start accepts. Automaton has 7423 states and 10261 transitions. Word has length 94 [2024-10-11 04:53:17,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:17,824 INFO L471 AbstractCegarLoop]: Abstraction has 7423 states and 10261 transitions. [2024-10-11 04:53:17,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:17,825 INFO L276 IsEmpty]: Start isEmpty. Operand 7423 states and 10261 transitions. [2024-10-11 04:53:17,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 04:53:17,826 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:17,826 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:17,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-11 04:53:17,826 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:17,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:17,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1285169680, now seen corresponding path program 1 times [2024-10-11 04:53:17,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:17,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625094752] [2024-10-11 04:53:17,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:17,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:17,916 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:17,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:17,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625094752] [2024-10-11 04:53:17,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625094752] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 04:53:17,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 04:53:17,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 04:53:17,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594098159] [2024-10-11 04:53:17,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 04:53:17,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 04:53:17,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:17,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 04:53:17,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:17,918 INFO L87 Difference]: Start difference. First operand 7423 states and 10261 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:18,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:18,012 INFO L93 Difference]: Finished difference Result 8477 states and 11718 transitions. [2024-10-11 04:53:18,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 04:53:18,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-11 04:53:18,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:18,023 INFO L225 Difference]: With dead ends: 8477 [2024-10-11 04:53:18,023 INFO L226 Difference]: Without dead ends: 6375 [2024-10-11 04:53:18,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 04:53:18,030 INFO L432 NwaCegarLoop]: 1569 mSDtfsCounter, 40 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3074 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:18,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3074 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:18,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6375 states. [2024-10-11 04:53:18,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6375 to 6373. [2024-10-11 04:53:18,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6373 states, 6371 states have (on average 1.3798461779940354) internal successors, (8791), 6372 states have internal predecessors, (8791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:18,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6373 states to 6373 states and 8791 transitions. [2024-10-11 04:53:18,133 INFO L78 Accepts]: Start accepts. Automaton has 6373 states and 8791 transitions. Word has length 95 [2024-10-11 04:53:18,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:18,134 INFO L471 AbstractCegarLoop]: Abstraction has 6373 states and 8791 transitions. [2024-10-11 04:53:18,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:18,134 INFO L276 IsEmpty]: Start isEmpty. Operand 6373 states and 8791 transitions. [2024-10-11 04:53:18,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-11 04:53:18,138 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:18,139 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:18,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-11 04:53:18,139 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:18,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:18,139 INFO L85 PathProgramCache]: Analyzing trace with hash 865289790, now seen corresponding path program 1 times [2024-10-11 04:53:18,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:18,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641359410] [2024-10-11 04:53:18,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:18,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:18,239 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 04:53:18,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:18,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641359410] [2024-10-11 04:53:18,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641359410] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:53:18,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228211423] [2024-10-11 04:53:18,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:18,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:53:18,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:53:18,242 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:53:18,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 04:53:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:18,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 04:53:18,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:53:18,511 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 04:53:18,511 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:53:18,848 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 04:53:18,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228211423] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:53:18,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:53:18,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 8 [2024-10-11 04:53:18,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121073461] [2024-10-11 04:53:18,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:53:18,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 04:53:18,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:18,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 04:53:18,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-10-11 04:53:18,850 INFO L87 Difference]: Start difference. First operand 6373 states and 8791 transitions. Second operand has 8 states, 8 states have (on average 31.125) internal successors, (249), 8 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:19,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:19,049 INFO L93 Difference]: Finished difference Result 8909 states and 12190 transitions. [2024-10-11 04:53:19,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 04:53:19,049 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 31.125) internal successors, (249), 8 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-10-11 04:53:19,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:19,057 INFO L225 Difference]: With dead ends: 8909 [2024-10-11 04:53:19,057 INFO L226 Difference]: Without dead ends: 7857 [2024-10-11 04:53:19,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=38, Unknown=0, NotChecked=0, Total=72 [2024-10-11 04:53:19,059 INFO L432 NwaCegarLoop]: 1553 mSDtfsCounter, 3021 mSDsluCounter, 1839 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3021 SdHoareTripleChecker+Valid, 3392 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:19,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3021 Valid, 3392 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 04:53:19,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7857 states. [2024-10-11 04:53:19,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7857 to 7780. [2024-10-11 04:53:19,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7780 states, 7778 states have (on average 1.3605039856004115) internal successors, (10582), 7779 states have internal predecessors, (10582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:19,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7780 states to 7780 states and 10582 transitions. [2024-10-11 04:53:19,198 INFO L78 Accepts]: Start accepts. Automaton has 7780 states and 10582 transitions. Word has length 97 [2024-10-11 04:53:19,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:19,199 INFO L471 AbstractCegarLoop]: Abstraction has 7780 states and 10582 transitions. [2024-10-11 04:53:19,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 31.125) internal successors, (249), 8 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:19,199 INFO L276 IsEmpty]: Start isEmpty. Operand 7780 states and 10582 transitions. [2024-10-11 04:53:19,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-11 04:53:19,200 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:19,200 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:19,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 04:53:19,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-10-11 04:53:19,401 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:19,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:19,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1164140212, now seen corresponding path program 1 times [2024-10-11 04:53:19,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:19,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055798274] [2024-10-11 04:53:19,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:19,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:20,864 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:20,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:20,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055798274] [2024-10-11 04:53:20,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055798274] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:53:20,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647109673] [2024-10-11 04:53:20,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:20,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:53:20,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:53:20,869 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:53:20,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 04:53:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:21,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 04:53:21,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:53:21,518 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:21,518 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:53:22,309 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:22,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647109673] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:53:22,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:53:22,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2024-10-11 04:53:22,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515716715] [2024-10-11 04:53:22,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:53:22,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-11 04:53:22,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:22,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-11 04:53:22,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2024-10-11 04:53:22,311 INFO L87 Difference]: Start difference. First operand 7780 states and 10582 transitions. Second operand has 26 states, 26 states have (on average 9.5) internal successors, (247), 25 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:23,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:23,220 INFO L93 Difference]: Finished difference Result 12544 states and 16856 transitions. [2024-10-11 04:53:23,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 04:53:23,221 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.5) internal successors, (247), 25 states have internal predecessors, (247), 0 states have call successors, (0), 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 98 [2024-10-11 04:53:23,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:23,236 INFO L225 Difference]: With dead ends: 12544 [2024-10-11 04:53:23,237 INFO L226 Difference]: Without dead ends: 10268 [2024-10-11 04:53:23,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=287, Invalid=1045, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 04:53:23,241 INFO L432 NwaCegarLoop]: 1521 mSDtfsCounter, 18573 mSDsluCounter, 4868 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18573 SdHoareTripleChecker+Valid, 6389 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:23,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18573 Valid, 6389 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 04:53:23,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10268 states. [2024-10-11 04:53:23,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10268 to 10206. [2024-10-11 04:53:23,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10206 states, 10204 states have (on average 1.3416307330458643) internal successors, (13690), 10205 states have internal predecessors, (13690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:23,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10206 states to 10206 states and 13690 transitions. [2024-10-11 04:53:23,422 INFO L78 Accepts]: Start accepts. Automaton has 10206 states and 13690 transitions. Word has length 98 [2024-10-11 04:53:23,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:23,422 INFO L471 AbstractCegarLoop]: Abstraction has 10206 states and 13690 transitions. [2024-10-11 04:53:23,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.5) internal successors, (247), 25 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:23,422 INFO L276 IsEmpty]: Start isEmpty. Operand 10206 states and 13690 transitions. [2024-10-11 04:53:23,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-11 04:53:23,423 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:23,423 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:23,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 04:53:23,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-11 04:53:23,624 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:23,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:23,624 INFO L85 PathProgramCache]: Analyzing trace with hash -366344372, now seen corresponding path program 1 times [2024-10-11 04:53:23,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:23,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250430620] [2024-10-11 04:53:23,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:23,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:24,822 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:24,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:24,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250430620] [2024-10-11 04:53:24,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250430620] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:53:24,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047363919] [2024-10-11 04:53:24,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:24,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:53:24,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:53:24,825 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:53:24,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 04:53:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:25,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 04:53:25,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:53:25,402 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:25,402 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:53:26,125 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:26,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047363919] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:53:26,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:53:26,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-10-11 04:53:26,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539485449] [2024-10-11 04:53:26,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:53:26,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-11 04:53:26,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:26,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-11 04:53:26,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=669, Unknown=0, NotChecked=0, Total=756 [2024-10-11 04:53:26,133 INFO L87 Difference]: Start difference. First operand 10206 states and 13690 transitions. Second operand has 28 states, 28 states have (on average 9.178571428571429) internal successors, (257), 27 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:30,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:30,314 INFO L93 Difference]: Finished difference Result 32942 states and 43473 transitions. [2024-10-11 04:53:30,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-10-11 04:53:30,314 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.178571428571429) internal successors, (257), 27 states have internal predecessors, (257), 0 states have call successors, (0), 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 98 [2024-10-11 04:53:30,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:30,346 INFO L225 Difference]: With dead ends: 32942 [2024-10-11 04:53:30,347 INFO L226 Difference]: Without dead ends: 28119 [2024-10-11 04:53:30,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1181 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1055, Invalid=4201, Unknown=0, NotChecked=0, Total=5256 [2024-10-11 04:53:30,357 INFO L432 NwaCegarLoop]: 1530 mSDtfsCounter, 23999 mSDsluCounter, 5330 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23999 SdHoareTripleChecker+Valid, 6860 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:30,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23999 Valid, 6860 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 04:53:30,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28119 states. [2024-10-11 04:53:31,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28119 to 27603. [2024-10-11 04:53:31,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27603 states, 27601 states have (on average 1.3029600376797943) internal successors, (35963), 27602 states have internal predecessors, (35963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:31,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27603 states to 27603 states and 35963 transitions. [2024-10-11 04:53:31,316 INFO L78 Accepts]: Start accepts. Automaton has 27603 states and 35963 transitions. Word has length 98 [2024-10-11 04:53:31,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:31,316 INFO L471 AbstractCegarLoop]: Abstraction has 27603 states and 35963 transitions. [2024-10-11 04:53:31,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.178571428571429) internal successors, (257), 27 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:31,317 INFO L276 IsEmpty]: Start isEmpty. Operand 27603 states and 35963 transitions. [2024-10-11 04:53:31,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-11 04:53:31,319 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:31,319 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:31,335 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 04:53:31,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:53:31,520 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:31,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:31,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1605261540, now seen corresponding path program 1 times [2024-10-11 04:53:31,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:31,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295218342] [2024-10-11 04:53:31,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:31,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:31,766 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:31,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:31,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295218342] [2024-10-11 04:53:31,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295218342] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:53:31,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350509342] [2024-10-11 04:53:31,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:31,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:53:31,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:53:31,772 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:53:31,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 04:53:31,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:31,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-11 04:53:31,893 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:53:32,723 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:32,723 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:53:33,828 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:33,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350509342] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:53:33,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:53:33,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 28 [2024-10-11 04:53:33,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056585894] [2024-10-11 04:53:33,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:53:33,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-11 04:53:33,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:33,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-11 04:53:33,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=669, Unknown=0, NotChecked=0, Total=756 [2024-10-11 04:53:33,830 INFO L87 Difference]: Start difference. First operand 27603 states and 35963 transitions. Second operand has 28 states, 28 states have (on average 9.857142857142858) internal successors, (276), 28 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:37,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:37,200 INFO L93 Difference]: Finished difference Result 61904 states and 80236 transitions. [2024-10-11 04:53:37,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-10-11 04:53:37,201 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.857142857142858) internal successors, (276), 28 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-10-11 04:53:37,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:37,266 INFO L225 Difference]: With dead ends: 61904 [2024-10-11 04:53:37,267 INFO L226 Difference]: Without dead ends: 41578 [2024-10-11 04:53:37,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=712, Invalid=2828, Unknown=0, NotChecked=0, Total=3540 [2024-10-11 04:53:37,289 INFO L432 NwaCegarLoop]: 1502 mSDtfsCounter, 15500 mSDsluCounter, 16648 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15500 SdHoareTripleChecker+Valid, 18150 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:37,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15500 Valid, 18150 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 04:53:37,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41578 states. [2024-10-11 04:53:38,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41578 to 41566. [2024-10-11 04:53:38,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41566 states, 41564 states have (on average 1.2857761524396112) internal successors, (53442), 41565 states have internal predecessors, (53442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:38,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41566 states to 41566 states and 53442 transitions. [2024-10-11 04:53:38,939 INFO L78 Accepts]: Start accepts. Automaton has 41566 states and 53442 transitions. Word has length 99 [2024-10-11 04:53:38,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:38,939 INFO L471 AbstractCegarLoop]: Abstraction has 41566 states and 53442 transitions. [2024-10-11 04:53:38,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.857142857142858) internal successors, (276), 28 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:38,940 INFO L276 IsEmpty]: Start isEmpty. Operand 41566 states and 53442 transitions. [2024-10-11 04:53:38,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-11 04:53:38,942 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:38,942 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:38,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 04:53:39,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-10-11 04:53:39,143 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:39,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:39,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1892587380, now seen corresponding path program 1 times [2024-10-11 04:53:39,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:39,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116577614] [2024-10-11 04:53:39,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:39,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:39,391 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:39,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:39,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116577614] [2024-10-11 04:53:39,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116577614] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:53:39,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425152453] [2024-10-11 04:53:39,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:39,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:53:39,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:53:39,393 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:53:39,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 04:53:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:39,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-11 04:53:39,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:53:40,232 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:40,232 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 04:53:41,352 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:41,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425152453] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 04:53:41,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 04:53:41,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-10-11 04:53:41,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422125746] [2024-10-11 04:53:41,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 04:53:41,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-11 04:53:41,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 04:53:41,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-11 04:53:41,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2024-10-11 04:53:41,356 INFO L87 Difference]: Start difference. First operand 41566 states and 53442 transitions. Second operand has 32 states, 32 states have (on average 8.5) internal successors, (272), 32 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:47,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 04:53:47,013 INFO L93 Difference]: Finished difference Result 104324 states and 133933 transitions. [2024-10-11 04:53:47,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-11 04:53:47,014 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.5) internal successors, (272), 32 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-10-11 04:53:47,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 04:53:47,088 INFO L225 Difference]: With dead ends: 104324 [2024-10-11 04:53:47,089 INFO L226 Difference]: Without dead ends: 68393 [2024-10-11 04:53:47,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1433 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1134, Invalid=4872, Unknown=0, NotChecked=0, Total=6006 [2024-10-11 04:53:47,106 INFO L432 NwaCegarLoop]: 1515 mSDtfsCounter, 18388 mSDsluCounter, 12535 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18388 SdHoareTripleChecker+Valid, 14050 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 04:53:47,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18388 Valid, 14050 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 04:53:47,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68393 states. [2024-10-11 04:53:49,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68393 to 43225. [2024-10-11 04:53:49,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43225 states, 43223 states have (on average 1.2680285958864494) internal successors, (54808), 43224 states have internal predecessors, (54808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:49,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43225 states to 43225 states and 54808 transitions. [2024-10-11 04:53:49,103 INFO L78 Accepts]: Start accepts. Automaton has 43225 states and 54808 transitions. Word has length 99 [2024-10-11 04:53:49,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 04:53:49,104 INFO L471 AbstractCegarLoop]: Abstraction has 43225 states and 54808 transitions. [2024-10-11 04:53:49,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.5) internal successors, (272), 32 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 04:53:49,104 INFO L276 IsEmpty]: Start isEmpty. Operand 43225 states and 54808 transitions. [2024-10-11 04:53:49,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-11 04:53:49,106 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 04:53:49,106 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 04:53:49,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 04:53:49,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:53:49,308 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 04:53:49,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 04:53:49,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1674169820, now seen corresponding path program 1 times [2024-10-11 04:53:49,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 04:53:49,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574524060] [2024-10-11 04:53:49,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:49,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 04:53:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:49,807 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:49,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 04:53:49,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574524060] [2024-10-11 04:53:49,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574524060] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 04:53:49,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622935825] [2024-10-11 04:53:49,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 04:53:49,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 04:53:49,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 04:53:49,815 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 04:53:49,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 04:53:49,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 04:53:49,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 04:53:49,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 04:53:50,556 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 04:53:50,556 INFO L311 TraceCheckSpWp]: Computing backward predicates...