./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.8_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 892c0a4dacb59a58720267a26ccd1ecf3e12464bea70926a81b5c091372cff3e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 05:08:13,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 05:08:13,350 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 05:08:13,353 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 05:08:13,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 05:08:13,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 05:08:13,383 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 05:08:13,383 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 05:08:13,384 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 05:08:13,384 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 05:08:13,384 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 05:08:13,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 05:08:13,385 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 05:08:13,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 05:08:13,386 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 05:08:13,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 05:08:13,387 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 05:08:13,387 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 05:08:13,387 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 05:08:13,387 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 05:08:13,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 05:08:13,392 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 05:08:13,393 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 05:08:13,393 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 05:08:13,393 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 05:08:13,393 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 05:08:13,394 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 05:08:13,394 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 05:08:13,394 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 05:08:13,394 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 05:08:13,395 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 05:08:13,395 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 05:08:13,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 05:08:13,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 05:08:13,396 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 05:08:13,396 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 05:08:13,400 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 05:08:13,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 05:08:13,401 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 05:08:13,401 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 05:08:13,401 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 05:08:13,402 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 05:08:13,403 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 892c0a4dacb59a58720267a26ccd1ecf3e12464bea70926a81b5c091372cff3e [2024-10-14 05:08:13,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 05:08:13,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 05:08:13,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 05:08:13,686 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 05:08:13,687 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 05:08:13,688 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-10-14 05:08:15,178 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 05:08:15,716 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 05:08:15,717 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-10-14 05:08:15,756 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2a570f3f/80443e00505c4475a1f4e129b6bdc320/FLAGfee29494f [2024-10-14 05:08:15,774 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2a570f3f/80443e00505c4475a1f4e129b6bdc320 [2024-10-14 05:08:15,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 05:08:15,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 05:08:15,780 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 05:08:15,780 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 05:08:15,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 05:08:15,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:08:15" (1/1) ... [2024-10-14 05:08:15,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50dba1da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:15, skipping insertion in model container [2024-10-14 05:08:15,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:08:15" (1/1) ... [2024-10-14 05:08:15,911 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 05:08:16,358 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.8_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[26962,26975] [2024-10-14 05:08:16,428 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.8_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[34252,34265] [2024-10-14 05:08:17,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 05:08:17,156 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 05:08:17,213 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.8_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[26962,26975] [2024-10-14 05:08:17,227 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.8_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[34252,34265] [2024-10-14 05:08:17,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 05:08:17,698 INFO L204 MainTranslator]: Completed translation [2024-10-14 05:08:17,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:17 WrapperNode [2024-10-14 05:08:17,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 05:08:17,701 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 05:08:17,701 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 05:08:17,701 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 05:08:17,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:17" (1/1) ... [2024-10-14 05:08:17,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:17" (1/1) ... [2024-10-14 05:08:18,258 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5289 [2024-10-14 05:08:18,259 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 05:08:18,260 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 05:08:18,260 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 05:08:18,260 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 05:08:18,272 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:17" (1/1) ... [2024-10-14 05:08:18,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:17" (1/1) ... [2024-10-14 05:08:18,366 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:17" (1/1) ... [2024-10-14 05:08:18,517 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 05:08:18,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:17" (1/1) ... [2024-10-14 05:08:18,518 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:17" (1/1) ... [2024-10-14 05:08:18,780 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:17" (1/1) ... [2024-10-14 05:08:18,844 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:17" (1/1) ... [2024-10-14 05:08:18,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:17" (1/1) ... [2024-10-14 05:08:18,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:17" (1/1) ... [2024-10-14 05:08:19,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 05:08:19,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 05:08:19,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 05:08:19,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 05:08:19,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:17" (1/1) ... [2024-10-14 05:08:19,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 05:08:19,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 05:08:19,111 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 05:08:19,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 05:08:19,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 05:08:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 05:08:19,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 05:08:19,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 05:08:19,359 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 05:08:19,363 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 05:08:23,962 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-10-14 05:08:23,963 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 05:08:24,041 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 05:08:24,042 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 05:08:24,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:08:24 BoogieIcfgContainer [2024-10-14 05:08:24,042 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 05:08:24,045 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 05:08:24,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 05:08:24,049 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 05:08:24,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:08:15" (1/3) ... [2024-10-14 05:08:24,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20db8da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:08:24, skipping insertion in model container [2024-10-14 05:08:24,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:08:17" (2/3) ... [2024-10-14 05:08:24,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20db8da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:08:24, skipping insertion in model container [2024-10-14 05:08:24,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:08:24" (3/3) ... [2024-10-14 05:08:24,054 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-10-14 05:08:24,075 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 05:08:24,076 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 05:08:24,184 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 05:08:24,193 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;@6959101f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 05:08:24,193 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 05:08:24,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 882 states, 879 states have (on average 1.9704209328782707) internal successors, (1732), 881 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:24,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-14 05:08:24,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:24,216 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] [2024-10-14 05:08:24,216 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:24,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:24,222 INFO L85 PathProgramCache]: Analyzing trace with hash -31988621, now seen corresponding path program 1 times [2024-10-14 05:08:24,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:24,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418511388] [2024-10-14 05:08:24,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:24,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:24,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:08:24,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:24,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418511388] [2024-10-14 05:08:24,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418511388] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:24,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:24,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 05:08:24,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095324595] [2024-10-14 05:08:24,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:24,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 05:08:24,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:24,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 05:08:24,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 05:08:24,622 INFO L87 Difference]: Start difference. First operand has 882 states, 879 states have (on average 1.9704209328782707) internal successors, (1732), 881 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:24,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:24,731 INFO L93 Difference]: Finished difference Result 1698 states and 3335 transitions. [2024-10-14 05:08:24,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 05:08:24,738 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-10-14 05:08:24,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:24,758 INFO L225 Difference]: With dead ends: 1698 [2024-10-14 05:08:24,759 INFO L226 Difference]: Without dead ends: 878 [2024-10-14 05:08:24,764 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 [2024-10-14 05:08:24,767 INFO L432 NwaCegarLoop]: 1660 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:08:24,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1660 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:08:24,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-10-14 05:08:24,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2024-10-14 05:08:24,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 876 states have (on average 1.8961187214611872) internal successors, (1661), 877 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:24,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1661 transitions. [2024-10-14 05:08:24,861 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1661 transitions. Word has length 27 [2024-10-14 05:08:24,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:08:24,862 INFO L471 AbstractCegarLoop]: Abstraction has 878 states and 1661 transitions. [2024-10-14 05:08:24,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:24,862 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1661 transitions. [2024-10-14 05:08:24,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-14 05:08:24,865 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:24,865 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] [2024-10-14 05:08:24,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 05:08:24,866 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:24,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:24,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1837426955, now seen corresponding path program 1 times [2024-10-14 05:08:24,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:24,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847661910] [2024-10-14 05:08:24,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:24,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:25,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:08:25,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:25,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847661910] [2024-10-14 05:08:25,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847661910] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:25,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:25,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 05:08:25,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242560408] [2024-10-14 05:08:25,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:25,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 05:08:25,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:25,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 05:08:25,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 05:08:25,071 INFO L87 Difference]: Start difference. First operand 878 states and 1661 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:25,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:25,221 INFO L93 Difference]: Finished difference Result 940 states and 1760 transitions. [2024-10-14 05:08:25,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:08:25,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2024-10-14 05:08:25,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:25,226 INFO L225 Difference]: With dead ends: 940 [2024-10-14 05:08:25,227 INFO L226 Difference]: Without dead ends: 878 [2024-10-14 05:08:25,228 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 [2024-10-14 05:08:25,229 INFO L432 NwaCegarLoop]: 1658 mSDtfsCounter, 0 mSDsluCounter, 3251 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4909 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:08:25,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4909 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:08:25,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2024-10-14 05:08:25,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2024-10-14 05:08:25,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 876 states have (on average 1.82648401826484) internal successors, (1600), 877 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:25,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1600 transitions. [2024-10-14 05:08:25,252 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1600 transitions. Word has length 27 [2024-10-14 05:08:25,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:08:25,252 INFO L471 AbstractCegarLoop]: Abstraction has 878 states and 1600 transitions. [2024-10-14 05:08:25,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:25,252 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1600 transitions. [2024-10-14 05:08:25,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-14 05:08:25,254 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:25,254 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:08:25,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 05:08:25,254 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:25,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:25,255 INFO L85 PathProgramCache]: Analyzing trace with hash 630448219, now seen corresponding path program 1 times [2024-10-14 05:08:25,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:25,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041340653] [2024-10-14 05:08:25,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:25,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:25,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:08:25,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:25,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041340653] [2024-10-14 05:08:25,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041340653] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:25,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:25,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:08:25,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118460737] [2024-10-14 05:08:25,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:25,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 05:08:25,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:25,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 05:08:25,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 05:08:25,567 INFO L87 Difference]: Start difference. First operand 878 states and 1600 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:31,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:31,504 INFO L93 Difference]: Finished difference Result 3133 states and 5909 transitions. [2024-10-14 05:08:31,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:08:31,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-10-14 05:08:31,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:31,516 INFO L225 Difference]: With dead ends: 3133 [2024-10-14 05:08:31,516 INFO L226 Difference]: Without dead ends: 2380 [2024-10-14 05:08:31,518 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 [2024-10-14 05:08:31,519 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 2498 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5521 mSolverCounterSat, 1100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2498 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 6621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1100 IncrementalHoareTripleChecker+Valid, 5521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-10-14 05:08:31,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2498 Valid, 869 Invalid, 6621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1100 Valid, 5521 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-10-14 05:08:31,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2024-10-14 05:08:31,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 2380. [2024-10-14 05:08:31,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2380 states, 2378 states have (on average 1.5668629100084104) internal successors, (3726), 2379 states have internal predecessors, (3726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:31,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 3726 transitions. [2024-10-14 05:08:31,572 INFO L78 Accepts]: Start accepts. Automaton has 2380 states and 3726 transitions. Word has length 62 [2024-10-14 05:08:31,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:08:31,574 INFO L471 AbstractCegarLoop]: Abstraction has 2380 states and 3726 transitions. [2024-10-14 05:08:31,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:31,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2380 states and 3726 transitions. [2024-10-14 05:08:31,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-14 05:08:31,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:31,580 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:08:31,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 05:08:31,581 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:31,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:31,582 INFO L85 PathProgramCache]: Analyzing trace with hash -470628699, now seen corresponding path program 1 times [2024-10-14 05:08:31,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:31,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589800747] [2024-10-14 05:08:31,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:31,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:32,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:08:32,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:32,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589800747] [2024-10-14 05:08:32,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589800747] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:32,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:32,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 05:08:32,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172634800] [2024-10-14 05:08:32,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:32,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 05:08:32,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:32,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 05:08:32,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 05:08:32,019 INFO L87 Difference]: Start difference. First operand 2380 states and 3726 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:32,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:32,683 INFO L93 Difference]: Finished difference Result 3324 states and 5262 transitions. [2024-10-14 05:08:32,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 05:08:32,684 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 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 [2024-10-14 05:08:32,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:32,702 INFO L225 Difference]: With dead ends: 3324 [2024-10-14 05:08:32,702 INFO L226 Difference]: Without dead ends: 3265 [2024-10-14 05:08:32,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-10-14 05:08:32,708 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 13341 mSDsluCounter, 4679 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13341 SdHoareTripleChecker+Valid, 6272 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 05:08:32,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13341 Valid, 6272 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 05:08:32,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2024-10-14 05:08:32,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 2437. [2024-10-14 05:08:32,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 2435 states have (on average 1.5683778234086243) internal successors, (3819), 2436 states have internal predecessors, (3819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:32,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 3819 transitions. [2024-10-14 05:08:32,784 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 3819 transitions. Word has length 87 [2024-10-14 05:08:32,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:08:32,785 INFO L471 AbstractCegarLoop]: Abstraction has 2437 states and 3819 transitions. [2024-10-14 05:08:32,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:32,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 3819 transitions. [2024-10-14 05:08:32,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-14 05:08:32,789 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:32,789 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:08:32,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 05:08:32,790 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:32,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:32,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1442819851, now seen corresponding path program 1 times [2024-10-14 05:08:32,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:32,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604398503] [2024-10-14 05:08:32,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:32,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:32,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:08:32,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:32,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604398503] [2024-10-14 05:08:32,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604398503] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:32,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:32,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:08:32,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596373750] [2024-10-14 05:08:32,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:32,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:08:32,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:32,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:08:32,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:32,978 INFO L87 Difference]: Start difference. First operand 2437 states and 3819 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) [2024-10-14 05:08:33,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:33,035 INFO L93 Difference]: Finished difference Result 2658 states and 4178 transitions. [2024-10-14 05:08:33,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:08:33,036 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 [2024-10-14 05:08:33,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:33,051 INFO L225 Difference]: With dead ends: 2658 [2024-10-14 05:08:33,051 INFO L226 Difference]: Without dead ends: 2542 [2024-10-14 05:08:33,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:33,055 INFO L432 NwaCegarLoop]: 1595 mSDtfsCounter, 1504 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1685 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 [2024-10-14 05:08:33,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1685 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:08:33,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2024-10-14 05:08:33,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2540. [2024-10-14 05:08:33,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2540 states, 2538 states have (on average 1.570133963750985) internal successors, (3985), 2539 states have internal predecessors, (3985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:33,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 3985 transitions. [2024-10-14 05:08:33,140 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 3985 transitions. Word has length 89 [2024-10-14 05:08:33,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:08:33,141 INFO L471 AbstractCegarLoop]: Abstraction has 2540 states and 3985 transitions. [2024-10-14 05:08:33,142 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) [2024-10-14 05:08:33,142 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 3985 transitions. [2024-10-14 05:08:33,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-14 05:08:33,143 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:33,144 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:08:33,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 05:08:33,144 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:33,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:33,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1440674899, now seen corresponding path program 1 times [2024-10-14 05:08:33,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:33,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40484942] [2024-10-14 05:08:33,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:33,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:33,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:08:33,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:33,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40484942] [2024-10-14 05:08:33,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40484942] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:33,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:33,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 05:08:33,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195539989] [2024-10-14 05:08:33,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:33,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 05:08:33,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:33,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 05:08:33,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-14 05:08:33,831 INFO L87 Difference]: Start difference. First operand 2540 states and 3985 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 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) [2024-10-14 05:08:34,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:34,398 INFO L93 Difference]: Finished difference Result 2761 states and 4341 transitions. [2024-10-14 05:08:34,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 05:08:34,399 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 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 [2024-10-14 05:08:34,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:34,410 INFO L225 Difference]: With dead ends: 2761 [2024-10-14 05:08:34,410 INFO L226 Difference]: Without dead ends: 2542 [2024-10-14 05:08:34,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-10-14 05:08:34,412 INFO L432 NwaCegarLoop]: 1587 mSDtfsCounter, 12116 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12116 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 05:08:34,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12116 Valid, 2234 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 05:08:34,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2542 states. [2024-10-14 05:08:34,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2542 to 2540. [2024-10-14 05:08:34,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2540 states, 2538 states have (on average 1.5693459416863673) internal successors, (3983), 2539 states have internal predecessors, (3983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:34,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 3983 transitions. [2024-10-14 05:08:34,480 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 3983 transitions. Word has length 89 [2024-10-14 05:08:34,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:08:34,481 INFO L471 AbstractCegarLoop]: Abstraction has 2540 states and 3983 transitions. [2024-10-14 05:08:34,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 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) [2024-10-14 05:08:34,481 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 3983 transitions. [2024-10-14 05:08:34,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-14 05:08:34,482 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:34,483 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:08:34,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 05:08:34,483 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:34,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:34,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1840151110, now seen corresponding path program 1 times [2024-10-14 05:08:34,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:34,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120503725] [2024-10-14 05:08:34,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:34,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:34,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:08:34,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:34,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120503725] [2024-10-14 05:08:34,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120503725] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:34,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:34,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 05:08:34,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124700512] [2024-10-14 05:08:34,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:34,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 05:08:34,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:34,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 05:08:34,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 05:08:34,765 INFO L87 Difference]: Start difference. First operand 2540 states and 3983 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:34,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:34,814 INFO L93 Difference]: Finished difference Result 2546 states and 3990 transitions. [2024-10-14 05:08:34,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 05:08:34,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-10-14 05:08:34,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:34,825 INFO L225 Difference]: With dead ends: 2546 [2024-10-14 05:08:34,825 INFO L226 Difference]: Without dead ends: 2544 [2024-10-14 05:08:34,829 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 [2024-10-14 05:08:34,830 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 0 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4780 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 [2024-10-14 05:08:34,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4780 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:08:34,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2024-10-14 05:08:34,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2544. [2024-10-14 05:08:34,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2544 states, 2542 states have (on average 1.5680566483084186) internal successors, (3986), 2543 states have internal predecessors, (3986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:34,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 3986 transitions. [2024-10-14 05:08:34,889 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 3986 transitions. Word has length 90 [2024-10-14 05:08:34,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:08:34,889 INFO L471 AbstractCegarLoop]: Abstraction has 2544 states and 3986 transitions. [2024-10-14 05:08:34,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:34,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 3986 transitions. [2024-10-14 05:08:34,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 05:08:34,891 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:34,891 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:08:34,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 05:08:34,891 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:34,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:34,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1591939181, now seen corresponding path program 1 times [2024-10-14 05:08:34,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:34,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115545243] [2024-10-14 05:08:34,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:34,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:35,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:08:35,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:35,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115545243] [2024-10-14 05:08:35,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115545243] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:35,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:35,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:08:35,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569005939] [2024-10-14 05:08:35,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:35,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:08:35,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:35,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:08:35,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:35,004 INFO L87 Difference]: Start difference. First operand 2544 states and 3986 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) [2024-10-14 05:08:35,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:35,051 INFO L93 Difference]: Finished difference Result 2778 states and 4359 transitions. [2024-10-14 05:08:35,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:08:35,052 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 [2024-10-14 05:08:35,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:35,061 INFO L225 Difference]: With dead ends: 2778 [2024-10-14 05:08:35,061 INFO L226 Difference]: Without dead ends: 2658 [2024-10-14 05:08:35,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:35,063 INFO L432 NwaCegarLoop]: 1677 mSDtfsCounter, 1524 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:08:35,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1773 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:08:35,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2024-10-14 05:08:35,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2656. [2024-10-14 05:08:35,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2656 states, 2654 states have (on average 1.568575734740015) internal successors, (4163), 2655 states have internal predecessors, (4163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:35,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2656 states to 2656 states and 4163 transitions. [2024-10-14 05:08:35,119 INFO L78 Accepts]: Start accepts. Automaton has 2656 states and 4163 transitions. Word has length 91 [2024-10-14 05:08:35,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:08:35,119 INFO L471 AbstractCegarLoop]: Abstraction has 2656 states and 4163 transitions. [2024-10-14 05:08:35,120 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) [2024-10-14 05:08:35,120 INFO L276 IsEmpty]: Start isEmpty. Operand 2656 states and 4163 transitions. [2024-10-14 05:08:35,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 05:08:35,121 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:35,121 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:08:35,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 05:08:35,121 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:35,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:35,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1666551661, now seen corresponding path program 1 times [2024-10-14 05:08:35,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:35,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389131085] [2024-10-14 05:08:35,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:35,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:35,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:08:35,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:35,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389131085] [2024-10-14 05:08:35,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389131085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:35,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:35,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:08:35,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389304932] [2024-10-14 05:08:35,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:35,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:08:35,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:35,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:08:35,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:35,215 INFO L87 Difference]: Start difference. First operand 2656 states and 4163 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) [2024-10-14 05:08:35,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:35,262 INFO L93 Difference]: Finished difference Result 3298 states and 5183 transitions. [2024-10-14 05:08:35,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:08:35,263 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 [2024-10-14 05:08:35,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:35,273 INFO L225 Difference]: With dead ends: 3298 [2024-10-14 05:08:35,274 INFO L226 Difference]: Without dead ends: 2965 [2024-10-14 05:08:35,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:35,276 INFO L432 NwaCegarLoop]: 1679 mSDtfsCounter, 1522 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:08:35,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1779 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:08:35,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2024-10-14 05:08:35,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 2963. [2024-10-14 05:08:35,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2963 states, 2961 states have (on average 1.568726781492739) internal successors, (4645), 2962 states have internal predecessors, (4645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:35,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2963 states to 2963 states and 4645 transitions. [2024-10-14 05:08:35,344 INFO L78 Accepts]: Start accepts. Automaton has 2963 states and 4645 transitions. Word has length 91 [2024-10-14 05:08:35,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:08:35,344 INFO L471 AbstractCegarLoop]: Abstraction has 2963 states and 4645 transitions. [2024-10-14 05:08:35,344 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) [2024-10-14 05:08:35,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2963 states and 4645 transitions. [2024-10-14 05:08:35,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 05:08:35,345 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:35,345 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:08:35,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 05:08:35,346 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:35,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:35,346 INFO L85 PathProgramCache]: Analyzing trace with hash 2011549037, now seen corresponding path program 1 times [2024-10-14 05:08:35,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:35,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499626251] [2024-10-14 05:08:35,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:35,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:35,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:08:35,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:35,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499626251] [2024-10-14 05:08:35,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499626251] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:35,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:35,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:08:35,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089184023] [2024-10-14 05:08:35,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:35,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:08:35,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:35,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:08:35,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:35,429 INFO L87 Difference]: Start difference. First operand 2963 states and 4645 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) [2024-10-14 05:08:35,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:35,480 INFO L93 Difference]: Finished difference Result 4195 states and 6587 transitions. [2024-10-14 05:08:35,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:08:35,480 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 [2024-10-14 05:08:35,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:35,493 INFO L225 Difference]: With dead ends: 4195 [2024-10-14 05:08:35,493 INFO L226 Difference]: Without dead ends: 3555 [2024-10-14 05:08:35,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:35,500 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 1518 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:08:35,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1775 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:08:35,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3555 states. [2024-10-14 05:08:35,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3555 to 3553. [2024-10-14 05:08:35,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 3551 states have (on average 1.5660377358490567) internal successors, (5561), 3552 states have internal predecessors, (5561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:35,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 5561 transitions. [2024-10-14 05:08:35,578 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 5561 transitions. Word has length 91 [2024-10-14 05:08:35,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:08:35,579 INFO L471 AbstractCegarLoop]: Abstraction has 3553 states and 5561 transitions. [2024-10-14 05:08:35,579 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) [2024-10-14 05:08:35,579 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 5561 transitions. [2024-10-14 05:08:35,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 05:08:35,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:35,580 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:08:35,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 05:08:35,580 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:35,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:35,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1742965869, now seen corresponding path program 1 times [2024-10-14 05:08:35,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:35,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455244623] [2024-10-14 05:08:35,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:35,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:35,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:08:35,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:35,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455244623] [2024-10-14 05:08:35,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455244623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:35,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:35,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:08:35,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908545799] [2024-10-14 05:08:35,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:35,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:08:35,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:35,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:08:35,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:35,673 INFO L87 Difference]: Start difference. First operand 3553 states and 5561 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) [2024-10-14 05:08:35,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:35,763 INFO L93 Difference]: Finished difference Result 5917 states and 9251 transitions. [2024-10-14 05:08:35,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:08:35,764 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 [2024-10-14 05:08:35,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:35,780 INFO L225 Difference]: With dead ends: 5917 [2024-10-14 05:08:35,781 INFO L226 Difference]: Without dead ends: 4687 [2024-10-14 05:08:35,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:35,786 INFO L432 NwaCegarLoop]: 1665 mSDtfsCounter, 1516 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:08:35,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1777 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:08:35,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4687 states. [2024-10-14 05:08:35,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4687 to 4685. [2024-10-14 05:08:35,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4685 states, 4683 states have (on average 1.5581891949604953) internal successors, (7297), 4684 states have internal predecessors, (7297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:35,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4685 states to 4685 states and 7297 transitions. [2024-10-14 05:08:35,924 INFO L78 Accepts]: Start accepts. Automaton has 4685 states and 7297 transitions. Word has length 91 [2024-10-14 05:08:35,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:08:35,924 INFO L471 AbstractCegarLoop]: Abstraction has 4685 states and 7297 transitions. [2024-10-14 05:08:35,924 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) [2024-10-14 05:08:35,924 INFO L276 IsEmpty]: Start isEmpty. Operand 4685 states and 7297 transitions. [2024-10-14 05:08:35,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 05:08:35,928 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:35,928 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:08:35,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 05:08:35,929 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:35,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:35,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1782909805, now seen corresponding path program 1 times [2024-10-14 05:08:35,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:35,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338131900] [2024-10-14 05:08:35,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:35,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:36,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:08:36,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:36,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338131900] [2024-10-14 05:08:36,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338131900] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:36,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:36,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:08:36,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111185504] [2024-10-14 05:08:36,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:36,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:08:36,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:36,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:08:36,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:36,016 INFO L87 Difference]: Start difference. First operand 4685 states and 7297 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) [2024-10-14 05:08:36,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:36,198 INFO L93 Difference]: Finished difference Result 9217 states and 14291 transitions. [2024-10-14 05:08:36,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:08:36,199 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 [2024-10-14 05:08:36,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:36,212 INFO L225 Difference]: With dead ends: 9217 [2024-10-14 05:08:36,212 INFO L226 Difference]: Without dead ends: 6855 [2024-10-14 05:08:36,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:36,217 INFO L432 NwaCegarLoop]: 1663 mSDtfsCounter, 1514 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:08:36,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1779 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:08:36,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6855 states. [2024-10-14 05:08:36,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6855 to 6853. [2024-10-14 05:08:36,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6853 states, 6851 states have (on average 1.5438622098963655) internal successors, (10577), 6852 states have internal predecessors, (10577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:36,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6853 states to 6853 states and 10577 transitions. [2024-10-14 05:08:36,386 INFO L78 Accepts]: Start accepts. Automaton has 6853 states and 10577 transitions. Word has length 91 [2024-10-14 05:08:36,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:08:36,386 INFO L471 AbstractCegarLoop]: Abstraction has 6853 states and 10577 transitions. [2024-10-14 05:08:36,387 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) [2024-10-14 05:08:36,387 INFO L276 IsEmpty]: Start isEmpty. Operand 6853 states and 10577 transitions. [2024-10-14 05:08:36,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 05:08:36,388 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:36,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:08:36,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 05:08:36,388 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:36,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:36,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1157253741, now seen corresponding path program 1 times [2024-10-14 05:08:36,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:36,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294874292] [2024-10-14 05:08:36,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:36,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:36,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:08:36,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:36,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294874292] [2024-10-14 05:08:36,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294874292] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:36,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:36,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:08:36,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598617678] [2024-10-14 05:08:36,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:36,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:08:36,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:36,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:08:36,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:36,485 INFO L87 Difference]: Start difference. First operand 6853 states and 10577 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) [2024-10-14 05:08:36,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:36,667 INFO L93 Difference]: Finished difference Result 15529 states and 23795 transitions. [2024-10-14 05:08:36,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:08:36,667 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 [2024-10-14 05:08:36,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:36,688 INFO L225 Difference]: With dead ends: 15529 [2024-10-14 05:08:36,688 INFO L226 Difference]: Without dead ends: 10999 [2024-10-14 05:08:36,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:36,699 INFO L432 NwaCegarLoop]: 1661 mSDtfsCounter, 1512 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:08:36,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1781 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:08:36,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10999 states. [2024-10-14 05:08:36,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10999 to 10997. [2024-10-14 05:08:36,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10997 states, 10995 states have (on average 1.5236925875397909) internal successors, (16753), 10996 states have internal predecessors, (16753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:36,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10997 states to 10997 states and 16753 transitions. [2024-10-14 05:08:36,998 INFO L78 Accepts]: Start accepts. Automaton has 10997 states and 16753 transitions. Word has length 91 [2024-10-14 05:08:36,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:08:36,998 INFO L471 AbstractCegarLoop]: Abstraction has 10997 states and 16753 transitions. [2024-10-14 05:08:36,999 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) [2024-10-14 05:08:36,999 INFO L276 IsEmpty]: Start isEmpty. Operand 10997 states and 16753 transitions. [2024-10-14 05:08:37,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 05:08:37,000 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:37,000 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:08:37,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 05:08:37,001 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:37,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:37,001 INFO L85 PathProgramCache]: Analyzing trace with hash 2045987181, now seen corresponding path program 1 times [2024-10-14 05:08:37,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:37,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625379286] [2024-10-14 05:08:37,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:37,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:37,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:37,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:08:37,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:37,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625379286] [2024-10-14 05:08:37,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625379286] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:37,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:37,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:08:37,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416716922] [2024-10-14 05:08:37,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:37,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:08:37,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:37,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:08:37,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:37,088 INFO L87 Difference]: Start difference. First operand 10997 states and 16753 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) [2024-10-14 05:08:37,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:37,427 INFO L93 Difference]: Finished difference Result 27577 states and 41651 transitions. [2024-10-14 05:08:37,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:08:37,428 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 [2024-10-14 05:08:37,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:37,469 INFO L225 Difference]: With dead ends: 27577 [2024-10-14 05:08:37,469 INFO L226 Difference]: Without dead ends: 18903 [2024-10-14 05:08:37,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:37,489 INFO L432 NwaCegarLoop]: 1659 mSDtfsCounter, 1510 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:08:37,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1783 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:08:37,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18903 states. [2024-10-14 05:08:38,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18903 to 18901. [2024-10-14 05:08:38,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18901 states, 18899 states have (on average 1.4993915021958835) internal successors, (28337), 18900 states have internal predecessors, (28337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:38,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18901 states to 18901 states and 28337 transitions. [2024-10-14 05:08:38,159 INFO L78 Accepts]: Start accepts. Automaton has 18901 states and 28337 transitions. Word has length 91 [2024-10-14 05:08:38,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:08:38,159 INFO L471 AbstractCegarLoop]: Abstraction has 18901 states and 28337 transitions. [2024-10-14 05:08:38,160 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) [2024-10-14 05:08:38,160 INFO L276 IsEmpty]: Start isEmpty. Operand 18901 states and 28337 transitions. [2024-10-14 05:08:38,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-14 05:08:38,161 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:38,161 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:08:38,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 05:08:38,161 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:38,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:38,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1873031571, now seen corresponding path program 1 times [2024-10-14 05:08:38,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:38,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443421317] [2024-10-14 05:08:38,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:38,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:38,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 05:08:38,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:38,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443421317] [2024-10-14 05:08:38,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443421317] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:38,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:38,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 05:08:38,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649205107] [2024-10-14 05:08:38,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:38,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 05:08:38,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:38,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 05:08:38,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:38,252 INFO L87 Difference]: Start difference. First operand 18901 states and 28337 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) [2024-10-14 05:08:39,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:39,175 INFO L93 Difference]: Finished difference Result 50521 states and 75059 transitions. [2024-10-14 05:08:39,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 05:08:39,176 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 [2024-10-14 05:08:39,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:39,249 INFO L225 Difference]: With dead ends: 50521 [2024-10-14 05:08:39,249 INFO L226 Difference]: Without dead ends: 33943 [2024-10-14 05:08:39,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 05:08:39,273 INFO L432 NwaCegarLoop]: 1677 mSDtfsCounter, 1520 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 05:08:39,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1781 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 05:08:39,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33943 states. [2024-10-14 05:08:40,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33943 to 33941. [2024-10-14 05:08:40,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33941 states, 33939 states have (on average 1.472317982262294) internal successors, (49969), 33940 states have internal predecessors, (49969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:40,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33941 states to 33941 states and 49969 transitions. [2024-10-14 05:08:40,803 INFO L78 Accepts]: Start accepts. Automaton has 33941 states and 49969 transitions. Word has length 91 [2024-10-14 05:08:40,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:08:40,803 INFO L471 AbstractCegarLoop]: Abstraction has 33941 states and 49969 transitions. [2024-10-14 05:08:40,803 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) [2024-10-14 05:08:40,804 INFO L276 IsEmpty]: Start isEmpty. Operand 33941 states and 49969 transitions. [2024-10-14 05:08:40,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 05:08:40,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:40,812 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:08:40,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 05:08:40,812 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:40,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:40,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1900714775, now seen corresponding path program 1 times [2024-10-14 05:08:40,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:40,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643011858] [2024-10-14 05:08:40,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:40,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:41,242 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 05:08:41,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:41,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643011858] [2024-10-14 05:08:41,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643011858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:41,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:41,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 05:08:41,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605512317] [2024-10-14 05:08:41,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:41,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 05:08:41,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:41,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 05:08:41,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 05:08:41,244 INFO L87 Difference]: Start difference. First operand 33941 states and 49969 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:46,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:46,193 INFO L93 Difference]: Finished difference Result 283559 states and 415674 transitions. [2024-10-14 05:08:46,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 05:08:46,193 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 115 [2024-10-14 05:08:46,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:47,189 INFO L225 Difference]: With dead ends: 283559 [2024-10-14 05:08:47,190 INFO L226 Difference]: Without dead ends: 261541 [2024-10-14 05:08:47,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 05:08:47,303 INFO L432 NwaCegarLoop]: 1693 mSDtfsCounter, 11680 mSDsluCounter, 3496 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11680 SdHoareTripleChecker+Valid, 5189 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 05:08:47,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11680 Valid, 5189 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 05:08:47,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261541 states. [2024-10-14 05:08:50,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261541 to 60821. [2024-10-14 05:08:51,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60821 states, 60819 states have (on average 1.4635064700175933) internal successors, (89009), 60820 states have internal predecessors, (89009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:51,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60821 states to 60821 states and 89009 transitions. [2024-10-14 05:08:51,193 INFO L78 Accepts]: Start accepts. Automaton has 60821 states and 89009 transitions. Word has length 115 [2024-10-14 05:08:51,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:08:51,194 INFO L471 AbstractCegarLoop]: Abstraction has 60821 states and 89009 transitions. [2024-10-14 05:08:51,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:51,195 INFO L276 IsEmpty]: Start isEmpty. Operand 60821 states and 89009 transitions. [2024-10-14 05:08:51,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 05:08:51,204 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:08:51,204 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:08:51,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 05:08:51,204 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:08:51,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:08:51,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1975327255, now seen corresponding path program 1 times [2024-10-14 05:08:51,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:08:51,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642936774] [2024-10-14 05:08:51,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:08:51,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:08:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:08:51,525 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 05:08:51,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:08:51,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642936774] [2024-10-14 05:08:51,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642936774] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:08:51,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:08:51,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 05:08:51,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89028475] [2024-10-14 05:08:51,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:08:51,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 05:08:51,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:08:51,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 05:08:51,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 05:08:51,529 INFO L87 Difference]: Start difference. First operand 60821 states and 89009 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:08:57,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:08:57,586 INFO L93 Difference]: Finished difference Result 315175 states and 461754 transitions. [2024-10-14 05:08:57,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 05:08:57,587 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 115 [2024-10-14 05:08:57,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:08:58,089 INFO L225 Difference]: With dead ends: 315175 [2024-10-14 05:08:58,090 INFO L226 Difference]: Without dead ends: 283557 [2024-10-14 05:08:58,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 05:08:58,395 INFO L432 NwaCegarLoop]: 1692 mSDtfsCounter, 11680 mSDsluCounter, 3489 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11680 SdHoareTripleChecker+Valid, 5181 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 05:08:58,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11680 Valid, 5181 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 05:08:58,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283557 states. [2024-10-14 05:09:02,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283557 to 103445. [2024-10-14 05:09:03,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103445 states, 103443 states have (on average 1.4581266977949208) internal successors, (150833), 103444 states have internal predecessors, (150833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:09:03,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103445 states to 103445 states and 150833 transitions. [2024-10-14 05:09:03,317 INFO L78 Accepts]: Start accepts. Automaton has 103445 states and 150833 transitions. Word has length 115 [2024-10-14 05:09:03,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:09:03,318 INFO L471 AbstractCegarLoop]: Abstraction has 103445 states and 150833 transitions. [2024-10-14 05:09:03,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:09:03,318 INFO L276 IsEmpty]: Start isEmpty. Operand 103445 states and 150833 transitions. [2024-10-14 05:09:03,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 05:09:03,331 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:09:03,331 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:09:03,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 05:09:03,332 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:09:03,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:09:03,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1974642665, now seen corresponding path program 1 times [2024-10-14 05:09:03,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:09:03,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46202512] [2024-10-14 05:09:03,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:09:03,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:09:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:09:03,747 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 05:09:03,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:09:03,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46202512] [2024-10-14 05:09:03,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46202512] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:09:03,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:09:03,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 05:09:03,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738920799] [2024-10-14 05:09:03,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:09:03,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 05:09:03,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:09:03,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 05:09:03,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 05:09:03,751 INFO L87 Difference]: Start difference. First operand 103445 states and 150833 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:09:11,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 05:09:11,773 INFO L93 Difference]: Finished difference Result 346791 states and 507706 transitions. [2024-10-14 05:09:11,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 05:09:11,774 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 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 115 [2024-10-14 05:09:11,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 05:09:12,355 INFO L225 Difference]: With dead ends: 346791 [2024-10-14 05:09:12,355 INFO L226 Difference]: Without dead ends: 315173 [2024-10-14 05:09:12,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-14 05:09:12,491 INFO L432 NwaCegarLoop]: 1690 mSDtfsCounter, 11722 mSDsluCounter, 3485 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11722 SdHoareTripleChecker+Valid, 5175 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 05:09:12,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11722 Valid, 5175 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 05:09:12,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315173 states. [2024-10-14 05:09:18,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315173 to 135061. [2024-10-14 05:09:18,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135061 states, 135059 states have (on average 1.457029890640387) internal successors, (196785), 135060 states have internal predecessors, (196785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:09:19,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135061 states to 135061 states and 196785 transitions. [2024-10-14 05:09:19,177 INFO L78 Accepts]: Start accepts. Automaton has 135061 states and 196785 transitions. Word has length 115 [2024-10-14 05:09:19,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 05:09:19,177 INFO L471 AbstractCegarLoop]: Abstraction has 135061 states and 196785 transitions. [2024-10-14 05:09:19,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 05:09:19,177 INFO L276 IsEmpty]: Start isEmpty. Operand 135061 states and 196785 transitions. [2024-10-14 05:09:19,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 05:09:19,191 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 05:09:19,191 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 05:09:19,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 05:09:19,191 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 05:09:19,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 05:09:19,192 INFO L85 PathProgramCache]: Analyzing trace with hash 2051741463, now seen corresponding path program 1 times [2024-10-14 05:09:19,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 05:09:19,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020596017] [2024-10-14 05:09:19,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 05:09:19,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 05:09:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 05:09:19,475 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-14 05:09:19,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 05:09:19,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020596017] [2024-10-14 05:09:19,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020596017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 05:09:19,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 05:09:19,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 05:09:19,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419683640] [2024-10-14 05:09:19,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 05:09:19,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 05:09:19,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 05:09:19,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 05:09:19,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-14 05:09:19,479 INFO L87 Difference]: Start difference. First operand 135061 states and 196785 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)