./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem17_label47.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem17_label47.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 584120db80e48cf9596b5da45bc5f64e7e8f9b48dd0380aa05459606ea632f16 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-21 22:34:14,469 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 22:34:14,542 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-21 22:34:14,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 22:34:14,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 22:34:14,584 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 22:34:14,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 22:34:14,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 22:34:14,588 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-21 22:34:14,589 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-21 22:34:14,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 22:34:14,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 22:34:14,591 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 22:34:14,591 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 22:34:14,592 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 22:34:14,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 22:34:14,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 22:34:14,595 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 22:34:14,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 22:34:14,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 22:34:14,596 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 22:34:14,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 22:34:14,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 22:34:14,597 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 22:34:14,597 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-21 22:34:14,598 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 22:34:14,598 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 22:34:14,598 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 22:34:14,599 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 22:34:14,599 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 22:34:14,600 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 22:34:14,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 22:34:14,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 22:34:14,601 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 22:34:14,602 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 22:34:14,602 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 22:34:14,602 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 22:34:14,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 22:34:14,602 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 22:34:14,603 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-21 22:34:14,603 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-21 22:34:14,603 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-21 22:34:14,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 584120db80e48cf9596b5da45bc5f64e7e8f9b48dd0380aa05459606ea632f16 [2024-11-21 22:34:14,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 22:34:14,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 22:34:14,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 22:34:14,902 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 22:34:14,903 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 22:34:14,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem17_label47.c [2024-11-21 22:34:16,396 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-21 22:34:16,753 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 22:34:16,755 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label47.c [2024-11-21 22:34:16,782 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af3ab7a79/9f478f7dec91428cb957e862682936fe/FLAGf9789738f [2024-11-21 22:34:16,797 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af3ab7a79/9f478f7dec91428cb957e862682936fe [2024-11-21 22:34:16,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 22:34:16,802 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 22:34:16,804 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 22:34:16,804 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 22:34:16,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 22:34:16,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:34:16" (1/1) ... [2024-11-21 22:34:16,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a186322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:16, skipping insertion in model container [2024-11-21 22:34:16,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:34:16" (1/1) ... [2024-11-21 22:34:16,895 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 22:34:17,180 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_label47.c[6608,6621] [2024-11-21 22:34:17,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 22:34:17,691 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 22:34:17,720 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_label47.c[6608,6621] [2024-11-21 22:34:17,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 22:34:17,999 INFO L204 MainTranslator]: Completed translation [2024-11-21 22:34:18,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:17 WrapperNode [2024-11-21 22:34:18,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 22:34:18,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 22:34:18,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 22:34:18,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 22:34:18,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:17" (1/1) ... [2024-11-21 22:34:18,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:17" (1/1) ... [2024-11-21 22:34:18,390 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2613 [2024-11-21 22:34:18,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 22:34:18,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 22:34:18,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 22:34:18,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 22:34:18,403 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:17" (1/1) ... [2024-11-21 22:34:18,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:17" (1/1) ... [2024-11-21 22:34:18,460 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:17" (1/1) ... [2024-11-21 22:34:18,638 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]. [2024-11-21 22:34:18,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:17" (1/1) ... [2024-11-21 22:34:18,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:17" (1/1) ... [2024-11-21 22:34:18,796 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:17" (1/1) ... [2024-11-21 22:34:18,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:17" (1/1) ... [2024-11-21 22:34:18,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:17" (1/1) ... [2024-11-21 22:34:18,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:17" (1/1) ... [2024-11-21 22:34:18,901 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 22:34:18,903 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 22:34:18,903 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 22:34:18,904 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 22:34:18,904 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:17" (1/1) ... [2024-11-21 22:34:18,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 22:34:18,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 22:34:18,939 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) [2024-11-21 22:34:18,941 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 [2024-11-21 22:34:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 22:34:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-21 22:34:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 22:34:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 22:34:19,045 INFO L238 CfgBuilder]: Building ICFG [2024-11-21 22:34:19,047 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 22:34:22,260 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-11-21 22:34:22,260 INFO L287 CfgBuilder]: Performing block encoding [2024-11-21 22:34:22,292 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 22:34:22,296 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-21 22:34:22,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:34:22 BoogieIcfgContainer [2024-11-21 22:34:22,298 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 22:34:22,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 22:34:22,301 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 22:34:22,304 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 22:34:22,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:34:16" (1/3) ... [2024-11-21 22:34:22,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a66c210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:34:22, skipping insertion in model container [2024-11-21 22:34:22,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:34:17" (2/3) ... [2024-11-21 22:34:22,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a66c210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:34:22, skipping insertion in model container [2024-11-21 22:34:22,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:34:22" (3/3) ... [2024-11-21 22:34:22,308 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label47.c [2024-11-21 22:34:22,325 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 22:34:22,326 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-21 22:34:22,416 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-21 22:34:22,423 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;@519f4779, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 22:34:22,423 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 22:34:22,433 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) [2024-11-21 22:34:22,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-21 22:34:22,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:22,444 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] [2024-11-21 22:34:22,445 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:22,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:22,451 INFO L85 PathProgramCache]: Analyzing trace with hash 626000386, now seen corresponding path program 1 times [2024-11-21 22:34:22,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:22,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085832201] [2024-11-21 22:34:22,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:22,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:22,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:34:22,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:22,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085832201] [2024-11-21 22:34:22,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085832201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:22,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:22,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:34:22,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069948271] [2024-11-21 22:34:22,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:22,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:22,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:22,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:22,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:22,891 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 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:25,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:25,335 INFO L93 Difference]: Finished difference Result 1644 states and 3029 transitions. [2024-11-21 22:34:25,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:25,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2024-11-21 22:34:25,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:25,355 INFO L225 Difference]: With dead ends: 1644 [2024-11-21 22:34:25,355 INFO L226 Difference]: Without dead ends: 977 [2024-11-21 22:34:25,360 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 [2024-11-21 22:34:25,363 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 444 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 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, 2.3s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:25,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 503 Invalid, 1802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-21 22:34:25,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-11-21 22:34:25,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 971. [2024-11-21 22:34:25,440 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) [2024-11-21 22:34:25,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1507 transitions. [2024-11-21 22:34:25,445 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1507 transitions. Word has length 44 [2024-11-21 22:34:25,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:25,446 INFO L471 AbstractCegarLoop]: Abstraction has 971 states and 1507 transitions. [2024-11-21 22:34:25,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:25,446 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1507 transitions. [2024-11-21 22:34:25,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-21 22:34:25,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:25,451 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:25,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 22:34:25,452 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:25,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:25,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1801670618, now seen corresponding path program 1 times [2024-11-21 22:34:25,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:25,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146237348] [2024-11-21 22:34:25,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:25,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:25,658 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:34:25,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:25,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146237348] [2024-11-21 22:34:25,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146237348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:25,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:25,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:34:25,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221008338] [2024-11-21 22:34:25,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:25,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:25,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:25,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:25,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:25,667 INFO L87 Difference]: Start difference. First operand 971 states and 1507 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:27,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:27,951 INFO L93 Difference]: Finished difference Result 2815 states and 4382 transitions. [2024-11-21 22:34:27,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:27,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-11-21 22:34:27,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:27,960 INFO L225 Difference]: With dead ends: 2815 [2024-11-21 22:34:27,960 INFO L226 Difference]: Without dead ends: 1846 [2024-11-21 22:34:27,964 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 [2024-11-21 22:34:27,965 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 407 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:27,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 580 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-21 22:34:27,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2024-11-21 22:34:28,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1841. [2024-11-21 22:34:28,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1841 states, 1840 states have (on average 1.3505434782608696) internal successors, (2485), 1840 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:28,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2485 transitions. [2024-11-21 22:34:28,021 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2485 transitions. Word has length 111 [2024-11-21 22:34:28,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:28,022 INFO L471 AbstractCegarLoop]: Abstraction has 1841 states and 2485 transitions. [2024-11-21 22:34:28,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:28,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2485 transitions. [2024-11-21 22:34:28,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-21 22:34:28,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:28,030 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:28,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-21 22:34:28,031 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:28,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:28,032 INFO L85 PathProgramCache]: Analyzing trace with hash 148499438, now seen corresponding path program 1 times [2024-11-21 22:34:28,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:28,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64646900] [2024-11-21 22:34:28,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:28,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:28,336 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:34:28,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:28,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64646900] [2024-11-21 22:34:28,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64646900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:28,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:28,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:28,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425056465] [2024-11-21 22:34:28,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:28,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:34:28,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:28,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:34:28,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:34:28,343 INFO L87 Difference]: Start difference. First operand 1841 states and 2485 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:31,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:31,828 INFO L93 Difference]: Finished difference Result 5865 states and 8159 transitions. [2024-11-21 22:34:31,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:34:31,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-11-21 22:34:31,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:31,845 INFO L225 Difference]: With dead ends: 5865 [2024-11-21 22:34:31,845 INFO L226 Difference]: Without dead ends: 4026 [2024-11-21 22:34:31,849 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 [2024-11-21 22:34:31,851 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 1001 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 2760 mSolverCounterSat, 760 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 3520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 760 IncrementalHoareTripleChecker+Valid, 2760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:31,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 414 Invalid, 3520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [760 Valid, 2760 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-21 22:34:31,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4026 states. [2024-11-21 22:34:31,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4026 to 4020. [2024-11-21 22:34:31,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4020 states, 4019 states have (on average 1.3264493655138094) internal successors, (5331), 4019 states have internal predecessors, (5331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:31,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4020 states to 4020 states and 5331 transitions. [2024-11-21 22:34:31,946 INFO L78 Accepts]: Start accepts. Automaton has 4020 states and 5331 transitions. Word has length 114 [2024-11-21 22:34:31,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:31,948 INFO L471 AbstractCegarLoop]: Abstraction has 4020 states and 5331 transitions. [2024-11-21 22:34:31,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:31,949 INFO L276 IsEmpty]: Start isEmpty. Operand 4020 states and 5331 transitions. [2024-11-21 22:34:31,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-21 22:34:31,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:31,958 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, 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] [2024-11-21 22:34:31,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-21 22:34:31,959 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:31,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:31,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1947040115, now seen corresponding path program 1 times [2024-11-21 22:34:31,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:31,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918204173] [2024-11-21 22:34:31,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:31,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:32,237 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-21 22:34:32,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:32,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918204173] [2024-11-21 22:34:32,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918204173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:32,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:32,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-21 22:34:32,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939257930] [2024-11-21 22:34:32,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:32,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:32,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:32,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:32,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:32,244 INFO L87 Difference]: Start difference. First operand 4020 states and 5331 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:34,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:34,122 INFO L93 Difference]: Finished difference Result 10602 states and 14367 transitions. [2024-11-21 22:34:34,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:34,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 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 179 [2024-11-21 22:34:34,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:34,145 INFO L225 Difference]: With dead ends: 10602 [2024-11-21 22:34:34,145 INFO L226 Difference]: Without dead ends: 6580 [2024-11-21 22:34:34,151 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 [2024-11-21 22:34:34,152 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 386 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.8s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:34,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 591 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-21 22:34:34,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6580 states. [2024-11-21 22:34:34,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6580 to 5301. [2024-11-21 22:34:34,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5301 states, 5300 states have (on average 1.2269811320754718) internal successors, (6503), 5300 states have internal predecessors, (6503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:34,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5301 states to 5301 states and 6503 transitions. [2024-11-21 22:34:34,251 INFO L78 Accepts]: Start accepts. Automaton has 5301 states and 6503 transitions. Word has length 179 [2024-11-21 22:34:34,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:34,252 INFO L471 AbstractCegarLoop]: Abstraction has 5301 states and 6503 transitions. [2024-11-21 22:34:34,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:34,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5301 states and 6503 transitions. [2024-11-21 22:34:34,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-21 22:34:34,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:34,257 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, 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] [2024-11-21 22:34:34,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-21 22:34:34,258 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:34,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:34,259 INFO L85 PathProgramCache]: Analyzing trace with hash 402637231, now seen corresponding path program 1 times [2024-11-21 22:34:34,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:34,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727085034] [2024-11-21 22:34:34,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:34,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:34,697 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 22:34:34,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:34,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727085034] [2024-11-21 22:34:34,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727085034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:34,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:34,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-21 22:34:34,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354977682] [2024-11-21 22:34:34,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:34,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 22:34:34,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:34,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 22:34:34,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-21 22:34:34,703 INFO L87 Difference]: Start difference. First operand 5301 states and 6503 transitions. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:37,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:37,001 INFO L93 Difference]: Finished difference Result 13172 states and 16544 transitions. [2024-11-21 22:34:37,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:34:37,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 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 192 [2024-11-21 22:34:37,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:37,027 INFO L225 Difference]: With dead ends: 13172 [2024-11-21 22:34:37,027 INFO L226 Difference]: Without dead ends: 7873 [2024-11-21 22:34:37,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-21 22:34:37,036 INFO L432 NwaCegarLoop]: 757 mSDtfsCounter, 593 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 2425 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 3014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 2425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:37,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 917 Invalid, 3014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 2425 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-21 22:34:37,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7873 states. [2024-11-21 22:34:37,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7873 to 7858. [2024-11-21 22:34:37,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7858 states, 7857 states have (on average 1.2102583683339696) internal successors, (9509), 7857 states have internal predecessors, (9509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:37,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7858 states to 7858 states and 9509 transitions. [2024-11-21 22:34:37,211 INFO L78 Accepts]: Start accepts. Automaton has 7858 states and 9509 transitions. Word has length 192 [2024-11-21 22:34:37,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:37,212 INFO L471 AbstractCegarLoop]: Abstraction has 7858 states and 9509 transitions. [2024-11-21 22:34:37,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:37,212 INFO L276 IsEmpty]: Start isEmpty. Operand 7858 states and 9509 transitions. [2024-11-21 22:34:37,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-21 22:34:37,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:37,216 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, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2024-11-21 22:34:37,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-21 22:34:37,217 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:37,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:37,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1325173592, now seen corresponding path program 1 times [2024-11-21 22:34:37,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:37,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155183334] [2024-11-21 22:34:37,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:37,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:37,575 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-11-21 22:34:37,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:37,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155183334] [2024-11-21 22:34:37,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155183334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:37,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:37,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:37,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804605302] [2024-11-21 22:34:37,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:37,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:37,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:37,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:37,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:37,580 INFO L87 Difference]: Start difference. First operand 7858 states and 9509 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) [2024-11-21 22:34:39,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:39,642 INFO L93 Difference]: Finished difference Result 23005 states and 27850 transitions. [2024-11-21 22:34:39,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:39,643 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 296 [2024-11-21 22:34:39,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:39,680 INFO L225 Difference]: With dead ends: 23005 [2024-11-21 22:34:39,680 INFO L226 Difference]: Without dead ends: 15149 [2024-11-21 22:34:39,691 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 [2024-11-21 22:34:39,692 INFO L432 NwaCegarLoop]: 873 mSDtfsCounter, 463 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1652 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 1652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:39,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 923 Invalid, 1876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 1652 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-21 22:34:39,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15149 states. [2024-11-21 22:34:39,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15149 to 12995. [2024-11-21 22:34:39,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12995 states, 12994 states have (on average 1.2274126519932276) internal successors, (15949), 12994 states have internal predecessors, (15949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:39,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12995 states to 12995 states and 15949 transitions. [2024-11-21 22:34:39,893 INFO L78 Accepts]: Start accepts. Automaton has 12995 states and 15949 transitions. Word has length 296 [2024-11-21 22:34:39,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:39,895 INFO L471 AbstractCegarLoop]: Abstraction has 12995 states and 15949 transitions. [2024-11-21 22:34:39,895 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) [2024-11-21 22:34:39,895 INFO L276 IsEmpty]: Start isEmpty. Operand 12995 states and 15949 transitions. [2024-11-21 22:34:39,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-11-21 22:34:39,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:39,899 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:39,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-21 22:34:39,900 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:39,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:39,900 INFO L85 PathProgramCache]: Analyzing trace with hash -918027661, now seen corresponding path program 1 times [2024-11-21 22:34:39,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:39,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936908336] [2024-11-21 22:34:39,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:39,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2024-11-21 22:34:40,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:40,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936908336] [2024-11-21 22:34:40,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936908336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:40,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:40,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:40,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242085624] [2024-11-21 22:34:40,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:40,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:40,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:40,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:40,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:40,244 INFO L87 Difference]: Start difference. First operand 12995 states and 15949 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:42,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:42,111 INFO L93 Difference]: Finished difference Result 31501 states and 38602 transitions. [2024-11-21 22:34:42,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:42,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 297 [2024-11-21 22:34:42,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:42,145 INFO L225 Difference]: With dead ends: 31501 [2024-11-21 22:34:42,146 INFO L226 Difference]: Without dead ends: 17658 [2024-11-21 22:34:42,163 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 [2024-11-21 22:34:42,164 INFO L432 NwaCegarLoop]: 881 mSDtfsCounter, 400 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 1620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:42,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 952 Invalid, 1620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-21 22:34:42,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17658 states. [2024-11-21 22:34:42,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17658 to 12121. [2024-11-21 22:34:42,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12121 states, 12120 states have (on average 1.1797029702970296) internal successors, (14298), 12120 states have internal predecessors, (14298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:42,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12121 states to 12121 states and 14298 transitions. [2024-11-21 22:34:42,375 INFO L78 Accepts]: Start accepts. Automaton has 12121 states and 14298 transitions. Word has length 297 [2024-11-21 22:34:42,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:42,376 INFO L471 AbstractCegarLoop]: Abstraction has 12121 states and 14298 transitions. [2024-11-21 22:34:42,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:42,377 INFO L276 IsEmpty]: Start isEmpty. Operand 12121 states and 14298 transitions. [2024-11-21 22:34:42,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2024-11-21 22:34:42,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:42,383 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-21 22:34:42,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-21 22:34:42,383 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:42,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:42,384 INFO L85 PathProgramCache]: Analyzing trace with hash -2082452149, now seen corresponding path program 1 times [2024-11-21 22:34:42,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:42,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515845881] [2024-11-21 22:34:42,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:42,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:42,688 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-21 22:34:42,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:42,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515845881] [2024-11-21 22:34:42,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515845881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:42,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:42,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:42,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258560939] [2024-11-21 22:34:42,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:42,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:42,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:42,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:42,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:42,691 INFO L87 Difference]: Start difference. First operand 12121 states and 14298 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:44,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:44,492 INFO L93 Difference]: Finished difference Result 31045 states and 36681 transitions. [2024-11-21 22:34:44,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:44,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 314 [2024-11-21 22:34:44,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:44,530 INFO L225 Difference]: With dead ends: 31045 [2024-11-21 22:34:44,530 INFO L226 Difference]: Without dead ends: 18926 [2024-11-21 22:34:44,546 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 [2024-11-21 22:34:44,547 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 449 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:44,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 405 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-21 22:34:44,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18926 states. [2024-11-21 22:34:44,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18926 to 16793. [2024-11-21 22:34:44,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16793 states, 16792 states have (on average 1.167877560743211) internal successors, (19611), 16792 states have internal predecessors, (19611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:44,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16793 states to 16793 states and 19611 transitions. [2024-11-21 22:34:44,761 INFO L78 Accepts]: Start accepts. Automaton has 16793 states and 19611 transitions. Word has length 314 [2024-11-21 22:34:44,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:44,762 INFO L471 AbstractCegarLoop]: Abstraction has 16793 states and 19611 transitions. [2024-11-21 22:34:44,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:44,762 INFO L276 IsEmpty]: Start isEmpty. Operand 16793 states and 19611 transitions. [2024-11-21 22:34:44,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-21 22:34:44,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:44,770 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:44,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-21 22:34:44,770 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:44,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:44,771 INFO L85 PathProgramCache]: Analyzing trace with hash -2095784456, now seen corresponding path program 1 times [2024-11-21 22:34:44,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:44,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128626148] [2024-11-21 22:34:44,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:44,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:45,155 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2024-11-21 22:34:45,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:45,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128626148] [2024-11-21 22:34:45,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128626148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:45,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:45,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:45,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513872088] [2024-11-21 22:34:45,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:45,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:45,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:45,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:45,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:45,158 INFO L87 Difference]: Start difference. First operand 16793 states and 19611 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:46,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:46,859 INFO L93 Difference]: Finished difference Result 41278 states and 48341 transitions. [2024-11-21 22:34:46,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:46,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 358 [2024-11-21 22:34:46,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:46,895 INFO L225 Difference]: With dead ends: 41278 [2024-11-21 22:34:46,896 INFO L226 Difference]: Without dead ends: 23623 [2024-11-21 22:34:46,913 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 [2024-11-21 22:34:46,914 INFO L432 NwaCegarLoop]: 738 mSDtfsCounter, 482 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 1587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:46,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 801 Invalid, 1587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-21 22:34:46,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23623 states. [2024-11-21 22:34:47,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23623 to 21064. [2024-11-21 22:34:47,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21064 states, 21063 states have (on average 1.166595451740018) internal successors, (24572), 21063 states have internal predecessors, (24572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:47,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21064 states to 21064 states and 24572 transitions. [2024-11-21 22:34:47,171 INFO L78 Accepts]: Start accepts. Automaton has 21064 states and 24572 transitions. Word has length 358 [2024-11-21 22:34:47,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:47,172 INFO L471 AbstractCegarLoop]: Abstraction has 21064 states and 24572 transitions. [2024-11-21 22:34:47,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:47,172 INFO L276 IsEmpty]: Start isEmpty. Operand 21064 states and 24572 transitions. [2024-11-21 22:34:47,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2024-11-21 22:34:47,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:47,180 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, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:47,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-21 22:34:47,181 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:47,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:47,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1853233684, now seen corresponding path program 1 times [2024-11-21 22:34:47,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:47,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939424505] [2024-11-21 22:34:47,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:47,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:47,801 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 447 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-21 22:34:47,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:47,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939424505] [2024-11-21 22:34:47,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939424505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:47,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:47,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 22:34:47,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246528923] [2024-11-21 22:34:47,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:47,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:34:47,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:47,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:34:47,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:34:47,804 INFO L87 Difference]: Start difference. First operand 21064 states and 24572 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:50,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:50,390 INFO L93 Difference]: Finished difference Result 61335 states and 70911 transitions. [2024-11-21 22:34:50,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:34:50,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 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 366 [2024-11-21 22:34:50,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:50,452 INFO L225 Difference]: With dead ends: 61335 [2024-11-21 22:34:50,452 INFO L226 Difference]: Without dead ends: 39848 [2024-11-21 22:34:50,478 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 [2024-11-21 22:34:50,479 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 920 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 2488 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 3022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 2488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:50,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 190 Invalid, 3022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [534 Valid, 2488 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-21 22:34:50,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39848 states. [2024-11-21 22:34:50,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39848 to 26634. [2024-11-21 22:34:50,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26634 states, 26633 states have (on average 1.168475199939924) internal successors, (31120), 26633 states have internal predecessors, (31120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:50,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26634 states to 26634 states and 31120 transitions. [2024-11-21 22:34:50,862 INFO L78 Accepts]: Start accepts. Automaton has 26634 states and 31120 transitions. Word has length 366 [2024-11-21 22:34:50,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:50,864 INFO L471 AbstractCegarLoop]: Abstraction has 26634 states and 31120 transitions. [2024-11-21 22:34:50,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:50,865 INFO L276 IsEmpty]: Start isEmpty. Operand 26634 states and 31120 transitions. [2024-11-21 22:34:50,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-11-21 22:34:50,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:50,876 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:50,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-21 22:34:50,878 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:50,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:50,879 INFO L85 PathProgramCache]: Analyzing trace with hash 773910742, now seen corresponding path program 1 times [2024-11-21 22:34:50,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:50,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795228702] [2024-11-21 22:34:50,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:50,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:51,269 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-21 22:34:51,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:51,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795228702] [2024-11-21 22:34:51,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795228702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:51,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:51,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:51,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769080942] [2024-11-21 22:34:51,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:51,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:51,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:51,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:51,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:51,271 INFO L87 Difference]: Start difference. First operand 26634 states and 31120 transitions. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:52,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:52,960 INFO L93 Difference]: Finished difference Result 64404 states and 75814 transitions. [2024-11-21 22:34:52,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:52,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 386 [2024-11-21 22:34:52,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:53,005 INFO L225 Difference]: With dead ends: 64404 [2024-11-21 22:34:53,005 INFO L226 Difference]: Without dead ends: 36922 [2024-11-21 22:34:53,032 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 [2024-11-21 22:34:53,033 INFO L432 NwaCegarLoop]: 813 mSDtfsCounter, 379 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:53,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 886 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-21 22:34:53,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36922 states. [2024-11-21 22:34:53,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36922 to 36058. [2024-11-21 22:34:53,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36058 states, 36057 states have (on average 1.145353190781263) internal successors, (41298), 36057 states have internal predecessors, (41298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:53,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36058 states to 36058 states and 41298 transitions. [2024-11-21 22:34:53,454 INFO L78 Accepts]: Start accepts. Automaton has 36058 states and 41298 transitions. Word has length 386 [2024-11-21 22:34:53,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:53,455 INFO L471 AbstractCegarLoop]: Abstraction has 36058 states and 41298 transitions. [2024-11-21 22:34:53,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:53,455 INFO L276 IsEmpty]: Start isEmpty. Operand 36058 states and 41298 transitions. [2024-11-21 22:34:53,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-21 22:34:53,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:53,466 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:53,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-21 22:34:53,467 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:53,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:53,467 INFO L85 PathProgramCache]: Analyzing trace with hash 92841162, now seen corresponding path program 1 times [2024-11-21 22:34:53,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:53,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488420556] [2024-11-21 22:34:53,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:53,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:54,003 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-21 22:34:54,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:54,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488420556] [2024-11-21 22:34:54,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488420556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:54,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:54,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:34:54,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019158260] [2024-11-21 22:34:54,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:54,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:34:54,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:54,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:34:54,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:34:54,006 INFO L87 Difference]: Start difference. First operand 36058 states and 41298 transitions. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:55,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:55,760 INFO L93 Difference]: Finished difference Result 82782 states and 94745 transitions. [2024-11-21 22:34:55,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:34:55,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 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 433 [2024-11-21 22:34:55,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:55,812 INFO L225 Difference]: With dead ends: 82782 [2024-11-21 22:34:55,812 INFO L226 Difference]: Without dead ends: 45438 [2024-11-21 22:34:55,842 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 [2024-11-21 22:34:55,843 INFO L432 NwaCegarLoop]: 690 mSDtfsCounter, 320 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:55,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 746 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-21 22:34:55,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45438 states. [2024-11-21 22:34:56,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45438 to 36049. [2024-11-21 22:34:56,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36049 states, 36048 states have (on average 1.1423102529960054) internal successors, (41178), 36048 states have internal predecessors, (41178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:56,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36049 states to 36049 states and 41178 transitions. [2024-11-21 22:34:56,295 INFO L78 Accepts]: Start accepts. Automaton has 36049 states and 41178 transitions. Word has length 433 [2024-11-21 22:34:56,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:34:56,296 INFO L471 AbstractCegarLoop]: Abstraction has 36049 states and 41178 transitions. [2024-11-21 22:34:56,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:56,297 INFO L276 IsEmpty]: Start isEmpty. Operand 36049 states and 41178 transitions. [2024-11-21 22:34:56,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-21 22:34:56,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:34:56,308 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:34:56,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-21 22:34:56,308 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:34:56,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:34:56,309 INFO L85 PathProgramCache]: Analyzing trace with hash 470334227, now seen corresponding path program 1 times [2024-11-21 22:34:56,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:34:56,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092077733] [2024-11-21 22:34:56,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:34:56,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:34:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:34:57,019 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 355 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-21 22:34:57,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:34:57,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092077733] [2024-11-21 22:34:57,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092077733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:34:57,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:34:57,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 22:34:57,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3080458] [2024-11-21 22:34:57,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:34:57,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:34:57,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:34:57,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:34:57,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:34:57,023 INFO L87 Difference]: Start difference. First operand 36049 states and 41178 transitions. Second operand has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:34:59,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:34:59,780 INFO L93 Difference]: Finished difference Result 106198 states and 120766 transitions. [2024-11-21 22:34:59,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:34:59,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 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 449 [2024-11-21 22:34:59,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:34:59,851 INFO L225 Difference]: With dead ends: 106198 [2024-11-21 22:34:59,851 INFO L226 Difference]: Without dead ends: 69726 [2024-11-21 22:34:59,880 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 [2024-11-21 22:34:59,880 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 806 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 2508 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 3042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 2508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:34:59,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 172 Invalid, 3042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [534 Valid, 2508 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-21 22:34:59,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69726 states. [2024-11-21 22:35:00,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69726 to 60287. [2024-11-21 22:35:00,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60287 states, 60286 states have (on average 1.1287695318979531) internal successors, (68049), 60286 states have internal predecessors, (68049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:00,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60287 states to 60287 states and 68049 transitions. [2024-11-21 22:35:00,653 INFO L78 Accepts]: Start accepts. Automaton has 60287 states and 68049 transitions. Word has length 449 [2024-11-21 22:35:00,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:35:00,654 INFO L471 AbstractCegarLoop]: Abstraction has 60287 states and 68049 transitions. [2024-11-21 22:35:00,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:00,654 INFO L276 IsEmpty]: Start isEmpty. Operand 60287 states and 68049 transitions. [2024-11-21 22:35:00,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-21 22:35:00,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:35:00,669 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:35:00,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-21 22:35:00,669 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:35:00,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:35:00,670 INFO L85 PathProgramCache]: Analyzing trace with hash -987294033, now seen corresponding path program 1 times [2024-11-21 22:35:00,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:35:00,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951055924] [2024-11-21 22:35:00,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:35:00,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:35:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:35:01,047 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 551 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-21 22:35:01,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:35:01,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951055924] [2024-11-21 22:35:01,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951055924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:35:01,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:35:01,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:35:01,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667495131] [2024-11-21 22:35:01,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:35:01,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:35:01,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:35:01,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:35:01,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:35:01,050 INFO L87 Difference]: Start difference. First operand 60287 states and 68049 transitions. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:03,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:35:03,015 INFO L93 Difference]: Finished difference Result 141000 states and 159171 transitions. [2024-11-21 22:35:03,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:35:03,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 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 468 [2024-11-21 22:35:03,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:35:03,101 INFO L225 Difference]: With dead ends: 141000 [2024-11-21 22:35:03,101 INFO L226 Difference]: Without dead ends: 79423 [2024-11-21 22:35:03,135 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 [2024-11-21 22:35:03,135 INFO L432 NwaCegarLoop]: 611 mSDtfsCounter, 445 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-21 22:35:03,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 649 Invalid, 1484 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [288 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-21 22:35:03,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79423 states. [2024-11-21 22:35:04,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79423 to 73450. [2024-11-21 22:35:04,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73450 states, 73449 states have (on average 1.1131124998298139) internal successors, (81757), 73449 states have internal predecessors, (81757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:04,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73450 states to 73450 states and 81757 transitions. [2024-11-21 22:35:04,420 INFO L78 Accepts]: Start accepts. Automaton has 73450 states and 81757 transitions. Word has length 468 [2024-11-21 22:35:04,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:35:04,421 INFO L471 AbstractCegarLoop]: Abstraction has 73450 states and 81757 transitions. [2024-11-21 22:35:04,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:04,422 INFO L276 IsEmpty]: Start isEmpty. Operand 73450 states and 81757 transitions. [2024-11-21 22:35:04,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-21 22:35:04,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:35:04,434 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-21 22:35:04,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-21 22:35:04,435 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:35:04,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:35:04,436 INFO L85 PathProgramCache]: Analyzing trace with hash -841867674, now seen corresponding path program 1 times [2024-11-21 22:35:04,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:35:04,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003228362] [2024-11-21 22:35:04,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:35:04,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:35:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:35:05,263 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-21 22:35:05,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:35:05,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003228362] [2024-11-21 22:35:05,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003228362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:35:05,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:35:05,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 22:35:05,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963956154] [2024-11-21 22:35:05,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:35:05,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:35:05,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:35:05,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:35:05,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:35:05,266 INFO L87 Difference]: Start difference. First operand 73450 states and 81757 transitions. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:07,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:35:07,938 INFO L93 Difference]: Finished difference Result 184847 states and 205031 transitions. [2024-11-21 22:35:07,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:35:07,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 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 472 [2024-11-21 22:35:07,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:35:08,073 INFO L225 Difference]: With dead ends: 184847 [2024-11-21 22:35:08,074 INFO L226 Difference]: Without dead ends: 110974 [2024-11-21 22:35:08,124 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 [2024-11-21 22:35:08,125 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 809 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 2423 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 2827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:35:08,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 187 Invalid, 2827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 2423 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-21 22:35:08,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110974 states. [2024-11-21 22:35:09,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110974 to 102446. [2024-11-21 22:35:09,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102446 states, 102445 states have (on average 1.1084874810874128) internal successors, (113559), 102445 states have internal predecessors, (113559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:09,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102446 states to 102446 states and 113559 transitions. [2024-11-21 22:35:09,789 INFO L78 Accepts]: Start accepts. Automaton has 102446 states and 113559 transitions. Word has length 472 [2024-11-21 22:35:09,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:35:09,790 INFO L471 AbstractCegarLoop]: Abstraction has 102446 states and 113559 transitions. [2024-11-21 22:35:09,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:09,790 INFO L276 IsEmpty]: Start isEmpty. Operand 102446 states and 113559 transitions. [2024-11-21 22:35:09,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2024-11-21 22:35:09,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:35:09,817 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-21 22:35:09,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-21 22:35:09,817 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:35:09,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:35:09,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1146238285, now seen corresponding path program 1 times [2024-11-21 22:35:09,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:35:09,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135508707] [2024-11-21 22:35:09,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:35:09,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:35:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:35:10,468 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-21 22:35:10,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:35:10,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135508707] [2024-11-21 22:35:10,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135508707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:35:10,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:35:10,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 22:35:10,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217292603] [2024-11-21 22:35:10,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:35:10,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:35:10,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:35:10,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:35:10,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:35:10,471 INFO L87 Difference]: Start difference. First operand 102446 states and 113559 transitions. Second operand has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:13,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:35:13,267 INFO L93 Difference]: Finished difference Result 231729 states and 256394 transitions. [2024-11-21 22:35:13,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:35:13,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 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 492 [2024-11-21 22:35:13,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:35:13,422 INFO L225 Difference]: With dead ends: 231729 [2024-11-21 22:35:13,422 INFO L226 Difference]: Without dead ends: 128008 [2024-11-21 22:35:13,481 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 [2024-11-21 22:35:13,482 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 807 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 539 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 2848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 539 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:35:13,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 208 Invalid, 2848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [539 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-21 22:35:13,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128008 states. [2024-11-21 22:35:14,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128008 to 101163. [2024-11-21 22:35:14,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101163 states, 101162 states have (on average 1.1060279551610288) internal successors, (111888), 101162 states have internal predecessors, (111888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:15,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101163 states to 101163 states and 111888 transitions. [2024-11-21 22:35:15,354 INFO L78 Accepts]: Start accepts. Automaton has 101163 states and 111888 transitions. Word has length 492 [2024-11-21 22:35:15,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:35:15,355 INFO L471 AbstractCegarLoop]: Abstraction has 101163 states and 111888 transitions. [2024-11-21 22:35:15,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:15,355 INFO L276 IsEmpty]: Start isEmpty. Operand 101163 states and 111888 transitions. [2024-11-21 22:35:15,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2024-11-21 22:35:15,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:35:15,377 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-21 22:35:15,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-21 22:35:15,377 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:35:15,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:35:15,378 INFO L85 PathProgramCache]: Analyzing trace with hash -280854508, now seen corresponding path program 1 times [2024-11-21 22:35:15,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:35:15,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916781908] [2024-11-21 22:35:15,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:35:15,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:35:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:35:16,023 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-21 22:35:16,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:35:16,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916781908] [2024-11-21 22:35:16,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916781908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:35:16,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:35:16,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 22:35:16,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817542824] [2024-11-21 22:35:16,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:35:16,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:35:16,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:35:16,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:35:16,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:35:16,027 INFO L87 Difference]: Start difference. First operand 101163 states and 111888 transitions. Second operand has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:18,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:35:18,914 INFO L93 Difference]: Finished difference Result 237301 states and 263341 transitions. [2024-11-21 22:35:18,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-21 22:35:18,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 0 states have call successors, (0), 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 512 [2024-11-21 22:35:18,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:35:19,072 INFO L225 Difference]: With dead ends: 237301 [2024-11-21 22:35:19,072 INFO L226 Difference]: Without dead ends: 136140 [2024-11-21 22:35:19,137 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 [2024-11-21 22:35:19,138 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 825 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 2762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-21 22:35:19,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 209 Invalid, 2762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-21 22:35:19,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136140 states. [2024-11-21 22:35:20,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136140 to 126769. [2024-11-21 22:35:20,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126769 states, 126768 states have (on average 1.1143111826328411) internal successors, (141259), 126768 states have internal predecessors, (141259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:20,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126769 states to 126769 states and 141259 transitions. [2024-11-21 22:35:20,931 INFO L78 Accepts]: Start accepts. Automaton has 126769 states and 141259 transitions. Word has length 512 [2024-11-21 22:35:20,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:35:20,931 INFO L471 AbstractCegarLoop]: Abstraction has 126769 states and 141259 transitions. [2024-11-21 22:35:20,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:20,931 INFO L276 IsEmpty]: Start isEmpty. Operand 126769 states and 141259 transitions. [2024-11-21 22:35:20,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-11-21 22:35:20,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:35:20,944 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 22:35:20,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-21 22:35:20,944 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:35:20,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:35:20,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1255111598, now seen corresponding path program 1 times [2024-11-21 22:35:20,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:35:20,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218017660] [2024-11-21 22:35:20,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:35:20,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:35:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:35:21,733 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 590 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-21 22:35:21,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:35:21,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218017660] [2024-11-21 22:35:21,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218017660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:35:21,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:35:21,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-21 22:35:21,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650367819] [2024-11-21 22:35:21,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:35:21,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-21 22:35:21,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:35:21,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-21 22:35:21,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-21 22:35:21,736 INFO L87 Difference]: Start difference. First operand 126769 states and 141259 transitions. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:24,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 22:35:24,006 INFO L93 Difference]: Finished difference Result 282461 states and 315838 transitions. [2024-11-21 22:35:24,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-21 22:35:24,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 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 531 [2024-11-21 22:35:24,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 22:35:24,216 INFO L225 Difference]: With dead ends: 282461 [2024-11-21 22:35:24,216 INFO L226 Difference]: Without dead ends: 155694 [2024-11-21 22:35:24,295 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 [2024-11-21 22:35:24,296 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 392 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-21 22:35:24,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 312 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-21 22:35:24,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155694 states. [2024-11-21 22:35:26,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155694 to 153981. [2024-11-21 22:35:26,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153981 states, 153980 states have (on average 1.1081828808936225) internal successors, (170638), 153980 states have internal predecessors, (170638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:26,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153981 states to 153981 states and 170638 transitions. [2024-11-21 22:35:26,595 INFO L78 Accepts]: Start accepts. Automaton has 153981 states and 170638 transitions. Word has length 531 [2024-11-21 22:35:26,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 22:35:26,596 INFO L471 AbstractCegarLoop]: Abstraction has 153981 states and 170638 transitions. [2024-11-21 22:35:26,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 22:35:26,596 INFO L276 IsEmpty]: Start isEmpty. Operand 153981 states and 170638 transitions. [2024-11-21 22:35:26,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-11-21 22:35:26,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 22:35:26,610 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-21 22:35:26,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-21 22:35:26,610 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 22:35:26,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 22:35:26,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1230945378, now seen corresponding path program 1 times [2024-11-21 22:35:26,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 22:35:26,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323047379] [2024-11-21 22:35:26,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 22:35:26,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 22:35:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 22:35:27,981 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 453 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-11-21 22:35:27,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 22:35:27,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323047379] [2024-11-21 22:35:27,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323047379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 22:35:27,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 22:35:27,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-21 22:35:27,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227768343] [2024-11-21 22:35:27,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 22:35:27,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-21 22:35:27,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 22:35:27,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-21 22:35:27,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-21 22:35:27,984 INFO L87 Difference]: Start difference. First operand 153981 states and 170638 transitions. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)