./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label44.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/eca-rers2012/Problem16_label44.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 04df7a0e588187c87d0a6786097052b38b84b414452cc5f4314f9898df1c2d34 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 17:14:17,447 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 17:14:17,522 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 17:14:17,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 17:14:17,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 17:14:17,558 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 17:14:17,558 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 17:14:17,559 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 17:14:17,559 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 17:14:17,560 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 17:14:17,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 17:14:17,560 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 17:14:17,561 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 17:14:17,561 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 17:14:17,562 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 17:14:17,562 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 17:14:17,563 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 17:14:17,563 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 17:14:17,563 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 17:14:17,564 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 17:14:17,564 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 17:14:17,565 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 17:14:17,565 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 17:14:17,565 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 17:14:17,566 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 17:14:17,566 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 17:14:17,566 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 17:14:17,567 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 17:14:17,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 17:14:17,568 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 17:14:17,568 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 17:14:17,568 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 17:14:17,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 17:14:17,569 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 17:14:17,569 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 17:14:17,570 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 17:14:17,570 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 17:14:17,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 17:14:17,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 17:14:17,571 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 17:14:17,571 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 17:14:17,575 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 17:14:17,575 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04df7a0e588187c87d0a6786097052b38b84b414452cc5f4314f9898df1c2d34 [2024-11-11 17:14:17,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 17:14:17,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 17:14:17,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 17:14:17,858 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 17:14:17,859 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 17:14:17,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label44.c [2024-11-11 17:14:19,373 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 17:14:19,725 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 17:14:19,726 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label44.c [2024-11-11 17:14:19,749 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c783b0046/be064af650e34fe099695d9b3c876510/FLAG9f4c7b34b [2024-11-11 17:14:19,958 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c783b0046/be064af650e34fe099695d9b3c876510 [2024-11-11 17:14:19,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 17:14:19,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 17:14:19,963 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 17:14:19,963 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 17:14:19,967 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 17:14:19,968 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 05:14:19" (1/1) ... [2024-11-11 17:14:19,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21aa1e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:14:19, skipping insertion in model container [2024-11-11 17:14:19,969 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 05:14:19" (1/1) ... [2024-11-11 17:14:20,030 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 17:14:20,268 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label44.c[3342,3355] [2024-11-11 17:14:20,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 17:14:20,644 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 17:14:20,666 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label44.c[3342,3355] [2024-11-11 17:14:20,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 17:14:20,850 INFO L204 MainTranslator]: Completed translation [2024-11-11 17:14:20,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:14:20 WrapperNode [2024-11-11 17:14:20,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 17:14:20,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 17:14:20,853 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 17:14:20,853 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 17:14:20,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:14:20" (1/1) ... [2024-11-11 17:14:20,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:14:20" (1/1) ... [2024-11-11 17:14:21,034 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1770 [2024-11-11 17:14:21,035 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 17:14:21,036 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 17:14:21,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 17:14:21,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 17:14:21,047 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:14:20" (1/1) ... [2024-11-11 17:14:21,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:14:20" (1/1) ... [2024-11-11 17:14:21,062 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:14:20" (1/1) ... [2024-11-11 17:14:21,117 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-11 17:14:21,117 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:14:20" (1/1) ... [2024-11-11 17:14:21,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:14:20" (1/1) ... [2024-11-11 17:14:21,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:14:20" (1/1) ... [2024-11-11 17:14:21,183 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:14:20" (1/1) ... [2024-11-11 17:14:21,205 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:14:20" (1/1) ... [2024-11-11 17:14:21,214 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:14:20" (1/1) ... [2024-11-11 17:14:21,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 17:14:21,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 17:14:21,235 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 17:14:21,236 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 17:14:21,237 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:14:20" (1/1) ... [2024-11-11 17:14:21,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 17:14:21,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:14:21,274 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 17:14:21,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 17:14:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 17:14:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 17:14:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 17:14:21,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 17:14:21,377 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 17:14:21,378 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 17:14:23,347 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-11 17:14:23,348 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 17:14:23,378 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 17:14:23,382 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 17:14:23,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 05:14:23 BoogieIcfgContainer [2024-11-11 17:14:23,383 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 17:14:23,385 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 17:14:23,386 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 17:14:23,389 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 17:14:23,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 05:14:19" (1/3) ... [2024-11-11 17:14:23,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7cbf6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 05:14:23, skipping insertion in model container [2024-11-11 17:14:23,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 05:14:20" (2/3) ... [2024-11-11 17:14:23,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7cbf6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 05:14:23, skipping insertion in model container [2024-11-11 17:14:23,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 05:14:23" (3/3) ... [2024-11-11 17:14:23,393 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label44.c [2024-11-11 17:14:23,410 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 17:14:23,411 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 17:14:23,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 17:14:23,497 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;@15ac6f56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 17:14:23,498 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 17:14:23,503 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:23,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-11 17:14:23,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:23,511 INFO L218 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] [2024-11-11 17:14:23,512 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:23,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:23,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1722039382, now seen corresponding path program 1 times [2024-11-11 17:14:23,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:23,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712908253] [2024-11-11 17:14:23,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:23,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:23,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 17:14:23,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:23,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712908253] [2024-11-11 17:14:23,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712908253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:23,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:14:23,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 17:14:23,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334490563] [2024-11-11 17:14:23,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:23,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:14:23,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:23,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:14:23,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:23,860 INFO L87 Difference]: Start difference. First operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 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 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:25,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:25,562 INFO L93 Difference]: Finished difference Result 1122 states and 2103 transitions. [2024-11-11 17:14:25,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:14:25,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-11-11 17:14:25,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:25,582 INFO L225 Difference]: With dead ends: 1122 [2024-11-11 17:14:25,582 INFO L226 Difference]: Without dead ends: 662 [2024-11-11 17:14:25,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:25,590 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 357 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:25,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 254 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-11 17:14:25,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-11 17:14:25,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2024-11-11 17:14:25,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.518910741301059) internal successors, (1004), 661 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:25,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1004 transitions. [2024-11-11 17:14:25,665 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1004 transitions. Word has length 30 [2024-11-11 17:14:25,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:25,666 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1004 transitions. [2024-11-11 17:14:25,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:25,667 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1004 transitions. [2024-11-11 17:14:25,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-11 17:14:25,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:25,670 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:14:25,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 17:14:25,671 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:25,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:25,672 INFO L85 PathProgramCache]: Analyzing trace with hash 362114660, now seen corresponding path program 1 times [2024-11-11 17:14:25,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:25,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14043116] [2024-11-11 17:14:25,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:25,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:25,953 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 17:14:25,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:25,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14043116] [2024-11-11 17:14:25,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14043116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:25,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:14:25,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 17:14:25,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541745625] [2024-11-11 17:14:25,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:25,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:14:25,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:25,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:14:25,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:25,959 INFO L87 Difference]: Start difference. First operand 662 states and 1004 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:27,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:27,232 INFO L93 Difference]: Finished difference Result 1982 states and 3008 transitions. [2024-11-11 17:14:27,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:14:27,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-11 17:14:27,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:27,238 INFO L225 Difference]: With dead ends: 1982 [2024-11-11 17:14:27,238 INFO L226 Difference]: Without dead ends: 1322 [2024-11-11 17:14:27,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:27,242 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 270 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:27,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 218 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 17:14:27,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2024-11-11 17:14:27,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1320. [2024-11-11 17:14:27,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 1.4564063684609552) internal successors, (1921), 1319 states have internal predecessors, (1921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:27,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1921 transitions. [2024-11-11 17:14:27,287 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1921 transitions. Word has length 98 [2024-11-11 17:14:27,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:27,288 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 1921 transitions. [2024-11-11 17:14:27,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:27,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1921 transitions. [2024-11-11 17:14:27,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-11 17:14:27,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:27,291 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:14:27,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 17:14:27,291 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:27,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:27,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1767190707, now seen corresponding path program 1 times [2024-11-11 17:14:27,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:27,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289946197] [2024-11-11 17:14:27,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:27,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:27,449 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 17:14:27,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:27,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289946197] [2024-11-11 17:14:27,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289946197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:27,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:14:27,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 17:14:27,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560501157] [2024-11-11 17:14:27,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:27,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:14:27,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:27,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:14:27,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:27,452 INFO L87 Difference]: Start difference. First operand 1320 states and 1921 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:28,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:28,810 INFO L93 Difference]: Finished difference Result 3954 states and 5758 transitions. [2024-11-11 17:14:28,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:14:28,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-11 17:14:28,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:28,824 INFO L225 Difference]: With dead ends: 3954 [2024-11-11 17:14:28,824 INFO L226 Difference]: Without dead ends: 2636 [2024-11-11 17:14:28,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:28,829 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 369 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:28,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 155 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 17:14:28,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2024-11-11 17:14:28,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2024-11-11 17:14:28,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 2635 states have (on average 1.3248576850094878) internal successors, (3491), 2635 states have internal predecessors, (3491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:28,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3491 transitions. [2024-11-11 17:14:28,884 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 3491 transitions. Word has length 109 [2024-11-11 17:14:28,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:28,884 INFO L471 AbstractCegarLoop]: Abstraction has 2636 states and 3491 transitions. [2024-11-11 17:14:28,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:28,887 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 3491 transitions. [2024-11-11 17:14:28,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-11 17:14:28,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:28,891 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:14:28,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 17:14:28,891 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:28,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:28,892 INFO L85 PathProgramCache]: Analyzing trace with hash 23503691, now seen corresponding path program 1 times [2024-11-11 17:14:28,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:28,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900278062] [2024-11-11 17:14:28,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:28,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 17:14:29,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:29,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900278062] [2024-11-11 17:14:29,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900278062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:29,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:14:29,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 17:14:29,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041617252] [2024-11-11 17:14:29,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:29,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:14:29,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:29,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:14:29,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:29,102 INFO L87 Difference]: Start difference. First operand 2636 states and 3491 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:30,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:30,217 INFO L93 Difference]: Finished difference Result 6586 states and 8550 transitions. [2024-11-11 17:14:30,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:14:30,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2024-11-11 17:14:30,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:30,231 INFO L225 Difference]: With dead ends: 6586 [2024-11-11 17:14:30,232 INFO L226 Difference]: Without dead ends: 3952 [2024-11-11 17:14:30,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:30,238 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 278 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:30,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 83 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 17:14:30,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2024-11-11 17:14:30,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952. [2024-11-11 17:14:30,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3952 states, 3951 states have (on average 1.2171602126044039) internal successors, (4809), 3951 states have internal predecessors, (4809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:30,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 4809 transitions. [2024-11-11 17:14:30,318 INFO L78 Accepts]: Start accepts. Automaton has 3952 states and 4809 transitions. Word has length 161 [2024-11-11 17:14:30,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:30,319 INFO L471 AbstractCegarLoop]: Abstraction has 3952 states and 4809 transitions. [2024-11-11 17:14:30,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 2 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:30,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3952 states and 4809 transitions. [2024-11-11 17:14:30,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-11 17:14:30,323 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:30,323 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:14:30,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 17:14:30,324 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:30,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:30,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1141603143, now seen corresponding path program 1 times [2024-11-11 17:14:30,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:30,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588713546] [2024-11-11 17:14:30,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:30,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:30,864 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 17:14:30,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:30,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588713546] [2024-11-11 17:14:30,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588713546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:14:30,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414562425] [2024-11-11 17:14:30,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:30,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:14:30,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:14:30,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 17:14:30,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 17:14:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:30,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:14:30,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:14:31,369 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-11 17:14:31,370 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:14:31,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414562425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:31,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:14:31,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-11 17:14:31,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763027214] [2024-11-11 17:14:31,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:31,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:14:31,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:31,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:14:31,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 17:14:31,373 INFO L87 Difference]: Start difference. First operand 3952 states and 4809 transitions. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 2 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:32,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:32,246 INFO L93 Difference]: Finished difference Result 5270 states and 6254 transitions. [2024-11-11 17:14:32,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:14:32,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 2 states have internal predecessors, (239), 0 states have call successors, (0), 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 265 [2024-11-11 17:14:32,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:32,264 INFO L225 Difference]: With dead ends: 5270 [2024-11-11 17:14:32,264 INFO L226 Difference]: Without dead ends: 5268 [2024-11-11 17:14:32,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-11 17:14:32,266 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 117 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:32,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 158 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 17:14:32,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5268 states. [2024-11-11 17:14:32,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5268 to 4610. [2024-11-11 17:14:32,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4610 states, 4609 states have (on average 1.206552397483185) internal successors, (5561), 4609 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) [2024-11-11 17:14:32,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 5561 transitions. [2024-11-11 17:14:32,346 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 5561 transitions. Word has length 265 [2024-11-11 17:14:32,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:32,346 INFO L471 AbstractCegarLoop]: Abstraction has 4610 states and 5561 transitions. [2024-11-11 17:14:32,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 2 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:32,347 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 5561 transitions. [2024-11-11 17:14:32,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-11-11 17:14:32,352 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:32,352 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:14:32,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-11 17:14:32,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:14:32,554 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:32,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:32,556 INFO L85 PathProgramCache]: Analyzing trace with hash -913328967, now seen corresponding path program 1 times [2024-11-11 17:14:32,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:32,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376278674] [2024-11-11 17:14:32,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:32,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:33,289 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-11 17:14:33,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:33,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376278674] [2024-11-11 17:14:33,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376278674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:33,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:14:33,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:14:33,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803701447] [2024-11-11 17:14:33,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:33,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 17:14:33,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:33,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 17:14:33,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 17:14:33,294 INFO L87 Difference]: Start difference. First operand 4610 states and 5561 transitions. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:34,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:34,763 INFO L93 Difference]: Finished difference Result 9547 states and 11461 transitions. [2024-11-11 17:14:34,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 17:14:34,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 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 386 [2024-11-11 17:14:34,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:34,777 INFO L225 Difference]: With dead ends: 9547 [2024-11-11 17:14:34,777 INFO L226 Difference]: Without dead ends: 4939 [2024-11-11 17:14:34,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 17:14:34,781 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 127 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:34,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 322 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 17:14:34,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4939 states. [2024-11-11 17:14:34,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4939 to 4939. [2024-11-11 17:14:34,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4939 states, 4938 states have (on average 1.194005670311867) internal successors, (5896), 4938 states have internal predecessors, (5896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:34,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4939 states to 4939 states and 5896 transitions. [2024-11-11 17:14:34,860 INFO L78 Accepts]: Start accepts. Automaton has 4939 states and 5896 transitions. Word has length 386 [2024-11-11 17:14:34,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:34,861 INFO L471 AbstractCegarLoop]: Abstraction has 4939 states and 5896 transitions. [2024-11-11 17:14:34,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:34,862 INFO L276 IsEmpty]: Start isEmpty. Operand 4939 states and 5896 transitions. [2024-11-11 17:14:34,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-11 17:14:34,869 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:34,870 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:14:34,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 17:14:34,870 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:34,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:34,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1431377464, now seen corresponding path program 1 times [2024-11-11 17:14:34,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:34,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530950244] [2024-11-11 17:14:34,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:34,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:35,691 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 286 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-11 17:14:35,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:35,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530950244] [2024-11-11 17:14:35,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530950244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:35,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:14:35,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 17:14:35,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361847718] [2024-11-11 17:14:35,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:35,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 17:14:35,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:35,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 17:14:35,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-11 17:14:35,696 INFO L87 Difference]: Start difference. First operand 4939 states and 5896 transitions. Second operand has 7 states, 7 states have (on average 56.42857142857143) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:37,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:37,472 INFO L93 Difference]: Finished difference Result 9406 states and 11302 transitions. [2024-11-11 17:14:37,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 17:14:37,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 56.42857142857143) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 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 473 [2024-11-11 17:14:37,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:37,488 INFO L225 Difference]: With dead ends: 9406 [2024-11-11 17:14:37,488 INFO L226 Difference]: Without dead ends: 4610 [2024-11-11 17:14:37,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-11 17:14:37,495 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 308 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1981 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 2466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 1981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:37,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 291 Invalid, 2466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 1981 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 17:14:37,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4610 states. [2024-11-11 17:14:37,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4610 to 4610. [2024-11-11 17:14:37,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4610 states, 4609 states have (on average 1.0744196137990887) internal successors, (4952), 4609 states have internal predecessors, (4952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:37,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 4952 transitions. [2024-11-11 17:14:37,567 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 4952 transitions. Word has length 473 [2024-11-11 17:14:37,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:37,568 INFO L471 AbstractCegarLoop]: Abstraction has 4610 states and 4952 transitions. [2024-11-11 17:14:37,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.42857142857143) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:37,571 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 4952 transitions. [2024-11-11 17:14:37,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2024-11-11 17:14:37,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:37,581 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:14:37,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 17:14:37,582 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:37,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:37,583 INFO L85 PathProgramCache]: Analyzing trace with hash -330387158, now seen corresponding path program 1 times [2024-11-11 17:14:37,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:37,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677767117] [2024-11-11 17:14:37,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:37,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:38,241 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-11 17:14:38,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:38,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677767117] [2024-11-11 17:14:38,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677767117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:38,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:14:38,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:14:38,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506977785] [2024-11-11 17:14:38,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:38,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 17:14:38,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:38,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 17:14:38,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 17:14:38,244 INFO L87 Difference]: Start difference. First operand 4610 states and 4952 transitions. Second operand has 4 states, 4 states have (on average 118.5) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:39,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:39,501 INFO L93 Difference]: Finished difference Result 12839 states and 13874 transitions. [2024-11-11 17:14:39,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 17:14:39,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 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 501 [2024-11-11 17:14:39,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:39,527 INFO L225 Difference]: With dead ends: 12839 [2024-11-11 17:14:39,527 INFO L226 Difference]: Without dead ends: 8560 [2024-11-11 17:14:39,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 17:14:39,535 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 403 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:39,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 92 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 17:14:39,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8560 states. [2024-11-11 17:14:39,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8560 to 8558. [2024-11-11 17:14:39,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8558 states, 8557 states have (on average 1.0696505784737642) internal successors, (9153), 8557 states have internal predecessors, (9153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:39,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8558 states to 8558 states and 9153 transitions. [2024-11-11 17:14:39,668 INFO L78 Accepts]: Start accepts. Automaton has 8558 states and 9153 transitions. Word has length 501 [2024-11-11 17:14:39,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:39,669 INFO L471 AbstractCegarLoop]: Abstraction has 8558 states and 9153 transitions. [2024-11-11 17:14:39,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:39,670 INFO L276 IsEmpty]: Start isEmpty. Operand 8558 states and 9153 transitions. [2024-11-11 17:14:39,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2024-11-11 17:14:39,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:39,683 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:14:39,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 17:14:39,683 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:39,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:39,684 INFO L85 PathProgramCache]: Analyzing trace with hash 953348554, now seen corresponding path program 1 times [2024-11-11 17:14:39,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:39,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645359484] [2024-11-11 17:14:39,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:39,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:40,279 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 620 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-11 17:14:40,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:40,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645359484] [2024-11-11 17:14:40,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645359484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:40,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:14:40,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:14:40,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813021465] [2024-11-11 17:14:40,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:40,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:14:40,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:40,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:14:40,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:40,285 INFO L87 Difference]: Start difference. First operand 8558 states and 9153 transitions. Second operand has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:40,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:40,999 INFO L93 Difference]: Finished difference Result 20075 states and 21639 transitions. [2024-11-11 17:14:41,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:14:41,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 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 605 [2024-11-11 17:14:41,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:41,065 INFO L225 Difference]: With dead ends: 20075 [2024-11-11 17:14:41,066 INFO L226 Difference]: Without dead ends: 12177 [2024-11-11 17:14:41,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:41,075 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 224 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:41,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 38 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 17:14:41,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12177 states. [2024-11-11 17:14:41,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12177 to 12177. [2024-11-11 17:14:41,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12177 states, 12176 states have (on average 1.0727660972404731) internal successors, (13062), 12176 states have internal predecessors, (13062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:41,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12177 states to 12177 states and 13062 transitions. [2024-11-11 17:14:41,290 INFO L78 Accepts]: Start accepts. Automaton has 12177 states and 13062 transitions. Word has length 605 [2024-11-11 17:14:41,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:41,292 INFO L471 AbstractCegarLoop]: Abstraction has 12177 states and 13062 transitions. [2024-11-11 17:14:41,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.33333333333334) internal successors, (484), 3 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:41,293 INFO L276 IsEmpty]: Start isEmpty. Operand 12177 states and 13062 transitions. [2024-11-11 17:14:41,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2024-11-11 17:14:41,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:41,307 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:14:41,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 17:14:41,307 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:41,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:41,308 INFO L85 PathProgramCache]: Analyzing trace with hash 378494801, now seen corresponding path program 1 times [2024-11-11 17:14:41,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:41,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288479048] [2024-11-11 17:14:41,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:41,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:42,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 655 proven. 156 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-11 17:14:42,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:42,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288479048] [2024-11-11 17:14:42,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288479048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:14:42,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589568203] [2024-11-11 17:14:42,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:42,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:14:42,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:14:42,843 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 17:14:42,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 17:14:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:43,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:14:43,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:14:43,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 536 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2024-11-11 17:14:43,250 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:14:43,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589568203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:43,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:14:43,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-11 17:14:43,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044969090] [2024-11-11 17:14:43,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:43,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:14:43,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:43,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:14:43,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-11 17:14:43,254 INFO L87 Difference]: Start difference. First operand 12177 states and 13062 transitions. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:44,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:44,203 INFO L93 Difference]: Finished difference Result 26655 states and 28750 transitions. [2024-11-11 17:14:44,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:14:44,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 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 724 [2024-11-11 17:14:44,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:44,274 INFO L225 Difference]: With dead ends: 26655 [2024-11-11 17:14:44,275 INFO L226 Difference]: Without dead ends: 15138 [2024-11-11 17:14:44,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 723 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-11 17:14:44,285 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 239 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:44,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 31 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 17:14:44,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15138 states. [2024-11-11 17:14:44,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15138 to 13822. [2024-11-11 17:14:44,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13822 states, 13821 states have (on average 1.0820490557846756) internal successors, (14955), 13821 states have internal predecessors, (14955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:44,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13822 states to 13822 states and 14955 transitions. [2024-11-11 17:14:44,460 INFO L78 Accepts]: Start accepts. Automaton has 13822 states and 14955 transitions. Word has length 724 [2024-11-11 17:14:44,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:44,461 INFO L471 AbstractCegarLoop]: Abstraction has 13822 states and 14955 transitions. [2024-11-11 17:14:44,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:44,461 INFO L276 IsEmpty]: Start isEmpty. Operand 13822 states and 14955 transitions. [2024-11-11 17:14:44,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 726 [2024-11-11 17:14:44,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:44,472 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:14:44,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 17:14:44,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-11 17:14:44,673 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:44,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:44,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1914046436, now seen corresponding path program 1 times [2024-11-11 17:14:44,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:44,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349992646] [2024-11-11 17:14:44,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:44,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:45,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 813 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-11 17:14:45,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:45,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349992646] [2024-11-11 17:14:45,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349992646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:45,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:14:45,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:14:45,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350898197] [2024-11-11 17:14:45,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:45,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 17:14:45,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:45,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 17:14:45,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 17:14:45,690 INFO L87 Difference]: Start difference. First operand 13822 states and 14955 transitions. Second operand has 4 states, 4 states have (on average 130.75) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:46,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:46,466 INFO L93 Difference]: Finished difference Result 26984 states and 29241 transitions. [2024-11-11 17:14:46,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:14:46,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 130.75) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 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 725 [2024-11-11 17:14:46,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:46,490 INFO L225 Difference]: With dead ends: 26984 [2024-11-11 17:14:46,490 INFO L226 Difference]: Without dead ends: 13822 [2024-11-11 17:14:46,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 17:14:46,504 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 268 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:46,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 113 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 17:14:46,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13822 states. [2024-11-11 17:14:46,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13822 to 13822. [2024-11-11 17:14:46,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13822 states, 13821 states have (on average 1.0818319947905362) internal successors, (14952), 13821 states have internal predecessors, (14952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:46,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13822 states to 13822 states and 14952 transitions. [2024-11-11 17:14:46,769 INFO L78 Accepts]: Start accepts. Automaton has 13822 states and 14952 transitions. Word has length 725 [2024-11-11 17:14:46,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:46,770 INFO L471 AbstractCegarLoop]: Abstraction has 13822 states and 14952 transitions. [2024-11-11 17:14:46,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.75) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:46,770 INFO L276 IsEmpty]: Start isEmpty. Operand 13822 states and 14952 transitions. [2024-11-11 17:14:46,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2024-11-11 17:14:46,780 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:46,781 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:14:46,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 17:14:46,782 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:46,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:46,783 INFO L85 PathProgramCache]: Analyzing trace with hash 523284694, now seen corresponding path program 1 times [2024-11-11 17:14:46,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:46,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800003506] [2024-11-11 17:14:46,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:46,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:47,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2024-11-11 17:14:47,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:47,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800003506] [2024-11-11 17:14:47,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800003506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:47,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:14:47,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:14:47,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241009924] [2024-11-11 17:14:47,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:47,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:14:47,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:47,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:14:47,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:47,731 INFO L87 Difference]: Start difference. First operand 13822 states and 14952 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:48,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:48,412 INFO L93 Difference]: Finished difference Result 26984 states and 29238 transitions. [2024-11-11 17:14:48,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:14:48,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 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 786 [2024-11-11 17:14:48,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:48,437 INFO L225 Difference]: With dead ends: 26984 [2024-11-11 17:14:48,437 INFO L226 Difference]: Without dead ends: 13822 [2024-11-11 17:14:48,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:48,452 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 337 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:48,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 377 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 17:14:48,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13822 states. [2024-11-11 17:14:48,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13822 to 13822. [2024-11-11 17:14:48,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13822 states, 13821 states have (on average 1.071919542724839) internal successors, (14815), 13821 states have internal predecessors, (14815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:48,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13822 states to 13822 states and 14815 transitions. [2024-11-11 17:14:48,594 INFO L78 Accepts]: Start accepts. Automaton has 13822 states and 14815 transitions. Word has length 786 [2024-11-11 17:14:48,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:48,595 INFO L471 AbstractCegarLoop]: Abstraction has 13822 states and 14815 transitions. [2024-11-11 17:14:48,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:48,595 INFO L276 IsEmpty]: Start isEmpty. Operand 13822 states and 14815 transitions. [2024-11-11 17:14:48,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 922 [2024-11-11 17:14:48,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:48,614 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:14:48,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 17:14:48,614 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:48,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:48,616 INFO L85 PathProgramCache]: Analyzing trace with hash -380649607, now seen corresponding path program 1 times [2024-11-11 17:14:48,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:48,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567312009] [2024-11-11 17:14:48,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:48,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:49,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1994 backedges. 904 proven. 0 refuted. 0 times theorem prover too weak. 1090 trivial. 0 not checked. [2024-11-11 17:14:49,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:49,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567312009] [2024-11-11 17:14:49,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567312009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:49,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:14:49,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:14:49,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407793914] [2024-11-11 17:14:49,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:49,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:14:49,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:49,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:14:49,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:49,209 INFO L87 Difference]: Start difference. First operand 13822 states and 14815 transitions. Second operand has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:49,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:49,928 INFO L93 Difference]: Finished difference Result 31590 states and 33965 transitions. [2024-11-11 17:14:49,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:14:49,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 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 921 [2024-11-11 17:14:49,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:49,952 INFO L225 Difference]: With dead ends: 31590 [2024-11-11 17:14:49,952 INFO L226 Difference]: Without dead ends: 16783 [2024-11-11 17:14:49,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:49,967 INFO L435 NwaCegarLoop]: 424 mSDtfsCounter, 270 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:49,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 430 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 17:14:49,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16783 states. [2024-11-11 17:14:50,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16783 to 16454. [2024-11-11 17:14:50,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16454 states, 16453 states have (on average 1.0578617881237464) internal successors, (17405), 16453 states have internal predecessors, (17405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:50,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16454 states to 16454 states and 17405 transitions. [2024-11-11 17:14:50,151 INFO L78 Accepts]: Start accepts. Automaton has 16454 states and 17405 transitions. Word has length 921 [2024-11-11 17:14:50,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:50,152 INFO L471 AbstractCegarLoop]: Abstraction has 16454 states and 17405 transitions. [2024-11-11 17:14:50,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:50,152 INFO L276 IsEmpty]: Start isEmpty. Operand 16454 states and 17405 transitions. [2024-11-11 17:14:50,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1191 [2024-11-11 17:14:50,229 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:50,229 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:14:50,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 17:14:50,230 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:50,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:50,231 INFO L85 PathProgramCache]: Analyzing trace with hash -420534327, now seen corresponding path program 1 times [2024-11-11 17:14:50,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:50,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782955570] [2024-11-11 17:14:50,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:50,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:51,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2912 backedges. 1028 proven. 0 refuted. 0 times theorem prover too weak. 1884 trivial. 0 not checked. [2024-11-11 17:14:51,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:51,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782955570] [2024-11-11 17:14:51,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782955570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:51,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:14:51,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:14:51,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345150713] [2024-11-11 17:14:51,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:51,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:14:51,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:51,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:14:51,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:51,094 INFO L87 Difference]: Start difference. First operand 16454 states and 17405 transitions. Second operand has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:51,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:51,781 INFO L93 Difference]: Finished difference Result 34880 states and 36955 transitions. [2024-11-11 17:14:51,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:14:51,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 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 1190 [2024-11-11 17:14:51,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:51,800 INFO L225 Difference]: With dead ends: 34880 [2024-11-11 17:14:51,801 INFO L226 Difference]: Without dead ends: 17112 [2024-11-11 17:14:51,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:51,815 INFO L435 NwaCegarLoop]: 406 mSDtfsCounter, 272 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:51,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 412 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 17:14:51,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17112 states. [2024-11-11 17:14:52,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17112 to 16454. [2024-11-11 17:14:52,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16454 states, 16453 states have (on average 1.0452804959581838) internal successors, (17198), 16453 states have internal predecessors, (17198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:52,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16454 states to 16454 states and 17198 transitions. [2024-11-11 17:14:52,066 INFO L78 Accepts]: Start accepts. Automaton has 16454 states and 17198 transitions. Word has length 1190 [2024-11-11 17:14:52,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:52,067 INFO L471 AbstractCegarLoop]: Abstraction has 16454 states and 17198 transitions. [2024-11-11 17:14:52,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:52,068 INFO L276 IsEmpty]: Start isEmpty. Operand 16454 states and 17198 transitions. [2024-11-11 17:14:52,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1310 [2024-11-11 17:14:52,091 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:52,092 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:14:52,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 17:14:52,092 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:52,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:52,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1487409259, now seen corresponding path program 1 times [2024-11-11 17:14:52,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:52,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409511132] [2024-11-11 17:14:52,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:52,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:53,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3993 backedges. 2605 proven. 0 refuted. 0 times theorem prover too weak. 1388 trivial. 0 not checked. [2024-11-11 17:14:53,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:53,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409511132] [2024-11-11 17:14:53,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409511132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:53,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:14:53,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:14:53,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848547832] [2024-11-11 17:14:53,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:53,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:14:53,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:53,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:14:53,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:53,255 INFO L87 Difference]: Start difference. First operand 16454 states and 17198 transitions. Second operand has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:53,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:53,931 INFO L93 Difference]: Finished difference Result 33564 states and 35098 transitions. [2024-11-11 17:14:53,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:14:53,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 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 1309 [2024-11-11 17:14:53,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:53,947 INFO L225 Difference]: With dead ends: 33564 [2024-11-11 17:14:53,947 INFO L226 Difference]: Without dead ends: 17770 [2024-11-11 17:14:53,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:14:53,959 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 203 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:53,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 48 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 17:14:53,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17770 states. [2024-11-11 17:14:54,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17770 to 17441. [2024-11-11 17:14:54,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17441 states, 17440 states have (on average 1.0406536697247706) internal successors, (18149), 17440 states have internal predecessors, (18149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:54,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17441 states to 17441 states and 18149 transitions. [2024-11-11 17:14:54,120 INFO L78 Accepts]: Start accepts. Automaton has 17441 states and 18149 transitions. Word has length 1309 [2024-11-11 17:14:54,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:54,121 INFO L471 AbstractCegarLoop]: Abstraction has 17441 states and 18149 transitions. [2024-11-11 17:14:54,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:54,122 INFO L276 IsEmpty]: Start isEmpty. Operand 17441 states and 18149 transitions. [2024-11-11 17:14:54,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1335 [2024-11-11 17:14:54,145 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:54,145 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-11 17:14:54,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 17:14:54,146 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:54,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:54,147 INFO L85 PathProgramCache]: Analyzing trace with hash -760390559, now seen corresponding path program 1 times [2024-11-11 17:14:54,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:54,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574930613] [2024-11-11 17:14:54,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:54,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:55,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3447 backedges. 647 proven. 1424 refuted. 0 times theorem prover too weak. 1376 trivial. 0 not checked. [2024-11-11 17:14:55,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:55,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574930613] [2024-11-11 17:14:55,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574930613] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:14:55,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988289662] [2024-11-11 17:14:55,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:55,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:14:55,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:14:55,728 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 17:14:55,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 17:14:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:56,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 1565 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:14:56,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:14:56,299 INFO L134 CoverageAnalysis]: Checked inductivity of 3447 backedges. 696 proven. 0 refuted. 0 times theorem prover too weak. 2751 trivial. 0 not checked. [2024-11-11 17:14:56,299 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:14:56,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988289662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:56,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:14:56,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-11 17:14:56,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928825156] [2024-11-11 17:14:56,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:56,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:14:56,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:56,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:14:56,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:14:56,304 INFO L87 Difference]: Start difference. First operand 17441 states and 18149 transitions. Second operand has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:57,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:57,043 INFO L93 Difference]: Finished difference Result 34551 states and 35965 transitions. [2024-11-11 17:14:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:14:57,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 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 1334 [2024-11-11 17:14:57,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:57,064 INFO L225 Difference]: With dead ends: 34551 [2024-11-11 17:14:57,064 INFO L226 Difference]: Without dead ends: 17441 [2024-11-11 17:14:57,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1339 GetRequests, 1335 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:14:57,078 INFO L435 NwaCegarLoop]: 357 mSDtfsCounter, 271 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:57,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 362 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 17:14:57,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17441 states. [2024-11-11 17:14:57,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17441 to 16783. [2024-11-11 17:14:57,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16783 states, 16782 states have (on average 1.0309259921344298) internal successors, (17301), 16782 states have internal predecessors, (17301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:57,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16783 states to 16783 states and 17301 transitions. [2024-11-11 17:14:57,246 INFO L78 Accepts]: Start accepts. Automaton has 16783 states and 17301 transitions. Word has length 1334 [2024-11-11 17:14:57,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:57,247 INFO L471 AbstractCegarLoop]: Abstraction has 16783 states and 17301 transitions. [2024-11-11 17:14:57,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:57,248 INFO L276 IsEmpty]: Start isEmpty. Operand 16783 states and 17301 transitions. [2024-11-11 17:14:57,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1403 [2024-11-11 17:14:57,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:57,275 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-11 17:14:57,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 17:14:57,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:14:57,476 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:57,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:57,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1463104337, now seen corresponding path program 1 times [2024-11-11 17:14:57,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:57,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356255771] [2024-11-11 17:14:57,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:57,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:14:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:14:58,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3692 backedges. 2477 proven. 0 refuted. 0 times theorem prover too weak. 1215 trivial. 0 not checked. [2024-11-11 17:14:58,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:14:58,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356255771] [2024-11-11 17:14:58,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356255771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:14:58,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:14:58,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 17:14:58,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266209706] [2024-11-11 17:14:58,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:14:58,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 17:14:58,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:14:58,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 17:14:58,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:14:58,698 INFO L87 Difference]: Start difference. First operand 16783 states and 17301 transitions. Second operand has 6 states, 6 states have (on average 127.16666666666667) internal successors, (763), 6 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:59,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:14:59,779 INFO L93 Difference]: Finished difference Result 32907 states and 33939 transitions. [2024-11-11 17:14:59,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 17:14:59,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 127.16666666666667) internal successors, (763), 6 states have internal predecessors, (763), 0 states have call successors, (0), 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 1402 [2024-11-11 17:14:59,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:14:59,851 INFO L225 Difference]: With dead ends: 32907 [2024-11-11 17:14:59,851 INFO L226 Difference]: Without dead ends: 16784 [2024-11-11 17:14:59,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-11 17:14:59,856 INFO L435 NwaCegarLoop]: 422 mSDtfsCounter, 284 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 1870 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 1875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 17:14:59,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 440 Invalid, 1875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1870 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 17:14:59,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16784 states. [2024-11-11 17:14:59,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16784 to 16783. [2024-11-11 17:14:59,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16783 states, 16782 states have (on average 1.030687641520677) internal successors, (17297), 16782 states have internal predecessors, (17297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:59,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16783 states to 16783 states and 17297 transitions. [2024-11-11 17:14:59,970 INFO L78 Accepts]: Start accepts. Automaton has 16783 states and 17297 transitions. Word has length 1402 [2024-11-11 17:14:59,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:14:59,970 INFO L471 AbstractCegarLoop]: Abstraction has 16783 states and 17297 transitions. [2024-11-11 17:14:59,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.16666666666667) internal successors, (763), 6 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:14:59,971 INFO L276 IsEmpty]: Start isEmpty. Operand 16783 states and 17297 transitions. [2024-11-11 17:14:59,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1417 [2024-11-11 17:14:59,984 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:14:59,985 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:14:59,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 17:14:59,985 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:14:59,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:14:59,986 INFO L85 PathProgramCache]: Analyzing trace with hash -779101752, now seen corresponding path program 1 times [2024-11-11 17:14:59,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:14:59,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473696236] [2024-11-11 17:14:59,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:14:59,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:15:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:15:01,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3537 backedges. 2411 proven. 0 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2024-11-11 17:15:01,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:15:01,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473696236] [2024-11-11 17:15:01,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473696236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:15:01,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:15:01,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 17:15:01,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782309493] [2024-11-11 17:15:01,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:15:01,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 17:15:01,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:15:01,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 17:15:01,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 17:15:01,406 INFO L87 Difference]: Start difference. First operand 16783 states and 17297 transitions. Second operand has 4 states, 4 states have (on average 190.5) internal successors, (762), 4 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:02,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:15:02,284 INFO L93 Difference]: Finished difference Result 32915 states and 33939 transitions. [2024-11-11 17:15:02,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 17:15:02,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 190.5) internal successors, (762), 4 states have internal predecessors, (762), 0 states have call successors, (0), 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 1416 [2024-11-11 17:15:02,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:15:02,299 INFO L225 Difference]: With dead ends: 32915 [2024-11-11 17:15:02,299 INFO L226 Difference]: Without dead ends: 16792 [2024-11-11 17:15:02,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-11 17:15:02,307 INFO L435 NwaCegarLoop]: 422 mSDtfsCounter, 217 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 17:15:02,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 436 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 17:15:02,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16792 states. [2024-11-11 17:15:02,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16792 to 16454. [2024-11-11 17:15:02,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16454 states, 16453 states have (on average 1.0307542697380416) internal successors, (16959), 16453 states have internal predecessors, (16959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:02,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16454 states to 16454 states and 16959 transitions. [2024-11-11 17:15:02,423 INFO L78 Accepts]: Start accepts. Automaton has 16454 states and 16959 transitions. Word has length 1416 [2024-11-11 17:15:02,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:15:02,424 INFO L471 AbstractCegarLoop]: Abstraction has 16454 states and 16959 transitions. [2024-11-11 17:15:02,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 190.5) internal successors, (762), 4 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:02,424 INFO L276 IsEmpty]: Start isEmpty. Operand 16454 states and 16959 transitions. [2024-11-11 17:15:02,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1432 [2024-11-11 17:15:02,438 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:15:02,438 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-11 17:15:02,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 17:15:02,438 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:15:02,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:15:02,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1298014862, now seen corresponding path program 1 times [2024-11-11 17:15:02,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:15:02,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303551249] [2024-11-11 17:15:02,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:15:02,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:15:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:15:03,146 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 2630 proven. 0 refuted. 0 times theorem prover too weak. 1192 trivial. 0 not checked. [2024-11-11 17:15:03,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:15:03,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303551249] [2024-11-11 17:15:03,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303551249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:15:03,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:15:03,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:15:03,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864988082] [2024-11-11 17:15:03,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:15:03,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:15:03,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:15:03,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:15:03,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:15:03,151 INFO L87 Difference]: Start difference. First operand 16454 states and 16959 transitions. Second operand has 3 states, 3 states have (on average 217.66666666666666) internal successors, (653), 3 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:03,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:15:03,872 INFO L93 Difference]: Finished difference Result 33235 states and 34260 transitions. [2024-11-11 17:15:03,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:15:03,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 217.66666666666666) internal successors, (653), 3 states have internal predecessors, (653), 0 states have call successors, (0), 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 1431 [2024-11-11 17:15:03,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:15:03,890 INFO L225 Difference]: With dead ends: 33235 [2024-11-11 17:15:03,891 INFO L226 Difference]: Without dead ends: 17441 [2024-11-11 17:15:03,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:15:03,902 INFO L435 NwaCegarLoop]: 414 mSDtfsCounter, 192 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 17:15:03,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 420 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 17:15:03,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17441 states. [2024-11-11 17:15:04,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17441 to 17112. [2024-11-11 17:15:04,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17112 states, 17111 states have (on average 1.0272923850154871) internal successors, (17578), 17111 states have internal predecessors, (17578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:04,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17112 states to 17112 states and 17578 transitions. [2024-11-11 17:15:04,096 INFO L78 Accepts]: Start accepts. Automaton has 17112 states and 17578 transitions. Word has length 1431 [2024-11-11 17:15:04,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:15:04,097 INFO L471 AbstractCegarLoop]: Abstraction has 17112 states and 17578 transitions. [2024-11-11 17:15:04,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.66666666666666) internal successors, (653), 3 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:04,097 INFO L276 IsEmpty]: Start isEmpty. Operand 17112 states and 17578 transitions. [2024-11-11 17:15:04,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1462 [2024-11-11 17:15:04,132 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:15:04,132 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2024-11-11 17:15:04,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 17:15:04,133 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:15:04,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:15:04,133 INFO L85 PathProgramCache]: Analyzing trace with hash -2009619031, now seen corresponding path program 1 times [2024-11-11 17:15:04,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:15:04,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107794777] [2024-11-11 17:15:04,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:15:04,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:15:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:15:05,899 INFO L134 CoverageAnalysis]: Checked inductivity of 3943 backedges. 2360 proven. 258 refuted. 0 times theorem prover too weak. 1325 trivial. 0 not checked. [2024-11-11 17:15:05,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:15:05,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107794777] [2024-11-11 17:15:05,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107794777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:15:05,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271376383] [2024-11-11 17:15:05,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:15:05,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:15:05,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:15:05,902 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 17:15:05,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 17:15:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:15:06,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 1690 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-11 17:15:06,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:15:07,762 INFO L134 CoverageAnalysis]: Checked inductivity of 3943 backedges. 2619 proven. 0 refuted. 0 times theorem prover too weak. 1324 trivial. 0 not checked. [2024-11-11 17:15:07,762 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:15:07,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271376383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:15:07,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:15:07,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-11 17:15:07,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912196970] [2024-11-11 17:15:07,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:15:07,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 17:15:07,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:15:07,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 17:15:07,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-11 17:15:07,765 INFO L87 Difference]: Start difference. First operand 17112 states and 17578 transitions. Second operand has 4 states, 4 states have (on average 193.25) internal successors, (773), 4 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:08,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:15:08,621 INFO L93 Difference]: Finished difference Result 33564 states and 34492 transitions. [2024-11-11 17:15:08,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 17:15:08,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 193.25) internal successors, (773), 4 states have internal predecessors, (773), 0 states have call successors, (0), 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 1461 [2024-11-11 17:15:08,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:15:08,636 INFO L225 Difference]: With dead ends: 33564 [2024-11-11 17:15:08,636 INFO L226 Difference]: Without dead ends: 17112 [2024-11-11 17:15:08,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1468 GetRequests, 1460 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-11 17:15:08,646 INFO L435 NwaCegarLoop]: 424 mSDtfsCounter, 120 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 17:15:08,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 553 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 17:15:08,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17112 states. [2024-11-11 17:15:08,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17112 to 17112. [2024-11-11 17:15:08,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17112 states, 17111 states have (on average 1.0268832914499444) internal successors, (17571), 17111 states have internal predecessors, (17571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:08,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17112 states to 17112 states and 17571 transitions. [2024-11-11 17:15:08,868 INFO L78 Accepts]: Start accepts. Automaton has 17112 states and 17571 transitions. Word has length 1461 [2024-11-11 17:15:08,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:15:08,869 INFO L471 AbstractCegarLoop]: Abstraction has 17112 states and 17571 transitions. [2024-11-11 17:15:08,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 193.25) internal successors, (773), 4 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:08,870 INFO L276 IsEmpty]: Start isEmpty. Operand 17112 states and 17571 transitions. [2024-11-11 17:15:08,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1467 [2024-11-11 17:15:08,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:15:08,892 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:15:08,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-11 17:15:09,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:15:09,094 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:15:09,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:15:09,094 INFO L85 PathProgramCache]: Analyzing trace with hash -585851202, now seen corresponding path program 1 times [2024-11-11 17:15:09,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:15:09,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914717901] [2024-11-11 17:15:09,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:15:09,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:15:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:15:10,913 INFO L134 CoverageAnalysis]: Checked inductivity of 4692 backedges. 2527 proven. 258 refuted. 0 times theorem prover too weak. 1907 trivial. 0 not checked. [2024-11-11 17:15:10,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:15:10,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914717901] [2024-11-11 17:15:10,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914717901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:15:10,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526517772] [2024-11-11 17:15:10,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:15:10,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:15:10,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:15:10,915 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 17:15:10,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 17:15:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:15:11,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 1713 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 17:15:11,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:15:11,616 INFO L134 CoverageAnalysis]: Checked inductivity of 4692 backedges. 2699 proven. 0 refuted. 0 times theorem prover too weak. 1993 trivial. 0 not checked. [2024-11-11 17:15:11,616 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:15:11,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526517772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:15:11,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:15:11,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-11 17:15:11,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432718618] [2024-11-11 17:15:11,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:15:11,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:15:11,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:15:11,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:15:11,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-11 17:15:11,620 INFO L87 Difference]: Start difference. First operand 17112 states and 17571 transitions. Second operand has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:12,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:15:12,352 INFO L93 Difference]: Finished difference Result 35538 states and 36517 transitions. [2024-11-11 17:15:12,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:15:12,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 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 1466 [2024-11-11 17:15:12,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:15:12,367 INFO L225 Difference]: With dead ends: 35538 [2024-11-11 17:15:12,367 INFO L226 Difference]: Without dead ends: 19086 [2024-11-11 17:15:12,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1471 GetRequests, 1465 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-11 17:15:12,376 INFO L435 NwaCegarLoop]: 415 mSDtfsCounter, 225 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 17:15:12,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 421 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 17:15:12,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19086 states. [2024-11-11 17:15:12,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19086 to 18757. [2024-11-11 17:15:12,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18757 states, 18756 states have (on average 1.0260716570697377) internal successors, (19245), 18756 states have internal predecessors, (19245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:12,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18757 states to 18757 states and 19245 transitions. [2024-11-11 17:15:12,504 INFO L78 Accepts]: Start accepts. Automaton has 18757 states and 19245 transitions. Word has length 1466 [2024-11-11 17:15:12,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:15:12,504 INFO L471 AbstractCegarLoop]: Abstraction has 18757 states and 19245 transitions. [2024-11-11 17:15:12,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:12,505 INFO L276 IsEmpty]: Start isEmpty. Operand 18757 states and 19245 transitions. [2024-11-11 17:15:12,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1518 [2024-11-11 17:15:12,520 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:15:12,520 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-11 17:15:12,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-11 17:15:12,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:15:12,721 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:15:12,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:15:12,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1392787145, now seen corresponding path program 1 times [2024-11-11 17:15:12,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:15:12,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045862350] [2024-11-11 17:15:12,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:15:12,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:15:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:15:13,822 INFO L134 CoverageAnalysis]: Checked inductivity of 4778 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 4527 trivial. 0 not checked. [2024-11-11 17:15:13,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:15:13,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045862350] [2024-11-11 17:15:13,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045862350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:15:13,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:15:13,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:15:13,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946314034] [2024-11-11 17:15:13,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:15:13,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:15:13,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:15:13,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:15:13,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:15:13,825 INFO L87 Difference]: Start difference. First operand 18757 states and 19245 transitions. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:14,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:15:14,681 INFO L93 Difference]: Finished difference Result 39157 states and 40185 transitions. [2024-11-11 17:15:14,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:15:14,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 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 1517 [2024-11-11 17:15:14,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:15:14,703 INFO L225 Difference]: With dead ends: 39157 [2024-11-11 17:15:14,703 INFO L226 Difference]: Without dead ends: 21060 [2024-11-11 17:15:14,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:15:14,718 INFO L435 NwaCegarLoop]: 405 mSDtfsCounter, 304 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 17:15:14,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 411 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 17:15:14,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21060 states. [2024-11-11 17:15:14,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21060 to 19086. [2024-11-11 17:15:14,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19086 states, 19085 states have (on average 1.026250982446948) internal successors, (19586), 19085 states have internal predecessors, (19586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:14,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19086 states to 19086 states and 19586 transitions. [2024-11-11 17:15:14,961 INFO L78 Accepts]: Start accepts. Automaton has 19086 states and 19586 transitions. Word has length 1517 [2024-11-11 17:15:14,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:15:14,962 INFO L471 AbstractCegarLoop]: Abstraction has 19086 states and 19586 transitions. [2024-11-11 17:15:14,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:14,963 INFO L276 IsEmpty]: Start isEmpty. Operand 19086 states and 19586 transitions. [2024-11-11 17:15:14,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1600 [2024-11-11 17:15:14,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:15:14,998 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2024-11-11 17:15:14,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-11 17:15:14,999 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:15:14,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:15:15,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1370411732, now seen corresponding path program 1 times [2024-11-11 17:15:15,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:15:15,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979936030] [2024-11-11 17:15:15,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:15:15,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:15:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:15:16,850 INFO L134 CoverageAnalysis]: Checked inductivity of 4944 backedges. 2731 proven. 258 refuted. 0 times theorem prover too weak. 1955 trivial. 0 not checked. [2024-11-11 17:15:16,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:15:16,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979936030] [2024-11-11 17:15:16,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979936030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:15:16,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599319069] [2024-11-11 17:15:16,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:15:16,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:15:16,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:15:16,852 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 17:15:16,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-11 17:15:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:15:17,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 1848 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 17:15:17,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:15:17,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4944 backedges. 3020 proven. 0 refuted. 0 times theorem prover too weak. 1924 trivial. 0 not checked. [2024-11-11 17:15:17,943 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:15:17,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599319069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:15:17,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:15:17,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-11 17:15:17,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419406439] [2024-11-11 17:15:17,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:15:17,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:15:17,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:15:17,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:15:17,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-11 17:15:17,946 INFO L87 Difference]: Start difference. First operand 19086 states and 19586 transitions. Second operand has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:18,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:15:18,612 INFO L93 Difference]: Finished difference Result 38499 states and 39514 transitions. [2024-11-11 17:15:18,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:15:18,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 0 states have call successors, (0), 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 1599 [2024-11-11 17:15:18,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:15:18,636 INFO L225 Difference]: With dead ends: 38499 [2024-11-11 17:15:18,636 INFO L226 Difference]: Without dead ends: 20073 [2024-11-11 17:15:18,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1604 GetRequests, 1598 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-11 17:15:18,649 INFO L435 NwaCegarLoop]: 424 mSDtfsCounter, 61 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 17:15:18,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 430 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 17:15:18,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20073 states. [2024-11-11 17:15:18,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20073 to 20073. [2024-11-11 17:15:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20073 states, 20072 states have (on average 1.0247110402550816) internal successors, (20568), 20072 states have internal predecessors, (20568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:18,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20073 states to 20073 states and 20568 transitions. [2024-11-11 17:15:18,807 INFO L78 Accepts]: Start accepts. Automaton has 20073 states and 20568 transitions. Word has length 1599 [2024-11-11 17:15:18,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:15:18,808 INFO L471 AbstractCegarLoop]: Abstraction has 20073 states and 20568 transitions. [2024-11-11 17:15:18,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.0) internal successors, (774), 3 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:18,808 INFO L276 IsEmpty]: Start isEmpty. Operand 20073 states and 20568 transitions. [2024-11-11 17:15:18,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1651 [2024-11-11 17:15:18,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:15:18,827 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-11 17:15:18,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-11 17:15:19,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:15:19,028 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:15:19,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:15:19,029 INFO L85 PathProgramCache]: Analyzing trace with hash 138817961, now seen corresponding path program 1 times [2024-11-11 17:15:19,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:15:19,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639684998] [2024-11-11 17:15:19,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:15:19,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:15:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:15:22,146 INFO L134 CoverageAnalysis]: Checked inductivity of 5072 backedges. 3657 proven. 98 refuted. 0 times theorem prover too weak. 1317 trivial. 0 not checked. [2024-11-11 17:15:22,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:15:22,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639684998] [2024-11-11 17:15:22,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639684998] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:15:22,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116200213] [2024-11-11 17:15:22,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:15:22,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:15:22,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:15:22,148 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 17:15:22,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-11 17:15:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:15:22,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 1903 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 17:15:22,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:15:22,824 INFO L134 CoverageAnalysis]: Checked inductivity of 5072 backedges. 2220 proven. 0 refuted. 0 times theorem prover too weak. 2852 trivial. 0 not checked. [2024-11-11 17:15:22,824 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:15:22,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116200213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:15:22,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:15:22,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-11 17:15:22,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274225671] [2024-11-11 17:15:22,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:15:22,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:15:22,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:15:22,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:15:22,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-11 17:15:22,829 INFO L87 Difference]: Start difference. First operand 20073 states and 20568 transitions. Second operand has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:23,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:15:23,510 INFO L93 Difference]: Finished difference Result 39815 states and 40810 transitions. [2024-11-11 17:15:23,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:15:23,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 0 states have call successors, (0), 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 1650 [2024-11-11 17:15:23,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:15:23,526 INFO L225 Difference]: With dead ends: 39815 [2024-11-11 17:15:23,526 INFO L226 Difference]: Without dead ends: 20402 [2024-11-11 17:15:23,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1664 GetRequests, 1657 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-11 17:15:23,536 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 98 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 17:15:23,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 52 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 17:15:23,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20402 states. [2024-11-11 17:15:23,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20402 to 20402. [2024-11-11 17:15:23,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20402 states, 20401 states have (on average 1.0241654820842117) internal successors, (20894), 20401 states have internal predecessors, (20894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:23,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20402 states to 20402 states and 20894 transitions. [2024-11-11 17:15:23,699 INFO L78 Accepts]: Start accepts. Automaton has 20402 states and 20894 transitions. Word has length 1650 [2024-11-11 17:15:23,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:15:23,700 INFO L471 AbstractCegarLoop]: Abstraction has 20402 states and 20894 transitions. [2024-11-11 17:15:23,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 20402 states and 20894 transitions. [2024-11-11 17:15:23,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1697 [2024-11-11 17:15:23,720 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:15:23,720 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:15:23,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-11 17:15:23,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:15:23,921 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:15:23,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:15:23,922 INFO L85 PathProgramCache]: Analyzing trace with hash 260574062, now seen corresponding path program 1 times [2024-11-11 17:15:23,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:15:23,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295862433] [2024-11-11 17:15:23,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:15:23,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:15:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:15:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 5896 backedges. 3174 proven. 0 refuted. 0 times theorem prover too weak. 2722 trivial. 0 not checked. [2024-11-11 17:15:25,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:15:25,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295862433] [2024-11-11 17:15:25,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295862433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:15:25,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 17:15:25,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 17:15:25,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444298639] [2024-11-11 17:15:25,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:15:25,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:15:25,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:15:25,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:15:25,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:15:25,196 INFO L87 Difference]: Start difference. First operand 20402 states and 20894 transitions. Second operand has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:26,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:15:26,010 INFO L93 Difference]: Finished difference Result 43434 states and 44480 transitions. [2024-11-11 17:15:26,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:15:26,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 0 states have call successors, (0), 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 1696 [2024-11-11 17:15:26,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:15:26,028 INFO L225 Difference]: With dead ends: 43434 [2024-11-11 17:15:26,028 INFO L226 Difference]: Without dead ends: 23692 [2024-11-11 17:15:26,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 17:15:26,036 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 209 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 17:15:26,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 43 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 17:15:26,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23692 states. [2024-11-11 17:15:26,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23692 to 22047. [2024-11-11 17:15:26,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22047 states, 22046 states have (on average 1.023587045268983) internal successors, (22566), 22046 states have internal predecessors, (22566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:26,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22047 states to 22047 states and 22566 transitions. [2024-11-11 17:15:26,217 INFO L78 Accepts]: Start accepts. Automaton has 22047 states and 22566 transitions. Word has length 1696 [2024-11-11 17:15:26,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:15:26,217 INFO L471 AbstractCegarLoop]: Abstraction has 22047 states and 22566 transitions. [2024-11-11 17:15:26,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:26,218 INFO L276 IsEmpty]: Start isEmpty. Operand 22047 states and 22566 transitions. [2024-11-11 17:15:26,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1700 [2024-11-11 17:15:26,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:15:26,240 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:15:26,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-11 17:15:26,240 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:15:26,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:15:26,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1865787988, now seen corresponding path program 1 times [2024-11-11 17:15:26,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:15:26,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027431020] [2024-11-11 17:15:26,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:15:26,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:15:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:15:28,020 INFO L134 CoverageAnalysis]: Checked inductivity of 5811 backedges. 3051 proven. 258 refuted. 0 times theorem prover too weak. 2502 trivial. 0 not checked. [2024-11-11 17:15:28,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:15:28,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027431020] [2024-11-11 17:15:28,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027431020] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:15:28,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720003839] [2024-11-11 17:15:28,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:15:28,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:15:28,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:15:28,023 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 17:15:28,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-11 17:15:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:15:28,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 1976 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 17:15:28,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:15:28,650 INFO L134 CoverageAnalysis]: Checked inductivity of 5811 backedges. 3214 proven. 0 refuted. 0 times theorem prover too weak. 2597 trivial. 0 not checked. [2024-11-11 17:15:28,651 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:15:28,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720003839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:15:28,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:15:28,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-11 17:15:28,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852995818] [2024-11-11 17:15:28,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:15:28,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:15:28,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:15:28,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:15:28,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-11 17:15:28,654 INFO L87 Difference]: Start difference. First operand 22047 states and 22566 transitions. Second operand has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:29,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 17:15:29,304 INFO L93 Difference]: Finished difference Result 43434 states and 44468 transitions. [2024-11-11 17:15:29,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 17:15:29,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 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 1699 [2024-11-11 17:15:29,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 17:15:29,322 INFO L225 Difference]: With dead ends: 43434 [2024-11-11 17:15:29,323 INFO L226 Difference]: Without dead ends: 22047 [2024-11-11 17:15:29,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1704 GetRequests, 1698 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-11 17:15:29,335 INFO L435 NwaCegarLoop]: 410 mSDtfsCounter, 85 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 17:15:29,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 416 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 17:15:29,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22047 states. [2024-11-11 17:15:29,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22047 to 21389. [2024-11-11 17:15:29,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21389 states, 21388 states have (on average 1.0228165326351224) internal successors, (21876), 21388 states have internal predecessors, (21876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:29,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21389 states to 21389 states and 21876 transitions. [2024-11-11 17:15:29,504 INFO L78 Accepts]: Start accepts. Automaton has 21389 states and 21876 transitions. Word has length 1699 [2024-11-11 17:15:29,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 17:15:29,504 INFO L471 AbstractCegarLoop]: Abstraction has 21389 states and 21876 transitions. [2024-11-11 17:15:29,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 17:15:29,505 INFO L276 IsEmpty]: Start isEmpty. Operand 21389 states and 21876 transitions. [2024-11-11 17:15:29,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1738 [2024-11-11 17:15:29,524 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 17:15:29,524 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 17:15:29,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-11 17:15:29,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-11 17:15:29,725 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 17:15:29,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 17:15:29,726 INFO L85 PathProgramCache]: Analyzing trace with hash 986179937, now seen corresponding path program 1 times [2024-11-11 17:15:29,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 17:15:29,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544399117] [2024-11-11 17:15:29,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:15:29,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 17:15:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:15:31,665 INFO L134 CoverageAnalysis]: Checked inductivity of 6627 backedges. 4877 proven. 41 refuted. 0 times theorem prover too weak. 1709 trivial. 0 not checked. [2024-11-11 17:15:31,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 17:15:31,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544399117] [2024-11-11 17:15:31,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544399117] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 17:15:31,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719664251] [2024-11-11 17:15:31,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 17:15:31,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 17:15:31,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 17:15:31,668 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 17:15:31,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-11 17:15:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 17:15:32,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 2036 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 17:15:32,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 17:15:32,557 INFO L134 CoverageAnalysis]: Checked inductivity of 6627 backedges. 3535 proven. 0 refuted. 0 times theorem prover too weak. 3092 trivial. 0 not checked. [2024-11-11 17:15:32,558 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 17:15:32,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719664251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 17:15:32,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 17:15:32,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-11 17:15:32,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269183261] [2024-11-11 17:15:32,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 17:15:32,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 17:15:32,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 17:15:32,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 17:15:32,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-11 17:15:32,561 INFO L87 Difference]: Start difference. First operand 21389 states and 21876 transitions. Second operand has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)