./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem17_label24.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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/Problem17_label24.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 b3ef3977d042afb4071915ce97341123de4af0d70f58c82feb0983ea770e3ba0 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 11:39:11,388 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 11:39:11,439 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 11:39:11,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 11:39:11,445 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 11:39:11,470 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 11:39:11,474 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 11:39:11,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 11:39:11,475 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 11:39:11,475 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 11:39:11,475 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 11:39:11,476 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 11:39:11,476 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 11:39:11,476 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 11:39:11,477 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 11:39:11,477 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 11:39:11,477 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 11:39:11,477 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 11:39:11,477 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 11:39:11,478 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 11:39:11,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 11:39:11,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 11:39:11,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 11:39:11,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 11:39:11,483 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 11:39:11,483 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 11:39:11,484 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 11:39:11,484 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 11:39:11,484 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 11:39:11,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 11:39:11,485 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 11:39:11,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 11:39:11,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:39:11,485 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 11:39:11,486 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 11:39:11,486 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 11:39:11,486 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 11:39:11,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 11:39:11,486 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 11:39:11,487 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 11:39:11,487 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 11:39:11,487 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 11:39:11,487 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3ef3977d042afb4071915ce97341123de4af0d70f58c82feb0983ea770e3ba0 [2024-11-08 11:39:11,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 11:39:11,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 11:39:11,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 11:39:11,701 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 11:39:11,701 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 11:39:11,702 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem17_label24.c [2024-11-08 11:39:13,038 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 11:39:13,351 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 11:39:13,352 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label24.c [2024-11-08 11:39:13,373 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0a1bc763/095af49def1a443ca6d43cfce0c125e7/FLAGb681acba6 [2024-11-08 11:39:13,387 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0a1bc763/095af49def1a443ca6d43cfce0c125e7 [2024-11-08 11:39:13,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 11:39:13,390 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 11:39:13,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 11:39:13,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 11:39:13,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 11:39:13,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:39:13" (1/1) ... [2024-11-08 11:39:13,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d610236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:13, skipping insertion in model container [2024-11-08 11:39:13,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:39:13" (1/1) ... [2024-11-08 11:39:13,499 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 11:39:13,728 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/Problem17_label24.c[8922,8935] [2024-11-08 11:39:14,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:39:14,093 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 11:39:14,120 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/Problem17_label24.c[8922,8935] [2024-11-08 11:39:14,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:39:14,326 INFO L204 MainTranslator]: Completed translation [2024-11-08 11:39:14,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:14 WrapperNode [2024-11-08 11:39:14,327 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 11:39:14,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 11:39:14,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 11:39:14,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 11:39:14,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:14" (1/1) ... [2024-11-08 11:39:14,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:14" (1/1) ... [2024-11-08 11:39:14,584 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2613 [2024-11-08 11:39:14,584 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 11:39:14,585 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 11:39:14,585 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 11:39:14,585 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 11:39:14,595 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:14" (1/1) ... [2024-11-08 11:39:14,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:14" (1/1) ... [2024-11-08 11:39:14,624 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:14" (1/1) ... [2024-11-08 11:39:14,815 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]. [2024-11-08 11:39:14,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:14" (1/1) ... [2024-11-08 11:39:14,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:14" (1/1) ... [2024-11-08 11:39:14,865 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:14" (1/1) ... [2024-11-08 11:39:14,885 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:14" (1/1) ... [2024-11-08 11:39:14,902 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:14" (1/1) ... [2024-11-08 11:39:14,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:14" (1/1) ... [2024-11-08 11:39:14,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 11:39:14,942 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 11:39:14,942 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 11:39:14,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 11:39:14,943 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:14" (1/1) ... [2024-11-08 11:39:14,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:39:14,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:39:14,969 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) [2024-11-08 11:39:14,971 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 [2024-11-08 11:39:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 11:39:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 11:39:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 11:39:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 11:39:15,062 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 11:39:15,063 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 11:39:17,646 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-11-08 11:39:17,647 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 11:39:17,667 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 11:39:17,667 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 11:39:17,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:39:17 BoogieIcfgContainer [2024-11-08 11:39:17,668 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 11:39:17,669 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 11:39:17,669 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 11:39:17,673 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 11:39:17,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:39:13" (1/3) ... [2024-11-08 11:39:17,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533c69c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:39:17, skipping insertion in model container [2024-11-08 11:39:17,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:39:14" (2/3) ... [2024-11-08 11:39:17,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533c69c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:39:17, skipping insertion in model container [2024-11-08 11:39:17,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:39:17" (3/3) ... [2024-11-08 11:39:17,675 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label24.c [2024-11-08 11:39:17,688 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 11:39:17,689 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 11:39:17,778 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 11:39:17,783 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;@4d1a885d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 11:39:17,783 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 11:39:17,788 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:17,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-08 11:39:17,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:17,795 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:17,796 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:17,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:17,800 INFO L85 PathProgramCache]: Analyzing trace with hash -634083006, now seen corresponding path program 1 times [2024-11-08 11:39:17,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:17,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877011997] [2024-11-08 11:39:17,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:17,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:18,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:39:18,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:18,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877011997] [2024-11-08 11:39:18,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877011997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:18,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:18,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:39:18,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780971206] [2024-11-08 11:39:18,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:18,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:18,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:18,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:18,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:18,074 INFO L87 Difference]: Start difference. First operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 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 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:20,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:20,091 INFO L93 Difference]: Finished difference Result 1644 states and 3029 transitions. [2024-11-08 11:39:20,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:20,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-08 11:39:20,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:20,107 INFO L225 Difference]: With dead ends: 1644 [2024-11-08 11:39:20,107 INFO L226 Difference]: Without dead ends: 977 [2024-11-08 11:39:20,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:20,114 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 428 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:20,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 503 Invalid, 1802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 11:39:20,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-11-08 11:39:20,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 971. [2024-11-08 11:39:20,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 970 states have (on average 1.5536082474226804) internal successors, (1507), 970 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:20,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1507 transitions. [2024-11-08 11:39:20,236 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1507 transitions. Word has length 60 [2024-11-08 11:39:20,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:20,237 INFO L471 AbstractCegarLoop]: Abstraction has 971 states and 1507 transitions. [2024-11-08 11:39:20,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:20,237 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1507 transitions. [2024-11-08 11:39:20,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 11:39:20,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:20,240 INFO L215 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, 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] [2024-11-08 11:39:20,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 11:39:20,241 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:20,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:20,242 INFO L85 PathProgramCache]: Analyzing trace with hash 373934106, now seen corresponding path program 1 times [2024-11-08 11:39:20,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:20,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146418467] [2024-11-08 11:39:20,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:20,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:20,416 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:39:20,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:20,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146418467] [2024-11-08 11:39:20,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146418467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:20,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:20,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:39:20,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832728500] [2024-11-08 11:39:20,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:20,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:20,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:20,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:20,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:20,421 INFO L87 Difference]: Start difference. First operand 971 states and 1507 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:22,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:22,295 INFO L93 Difference]: Finished difference Result 2813 states and 4381 transitions. [2024-11-08 11:39:22,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:22,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2024-11-08 11:39:22,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:22,301 INFO L225 Difference]: With dead ends: 2813 [2024-11-08 11:39:22,301 INFO L226 Difference]: Without dead ends: 1844 [2024-11-08 11:39:22,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:22,303 INFO L432 NwaCegarLoop]: 506 mSDtfsCounter, 405 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:22,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 579 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 11:39:22,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2024-11-08 11:39:22,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1841. [2024-11-08 11:39:22,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1841 states, 1840 states have (on average 1.35) internal successors, (2484), 1840 states have internal predecessors, (2484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:22,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2484 transitions. [2024-11-08 11:39:22,330 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2484 transitions. Word has length 127 [2024-11-08 11:39:22,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:22,330 INFO L471 AbstractCegarLoop]: Abstraction has 1841 states and 2484 transitions. [2024-11-08 11:39:22,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:22,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2484 transitions. [2024-11-08 11:39:22,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-08 11:39:22,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:22,332 INFO L215 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, 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] [2024-11-08 11:39:22,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 11:39:22,332 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:22,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:22,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1612782126, now seen corresponding path program 1 times [2024-11-08 11:39:22,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:22,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706420669] [2024-11-08 11:39:22,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:22,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:22,546 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:39:22,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:22,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706420669] [2024-11-08 11:39:22,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706420669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:22,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:22,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:22,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487029278] [2024-11-08 11:39:22,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:22,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:22,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:22,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:22,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:22,549 INFO L87 Difference]: Start difference. First operand 1841 states and 2484 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:24,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:24,764 INFO L93 Difference]: Finished difference Result 4552 states and 6282 transitions. [2024-11-08 11:39:24,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:24,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2024-11-08 11:39:24,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:24,783 INFO L225 Difference]: With dead ends: 4552 [2024-11-08 11:39:24,783 INFO L226 Difference]: Without dead ends: 2713 [2024-11-08 11:39:24,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:24,792 INFO L432 NwaCegarLoop]: 818 mSDtfsCounter, 447 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:24,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 886 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 11:39:24,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2024-11-08 11:39:24,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2711. [2024-11-08 11:39:24,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2711 states, 2710 states have (on average 1.3003690036900368) internal successors, (3524), 2710 states have internal predecessors, (3524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:24,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 3524 transitions. [2024-11-08 11:39:24,872 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 3524 transitions. Word has length 130 [2024-11-08 11:39:24,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:24,873 INFO L471 AbstractCegarLoop]: Abstraction has 2711 states and 3524 transitions. [2024-11-08 11:39:24,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:24,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 3524 transitions. [2024-11-08 11:39:24,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-08 11:39:24,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:24,876 INFO L215 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, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:24,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 11:39:24,877 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:24,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:24,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1390509399, now seen corresponding path program 1 times [2024-11-08 11:39:24,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:24,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895327600] [2024-11-08 11:39:24,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:24,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:25,077 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-08 11:39:25,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:25,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895327600] [2024-11-08 11:39:25,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895327600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:25,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:25,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:39:25,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897396042] [2024-11-08 11:39:25,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:25,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:25,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:25,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:25,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:25,080 INFO L87 Difference]: Start difference. First operand 2711 states and 3524 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:26,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:26,692 INFO L93 Difference]: Finished difference Result 7984 states and 10361 transitions. [2024-11-08 11:39:26,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:26,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 199 [2024-11-08 11:39:26,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:26,716 INFO L225 Difference]: With dead ends: 7984 [2024-11-08 11:39:26,716 INFO L226 Difference]: Without dead ends: 4421 [2024-11-08 11:39:26,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:26,728 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 386 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:26,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 591 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 11:39:26,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4421 states. [2024-11-08 11:39:26,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4421 to 3571. [2024-11-08 11:39:26,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3571 states, 3570 states have (on average 1.1775910364145659) internal successors, (4204), 3570 states have internal predecessors, (4204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:26,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 4204 transitions. [2024-11-08 11:39:26,830 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 4204 transitions. Word has length 199 [2024-11-08 11:39:26,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:26,831 INFO L471 AbstractCegarLoop]: Abstraction has 3571 states and 4204 transitions. [2024-11-08 11:39:26,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:26,831 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 4204 transitions. [2024-11-08 11:39:26,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-08 11:39:26,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:26,834 INFO L215 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:26,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 11:39:26,834 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:26,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:26,839 INFO L85 PathProgramCache]: Analyzing trace with hash -11472155, now seen corresponding path program 1 times [2024-11-08 11:39:26,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:26,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871838875] [2024-11-08 11:39:26,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:26,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:27,035 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:39:27,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:27,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871838875] [2024-11-08 11:39:27,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871838875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:27,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:27,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:27,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484817327] [2024-11-08 11:39:27,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:27,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:27,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:27,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:27,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:27,040 INFO L87 Difference]: Start difference. First operand 3571 states and 4204 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:28,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:28,467 INFO L93 Difference]: Finished difference Result 9273 states and 11087 transitions. [2024-11-08 11:39:28,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:28,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2024-11-08 11:39:28,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:28,480 INFO L225 Difference]: With dead ends: 9273 [2024-11-08 11:39:28,480 INFO L226 Difference]: Without dead ends: 5704 [2024-11-08 11:39:28,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:28,485 INFO L432 NwaCegarLoop]: 726 mSDtfsCounter, 496 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:28,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 784 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 11:39:28,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5704 states. [2024-11-08 11:39:28,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5704 to 5704. [2024-11-08 11:39:28,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5704 states, 5703 states have (on average 1.1595651411537786) internal successors, (6613), 5703 states have internal predecessors, (6613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:28,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5704 states to 5704 states and 6613 transitions. [2024-11-08 11:39:28,544 INFO L78 Accepts]: Start accepts. Automaton has 5704 states and 6613 transitions. Word has length 212 [2024-11-08 11:39:28,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:28,544 INFO L471 AbstractCegarLoop]: Abstraction has 5704 states and 6613 transitions. [2024-11-08 11:39:28,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:28,545 INFO L276 IsEmpty]: Start isEmpty. Operand 5704 states and 6613 transitions. [2024-11-08 11:39:28,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-08 11:39:28,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:28,547 INFO L215 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, 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] [2024-11-08 11:39:28,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 11:39:28,547 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:28,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:28,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1357792544, now seen corresponding path program 1 times [2024-11-08 11:39:28,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:28,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388141784] [2024-11-08 11:39:28,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:28,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:28,679 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-08 11:39:28,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:28,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388141784] [2024-11-08 11:39:28,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388141784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:28,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:28,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:28,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774190121] [2024-11-08 11:39:28,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:28,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:28,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:28,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:28,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:28,683 INFO L87 Difference]: Start difference. First operand 5704 states and 6613 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:30,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:30,166 INFO L93 Difference]: Finished difference Result 14376 states and 16776 transitions. [2024-11-08 11:39:30,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:30,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 214 [2024-11-08 11:39:30,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:30,186 INFO L225 Difference]: With dead ends: 14376 [2024-11-08 11:39:30,186 INFO L226 Difference]: Without dead ends: 8673 [2024-11-08 11:39:30,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:30,193 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 391 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:30,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 444 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 11:39:30,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8673 states. [2024-11-08 11:39:30,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8673 to 5677. [2024-11-08 11:39:30,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5677 states, 5676 states have (on average 1.1578576462297392) internal successors, (6572), 5676 states have internal predecessors, (6572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:30,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5677 states to 5677 states and 6572 transitions. [2024-11-08 11:39:30,309 INFO L78 Accepts]: Start accepts. Automaton has 5677 states and 6572 transitions. Word has length 214 [2024-11-08 11:39:30,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:30,310 INFO L471 AbstractCegarLoop]: Abstraction has 5677 states and 6572 transitions. [2024-11-08 11:39:30,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:30,310 INFO L276 IsEmpty]: Start isEmpty. Operand 5677 states and 6572 transitions. [2024-11-08 11:39:30,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-08 11:39:30,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:30,314 INFO L215 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, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:30,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 11:39:30,315 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:30,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:30,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1325464515, now seen corresponding path program 1 times [2024-11-08 11:39:30,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:30,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171790235] [2024-11-08 11:39:30,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:30,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:30,486 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-08 11:39:30,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:30,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171790235] [2024-11-08 11:39:30,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171790235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:30,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:30,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:30,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431207306] [2024-11-08 11:39:30,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:30,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:30,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:30,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:30,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:30,489 INFO L87 Difference]: Start difference. First operand 5677 states and 6572 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:31,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:31,902 INFO L93 Difference]: Finished difference Result 14315 states and 16680 transitions. [2024-11-08 11:39:31,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:31,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 292 [2024-11-08 11:39:31,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:31,920 INFO L225 Difference]: With dead ends: 14315 [2024-11-08 11:39:31,921 INFO L226 Difference]: Without dead ends: 7790 [2024-11-08 11:39:31,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:31,927 INFO L432 NwaCegarLoop]: 778 mSDtfsCounter, 383 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:31,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 847 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 11:39:31,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7790 states. [2024-11-08 11:39:31,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7790 to 7790. [2024-11-08 11:39:31,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7790 states, 7789 states have (on average 1.1186288355372962) internal successors, (8713), 7789 states have internal predecessors, (8713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:32,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7790 states to 7790 states and 8713 transitions. [2024-11-08 11:39:32,002 INFO L78 Accepts]: Start accepts. Automaton has 7790 states and 8713 transitions. Word has length 292 [2024-11-08 11:39:32,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:32,002 INFO L471 AbstractCegarLoop]: Abstraction has 7790 states and 8713 transitions. [2024-11-08 11:39:32,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:32,003 INFO L276 IsEmpty]: Start isEmpty. Operand 7790 states and 8713 transitions. [2024-11-08 11:39:32,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-08 11:39:32,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:32,006 INFO L215 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, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-08 11:39:32,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 11:39:32,006 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:32,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:32,007 INFO L85 PathProgramCache]: Analyzing trace with hash 2130053414, now seen corresponding path program 1 times [2024-11-08 11:39:32,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:32,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520845485] [2024-11-08 11:39:32,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:32,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:32,304 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-08 11:39:32,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:32,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520845485] [2024-11-08 11:39:32,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520845485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:32,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:32,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:32,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071229749] [2024-11-08 11:39:32,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:32,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:32,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:32,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:32,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:32,306 INFO L87 Difference]: Start difference. First operand 7790 states and 8713 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:33,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:33,845 INFO L93 Difference]: Finished difference Result 18558 states and 20949 transitions. [2024-11-08 11:39:33,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:33,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 332 [2024-11-08 11:39:33,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:33,860 INFO L225 Difference]: With dead ends: 18558 [2024-11-08 11:39:33,860 INFO L226 Difference]: Without dead ends: 10770 [2024-11-08 11:39:33,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:33,868 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 445 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:33,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 330 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 11:39:33,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10770 states. [2024-11-08 11:39:33,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10770 to 9916. [2024-11-08 11:39:33,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9916 states, 9915 states have (on average 1.1232476046394353) internal successors, (11137), 9915 states have internal predecessors, (11137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:33,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9916 states to 9916 states and 11137 transitions. [2024-11-08 11:39:33,972 INFO L78 Accepts]: Start accepts. Automaton has 9916 states and 11137 transitions. Word has length 332 [2024-11-08 11:39:33,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:33,972 INFO L471 AbstractCegarLoop]: Abstraction has 9916 states and 11137 transitions. [2024-11-08 11:39:33,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:33,973 INFO L276 IsEmpty]: Start isEmpty. Operand 9916 states and 11137 transitions. [2024-11-08 11:39:33,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-08 11:39:33,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:33,978 INFO L215 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:33,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 11:39:33,978 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:33,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:33,979 INFO L85 PathProgramCache]: Analyzing trace with hash 273177675, now seen corresponding path program 1 times [2024-11-08 11:39:33,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:33,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135515157] [2024-11-08 11:39:33,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:33,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:34,278 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-08 11:39:34,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:34,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135515157] [2024-11-08 11:39:34,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135515157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:34,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:34,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:34,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112692947] [2024-11-08 11:39:34,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:34,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:34,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:34,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:34,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:34,281 INFO L87 Difference]: Start difference. First operand 9916 states and 11137 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:35,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:35,884 INFO L93 Difference]: Finished difference Result 27952 states and 31474 transitions. [2024-11-08 11:39:35,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:35,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 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 349 [2024-11-08 11:39:35,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:35,908 INFO L225 Difference]: With dead ends: 27952 [2024-11-08 11:39:35,909 INFO L226 Difference]: Without dead ends: 18038 [2024-11-08 11:39:35,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:35,919 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 441 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:35,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 807 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 11:39:35,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18038 states. [2024-11-08 11:39:36,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18038 to 17163. [2024-11-08 11:39:36,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17163 states, 17162 states have (on average 1.1156625101969468) internal successors, (19147), 17162 states have internal predecessors, (19147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:36,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17163 states to 17163 states and 19147 transitions. [2024-11-08 11:39:36,068 INFO L78 Accepts]: Start accepts. Automaton has 17163 states and 19147 transitions. Word has length 349 [2024-11-08 11:39:36,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:36,068 INFO L471 AbstractCegarLoop]: Abstraction has 17163 states and 19147 transitions. [2024-11-08 11:39:36,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:36,068 INFO L276 IsEmpty]: Start isEmpty. Operand 17163 states and 19147 transitions. [2024-11-08 11:39:36,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-11-08 11:39:36,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:36,076 INFO L215 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:36,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 11:39:36,076 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:36,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:36,077 INFO L85 PathProgramCache]: Analyzing trace with hash 903485880, now seen corresponding path program 1 times [2024-11-08 11:39:36,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:36,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903543724] [2024-11-08 11:39:36,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:36,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:36,536 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:39:36,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:36,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903543724] [2024-11-08 11:39:36,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903543724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:36,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:36,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:36,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566949192] [2024-11-08 11:39:36,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:36,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:39:36,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:36,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:39:36,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:39:36,543 INFO L87 Difference]: Start difference. First operand 17163 states and 19147 transitions. Second operand has 4 states, 4 states have (on average 99.75) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:38,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:38,765 INFO L93 Difference]: Finished difference Result 42008 states and 46867 transitions. [2024-11-08 11:39:38,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:39:38,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 99.75) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 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 399 [2024-11-08 11:39:38,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:38,801 INFO L225 Difference]: With dead ends: 42008 [2024-11-08 11:39:38,801 INFO L226 Difference]: Without dead ends: 24422 [2024-11-08 11:39:38,817 INFO L431 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 [2024-11-08 11:39:38,819 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 610 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 2398 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 2709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 2398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:38,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 233 Invalid, 2709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 2398 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 11:39:38,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24422 states. [2024-11-08 11:39:39,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24422 to 24420. [2024-11-08 11:39:39,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24420 states, 24419 states have (on average 1.1172857201359596) internal successors, (27283), 24419 states have internal predecessors, (27283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:39,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24420 states to 24420 states and 27283 transitions. [2024-11-08 11:39:39,161 INFO L78 Accepts]: Start accepts. Automaton has 24420 states and 27283 transitions. Word has length 399 [2024-11-08 11:39:39,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:39,163 INFO L471 AbstractCegarLoop]: Abstraction has 24420 states and 27283 transitions. [2024-11-08 11:39:39,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.75) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:39,163 INFO L276 IsEmpty]: Start isEmpty. Operand 24420 states and 27283 transitions. [2024-11-08 11:39:39,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2024-11-08 11:39:39,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:39,177 INFO L215 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, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:39,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 11:39:39,178 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:39,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:39,178 INFO L85 PathProgramCache]: Analyzing trace with hash 231337437, now seen corresponding path program 1 times [2024-11-08 11:39:39,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:39,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258990298] [2024-11-08 11:39:39,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:39,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:39,356 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-08 11:39:39,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:39,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258990298] [2024-11-08 11:39:39,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258990298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:39,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:39,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:39,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223054426] [2024-11-08 11:39:39,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:39,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:39,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:39,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:39,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:39,358 INFO L87 Difference]: Start difference. First operand 24420 states and 27283 transitions. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:41,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:41,036 INFO L93 Difference]: Finished difference Result 55245 states and 61737 transitions. [2024-11-08 11:39:41,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:41,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 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 420 [2024-11-08 11:39:41,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:41,070 INFO L225 Difference]: With dead ends: 55245 [2024-11-08 11:39:41,070 INFO L226 Difference]: Without dead ends: 30827 [2024-11-08 11:39:41,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:41,087 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 416 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 1562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:41,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 765 Invalid, 1562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 11:39:41,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30827 states. [2024-11-08 11:39:41,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30827 to 23983. [2024-11-08 11:39:41,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23983 states, 23982 states have (on average 1.1184221499457927) internal successors, (26822), 23982 states have internal predecessors, (26822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:41,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23983 states to 23983 states and 26822 transitions. [2024-11-08 11:39:41,387 INFO L78 Accepts]: Start accepts. Automaton has 23983 states and 26822 transitions. Word has length 420 [2024-11-08 11:39:41,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:41,388 INFO L471 AbstractCegarLoop]: Abstraction has 23983 states and 26822 transitions. [2024-11-08 11:39:41,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:41,389 INFO L276 IsEmpty]: Start isEmpty. Operand 23983 states and 26822 transitions. [2024-11-08 11:39:41,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-08 11:39:41,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:41,400 INFO L215 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, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-08 11:39:41,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 11:39:41,400 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:41,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:41,401 INFO L85 PathProgramCache]: Analyzing trace with hash 782937122, now seen corresponding path program 1 times [2024-11-08 11:39:41,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:41,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8079436] [2024-11-08 11:39:41,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:41,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:41,574 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-08 11:39:41,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:41,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8079436] [2024-11-08 11:39:41,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8079436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:41,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:41,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:41,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819055487] [2024-11-08 11:39:41,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:41,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:41,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:41,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:41,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:41,576 INFO L87 Difference]: Start difference. First operand 23983 states and 26822 transitions. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:43,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:43,185 INFO L93 Difference]: Finished difference Result 57340 states and 64370 transitions. [2024-11-08 11:39:43,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:43,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 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 421 [2024-11-08 11:39:43,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:43,247 INFO L225 Difference]: With dead ends: 57340 [2024-11-08 11:39:43,250 INFO L226 Difference]: Without dead ends: 33359 [2024-11-08 11:39:43,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:43,266 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 506 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:43,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 252 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 11:39:43,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33359 states. [2024-11-08 11:39:43,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33359 to 33341. [2024-11-08 11:39:43,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33341 states, 33340 states have (on average 1.1147870425914816) internal successors, (37167), 33340 states have internal predecessors, (37167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:43,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33341 states to 33341 states and 37167 transitions. [2024-11-08 11:39:43,714 INFO L78 Accepts]: Start accepts. Automaton has 33341 states and 37167 transitions. Word has length 421 [2024-11-08 11:39:43,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:43,715 INFO L471 AbstractCegarLoop]: Abstraction has 33341 states and 37167 transitions. [2024-11-08 11:39:43,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:43,716 INFO L276 IsEmpty]: Start isEmpty. Operand 33341 states and 37167 transitions. [2024-11-08 11:39:43,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-08 11:39:43,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:43,725 INFO L215 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, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:43,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 11:39:43,725 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:43,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:43,726 INFO L85 PathProgramCache]: Analyzing trace with hash -649020687, now seen corresponding path program 1 times [2024-11-08 11:39:43,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:43,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335705171] [2024-11-08 11:39:43,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:43,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-08 11:39:43,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:43,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335705171] [2024-11-08 11:39:43,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335705171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:43,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:43,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:43,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391205467] [2024-11-08 11:39:43,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:43,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:43,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:43,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:43,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:43,906 INFO L87 Difference]: Start difference. First operand 33341 states and 37167 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:45,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:45,592 INFO L93 Difference]: Finished difference Result 75204 states and 83736 transitions. [2024-11-08 11:39:45,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:45,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 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 428 [2024-11-08 11:39:45,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:45,633 INFO L225 Difference]: With dead ends: 75204 [2024-11-08 11:39:45,633 INFO L226 Difference]: Without dead ends: 40158 [2024-11-08 11:39:45,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:45,650 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 393 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:45,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 861 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 11:39:45,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40158 states. [2024-11-08 11:39:45,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40158 to 38863. [2024-11-08 11:39:45,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38863 states, 38862 states have (on average 1.106324944676033) internal successors, (42994), 38862 states have internal predecessors, (42994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:45,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38863 states to 38863 states and 42994 transitions. [2024-11-08 11:39:45,983 INFO L78 Accepts]: Start accepts. Automaton has 38863 states and 42994 transitions. Word has length 428 [2024-11-08 11:39:45,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:45,984 INFO L471 AbstractCegarLoop]: Abstraction has 38863 states and 42994 transitions. [2024-11-08 11:39:45,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:45,984 INFO L276 IsEmpty]: Start isEmpty. Operand 38863 states and 42994 transitions. [2024-11-08 11:39:45,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2024-11-08 11:39:45,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:45,995 INFO L215 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:45,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 11:39:45,995 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:45,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:45,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1856333145, now seen corresponding path program 1 times [2024-11-08 11:39:45,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:45,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092869080] [2024-11-08 11:39:45,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:45,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:47,466 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 115 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:39:47,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:47,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092869080] [2024-11-08 11:39:47,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092869080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:39:47,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011102642] [2024-11-08 11:39:47,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:47,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:39:47,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:39:47,470 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) [2024-11-08 11:39:47,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 11:39:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:47,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 11:39:47,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:39:48,077 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 115 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:39:48,078 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:39:48,522 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:39:48,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011102642] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 11:39:48,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 11:39:48,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 3] total 10 [2024-11-08 11:39:48,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752769950] [2024-11-08 11:39:48,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:48,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:39:48,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:48,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:39:48,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-08 11:39:48,524 INFO L87 Difference]: Start difference. First operand 38863 states and 42994 transitions. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:51,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:51,243 INFO L93 Difference]: Finished difference Result 106690 states and 118393 transitions. [2024-11-08 11:39:51,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:39:51,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 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 446 [2024-11-08 11:39:51,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:51,314 INFO L225 Difference]: With dead ends: 106690 [2024-11-08 11:39:51,315 INFO L226 Difference]: Without dead ends: 66970 [2024-11-08 11:39:51,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 896 GetRequests, 887 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-08 11:39:51,365 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 702 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 2248 mSolverCounterSat, 732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 2980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 732 IncrementalHoareTripleChecker+Valid, 2248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:51,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 174 Invalid, 2980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [732 Valid, 2248 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 11:39:51,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66970 states. [2024-11-08 11:39:52,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66970 to 63135. [2024-11-08 11:39:52,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63135 states, 63134 states have (on average 1.099851110336744) internal successors, (69438), 63134 states have internal predecessors, (69438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:52,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63135 states to 63135 states and 69438 transitions. [2024-11-08 11:39:52,221 INFO L78 Accepts]: Start accepts. Automaton has 63135 states and 69438 transitions. Word has length 446 [2024-11-08 11:39:52,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:52,222 INFO L471 AbstractCegarLoop]: Abstraction has 63135 states and 69438 transitions. [2024-11-08 11:39:52,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:52,222 INFO L276 IsEmpty]: Start isEmpty. Operand 63135 states and 69438 transitions. [2024-11-08 11:39:52,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-11-08 11:39:52,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:52,242 INFO L215 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, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-08 11:39:52,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 11:39:52,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-08 11:39:52,443 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:52,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:52,444 INFO L85 PathProgramCache]: Analyzing trace with hash 653691728, now seen corresponding path program 1 times [2024-11-08 11:39:52,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:52,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551533969] [2024-11-08 11:39:52,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:52,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:52,621 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-08 11:39:52,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:52,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551533969] [2024-11-08 11:39:52,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551533969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:52,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:52,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:52,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252279109] [2024-11-08 11:39:52,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:52,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:52,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:52,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:52,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:52,626 INFO L87 Difference]: Start difference. First operand 63135 states and 69438 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:54,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:54,506 INFO L93 Difference]: Finished difference Result 137747 states and 151519 transitions. [2024-11-08 11:39:54,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:54,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 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 464 [2024-11-08 11:39:54,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:54,570 INFO L225 Difference]: With dead ends: 137747 [2024-11-08 11:39:54,570 INFO L226 Difference]: Without dead ends: 67795 [2024-11-08 11:39:54,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:54,595 INFO L432 NwaCegarLoop]: 669 mSDtfsCounter, 492 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:54,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 715 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 11:39:54,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67795 states. [2024-11-08 11:39:55,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67795 to 67785. [2024-11-08 11:39:55,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67785 states, 67784 states have (on average 1.083825091467013) internal successors, (73466), 67784 states have internal predecessors, (73466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:55,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67785 states to 67785 states and 73466 transitions. [2024-11-08 11:39:55,623 INFO L78 Accepts]: Start accepts. Automaton has 67785 states and 73466 transitions. Word has length 464 [2024-11-08 11:39:55,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:55,623 INFO L471 AbstractCegarLoop]: Abstraction has 67785 states and 73466 transitions. [2024-11-08 11:39:55,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:55,624 INFO L276 IsEmpty]: Start isEmpty. Operand 67785 states and 73466 transitions. [2024-11-08 11:39:55,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2024-11-08 11:39:55,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:55,660 INFO L215 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, 5, 5, 5, 5, 5, 5, 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, 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, 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, 1] [2024-11-08 11:39:55,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 11:39:55,660 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:55,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:55,661 INFO L85 PathProgramCache]: Analyzing trace with hash 505047341, now seen corresponding path program 1 times [2024-11-08 11:39:55,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:55,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462084981] [2024-11-08 11:39:55,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:55,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:56,273 INFO L134 CoverageAnalysis]: Checked inductivity of 822 backedges. 593 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-08 11:39:56,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:56,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462084981] [2024-11-08 11:39:56,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462084981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:56,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:56,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:39:56,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577306139] [2024-11-08 11:39:56,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:56,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:39:56,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:56,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:39:56,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:39:56,276 INFO L87 Difference]: Start difference. First operand 67785 states and 73466 transitions. Second operand has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:58,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:58,975 INFO L93 Difference]: Finished difference Result 154746 states and 167583 transitions. [2024-11-08 11:39:58,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:39:58,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 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 762 [2024-11-08 11:39:58,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:59,061 INFO L225 Difference]: With dead ends: 154746 [2024-11-08 11:39:59,062 INFO L226 Difference]: Without dead ends: 84838 [2024-11-08 11:39:59,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:39:59,094 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 543 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 2358 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 2678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 2358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:59,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 232 Invalid, 2678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 2358 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 11:39:59,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84838 states. [2024-11-08 11:39:59,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84838 to 63509. [2024-11-08 11:39:59,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63509 states, 63508 states have (on average 1.084524784279146) internal successors, (68876), 63508 states have internal predecessors, (68876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:59,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63509 states to 63509 states and 68876 transitions. [2024-11-08 11:39:59,991 INFO L78 Accepts]: Start accepts. Automaton has 63509 states and 68876 transitions. Word has length 762 [2024-11-08 11:39:59,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:59,994 INFO L471 AbstractCegarLoop]: Abstraction has 63509 states and 68876 transitions. [2024-11-08 11:39:59,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:59,995 INFO L276 IsEmpty]: Start isEmpty. Operand 63509 states and 68876 transitions. [2024-11-08 11:40:00,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2024-11-08 11:40:00,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:40:00,057 INFO L215 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, 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, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:40:00,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 11:40:00,058 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:40:00,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:40:00,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1446698845, now seen corresponding path program 1 times [2024-11-08 11:40:00,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:40:00,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415241906] [2024-11-08 11:40:00,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:40:00,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:40:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:40:00,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1201 backedges. 289 proven. 0 refuted. 0 times theorem prover too weak. 912 trivial. 0 not checked. [2024-11-08 11:40:00,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:40:00,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415241906] [2024-11-08 11:40:00,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415241906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:40:00,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:40:00,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:40:00,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550619597] [2024-11-08 11:40:00,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:40:00,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:40:00,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:40:00,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:40:00,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:40:00,532 INFO L87 Difference]: Start difference. First operand 63509 states and 68876 transitions. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:02,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:40:02,529 INFO L93 Difference]: Finished difference Result 132098 states and 143100 transitions. [2024-11-08 11:40:02,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:40:02,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 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 794 [2024-11-08 11:40:02,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:40:02,619 INFO L225 Difference]: With dead ends: 132098 [2024-11-08 11:40:02,619 INFO L226 Difference]: Without dead ends: 66461 [2024-11-08 11:40:02,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:40:02,670 INFO L432 NwaCegarLoop]: 679 mSDtfsCounter, 460 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:40:02,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 723 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 11:40:02,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66461 states. [2024-11-08 11:40:03,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66461 to 61356. [2024-11-08 11:40:03,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61356 states, 61355 states have (on average 1.0662374704588053) internal successors, (65419), 61355 states have internal predecessors, (65419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:03,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61356 states to 61356 states and 65419 transitions. [2024-11-08 11:40:03,478 INFO L78 Accepts]: Start accepts. Automaton has 61356 states and 65419 transitions. Word has length 794 [2024-11-08 11:40:03,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:40:03,479 INFO L471 AbstractCegarLoop]: Abstraction has 61356 states and 65419 transitions. [2024-11-08 11:40:03,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:03,479 INFO L276 IsEmpty]: Start isEmpty. Operand 61356 states and 65419 transitions. [2024-11-08 11:40:03,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 848 [2024-11-08 11:40:03,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:40:03,511 INFO L215 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, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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] [2024-11-08 11:40:03,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 11:40:03,512 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:40:03,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:40:03,512 INFO L85 PathProgramCache]: Analyzing trace with hash 764752180, now seen corresponding path program 1 times [2024-11-08 11:40:03,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:40:03,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387312421] [2024-11-08 11:40:03,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:40:03,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:40:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:40:04,042 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 747 trivial. 0 not checked. [2024-11-08 11:40:04,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:40:04,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387312421] [2024-11-08 11:40:04,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387312421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:40:04,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:40:04,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:40:04,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518325289] [2024-11-08 11:40:04,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:40:04,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:40:04,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:40:04,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:40:04,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:40:04,044 INFO L87 Difference]: Start difference. First operand 61356 states and 65419 transitions. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 2 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:05,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:40:05,046 INFO L93 Difference]: Finished difference Result 117163 states and 124914 transitions. [2024-11-08 11:40:05,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:40:05,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 2 states have internal predecessors, (372), 0 states have call successors, (0), 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 847 [2024-11-08 11:40:05,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:40:05,108 INFO L225 Difference]: With dead ends: 117163 [2024-11-08 11:40:05,108 INFO L226 Difference]: Without dead ends: 55808 [2024-11-08 11:40:05,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:40:05,147 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 376 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:40:05,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 71 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 11:40:05,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55808 states. [2024-11-08 11:40:05,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55808 to 55802. [2024-11-08 11:40:05,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55802 states, 55801 states have (on average 1.0657156681779896) internal successors, (59468), 55801 states have internal predecessors, (59468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:05,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55802 states to 55802 states and 59468 transitions. [2024-11-08 11:40:05,816 INFO L78 Accepts]: Start accepts. Automaton has 55802 states and 59468 transitions. Word has length 847 [2024-11-08 11:40:05,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:40:05,817 INFO L471 AbstractCegarLoop]: Abstraction has 55802 states and 59468 transitions. [2024-11-08 11:40:05,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 2 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:05,817 INFO L276 IsEmpty]: Start isEmpty. Operand 55802 states and 59468 transitions. [2024-11-08 11:40:05,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2024-11-08 11:40:05,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:40:05,845 INFO L215 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:40:05,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 11:40:05,845 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:40:05,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:40:05,845 INFO L85 PathProgramCache]: Analyzing trace with hash -856792911, now seen corresponding path program 1 times [2024-11-08 11:40:05,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:40:05,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47730042] [2024-11-08 11:40:05,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:40:05,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:40:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:40:06,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1237 backedges. 940 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-11-08 11:40:06,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:40:06,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47730042] [2024-11-08 11:40:06,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47730042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:40:06,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:40:06,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:40:06,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49392565] [2024-11-08 11:40:06,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:40:06,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:40:06,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:40:06,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:40:06,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:40:06,354 INFO L87 Difference]: Start difference. First operand 55802 states and 59468 transitions. Second operand has 3 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:08,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:40:08,013 INFO L93 Difference]: Finished difference Result 113737 states and 120952 transitions. [2024-11-08 11:40:08,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:40:08,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 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 852 [2024-11-08 11:40:08,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:40:08,074 INFO L225 Difference]: With dead ends: 113737 [2024-11-08 11:40:08,074 INFO L226 Difference]: Without dead ends: 58362 [2024-11-08 11:40:08,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:40:08,094 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 141 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:40:08,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 107 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 11:40:08,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58362 states. [2024-11-08 11:40:08,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58362 to 54520. [2024-11-08 11:40:08,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54520 states, 54519 states have (on average 1.061794970560722) internal successors, (57888), 54519 states have internal predecessors, (57888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:08,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54520 states to 54520 states and 57888 transitions. [2024-11-08 11:40:08,751 INFO L78 Accepts]: Start accepts. Automaton has 54520 states and 57888 transitions. Word has length 852 [2024-11-08 11:40:08,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:40:08,751 INFO L471 AbstractCegarLoop]: Abstraction has 54520 states and 57888 transitions. [2024-11-08 11:40:08,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:08,752 INFO L276 IsEmpty]: Start isEmpty. Operand 54520 states and 57888 transitions. [2024-11-08 11:40:08,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 871 [2024-11-08 11:40:08,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:40:08,792 INFO L215 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, 5, 5, 5, 5, 5, 5, 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, 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, 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, 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] [2024-11-08 11:40:08,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 11:40:08,792 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:40:08,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:40:08,793 INFO L85 PathProgramCache]: Analyzing trace with hash -98085374, now seen corresponding path program 1 times [2024-11-08 11:40:08,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:40:08,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463510520] [2024-11-08 11:40:08,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:40:08,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:40:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:40:09,587 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 851 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-08 11:40:09,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:40:09,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463510520] [2024-11-08 11:40:09,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463510520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:40:09,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:40:09,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:40:09,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803563981] [2024-11-08 11:40:09,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:40:09,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:40:09,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:40:09,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:40:09,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:40:09,589 INFO L87 Difference]: Start difference. First operand 54520 states and 57888 transitions. Second operand has 3 states, 3 states have (on average 243.66666666666666) internal successors, (731), 3 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:11,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:40:11,154 INFO L93 Difference]: Finished difference Result 118401 states and 125828 transitions. [2024-11-08 11:40:11,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:40:11,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 243.66666666666666) internal successors, (731), 3 states have internal predecessors, (731), 0 states have call successors, (0), 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 870 [2024-11-08 11:40:11,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:40:11,207 INFO L225 Difference]: With dead ends: 118401 [2024-11-08 11:40:11,207 INFO L226 Difference]: Without dead ends: 63881 [2024-11-08 11:40:11,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:40:11,217 INFO L432 NwaCegarLoop]: 583 mSDtfsCounter, 183 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:40:11,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 608 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:40:11,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63881 states. [2024-11-08 11:40:11,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63881 to 63024. [2024-11-08 11:40:11,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63024 states, 63023 states have (on average 1.0598352982244577) internal successors, (66794), 63023 states have internal predecessors, (66794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:11,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63024 states to 63024 states and 66794 transitions. [2024-11-08 11:40:11,874 INFO L78 Accepts]: Start accepts. Automaton has 63024 states and 66794 transitions. Word has length 870 [2024-11-08 11:40:11,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:40:11,874 INFO L471 AbstractCegarLoop]: Abstraction has 63024 states and 66794 transitions. [2024-11-08 11:40:11,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 243.66666666666666) internal successors, (731), 3 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:11,874 INFO L276 IsEmpty]: Start isEmpty. Operand 63024 states and 66794 transitions. [2024-11-08 11:40:11,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 968 [2024-11-08 11:40:11,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:40:11,911 INFO L215 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, 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, 5, 5, 5, 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, 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, 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] [2024-11-08 11:40:11,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 11:40:11,912 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:40:11,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:40:11,912 INFO L85 PathProgramCache]: Analyzing trace with hash -36405710, now seen corresponding path program 1 times [2024-11-08 11:40:11,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:40:11,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242697358] [2024-11-08 11:40:11,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:40:11,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:40:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:40:12,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1387 backedges. 893 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2024-11-08 11:40:12,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:40:12,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242697358] [2024-11-08 11:40:12,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242697358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:40:12,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:40:12,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:40:12,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102214175] [2024-11-08 11:40:12,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:40:12,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:40:12,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:40:12,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:40:12,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:40:12,581 INFO L87 Difference]: Start difference. First operand 63024 states and 66794 transitions. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:14,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:40:14,237 INFO L93 Difference]: Finished difference Result 132016 states and 139893 transitions. [2024-11-08 11:40:14,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:40:14,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 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 967 [2024-11-08 11:40:14,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:40:14,320 INFO L225 Difference]: With dead ends: 132016 [2024-11-08 11:40:14,320 INFO L226 Difference]: Without dead ends: 69844 [2024-11-08 11:40:14,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:40:14,364 INFO L432 NwaCegarLoop]: 635 mSDtfsCounter, 320 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:40:14,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 669 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 11:40:14,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69844 states. [2024-11-08 11:40:15,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69844 to 68980. [2024-11-08 11:40:15,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68980 states, 68979 states have (on average 1.0571478275997042) internal successors, (72921), 68979 states have internal predecessors, (72921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:15,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68980 states to 68980 states and 72921 transitions. [2024-11-08 11:40:15,173 INFO L78 Accepts]: Start accepts. Automaton has 68980 states and 72921 transitions. Word has length 967 [2024-11-08 11:40:15,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:40:15,173 INFO L471 AbstractCegarLoop]: Abstraction has 68980 states and 72921 transitions. [2024-11-08 11:40:15,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:15,173 INFO L276 IsEmpty]: Start isEmpty. Operand 68980 states and 72921 transitions. [2024-11-08 11:40:15,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 991 [2024-11-08 11:40:15,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:40:15,211 INFO L215 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, 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, 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, 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, 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] [2024-11-08 11:40:15,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 11:40:15,211 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:40:15,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:40:15,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1020184031, now seen corresponding path program 1 times [2024-11-08 11:40:15,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:40:15,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951525315] [2024-11-08 11:40:15,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:40:15,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:40:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:40:16,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 1052 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-11-08 11:40:16,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:40:16,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951525315] [2024-11-08 11:40:16,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951525315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:40:16,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:40:16,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:40:16,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187092715] [2024-11-08 11:40:16,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:40:16,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:40:16,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:40:16,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:40:16,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:40:16,250 INFO L87 Difference]: Start difference. First operand 68980 states and 72921 transitions. Second operand has 4 states, 4 states have (on average 157.25) internal successors, (629), 4 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:18,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:40:18,752 INFO L93 Difference]: Finished difference Result 160100 states and 169351 transitions. [2024-11-08 11:40:18,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:40:18,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 157.25) internal successors, (629), 4 states have internal predecessors, (629), 0 states have call successors, (0), 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 990 [2024-11-08 11:40:18,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:40:18,852 INFO L225 Difference]: With dead ends: 160100 [2024-11-08 11:40:18,852 INFO L226 Difference]: Without dead ends: 91972 [2024-11-08 11:40:18,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:40:18,881 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 748 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 2175 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 2175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:40:18,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 113 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 2175 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 11:40:18,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91972 states. [2024-11-08 11:40:19,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91972 to 82608. [2024-11-08 11:40:20,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82608 states, 82607 states have (on average 1.0584817267301803) internal successors, (87438), 82607 states have internal predecessors, (87438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:20,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82608 states to 82608 states and 87438 transitions. [2024-11-08 11:40:20,111 INFO L78 Accepts]: Start accepts. Automaton has 82608 states and 87438 transitions. Word has length 990 [2024-11-08 11:40:20,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:40:20,111 INFO L471 AbstractCegarLoop]: Abstraction has 82608 states and 87438 transitions. [2024-11-08 11:40:20,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 157.25) internal successors, (629), 4 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:20,112 INFO L276 IsEmpty]: Start isEmpty. Operand 82608 states and 87438 transitions. [2024-11-08 11:40:20,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1006 [2024-11-08 11:40:20,160 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:40:20,161 INFO L215 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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] [2024-11-08 11:40:20,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 11:40:20,161 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:40:20,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:40:20,161 INFO L85 PathProgramCache]: Analyzing trace with hash 400301020, now seen corresponding path program 1 times [2024-11-08 11:40:20,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:40:20,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763807159] [2024-11-08 11:40:20,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:40:20,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:40:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:40:21,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 598 proven. 78 refuted. 0 times theorem prover too weak. 797 trivial. 0 not checked. [2024-11-08 11:40:21,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:40:21,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763807159] [2024-11-08 11:40:21,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763807159] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:40:21,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981630658] [2024-11-08 11:40:21,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:40:21,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:40:21,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:40:21,042 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) [2024-11-08 11:40:21,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 11:40:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:40:21,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 11:40:21,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:40:21,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 598 proven. 78 refuted. 0 times theorem prover too weak. 797 trivial. 0 not checked. [2024-11-08 11:40:21,653 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:40:21,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 676 proven. 0 refuted. 0 times theorem prover too weak. 797 trivial. 0 not checked. [2024-11-08 11:40:21,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981630658] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 11:40:21,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 11:40:21,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2024-11-08 11:40:21,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295421130] [2024-11-08 11:40:21,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:40:21,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:40:21,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:40:21,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:40:21,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:40:21,858 INFO L87 Difference]: Start difference. First operand 82608 states and 87438 transitions. Second operand has 4 states, 4 states have (on average 121.5) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:24,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:40:24,274 INFO L93 Difference]: Finished difference Result 177573 states and 188138 transitions. [2024-11-08 11:40:24,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:40:24,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 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 1005 [2024-11-08 11:40:24,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:40:24,373 INFO L225 Difference]: With dead ends: 177573 [2024-11-08 11:40:24,373 INFO L226 Difference]: Without dead ends: 95817 [2024-11-08 11:40:24,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2011 GetRequests, 2007 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:40:24,421 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 783 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 2147 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 2460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 2147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:40:24,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 143 Invalid, 2460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 2147 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 11:40:24,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95817 states. [2024-11-08 11:40:25,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95817 to 91565. [2024-11-08 11:40:25,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91565 states, 91564 states have (on average 1.06024201651304) internal successors, (97080), 91564 states have internal predecessors, (97080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:26,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91565 states to 91565 states and 97080 transitions. [2024-11-08 11:40:26,412 INFO L78 Accepts]: Start accepts. Automaton has 91565 states and 97080 transitions. Word has length 1005 [2024-11-08 11:40:26,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:40:26,412 INFO L471 AbstractCegarLoop]: Abstraction has 91565 states and 97080 transitions. [2024-11-08 11:40:26,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:26,412 INFO L276 IsEmpty]: Start isEmpty. Operand 91565 states and 97080 transitions. [2024-11-08 11:40:26,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1060 [2024-11-08 11:40:26,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:40:26,477 INFO L215 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, 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, 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, 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, 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, 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] [2024-11-08 11:40:26,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 11:40:26,677 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,SelfDestructingSolverStorable22 [2024-11-08 11:40:26,678 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:40:26,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:40:26,678 INFO L85 PathProgramCache]: Analyzing trace with hash 458632131, now seen corresponding path program 1 times [2024-11-08 11:40:26,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:40:26,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499486001] [2024-11-08 11:40:26,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:40:26,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:40:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:40:27,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 976 proven. 0 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2024-11-08 11:40:27,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:40:27,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499486001] [2024-11-08 11:40:27,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499486001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:40:27,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:40:27,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:40:27,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449397496] [2024-11-08 11:40:27,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:40:27,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:40:27,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:40:27,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:40:27,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:40:27,352 INFO L87 Difference]: Start difference. First operand 91565 states and 97080 transitions. Second operand has 3 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:28,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:40:28,786 INFO L93 Difference]: Finished difference Result 181424 states and 192294 transitions. [2024-11-08 11:40:28,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:40:28,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 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 1059 [2024-11-08 11:40:28,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:40:28,873 INFO L225 Difference]: With dead ends: 181424 [2024-11-08 11:40:28,873 INFO L226 Difference]: Without dead ends: 90286 [2024-11-08 11:40:28,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:40:28,926 INFO L432 NwaCegarLoop]: 600 mSDtfsCounter, 82 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:40:28,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 644 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 11:40:28,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90286 states. [2024-11-08 11:40:29,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90286 to 86457. [2024-11-08 11:40:29,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86457 states, 86456 states have (on average 1.0517257333209957) internal successors, (90928), 86456 states have internal predecessors, (90928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:29,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86457 states to 86457 states and 90928 transitions. [2024-11-08 11:40:29,937 INFO L78 Accepts]: Start accepts. Automaton has 86457 states and 90928 transitions. Word has length 1059 [2024-11-08 11:40:29,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:40:29,938 INFO L471 AbstractCegarLoop]: Abstraction has 86457 states and 90928 transitions. [2024-11-08 11:40:29,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:29,938 INFO L276 IsEmpty]: Start isEmpty. Operand 86457 states and 90928 transitions. [2024-11-08 11:40:29,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1062 [2024-11-08 11:40:29,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:40:29,989 INFO L215 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, 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, 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, 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, 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, 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] [2024-11-08 11:40:29,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 11:40:29,989 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:40:29,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:40:29,990 INFO L85 PathProgramCache]: Analyzing trace with hash 936226129, now seen corresponding path program 1 times [2024-11-08 11:40:29,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:40:29,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308061579] [2024-11-08 11:40:29,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:40:29,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:40:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:40:31,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1628 backedges. 1287 proven. 0 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2024-11-08 11:40:31,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:40:31,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308061579] [2024-11-08 11:40:31,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308061579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:40:31,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:40:31,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:40:31,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886066991] [2024-11-08 11:40:31,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:40:31,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:40:31,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:40:31,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:40:31,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:40:31,609 INFO L87 Difference]: Start difference. First operand 86457 states and 90928 transitions. Second operand has 4 states, 4 states have (on average 201.25) internal successors, (805), 4 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:33,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:40:33,714 INFO L93 Difference]: Finished difference Result 181429 states and 190671 transitions. [2024-11-08 11:40:33,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:40:33,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 201.25) internal successors, (805), 4 states have internal predecessors, (805), 0 states have call successors, (0), 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 1061 [2024-11-08 11:40:33,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:40:33,826 INFO L225 Difference]: With dead ends: 181429 [2024-11-08 11:40:33,827 INFO L226 Difference]: Without dead ends: 95399 [2024-11-08 11:40:33,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:40:33,889 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 605 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 2639 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 2836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 2639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:40:33,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 263 Invalid, 2836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 2639 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 11:40:34,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95399 states. [2024-11-08 11:40:34,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95399 to 89436. [2024-11-08 11:40:34,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89436 states, 89435 states have (on average 1.051188013641192) internal successors, (94013), 89435 states have internal predecessors, (94013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:35,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89436 states to 89436 states and 94013 transitions. [2024-11-08 11:40:35,133 INFO L78 Accepts]: Start accepts. Automaton has 89436 states and 94013 transitions. Word has length 1061 [2024-11-08 11:40:35,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:40:35,134 INFO L471 AbstractCegarLoop]: Abstraction has 89436 states and 94013 transitions. [2024-11-08 11:40:35,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 201.25) internal successors, (805), 4 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:35,134 INFO L276 IsEmpty]: Start isEmpty. Operand 89436 states and 94013 transitions. [2024-11-08 11:40:35,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1063 [2024-11-08 11:40:35,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:40:35,183 INFO L215 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, 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, 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, 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, 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] [2024-11-08 11:40:35,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 11:40:35,184 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:40:35,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:40:35,184 INFO L85 PathProgramCache]: Analyzing trace with hash -512857247, now seen corresponding path program 1 times [2024-11-08 11:40:35,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:40:35,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591845917] [2024-11-08 11:40:35,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:40:35,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:40:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:40:35,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1659 backedges. 927 proven. 0 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2024-11-08 11:40:35,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:40:35,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591845917] [2024-11-08 11:40:35,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591845917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:40:35,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:40:35,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:40:35,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185428023] [2024-11-08 11:40:35,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:40:35,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:40:35,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:40:35,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:40:35,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:40:35,486 INFO L87 Difference]: Start difference. First operand 89436 states and 94013 transitions. Second operand has 3 states, 3 states have (on average 158.0) 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) [2024-11-08 11:40:37,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:40:37,133 INFO L93 Difference]: Finished difference Result 178011 states and 187242 transitions. [2024-11-08 11:40:37,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:40:37,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 158.0) 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 1062 [2024-11-08 11:40:37,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:40:37,241 INFO L225 Difference]: With dead ends: 178011 [2024-11-08 11:40:37,242 INFO L226 Difference]: Without dead ends: 89002 [2024-11-08 11:40:37,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:40:37,291 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 485 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:40:37,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 149 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:40:37,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89002 states. [2024-11-08 11:40:38,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89002 to 84319. [2024-11-08 11:40:38,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84319 states, 84318 states have (on average 1.0493607533385516) internal successors, (88480), 84318 states have internal predecessors, (88480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:38,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84319 states to 84319 states and 88480 transitions. [2024-11-08 11:40:38,445 INFO L78 Accepts]: Start accepts. Automaton has 84319 states and 88480 transitions. Word has length 1062 [2024-11-08 11:40:38,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:40:38,445 INFO L471 AbstractCegarLoop]: Abstraction has 84319 states and 88480 transitions. [2024-11-08 11:40:38,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.0) 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) [2024-11-08 11:40:38,446 INFO L276 IsEmpty]: Start isEmpty. Operand 84319 states and 88480 transitions. [2024-11-08 11:40:38,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1179 [2024-11-08 11:40:38,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:40:38,503 INFO L215 NwaCegarLoop]: trace histogram [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, 5, 5, 5, 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, 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, 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] [2024-11-08 11:40:38,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 11:40:38,504 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:40:38,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:40:38,504 INFO L85 PathProgramCache]: Analyzing trace with hash 597370626, now seen corresponding path program 1 times [2024-11-08 11:40:38,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:40:38,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309639665] [2024-11-08 11:40:38,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:40:38,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:40:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat